ori.gif (1448 bytes)

C Y G N U S

 

ori.gif (1448 bytes) Mythology and history

Mythology of Cygnus

              The origin of the representation as bird of these stars is Greek. It is thought that the original figure of the mesopotámica tradition had taken the name of Urakhga, prototype of the Rukh Arab, more known in the West like the great "Roc", a fiction personage inspired by the merchants of Bagdad, the story of Simbad the Sailor, content in Thousands and the One Nights.
                In his second it travels, Simbad found an egg of roc whose diameter was of 50 steps. When roc father arrived at the place where was the egg, Simbad was taken hold of its claws and the bird transported it flying until the valley of diamonds, from where it could return to house with a great treasure like booty.
                Different Greek myths exist that they speak of young men turned swans. Nevertheless, the most well-known and remarkable history is the one of Leda, handcuffs of king Tíndaro. Leda shared its bed with Zeus, who had adopted the form of a swan for his loving encounter; like consequence, Leda developed two eggs. Of first Elena of Troy was born and of the second the Dioscuros ("God children") Cástor and Polideuco Pólux were born. Both stars of the constellation of Gemini.

    

 

 

ori.gif (1448 bytes) Characteristics

            

Cygnus covers a zone with the very great sky and is included/understood if the graph in a square zone is observed. One is a boreal constellation that crosses the observable parallel +40º during the months of spring, summer and part of the autumn in the North hemisphere and the austral one during the very low winter on the horizon.  It limits the north with Cepheus and Draco, the east with Lyra, the south with Vulpecula and Pegasus and the west with Lacerta. In addition it crosses the equator of the Milky Route reason why rich in stars shining, stellar clusters gorgeous variable and cloudy stars, in addition to agglomerations of novae and supernovae is one.  It is characterized sometimes by its cross form denominating itself, cross of the north, destancando its star more shining Deneb, white and supergiant, 60,000 times greater than our Sun.

        Vista from the Earth the zone of Cygnus corresponds to an external spiral arm, in opposite direction al nucleus of the Milky Route, that is to about 4,000 years light of us. It is necessary to emphasize that the nucleus of the Milky Route we have to 30,000 years light in the direction of the constellation of Sagittarius. Cygnus culminates during the nights of July and August in the meridian or zenith in northern hemisfere where it turns out impressive to observe in nights very dark and moved away of the urban centers the Milky Way or also denominated in the Average Age in Europe like the Way of Santiago, Christian peregrination to the city santa of Santiago de Compostela that is in Spain. 

 

Constellation of Cygnus

 

Main stars

       Alpha, a; denominated Deneb that means in Arab the tail of oca. of magnitude 1.33 it is a white supergiant that is to 3,200 years light of us and 60,000 times greater than our Sun It is a spectacular supergiant.

      Beta, b;  denominated Albireo of color orange and magnitude 3,08. it is located in the South end of the constellation, light of us is to 386 years forms a binary system whose secondary it has a 5.30 magnitude and blue color, both are perfectly observed its colors with any telescope. It turns out precious to see both shining stars and orbiting on if same.

       Gamma, g;  denominated Sadr, of magnitude 2.30 and clear yellow color. Dista 543 years Earth light.

      Delta, d;   of magnitude 3.0, white color, is to 135 years light.

Other objects

      M 29; stellar cluster of magnitude 6.60 that is to 4,000 years light of us and has an age of 10 million years formed by 20 stars of the eighth magnitude.

     M 39; stellar cluster of magnitude 4.60, is to only 970 years light and has an age of 270 million years. of 31' of diameter arc.            

 

 

ori.gif (1448 bytes) Observations by telescope

D O U B L E

Nom: b R.A.: 19h.29m.

Dec: 33º38'

Mag: 3.1, 5.4 Sep.: 34" P.A.: 54º Nat:f Spec.:K, B
AOC: 99 DSC: 71 D.D.S.: 00-April-1984

beta

        NOTE: One is in a zone, very very rich; he is precious double a visible one at first, one is b Cygni or Albireo; the identification of the colors is simple, the main one is orange, however, the secondary one is bluish, blue a smooth one, form a set to expectacular, is one of those doubles that make history, are slightly separated, unfolding itself without difficulty with the eyeglass of 50x, although without a doubt some, the best image is obtained placing an eyeglass of 200x. Vale the pain to spend centuries contemplating similar spectacle

 

D O U B L E

Nom:17c1 R.A.: 19h.44m.

