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V I R G O

 

ori.gif (1448 bytes) Mythology and history

Mythology of Virgo

       Virgo, also well-known in Greek mythology like Astrea (in Greek Αστραια Astraia or Αστραιη Astraiê, "the starred one", or also Αστραπη Astrapê, "lightning"; in Latin Astraea) it was the virgin goddess that took rays of Zeus in its arms.

    Astrea was daughter Zeus and Temis, being because one titánide and personifying next to its mother to justice. According to other sources, she was daughter of Astreo and Eos.

     It was also the last inmortal that lived between the humans during the golden Era of Cronos, leaving the Earth last when this one envileció in the Era of the bronze. Zeus raised it the sky, locating it between stars like the Virgo constellation, and the balance of the justice that took in the hands turned the near constellation Libra.

       Frequently it is confused with Diké, also daughter of Zeus and Temis, who replaced it like goddess of justice.

       During the War of the Titanes Astrea it was an ally of Zeus. Like Niké (the Victory), one became one of his assistants: the carrier of its rays. It compensates it by his loyalty can have been the permission to conserve his virginity (is the only virgin between all the Titánides) and a place between stars as the Virgo constellation (then although it had been born as a goddess of stars, presumably was not in the beginning more than a simple star, like his brothers).

        One imagines Astrea like a winged goddess with a shining aureole, that carries a torch (all these are attributes of a goddess of stars) and the rays of Zeus.

 

Characteristics

           Virgo, comprises of one of the greatest constellations of the celestial with 1300º square, single vault almost superable by the constellation of Hydra with 1303º square, nailed in the celestial and visible equator in both hemispheres during six months from February to August. In addition it is the greater zodiacal constellation and therefore, the Sun remains in her more than forty days, in concrete 45 days, being the solar month of greater duration.

                Virgo has the particularitity to be closely together of the North Pole of our Milky Route or our galaxy, this implies that we have a window opened to the firmament and the contemplation of galaxies and globular accumulations. On the other hand rich star fields nor stellar accumulations are not observed. He is spectacular to be able to contemplate to fields of enormous galaxies with the telescope and very little stars.

                Virgo limits the north with the constellations of Bootes and Coma Berenice, the Leo east, the south with the constellations of Crater, Corvus and Hydra and to the west with Libra and Serpens Caput.

               The constellation of Virgo I located the 18 to it of March of 1982 when it had 14 years of age from the locality of Inca, Majorca.

 

Constellation of Virgo

 

Main stars

       Alpha, a; denominated Spica,  of magnitude 1.06 and blue color; Earth light is to 262 years, is a yellow giant 2180 times more luminous than our Sun is located in the center of the constellation.

      Beta, b; denominated Zavijah, of magnitude 3.60 and yellow. Earth light is to 35 years, is a giant 3,600 times more luminous than the Sun is located to the east of the constellation closely together of I read.

      Gamma, g; denominated Porrima, of magnitude 2.74 and white color; it is located in the center of the constellation and comprises of one of prettier double stars. The system is to 38 years Earth light being 9 times more shining than the Sun.

  Other objects

         M61; precious spiral galaxy Sb located in the center of the constellation of magnitude 9.6, 6,6'x6 ' of angular diameter.

          M49; elliptical very shining galaxy, E; of located magnitude 8.4 near the previous one of 8'x7 ' of angular diameter.

         M86; elliptical galaxy of magnitude 8.90 of 12'x9 ' located in the north of the constellation near Comma in the accumulation of Virgo of galaxies.

          M87; elliptical galaxy of magnitude 8.60 of 7'x7 ' of diameter arc, is in the same accumulation of Virgo of galaxies.

          M98; elliptical galaxy of magnitude 9.80 of 3,4'x3 ' of diameter arc, is in the same accumulation of Virgo of galaxies.

          M60; elliptical galaxy of magnitude 8.8 of 3'x2 ' of arc located in the accumulation of Virgo of galaxies.

          M49; elliptical galaxy of magnitude 8.4 of 8'x7 ' of arc located in the accumulation of Virgo of galaxies.

         M104; precious denominated galaxy the one of the hat by its almost perfect form to a hat whose Vista from the Earth is almost of profile. One is closely together located to the south of the constellation of Corvus. It has a magnitude of 8,0, has an angular diameter of 8,9'x4'.

