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C A S S I O P E A

 

ori.gif (1448 bytes) Mythology and history

Mitología de Cassiopea

    According to the most well-known legend, Cassiopea, also call Casiepea or Casíope, was the wife of Cefeo or Cepheus, king of the Ethiopians. Of this marriage was born Andrómeda, who was lead by his parents to the sacrifice to appease to a marine monster sent by Poseidón with the intention to take revenge the offense that Casiopea had inferred the goddesses of the sea, when affirming that she was more beautiful than they

 

ori.gif (1448 bytes) Characteristics

       The constellation of Cassiopea is in the North hemisphere,  crosses the parallel 60º of North latitude, therefore, he is visible during almost all the year in the North hemisphere with his characteristic form of W or E based on the hour in which we observe it. However, for the inhabitants of the South hemisphere one is a constellation difficult to locate solely and visible during the primaverales months. Its location is easy since it is in the diametrically opposite zone to the Great Bear with respect to the Polestar. Cassiopea extends from the parallel North 78º limiting with Cepheus to North 47º whose irregular border has it with the constellation of Andromeda. It limits the east with Lacerta and the west with Camelopardalis. Another characteristic of the constellation of Cassiopea is that the galactic equator of the Milky Route crosses the constellation by its equatorial zone, therefore, we observed double and variable multitude of clusters and stars.

 

Constelación de Cassipea

 

Main stars

       Alpha, a; denominated Shedar, of magnitude 2.50 but that in the past signaled of a great variability. It is of orange color. Form leaves from a double star. Earth light is to 150 years.

       Beta, b; denominated Kaff or Caph, one is in the limit this of the constellation, is a golden star 200 times more luminous than our Sun Is variable of the type d Scuti. One is a binary star of only 27 days of orbital period therefore, completely invisible with any telescope. Its magnitude is of 2,28. Light is to 54 years. 

       Gamma, g; of magnitude 2.18 one is in the central zone of the constellation. It is a bluish star to 613 years light. Its luminosity is superior to 300 times the lot. And it has been observed which it is a penetrating radiation source of x-rays emission, symptom of the processes of stellar pacification.

       Delta, d; denominated Ruchbah, of white color and magnitude 2.66, it is member of the stellar group of the Hyades located in the constellation of Taurus.

       Épsilon, e; of magnitude 3.35 being weakest of the stellar group. Denominated Becvar, of blue and very young color, the associative type OB. Form leaves from the group of the Pleyads

Other objects

      M52, precious stellar accumulation located to the east in the limit with the constellation of Cepheus. Of magnitude 6,90. It has an angular diameter of 13' and an age of 35 million years. Light of us in the galactic equator practically is to 4,800 years.        

 

 

ori.gif (1448 bytes) Observations by telescope

 

C L U S T E R

NGC:7654

M:52

R.A.: 23h.22m.

Dec: 61º19'

Mag:7.2

Dim:12' AOC: 26 N.C.A.O.: 7
S.D.D.: 00-Oct.-1983  

M 52

    NOTE: It is an accumulation of prettiest than I have seen. It has fan form, that peculiarly in the vertex is a red shining star; perhaps intrusa is one but what is certain it is that in several cluster it has been in the same situation, easy to locate it is observed granulated with the eyeglass of 50x, and all its splendor with the one of 200x.

 

C L U S T E R

NGC:457

M:--

R.A.: 01h.16m.

Dec: 58º04'

Mag:7.4

Dim:10' AOC: 190 N.C.A.O.: 93
S.D.D.: 19h.50m.(UT);20-Sep.-1984  

ngc457

    NOTE: It is a pretty stellar accumulation; brilliant, has cross form, is also observed, a red star in the vertex of the accumulation, indicated in the drawing, has cross form.

 

D O U B L E

Nom:a R.A.: 00h.38m.

Dec: 56º16'

Mag: 2.4,9.1 Sep.: 62" P.A.: 281º Nat:op Spec.:K,B
AOC: 630 DSC: 443 S.D.D.:21h.05m.(UT);10-Aug.-1986

alfa

    NOTE: One is in a very rich zone; there is an enormous difference of magnitude, are very separated, his phantoms are different, K and B; easy to locate it is unfolded without difficulty with the eyeglass of 50x.