Dec: 33º38'

Mag: 5.1, 8.5 Sep.: 26" P.A.: 69º Nat:? Spec.:B, G
AOC: 100 DSC: 72 D.D.S.: 00-April-1984

D O U B L E

Nom: S 2576 R.A.: 19h.44m.

Dec: 33º29'

Mag: 8.3, 8.4 Sep.: 1.9" P.A.: 359º Nat:O Spec.:?, ?
AOC: 101 DSC: 73 D.D.S.: 00-April-1984

17x1

        NOTE: 17X1: One is in a rich zone; there is a remarkable difference of magnitude between the components, the main one is bluish, however, the secondary one is yellow although the color of the secondary hill to identify it. It is one pretty double and simple, it is unfolded without difficulty with the eyeglass of 50x.

        S 2576: One is to 20' of the previous double, is inprescindible the eyeglass of 200x to unfold it, profit not to identify the colors of both components due to the proximity of them, are oriented in sense north-south.

 

D O U B L E

Nom:S 2578 R.A.: 19h.44m.

Dec: 35º58'

Mag: 6.4, 7.2 Sep.: 15" P.A.: 124º Nat:f Spec.:A, K
AOC: 224 DSC: 159 D.D.S.: 20h.45m.(UT); 30-Sep.-1984 (prism)

sigma2578

        NOTE: One is in a very rich zone; there is a slight difference of magnitude between the components, are slightly separated, although certain it is that very little, it is unfolded without difficulty with the eyeglass of 50x.

 

D O U B L E

Nom:S 2534 R.A.: 19h.26m.

Dec: 36º26'

Mag: 7.9, 8.1 Sep.: 7" P.A.: 65º Nat:f Spec.:A, B
AOC: 225 DSC: 160 D.D.S.: 20h.50m.(UT); 30-Sep.-1984 (prism)

sigma2534

        NOTE: One is in a rich zone; there is a slight difference of magnitude between the components, are together, although it is unfolded without difficulty with 50x, although it is necessary to pay attention to it; I estimate white the main color of, and bluish the secondary one, although I am not absolutely safe due to the weakness of the components.

 

D O U B L E

Nom:S 46 App R.A.: 19h.40m.

Dec: 50º24'

Mag: 6.3,6.4 Sep.: 40" P.A.: 135º Nat:? Spec.:?,?
AOC: 226 DSC: 161 D.D.S.:20h.54m.(UT);30-Sep.-1984 (prism)

D O U B L E

Nom:16,c R.A.: 19h.41m.

Dec: 50º24'

Mag: 6.3,8.5 Sep.: 38" P.A.: 135º Nat:f Spec.:?,?
AOC: 227 DSC:162 D.D.S.: 20h.55m.(UT); 30-Sep.-1984 (prism)

D O U B L E

Nom: Not catalogue. R.A.: 19h.43m.

Dec: 50º47'

Mag: 8.0,10.0 Sep.: 35" P.A.: 90º Nat:? Spec.:?,?
AOC: 228 DSC: 163 D.D.S.: 20h.56m.(UT); 30-Sep.-1984 (prism)

D O U B L E

Nom: Not catalogue. R.A.: 19h.43m.

Dec: 51101'

Mag: 10.0,10.0 Sep.: 40" P.A.: 1301 Nat:? Spec.:M,G
AOC: 229 DSC: 164 D.D.S.: 20h.57m.(UT); 30-Sep.-1984 (prism)

sigma46app

        NOTE:S 4App: One is in a rich zone; there is a smallest difference of magnitude between the components of the double, are slightly separated, profit not to identify the colors, is unfolded without difficulty with the eyeglass of 50x.

        16, c: One is to 15' to the west of the previous double; there is a remarkable difference of magnitude between the components, are also, slightly separated, although profit not to identify the colors due to the weakness of the components.

         DSC 228: One is one catalogued double but not to identify it in the Sky Catalogue 2000.0; one is to 20' to the north of S 46 App; it is one unequal double of brightness, very weak and slightly separated components, like the previous ones are unfolded with 50x.

        DSC 229: 4Ãpp is to 40' to the north of S; one is like the previous one another catalogued but not identified double in Sky Catalogue; the components are very weak, approximately of the tenth magnitude, is unfolded without difficulty with 50x

 

P L A N E T A R Y   N E B U L A E

NGC:6826

M:--

R.A.: 19h.43m.