 

ori.gif (1448 bytes) Observations by telescope

D OU B L E

Nom: g R.A.: 12h.39m.

Dec: -01º 11'

Mag: 3,5, 3,6 Sep.: 3,8" P.A.: 298º Nat: o Spec.: A, A
AOC: --- DSC: --- D.D.S.: ---

sigma1904

 

          NOTE: It is one very pretty double and very easy to identify, it is in form of eight now since the distance is reduced, is unfolded with the second eyeglass, his colors are distinguished very well.

 

 

D OU B L E

Nom: S1575 R.A.: 11h.49m.

Dec: 09º06'

Mag: 7,9 y 8,5 Sep.: 31" P.A.: 210º Nat: f Spec.: G, F
AOC: --- DSC: --- D.D.S.: ---

sigma1904

 

        NOTE: She is one double quite simple one, she is quite separated and magnitudes very parecidasa, and one is in a very rich zone.

 

 

D OU B L E

Nom: S1591 R.A.: 11h.59m.

Dec: -00º07'

Mag: 8,4 y 8,5 Sep.: 50" P.A.: 352º Nat: ? Spec.: K, A
AOC: --- DSC: --- D.D.S.: ---

D OU B L E

Nom: OS166 R.A.: 11h.59m.

Dec: 00º22'

Mag: 8,3 y 8,8 Sep.: 74" P.A.: 181º Nat: op Spec.: -, -
AOC: --- DSC: --- D.D.S.: ---

sigma1904

 

        NOTE: They are in a very poor zone, the first very weak one, near this one is the other double, both are possible to be seen in the same field.

 

D OU B L E

Nom: S1904 R.A.: 15h.02m.

Dec: 05º41'

Mag: 7.0,7.0 Sep.: 10" P.A.: 347º Nat: f Spec.: A,A
AOC: 391 DSC: 278 D.D.S.: 22h.47m.(UT); 17-Jul-1985

sigma1904

 

        NOTE: One is in a very poor zone. Both components are of the same magnitude, are something together, is unfolded with the eyeglass of 50x, both components I see white them.

 

D OU B L E

Nom: S1619 R.A.: 12h.13m.

Dec: -06º58'

Mag: 8.0,8.4 Sep.: 7.0" P.A.: 246º Nat: ? Spec.: B, B
AOC: 521 DSC: 371 D.D.S.: 22h.26m.(UT); 15-Mar.-1986

sigma1619

 

        NOTE: One is in a very poor zone. There is a small difference of brightness between the components formed by two stars of low brightness, of blue components is unfolded with the eyeglass of 50x.

 

D OU B L E

Nom: S1627 R.A.: 12h.16m.

Dec: -03º40'

Mag: 6.5,7.0 Sep.: 20" P.A.: 198º Nat: f Spec.: B, A
AOC: 522 DSC: 372 D.D.S.: 22h.31m.(UT); 15-Mar.-1986

sigma1627

 

       NOTE: One is in a very poor zone. There is a smallest difference of brightness between the components, is unfolded without difficulty with the eyeglass of 50x, the main one I see it blue, and the secondary white.

 

D OU B L E

Nom: Sh 162 R.A.: 13h.22m.

Dec: -11º16'

Mag: 6.9,8.0 Sep.: 95" P.A.: 47º Nat: op Spec.: B, A
AOC: 529 DSC: 377 D.D.S.: 00h.26m.(UT); 16-Mar.-1986

sh162

 

        NOTE: One is in a poor zone. A remarkable difference of brightness between two very separated components exists forming by nature an optical pair. The main one I see it blue and the secondary white, is unfolded with the eyeglass of 50x.

 

D OU B L E

Nom: 54 R.A.: 13h.11m.

Dec: -18º34'

Mag: 6.7,7.5 Sep.: 5.3" P.A.: 34º Nat: f Spec.: A, A
AOC: 530 DSC: 378 D.D.S.: 00h.30m.(UT); 16-Mar.-1986

54

 

       NOTE: One is in a very poor zone. There is a slight difference of brightness between the components, is one double something tight, unfolding itself with the eyeglass of 50x, both components I see white them.

 

G A L A X Y

NGC:4406

M: 86

R.A.: 12h.24m.

Dec: 13º13'

Mag: 9.7 Dim: 2'x1.5' AOC: 560 CNAO: 162
D.D.S.: 22h.20m.(UT); 1-April-1986  

G A L A X Y

NGC:4374

M: 84

R.A.: 12h.23m.