 

D O U B L E

Nom:h R.A.: 00h.46m.

Dec: 57º33'

Mag: 3.6,7.5 Sep.: 12" P.A.: 305º Nat:O Spec.:A,K
AOC: 631 DSC: 444 S.D.D.:21h.11m.(UT);10-Aug.-1986

eta

    NOTE: One is in a zone, very very rich in stars, is a remarkable difference of magnitude, are slightly separated, his phantoms are similarities, is one double very pretty, easy to locate unfolding itself with the eyeglass of 50x.

 

D O U B L E

Nom:y R.A.: 01h.24m.

Dec: 67º52'

Mag: 4.5,9.3 Sep.: 26" P.A.: 112º Nat:op Spec.:A,B
AOC: 632 DSC: 445 S.D.D.: 21h.23m.(UT);10-Aug.-1986

fi

    NOTE: One is in a rich zone; there is an enormous difference of magnitude, are slightly separated, is unfolded easily without difficulty with the eyeglass of 50x being located.

 

D O U B L E

Nom:OS 33 R.A.: 01h.34m.

Dec: 58º23'

Mag: 7.4,8.6 Sep.: 25" P.A.: 77º Nat:op Spec.:A,B
AOC: 633 DSC: 446 S.D.D.:21h.32m.(UT);10.Aug.-1986

osigma33

    NOTE: One is in a rich zone; there is a slight difference of magnitude, are slightly separated, his phantoms are similarities, easy to locate is unfolded with the eyeglass of 50x.

 

D O U B L E

Nom: h 1088 R.A.: 01h.39m.

Dec: 58º22'

Mag: 6.9,9.0 Sep.: 20" P.A.: 168º Nat:? Spec.:A,B
AOC: 634 DSC: 447 S.D.D.:21h.38m.(UT);10-Aug.-1986

D O U B L E

Nom:No catalog. R.A.: 01h.38m.

Dec: 58º00'

Mag: 9.3,9.6 Sep.: 25" P.A.: Nat:? Spec.:A,A
AOC:635 DSC: 448 S.D.D.: 21h.39m.(UT);10-Aug.-1986

h1088

    NOTE: h1088: One is in a rich zone; there is a remarkable difference of magnitude, are not very separated, the colors are very similarities, easy to locate is unfolded with the eyeglass of 50x.

    CED 448: One is to 20' of h 1088, is one catalogued double but not yet I have identified it in no free-catalogue; a small difference of magnitude between the components exists, are not very separated, seems to me that both components have the same color, white; it is unfolded without difficulty with the eyeglass of 50x.

 

D O U B L E

Nom:S 3053 R.A.: 00h.00m.

Dec: 63º49'

Mag: 6.0,7.3 Sep.: 15" P.A.: 70º Nat: ph Spec.: F,B
AOC: 825 DSC: 616 S.D.D.:23h.14m.(UT);20-July-1987

sigma3053

    NOTE: One is in a very rich zone, 8; there is a small difference of magnitude between his components, are slightly separated, profit not to identify the colors due to the low magnitude, is unfolded with the eyeglass of 50x.

 

D O U B L E

Nom:h 3241 R.A.: 00h.05m.

Dec: 57º05'

Mag: 9.2,9.6 Sep.: 15" P.A.: Nat:? Spec.: ?,?
AOC:826 DSC: 617 S.D.D.: 23h.26m.(UT);20-July-1987

h3241

    NOTE: One is in a very rich zone, 8; there is a small difference of magnitude between his components, profit not to identify the colors, is unfolded without difficulty with the eyeglass of 50x.

 

D O U B L E

Nom:b484 AC R.A.: 00h.07m.

Dec: 51º45'

Mag: 7.8,9.0 Sep.: 83" P.A.: 50º Nat:op Spec.:?,?
AOC:827 DSC: 618 S.D.D.: 23h.29m.(UT); 20-July-1987

Beta 484

    NOTE: One is in a very rich zone, 8; there is a small difference of magnitude between his components, profit not to identify the colors, is unfolded without difficulty with the eyeglass of 50x.