Dec: 50º24'

Mag:8.8

Dim:27"x24" AOC: 230 NCAO: 66
D.D.S.: 21h.04m.(UT); 30-Sep.-1984 (prism)  

ngc6826

        NOTE: One is to 10' of the double S 46 App; it is quite difficult to identify due to the small thing that is and in addition to that it is in a very rich zone; it is observed as a blurred star, but nothing else.

 

C L U S T E R

NGC:6811

M:--

R.A.: 19h.37m.

Dec: 46º27'

Mag:9.2

Dim:12' AOC: 231 NCAO: 67
D.D.S.: 20h.10m.(UT); 30-Sep.-1984 (prism)  

D O U B L E

Nom:Not catalogue. R.A.: 19h.42m.

Dec: 46º09'

Mag: 7.0,8.0 Sep.: 15" P.A.: 280º Nat:? Spec.:?,?
AOC: 232 DSC: 165 D.D.S.: 21h.12m.(UT); 30-Sep.-1984 (prism)

D O U B L E

Nom:OS 187 R.A.: 19h.41m.

Dec: 46º47'

Mag: 8.0, 8.5, 9.0 Sep.(AB): 10"

Sep.(AC): 20"

P.A.(AB): 45º

P.A.(AC): 100º

Nat(AB):?

Nat(AC): ?

Spec.:A, B, B
AOC: 233 DSC: 166 D.D.S.: 21H.13M.(UT); 30-Sep.-1984 (prism)

ngc6811

        NOTE: NGC 6811: One is in a rich zone; it is a pretty stellar cluster, has form of ring, story twenty stars of the same magnitude; PC is to 900, is very little concentrated towards the center, the phantom of the youngest star is A0 and has an age of 540 million years.

        DSC165: One is to 20' to the SSE of NGC6811; is one double catalogued but not identified in the Sky Catalogue 2000.0; there is a slight difference of magnitude, are ligermente separated, is unfolded with 50x.

        OS 187: One is a triple to 15' to the west; it is formed by very weak of uncertain colors and slightly separated components unfolding itself without difficulty with the eyeglass of 50x.

        The set in himself is very pretty with a precious stellar cluster and two precious doubles surrounding it.

 

C L U S T E R

NGC:6866

M:--

R.A.: 20h.02m.

Dec: 43º51'

Mag: 9.0

Dim:6'x2' AOC: 234 NCAO: 68
D.D.S.:21h.16m.(UT); 30-Sep.-1984 (prism)  

D O U B L E

Nom: h 1468 R.A.: 20h.01m.

Dec: 40º18'

Mag: 7.8, 8.8 Sep.: 13.0" P.A.: 279º Nat: ? Spec.: A, ?
AOC: 235 DSC: 167 D.D.S.:21h.18m.(UT); 30-Sep.-1984 (prism)

D O U B L E

Nom:OSS 196 R.A.: 20h.01m.

Dec: 40º52'

Mag: 7.0, 9.6 Sep.: 55.2" P.A.: 168º Nat:? Spec.:A, ?
AOC: 236 DSC: 168 D.D.S.: 21h.20m.(UT); 30-Sep.-1984 (prism)

ngc6866

        NOTE: NGC 6866: One is in a rich zone; it is formed by twenty stars, is a pretty stellar cluster oriented in an angle of 0ºó 180º. Parsecs is to 1,200, and has an age of 230 million years.

        h 1468: One double is to 5' to the west of NGC6866 is catalogued and identified in the Sky Catalogue; it is formed by two stars of the same magnitude, are slightly separated, is unfolded without difficulty with the eyeglass of 50x.

        OSS196: One is to 10' to the NGC6866 south; it is formed by two stars of very different considerable magnitude in eleven, are slightly separated, is unfolded without difficulty with the eyeglass of 50x. The set in himself, is very pretty and peculiar.

 

D O U B L E

Nom:b pm R.A.: 19h.42m.

Dec: 40º02'

Mag: 7.9, 7.9 Sep.: 102.1" P.A.: 165º Nat:? Spec.:A, ?
AOC:237 DSC: 169 D.D.S.:21h.33m.(UT); 30-Sep.-1984 (prism)

C L U S T E R

NGC:6819

M:--

R.A.: 19h.39m.

Dec: 40º08'

Mag:9.0

Dim:7' AOC: 238 NCAO: 69
D.D.S.: 21h.35m.(UT); 30-Sep.-1984 (prism)  

D O U B L E

Nom: Not catalogue. R.A.: 19h.39m.