Dec: 13º10'

Mag: 9.3 Dim: 1.5’ AOC: 561 CNAO: 163
D.D.S.: 22h.26m.(UT); 1-April-1986  

G A L A X Y

NGC:4438

M: --

R.A.: 12h.25m.

Dec: 13117'

Mag: 10.8 Dim: 8'x3’ AOC: 562 CNAO: 164
D.D.S.: 22h.28m.(UT); 1-April-1986  

G A L A X Y

NGC:4435

M: --

R.A.: 12h.25m.

Dec: 13º20'

Mag: 11.4 Dim: 1.5’ AOC: 563 CNAO: 165
D.D.S.: 22h.32m.(UT); 1-April-1986 (Prisma)  

M86, M 84 & ...

 

        NOTE: M86: One is in a poor zone of stars. It is a galaxy easy to identify due to the brightness based in 9.7 and to the few stars that they are scarce. Their dimensions are of 2', which is not very great. One is a galaxy where two zones of brightness are distinguished, the one weakest one than corresponds to periféria and one more a more shining zone corresponding to the nucleus. It is of type and3.   

        M84: One is to 10' of M86. He is more circular and weaker of brightness, therefore, of smaller dimensions, an only zone of brightness corresponding to the nucleus is distinguished, is a galaxy of type and1.

        NGC4438: One is to 20' of M86. Of easy identification an only layer of brightness weaker is observed than the previous ones. It is of the Sa type.

        NGC4435: One is to 5' to the NGC4438 north. Of very small dimensions and in addition to difficult observation due to the weak thing of its brightness. An only zone of brightness is distinguished. Also it is of the spiral type.

 

G A L A X Y

NGC: 4594

M: 104

R.A.: 12h.37m.

Dec: -11º21'

Mag: 8.7 Dim: 6'x2.5' AOC: 564 CNAO: 166
D.D.S.: 22h.36m.(UT); 1-April-1986  

m104

 

       NOTE: One is the famous galaxy of the hat. One is in a very poor zone in the limits of the constellation of Corvus. two zones of the brightness, most shining corresponding to the galactic equator are distinguished since we observed it of song, and the other less shining zone corresponding to I haul and parts next to the galactic equator.

 

G A L A X Y

NGC:4649

M: 60

R.A.: 12h.41m.

Dec: 11º49'

Mag: 8.9 Dim: 2’ AOC: 566 CNAO: 167
D.D.S.: 22h.44m.(UT); 1-April-1986  

G A L A X Y

NGC: 4621

M: 59

R.A.: 12h.39m.

Dec: 11155'

Mag: 9.6 Dim: 7’x1' AOC: 567 CNAO: 168
D.D.S.: 22h.45m.(UT); 1-April-1986  

G A L A X Y

NGC:4647

M: --

R.A.: 12h.41m.

Dec: 11º50'

Mag: 11.7 Dim: 1’ AOC: 568 CNAO: 169
D.D.S.: 22h.49m.(UT); 1-April-1986  

G A L A X Y

NGC:4637

M: --

R.A.: 12h.41m.

Dec: 11º43'

Mag: 11.4 Dim: 3' x 1' AOC: 569 CNAO: 170
D.D.S.: 22h.53m.(UT); 1-April-1986  

G A L A X Y

NGC: 4579

M: 58

R.A.: 12h.35m.

Dec: 12º05'

Mag: 9.8 Dim: 4' x 3' AOC: 570 CNAO: 171
D.D.S.: 22h.58m.(UT); 1-April-1986 (Prisma)  

M 60, M 59 & ...

 

            NOTE: M60: It is the galaxy most shining of the field. And first in identifying it, two zones of brightness are distinguished corresponding to the nucleus, and soon, one second layer corresponding to the periphery, is in a quite poor zone in stars, occurring the case that there are more galaxies than stars in the field. The one of type and1.

            M59: One is to single 20' of the M60 galaxy. Its size more is reduced but not its dimension. It is observed partially made oval and with a zone of brightness, it is of type and3.

            NGC4647: It is a very weak galaxy, is to only 2' to the west of M60. It is observed solely like a small blurred point.

            NGC4537-8: Formed by two galaxies, a single one with the R-90mm. is observed is distinguished solely as a blurred star.