 

D O U B L E

Nom:Es R.A.: 00h.08m.

Dec: 49º36'

Mag: 8.8,8.8 Sep.: 77" P.A.: 290º Nat:op Spec.:?,?
AOC: 828 DSC:619 S.D.D.: 23h.42m.(UT);20-July-1987

Es

    NOTE: One is in a partially rich zone, to so single to 20' of Is Andromedae; both components are of the same magnitude, is unfolded without difficulty with the eyeglass of 50x.

 

C L U S T E R

NGC:129

M:--

R.A.: 00h.26m.

Dec: 59º57'

Mag:8.5

Dim:15' AOC:830 N.C.A.O.:211
S.D.D.: 23h.50m.(UT); 20-July-1987  

NGC 129

    NOTE: One is in a partially rich zone, is formed by fourteen stars of 9º and 9.5º magnitude, with an angle of position of 0º, formed by two parallel lines, is a pretty and delicate stellar accumulation.

 

C L U S T E R

NGC:146

M:--

R.A.: 00h.30m.

Dec: 63º00'

Mag:9.8

Dim:20'x8' AOC: 831 N.C.A.O.: 212
S.D.D.: 00h.00m.(UT); 21-July-1987  

C L U S T E R

NGC:133

M:--

R.A.: 00h.29m.

Dec: 63º02'

Mag:9.5

Dim:7' AOC:832 N.C.A.O.: 213
S.D.D.: 00h.00m.(UT);21-July-1987  

NGC 146, NGC 133

    NOTE: NGC 146: It's a pretty cluster, its forms more than 15 stars oriented to east-west, all of them the same magnitude.

 

D O U B L E

Nom:Arg 3 R.A.: 00h.54m.

Dec: 60º04'

Mag: 9.0, 9.6 Sep.: 19" P.A.: 200º Nat:? Spec.:?,?
AOC:833 DSC:621 S.D.D.: 00h.19m.(UT);21-July-1987

arg3

    NOTE: It's located at rich star zone, 6; there're a little diference of magnitude, I don't idenitfy its colours, it's a beatifull double star easy to find and see both ones with 50x eyepieces.

 

C L U S T E R

NGC:581

M: 103

R.A.: 01h.30m.

Dec: 60º27'

Mag:10.0

Dim:7'x2' AOC: 834 N.C.A.O.: 214
S.D.D.: 00h.23m.(UT); 21-July-1987  

NGC 581

    NOTE: It's located at rich star zone, it's a cluster with its forms is V letter, whose main vertix is formed by brillant stars like it's seen at up one. There're a little more than ten stars with 10, 11 magnitude.

 

D O U B L E

Nom:S 30 R.A.: 00h.42m.

Dec: 49º43'

Mag: 6.8,8.7 Sep.: 14" P.A.: 310º Nat:op Spec.:B,A
AOC: 836 DSC: 623 S.D.D.: 23h.39m.(UT);22-July-1987

sigma30

    NOTE: One is in a partially rich zone, 6; there is a slight difference of magnitude, are slightly separated, the main one is bluish, however, the secondary one has cost to me to obtain the color enough, seeming to me in some occasions orange, in otroas, white and until even bluish. It is one pretty double and delicate, it is unfolded without difficulty with the eyeglass of 50x.

 

D O U B L E

Nom:OS 28 R.A.: 02h.35m.

Dec: 62º22'

Mag: 6.8,7.5 Sep.: 66" P.A.: 148º Nat:op Spec.:A,B
AOC:858 DSC: 642 S.D.D.: 23h.44m.(UT);20-Aug.-1987

osigma28

    NOTE: One is in a partially rich zone, is a slight difference of magnitude, are very separated, the pair is unfolded with the eyeglass of 50x, the main one is white, however, the secondary one is bluish, blue a smooth one.

 

ori.gif (1448 bytes) Other constellations

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