Dec: 40º08'

Mag: 9.0,10.0 Sep.: 12" P.A.: 330º Nat:? Spec.:?,?
AOC: 239 DSC: 170 D.D.S.: 21h.39m.(UT); 30-Sep.-1984 (prism)

betapm

       NOTE: b p.m.: One is another catalogued and identified double in the Sky Catalogue; their components are very weak, are very separated almost 1'; profit not to identify it the colors, is unfolded without difficulty with the eyeglass of 50x.

        NGC 6819: Cluster deals with pretty stellar, very small, observes totally granulated, for that reason it is impossible to count the number of stars of which it comprises of the cluster, it is to 2,200 PC, and it has an age of 3,500 million years.

        DSC170: Double catalogued but not identified, of very weak and slightly separated components unfolding itself with 50x; profit not to identify it colors by the weakness of brightness of the components.

        The set formed by a stellar cluster very granulated and two doubles. He is very pretty and peculiar. In addition it is necessary to add that all it is in a very rich zone

 

D O U B L E

Nom:S 2486 R.A.: 19h.11m.

Dec: 49º45'

Mag: 6.5,6.7 Sep.: 8" P.A.: 210º Nat:ph Spec.:G,G
AOC: 240 DSC: 171 D.D.S.: 21h.37m.(UT); 30-Sep.-1984 (prism)

sigma2486

        NOTE: One is one very pretty double; it is one double brilliant, easy to locate, and with a small difference of magnitude between the components, something is together although it is unfolded with 50x; I have the impression that both are yellow, although am not absolutely safe.

 

D O U B L E

Nom: y R.A.: 19h.54m.

Dec: 52º18'

Mag: 5.0,7.6 Sep.: 3.6" P.A.: 176º Nat:ph Spec.:K,K
AOC: 241 DSC: 172 D.D.S.: 21h.44m.(UT); 30-Sep.-1984 (prism)

fi

        NOTE: One is in a somewhat rich zone; it is one double brilliant, easy to identify, both components are together being needed 200x to unfold it, I believe that both components are orange, is one pretty double

 

D O U B L E

Nom:S 2671 R.A.: 20h.17m.

Dec: 55º14'

Mag: 6.0,7.5 Sep.: 3.6" P.A.: 336º Nat:ph Spec.:B,B
AOC: 242 DSC: 173 D.D.S.:21h.55m.(UT); 30-Sep.-1984 (prism)

sigma2671

        NOTE: One is in a rich zone; something difficult to identify is unfolded with the eyeglass of 100x, since they are very together, is one very pretty double.

 

C L U S T E R

NGC:6996

M:--

R.A.: 20h.54m.

Dec: 44º28'

Mag:9.4

Dim:16' AOC: 321 NCAO: 89
D.D.S.: 22h.07m.(UT); 17-June-1985  

ngc6996

        NOTE: One is in a rich zone; it is a weak stellar cluster, granulated, dark and pretty, is located to 500 PC.

 

C L U S T E R

NGC:6991

M:--

R.A.: 20h.54m.

Dec: 47º16'

Mag: 8.9

Dim:25' AOC: 322 NCAO: 90
D.D.S.:22h.15m.(UT); 17-June-1985  

D O U B L E

Nom:59 R.A.: 20h.58m.

Dec: 47º20'

Mag: 4.0, 9.2 Sep.: 20" P.A.: 353º Nat:? Spec.:A,B
AOC: 323 DSC: 233 D.D.S.:22h.21m.(UT); 17-June-1985

ngc6991

        NOTE: NGC 6991: One is a small stellar cluster located in a rich zone; it is an cluster shining, and pretty, story approximately ten stars oriented in sense north-south.

        59: One is to 30' to the NGC6991 west, is a remarkable difference of magnitude between the components, is one pretty double and delicate, it is unfolded without difficulty with the eyeglass of 50x, the main one I believe that she is white, however, the secondary one is bluish.

 

C L U S T E R

NGC:7039

M:--

R.A.: 21h.10m.

Dec: 45º33'

Mag:7.0

Dim:40'x25' AOC: 324 NCAO: 91
D.D.S.:22h.32m.(UT); 17-June-1985  

ngc7039

        NOTE: One is in a zone, very very rich; he is precious, a shining one and simple stellar cluster, the observed direction is of sense north-south, they are distinguished and they appeared signalized several shining stars. That they emphasize on the others. One is located to 1400 PC, and has an age of 1600 million years.