            M58: Easy to identify, its dimension goes up to around 4', is a galaxy little defined in brightness, do not disntinguen zones of brightness práxticamente being to circulate. It is of the Sb type.

 

G A L A X Y

NGC:4569

M: 90

R.A.: 12h.34m.

Dec: 13º26'

Mag: 10.0 Dim: 7’ x 2' AOC: 572 CNAO: 173
D.D.S.: 23h.02m.(UT); 1-April-1986 (Prisma)  

M 90

 

       NOTE: One is in a very poor zone in stars. It is a galaxy of low brightness, extended being observed an only relative zone of brightness. It is of the Sc type.

 

G A L A X Y

NGC: 4552

M: 89

R.A.: 12h33.m.

Dec: 12º50'

Mag: 9.5 Dim: 1.3’ AOC: 573 CNAO: 174
D.D.S.: 23h.15m.(UT); 1-April-1986 (Prisma)  

M 89

 

        NOTE: One is in a very poor field. One is a galaxy shining but easy to identify due to the star shortage in the field. One distinguishes two zones of brightness corresponding to the nucleus and periféria. It is a galaxy of the type S0.

 

D OU B L E

Nom: q R.A.: 13h.07m.

Dec: -05º14'

Mag: 4.4,8.9 Sep.: 7.2" P.A.: 334º Nat: f Spec.: K, K
AOC: 575 DSC: 400 D.D.S.: 20h.25m.(UT); 2-May.-1986

Ceta

 

        NOTE: One is in a poor zone. There is a remarkable difference of brightness between the components, are slightly separated, unfolding itself with the eyeglass of 50x, both components I see them of orange color..

D OU B L E

Nom: S1740 R.A.: 13h.21m.

Dec: 02º59'

Mag: 7.4,7.7 Sep.: 27" P.A.: 75º Nat: ? Spec.: K, K
AOC: 576 DSC: 401 D.D.S.: 20h.31m.(UT); 2-May.-1986

sigma1740

 

           NOTE: One is in a poor zone. There is a slight difference of brightness between the components, are something separated, is unfolded without difficulty with the eyeglass of 50x, both components I see them of orange color.

 

D OU B L E

Nom: S1873 R.A.: 14h.42m.

Dec: 07º55'

Mag: 8.2, 8.6 Sep.: 6.7" P.A.: 93º Nat: f Spec.: A, B
AOC: 580 DSC: 405 D.D.S.: 22h.14m.(UT); 2-May.-1986

sigma1873

 

        NOTE: One is in a somewhat rich zone. There is a slight difference of brightness between the components, are something tight although it is unfolded with the eyeglass of 50x, the main one I see secondary white it and the bluish one.

 

D OU B L E

Nom:S1677 R.A.: 12h.43m.

Dec: -03º37'

Mag: 6.8, 8.1 Sep.: 16" P.A.: 349º Nat: f Spec.: B, K
AOC: 780 DSC: 578 D.D.S.: 20h.57m.(UT); 18-April-1987

sigma1677

 

        NOTE: One is in a partially rich zone. There is a remarkable difference of brightness between the components, are slightly separated, the main one I see it blue and secondary the orange, is unfolded without difficulty with the eyeglass of 50x.

 

D OU B L E

Nom:S 1681 R.A.: 12h.47m.

Dec: 04º06'

Mag: 8.9, 9.0 Sep.: 9.0" P.A.: 195º Nat: f Spec.: G, G
AOC: 781 DSC: 579 D.D.S.: 21h.13m.(UT); 18-April-1987

sigma1681

 

        NOTE: One is in a poor zone. Both components I see them of the same brightness, is one double of weak components of brightness being one very pretty double. They are neither white nor orange, therefore, they must be yellow. It is unfolded with 50x.

 

D OU B L E

Nom: S1682 R.A.: 12h.49m.

Dec: -10º05'

Mag: 6.8,9.3 Sep.: 30" P.A.: 300º Nat: op Spec.: M, ?
AOC: 782 DSC: 580 D.D.S.: 21h.30m.(UT); 18-April-1987

sigma1682

 

       NOTE: One is in an excessively poor star field. A remarkable difference of brightness between the components exists, form an optical pair, the main one I see it red, however, profit not to identify the color of the secondary one, is unfolded without difficulty with the eyeglass of 50x.