 

C L U S T E R

NGC:7082

M:--

R.A.: 21h.27m.

Dec: 46º55'

Mag:9.5

Dim:20'x20' AOC: 325 NCAO: 92
D.D.S.: 22h.42m.(UT); 17-June-1985  

ngc7082

        NOTE: One is in a very rich zone; it is a shining cluster, story twenty stars without given direction. Is located to 1400 parsec, and has an age of about 1600 million years.

 

C L U S T E R

NGC:7092

M: 39

R.A.: 21h.30m.

Dec: 48º13'

Mag:5.2

Dim:25' AOC: 326 NCAO: 93
D.D.S.:22h.36m.(UT); 17-June-1985  

ngc7092

        NOTE: One is in a rich zone; it is a shining, great, rich cluster stellar and very pretty, parsecs is to single 270, has an age of only 270 million years, very young; the phantom of the youngest star is A0, is formed by 30 stars.

 

C L U S T E R

NGC:7086

M:--

R.A.: 21h.28m.

Dec: 51º25'

Mag:9.5

Dim:7' AOC: 327 NCAO: 94
D.D.S.: 21h.33m.(UT); 21-June-1985  

ngc7086

        NOTE: One is in a very rich zone; it is observed totally granulated, in nebular form, is something difficult his identification, is small, dark. Is located to 1200 parsecs, has an age of 85 million years, the star with the youngest phantom is of the A5 type.

 

C L U S T E R

IC:5154

M:--

R.A.: 21h.51m.

Dec: 47º02'

Mag:10.5

Dim:12' AOC: 328 NCAO: 95
D.D.S.:21h.39m.(UT); 20-June-1985  

ic5154

        NOTE: One is in a very rich zone; it is observed totally granulated, in nebular form, is something difficult his identification, he is small, shining and subtle. Is located to 1000 parsecs, has an age of 230 million years, the star with the youngest phantom is of the B1 type, has been nebular condensation due to its youth, is the famous Cocoon nebula. it is a nebula of pretty and, elliptical shining emission and amorphous and filamentous structure.

 

D O U B L E Nom: OS 214 R.A.: 21h.02m. Dec: 41º26'
Mag: 6.4,8.7 Sep.: 57" P.A.: 184º Nat:? Spec.:B,F
AOC: 330 DSC: 235 D.D.S.:21h.51m.(UT); 20-June-1985

osigma214

    NOTE: One is in a zone not very rich; there is a great difference of magnitude, are very separated, his colors are similarities, B and F; it is distinguished without difficulty with the eyeglass of 50x.

 

D O U B L E

Nom:61 R.A.: 21h.04m.

Dec: 38º28'

Mag: 5.6,6.3 Sep.: 29" P.A.: 146º Nat:O Spec.:K,K
AOC: 331 DSC: 236 D.D.S.: 21h.55m.(UT); 20-June-1985

61

        NOTE: One is in a rich zone; there is a small difference of magnitude, the separation is ideal, his colors are identified, she is pretty, it is distinguished with the eyeglass of 50x.

 

C L U S T E R

NGC:7063

M:--

R.A.: 21h.22m.

Dec: 36º16'

Mag:9.1

Dim:6' AOC: 332 NCAO: 96
D.D.S.: 22h.01m.(UT); 20-June-1985  

ngc7063

        NOTE: One is in a rich zone; it is a shining stellar cluster very easy to locate of small dimensions, very pretty, is located to 660 parsecs, it has an age of only 140 million years with a B8 phantom corresponding to the youngest star pertaining to the cluster formed by twelve stars.

 

D O U B L E

Nom:OS 437 R.A.: 21h.18m.

Dec: 32º15'

Mag: 6.9,7.5 Sep.: 2.2" P.A.: 28º Nat:ph? Spec.:K,K
AOC: 333 DSC: 237 D.D.S.:22h.05m.(UT); 20-June-1985

osigma437

        NOTE: One is in a very rich zone; there is a smallest difference of magnitude, are together, both components are orange, is unfolded without difficulty with the eyeglass of 50x.

 

D O U B L E

Nom:S 2762 R.A.: 21h.06m.

Dec: 30º00'

Mag: 5.7, 7.7, 9.0 Sep.(AB): 3.4"

Sep.(AC): 58"

P.A.(AB): 306º

P.A.(AC): 227º

Nat(AB):?

Nat(AC): op?

Spec.:K, K, A
AOC: 334 DSC: 238 D.D.S.:22h.12m.(UT); 20-June-1985

sigma2762

        NOTE: There is a small difference of magnitude in component AB; they are very together, unfolds with the eyeglass of 100x. Existe a great difference of magnitude between components BC, are very separated, the main one and the secondary one they are orange, however, the tertiary one is white, unfolds component BC with 50x.

 

D O U B L E

Nom:49 R.A.: 20h.39m.

Dec: 32º08'

Mag: 6.0, 8.4 Sep.: 2.8" P.A.: 48º Nat:f Spec.:A, A
AOC: 335 DSC: 239 D.D.S.: 22h.34m.(UT); 20-June-1985

49

        NOTE: There is a great difference of magnitude between the components, are very, very together, both components are white, is unfolded with 100x but with difficulty.

 

D O U B L E

Nom:S 2700 R.A.: 20h.33m.

Dec: 32º20'

Mag: 6.8, 8.6 Sep.: 24" P.A.: 283º Nat:f Spec.:A, A
AOC: 336 DSC: 240 D.D.S.:22h.57m.(UT); 20-June-1985

sigma2700

        NOTE: One is in a zone, very very rich; there is an appreciable difference of magnitude, are very separated, is unfolded without difficulty with the eyeglass of 50x, both components are white.

 

D O U B L E

Nom:S 2705 R.A.: 20h.35m.

Dec: 33º11'

Mag: 7.3, 8.5 Sep.: 3.1" P.A.: 262º Nat:f Spec.:A, A
AOC: 337 DSC: 241 D.D.S.: 23h.03m.(UT); 20-June-1985

sigma2705

        NOTE: One is in a rich zone; there is a slight difference of magnitude, are very together, both components are white, is unfolded with difficulty with the eyeglass of 100x.

 

D O U B L E

Nom:S 2708 R.A.: 20h.37m.

Dec: 38º28'

Mag: 6.8, 8.5 Sep.: 31" P.A.: 315º Nat:? Spec.:A, B
AOC: 339 DSC: 242 D.D.S.: 23h.10m.(UT); 20-June-1985

sigma2708

        NOTE: One is in a very rich zone; there is a great difference of magnitude between the components, are separated, is unfolded without difficulty with the eyeglass of 50x, the main one I see it blue, however, the secondary white.

 

D O U B L E

Nom:OS 414 R.A.: 20h.45m.

Dec: 42º13'

Mag: 7.4, 8.7 Sep.: 10" P.A.: 94º Nat:f Spec.:A, B
AOC: 339 DSC: 243 D.D.S.:23h.14m.(UT); 20-June-1985

osigma414

        NOTE: One is in a zone, very, very very rich; there is a slight difference of magnitude between the components, are slightly together, is unfolded without difficulty with the eyeglass of 50x, the main one is bluish and the secondary white.

 

C L U S T E R

NGC:6910

M:--

R.A.: 20h.21m.

Dec: 40º37'

Mag:6.7

Dim:10'x5' AOC: 340 NCAO: 97
D.D.S.: 23h.23m.(UT); 20-June-1985  

ngc6910

        NOTE: One is in a zone, very very rich; it is a precious stellar, delicate, pretty cluster and shining, it is identified easily since cygni is to 40' to the south of g, the stars most shining of the field come signalized; parsecs is to 1650, has ten million years solely, with the youngest phantom of the type Or8, have been observed component the nebular environs of cluster along with g, are formed by 50 stars, the nebula is very opaque and invisible with the R-90mm., it is to irrregular amorphous and filamentous, it is of emission, sensible to the plates, and red.

 

D O U B L E

Nom:S 2666 R.A.: 20h.16m.

Dec: 40º34'

Mag: 5.7, 8.1 Sep.: 2.8" P.A.: 245º Nat:f Spec.:A, B
AOC: 341 DSC: 244 D.D.S.:23h.35m.(UT); 20-June-1985

sigma2666

        NNOTE: Very rich is in a zone; there is a great difference of magnitude, are very together, is unfolded with 100x, the main one is white and secondary the bluish one.

 

C L U S T E R

NGC:6913

M:29

R.A.: 20h.24m.