 

D OU B L E

Nom: S1690 R.A.: 12h.56m.

Dec: -04º52'

Mag: 7.0, 8.5 Sep.: 5.7" P.A.: 148º Nat: ? Spec.: A, ?
AOC: 888 DSC: 670 D.D.S.: 23h.28m.(UT); 26-Mar.-1988

sigma1690

 

        NOTE: One is in a zone, very very poor. There is a remarkable difference of brightness between the components, are something tight unfolding itself with the eyeglass of 50x. The main one I see white it, however, profit not to identify the color of the secondary one.

 

D OU B L E

Nom: S1719 R.A.: 13h.07m.

Dec: 00º35'

Mag: 7.6,8.1 Sep.: 7.2" P.A.: Nat: ? Spec.: F, ?
AOC: 889 DSC: 671 D.D.S.: 23h.38m.(UT); 26-Mar.-1988

sigma1719

 

        NOTE: One is in a zone very, very poor, 1. There is a small difference of brightness between the components, are oriented in sense the north-south. They are slightly tight, unfolding itself, without difficulty with the eyeglass of 50x.

 

D OU B L E

Nom: S1764 R.A.: 13h.38m.

Dec: 02º23'

Mag: 7.0,8.7 Sep.: 15.8" P.A.: 31º Nat: ? Spec.: K, M
AOC: 890 DSC: 672 D.D.S.: 23h.42m.(UT); 26-Mar.-1988

sigma1764

 

        NOTE: One is in a zone, very very poor. There is a remarkable difference of brightness between the components formed by main of orange color and the secondary one that I see it of red color. It is unfolded without difficulty with the eyeglass of 50x.

 

D OU B L E

Nom: b460 R.A.: 13h.25m.

Dec: -15º38'

Mag: 7.6, 9.9 Sep.: 2.2" P.A.: 35º Nat: ? Spec.: A, ?
AOC: 919 DSC: 701 D.D.S.: 22h.02m.(UT); 1-April-1989

beta460

 

          NOTE: One is in a very poor zone. There is a remarkable difference of brightness between the components, are very tight, unfolding itself with the eyeglass of 50x, the main one I see white it, however, profit not to identify the color of the secondary one.

 

D OU B L E

Nom: S1738 R.A.: 13h.23m.

Dec: -14º55'

Mag: 8.5,8.6 Sep.: 3.9" P.A.: 281º Nat: ? Spec.: F, ?
AOC: 920 DSC: 702 D.D.S.: 22h.12m.(UT); 1-April-1989

sigma1738

 

       NOTE: One is in a very poor zone. There is a smallest difference of brightness between the components, is unfolded, in addition, with the eyeglass of 100x, since is something tight. The main one I create to see it yellow, however, with the secondary one I do not identify its color.

 

D OU B L E

Nom: S650 R.A.: 13h.35m.

Dec: -13º26'

Mag: 8.5,8.8 Sep.: 50.0" P.A.: 136º Nat: ? Spec.: G, ?
AOC: 921 DSC: 703 D.D.S.: 22h.59m.(UT); 1-April-1989

s650

 

        NOTE: One is in a very poor zone. A small difference of brightness between the components exists, are something separated, is unfolded with the eyeglass of 50x, the main one I see yellow it, however, profit not to identify the color of the secondary one.

 

D OU B L E

Nom: h 228 R.A.: 13h.36m.

Dec: 10º12'

Mag: 6.7,8.7 Sep.: 70.2" P.A.: 16º Nat: ? Spec.: K, ?
AOC: 922 DSC: 704 D.D.S.: 23h.05m.(UT); 1-April-1989

h228

 

        NOTE: One is in an extremely poor zone. There is a remarkable difference of brightness between the components, unfolds without pain nor glory with the eyeglass of 50x, the main one I see orange and the secondary one it that knows.

 

D OU B L E

Nom: S1777 R.A.: 13h.43m.

Dec: 03º32'

Mag: 5.5, 7.9 Sep.: 2.9" P.A.: 229º Nat: ? Spec.: K, ?
AOC: 924 DSC: 706 D.D.S.: 23h.23m.(UT); 1-April-1989

sigma1777

 

        NOTE: One is in a very poor zone. There is a slight difference of brightness between the components formed by two tight stars and of orange and uncertain color. It is unfolded without difficulty with the eyeglass of 50x.

 

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