Dec: 38º21'

Mag:7.1

Dim:10'x8' AOC: 342 NCAO: 98
D.D.S.: 23h.43m.(UT); 20-June-1985  

D O U B L E

Nom: Dem 22 R.A.: 20h.25m.

Dec: 40º14'

Mag: 8.1, 9.2 Sep.: 3.1" P.A.: 155º Nat:? Spec.: G, A
AOC: 343 DSC: 245 D.D.S.:23h.45m.(UT); 20-June-1985

m29

        NOTE: M29: Very richin stars is in a zone; it is a shining, small cluster stellar pretty and rich story thirty stars, the cluster is formed by fifty stars; is located to 1250 parsecs, has an age of only ten million years with a phantom corresponding to the youngest star of B0, has nebular, invisible condensation with the R-90 mm.

        Dem 22: One is one catalogued and identified double in the Sky Catalogue 2000.0; their components are very weak, it is located to 20' to the south of M29, and it is unfolded with the eyeglass of 50x.

 

C L U S T E R

IC:4996

M:--

R.A.: 20h.15m.

Dec: 37º24'

Mag: 7.2

Dim:6' AOC: 344 NCAO: 99
D.D.S.: 23h.55m.(UT); 20-June-1985  

ic4996

        NOTE:Very rich is in a zone; it is a shining cluster, something small, rich and pretty, one is to 1650 PC, he is very rich, it has cloudiness, it has a considered age of 10 million years, the phantom of the youngest star pertaining to the cluster is B0.

 

C L U S T E R

NGC:6883

M:--

R.A.: 20h.09m.

Dec: 35º42'

Mag: 7.8

Dim:25'x15' AOC: 345 NCAO: 100
D.D.S.:00h.15m.(UT); 21-June-1985  

ngc6883

        NOTE: Very rich is in a zone, is a shining, small, pretty cluster stellar and not very rich, parsecs is located to 1380, has an age of 15 million years and has nebular condensation.

 

C L U S T E R

NGC:6871

M:--

R.A.: 20h.04m.

Dec: 35º38'

Mag:5.6

Dim:37' AOC: 346 NCAO: 101
D.D.S.:00h.20m.(UT); 21-June-1985 (prism)  

D O U B L E

Nom:S 2639 R.A.: 20h.07m.

Dec: 35º20'

Mag: 7.6, 8.5 Sep.: 5.8" P.A.: 301º Nat:f Spec.:A, K
AOC: 347 DSC: 246 D.D.S.:00h.27m.(UT); 21-June-1985 (prism)

ngc6871

        NOTE: NGC 6871: Very richis in a zone, is great and rich a stellar cluster bonto,; parsecs is located to 1650, has an approximated age of only 10 million years; the phantom of the youngest star is Or6, nebular presence has been observed.

        S 2639: One is immersed in NGC 2671; there is a slight difference of magnitude, are together, although it is unfolded with 50x, the main one is white, however, the secondary one is orange.

 

D O U B L E

Nom: S 738 R.A.: 20h.11m.

Dec: 33º38'

Mag: 8.6, 8.7 Sep.: 41" P.A.: 108º Nat:? Spec.:A, A
AOC: 348 DSC: 247 D.D.S.:00h.31m.(UT); 21-June-1985 (prism)

D O U B L E

Nom: h 1485 R.A.: 20h.09m.

Dec: 33º25'

Mag: 8.3, 9.0 Sep.: 4.7" P.A.: 277º Nat:? Spec.:A, K
AOC: 349 DSC: 248 D.D.S.: 00h.35m.(UT); 21-June-1985 (prism)

s708

        NOTE: S 738: One is in a rich zone; there is a smallest difference of magnitude between the components, are algos separated, both I see white them, is unfolded with 50x.

        h 1485: One is another catalogued and found double in Sky Catalogue 2000.0; there is a remarkable difference of magnitude between the components, are something separated, the main one I see white it, however, secondary the orange, is to 20' to the northwest of S 708.

 

 

D O U B L E

Nom:OS 205 R.A.: 20h.21m.

Dec: 41º00'

Mag: 7.0, 8.9 Sep.: 45" P.A.: 317º Nat:? Spec.:A, M
AOC: 358 DSC: 253 D.D.S.:21h.53m.(UT); 23-June-1985

osigma205

       

    NOTE: Very richin stars is in a field, is a remarkable difference of magnitude, are separated, the secondary one has a peculiar color rozijo, is unfolded without difficulty with 50x.

 

C L U S T E R

NGC:6834

M:--

R.A.: 19h.50m.

Dec: 29º17'

Mag:10.3

Dim:6'x3' AOC: 359 NCAO: 106
D.D.S.: 22h.05m.(UT); 23-June-1985  

ngc6834

        NOTE: Very richis in a field; it is a stellar cluster not very shining, of small dimensions in sense E-W, is luminous, precious. PC is located to 2300, and has an age of 70 million years

 

D O U B L E

Nom:52 R.A.: 20h.44m.

Dec: 30º32'

Mag: 4.0, 9.2 Sep.: 6.0" P.A.: 69º Nat:ph Spec.:A, ?
AOC: 615 DSC: 430 D.D.S.:22h.05m.(UT); 01-July-1986

52

      

      NOTE: Very richis in a zone; there is a great difference of magnitude, are very united, the main one is white, however, secondary the profit not to identify it, is unfolded with 100x.

 

D O U B L E

Nom:Arg 93 R.A.: 20h.45m.

Dec: 32º41'

Mag: 8.9, 9.7 Sep.: 11" P.A.: 88º Nat:f Spec.:?, ?
AOC: 616 DSC: 431 D.D.S.: 22kh.17m.(UT); 1-July-1986

arg93

 

       NOTE: Very rich is in a zone; there is a slight difference of magnitude, is one weak double of brightness of the components thus has been to me impossible to identify the colors, the identification is something difficult by the wealth of the field, is unfolded with 50x.

 

D O U B L E

Nom:Es R.A.: 20h.41m.

Dec: 44º45'

Mag: 9.0, 9.5 Sep.: 41" P.A.: 297º Nat:f' Spec.:?, ?
AOC: 617 DSC: 432 D.D.S.: 22h.22m.(UT); 1-July-1986

es

        NOTE: One is in a very rich zone; there is a slight difference of magnitude, are little separated, I do not identify the colors of his components, it is difficult to identify it due to the brightness weakness, and to the rich field, it is unfolded without difficulty with the eyeglass of 50x.

 

D O U B L E

Nom:S 2538 R.A.: 19h.29m.

Dec: 36º36'

Mag: 8.6, 8.9, 9.0 Sep.(AB): 6.0"

Sep.(AC): 53"

P.A.(AB): 51º

P.A.(AC): 66º

Nat(AB):f

Nat(AC):f?

Spec.:K, A, K
AOC: 804 DSC: 599 D.D.S.:21h.35m.(UT); 18-June-1987

sigma2538

        NOTE: One is in a precious stellar field; there is a slight difference of magnitude between the three components, the main one and the tertiary one is orange, however, the secondary one is white, the separation is desproporcional, although it is unfolded without difficulty with 50x.

 

D O U B L E

Nom:OS 187 R.A.: 19h.34m.

Dec: 46º20'

Mag: 8.3, 9.0, 9.0 Sep.(AB): 64"

Sep.(AC): 129"

P.A.(AB): 287º

P.A.(AC): 255º

Nat(AB): op

Nat(AC): op

Spec.:?, ?, ?
AOC: 810 DSC: 605 D.D.S.:22h.20m.(UT); 18-June-1987

osigma187

     

        NOTE: One is in a rich field; there is a slight difference of magnitude between components AB and equality in BC, as much B is very separated as C of A; profit not to identify the colors due to the weakness of the components, is unfolded without difficulty with the eyeglass of 50x.

 

D O U B L E

Nom:OS 379 R.A.: 19h.36m.

Dec: 33º46'

Mag: 8.0, 9.4 Sep.: 25" P.A.: 86º Nat:f Spec.:A, B
AOC:811 DSC: 606 D.D.S.: 22h.29m.(UT); 18-June-1987

osigma379

        NOTE: One is in a very rich zone; there is a remarkable difference of magnitude, are slightly separated, is unfolded without difficulty with the eyeglass of 50x, the main one is white, however, the secondary one is bluish, is one pretty double.

 

D O U B L E

Nom: d R.A.: 19h.43m.

Dec: 45º00'

Mag: 2.9, 6.3 Sep.: 2.2" P.A.: 232º Nat:O Spec.:A, A
AOC: 812 DSC: 607 D.D.S.:22h.39m.(UT); 18-June-1987

delta

   

    NOTE: One is in a partially rich zone; there is a remarkable difference of magnitude, are very together, I need 200x to unfold it, is one very pretty but out of proportion double; both components are white.

 

 

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