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C A N E S   V E N A T I C I

 

ori.gif (1448 bytes) Mythology and history

Mythology of Canes Venatici

         Canes Venatici, for the Arabs   saw a herd of wolves that made the rounds in the environs of the Great Bear, but was Hevelius, towards 1660 that classified to the zone of the sky of Dogs like a horror vacui when lacking important and shining objects. It is possible to emphasize that the star most shining of Dogs denominates Heart of Carlos King and Martyr, attributed to Sir Charles to it Scarborough in memory of king Carlos of England, to whom Cromwell killed, and also like exaltacion of his son Carlos II who had taken revenge to him. A little later, in 1725 Edmund Halley, animated by their monarchic devotion, to celebrate the liberation of Carlos II proposed nevertheless that a constellation centered in the star Cor Carolis or heart of Carlos was constituted solely, or luckyly it was not successful but the name of the star stayed to the present time.   Finely the asterimos of Halley finished by being incorporated to the Lebreles de Hevelius where, in compiled delestes letters of Bode at the end of century XVIII, the real heart is relegated to adorn the necklace of of the dogs

 

ori.gif (1448 bytes) Characteristics

    Venatici dogs as it defined Hevelius very well, Horror vacui , is a zone of 500º included in a zone of the very poor star sky due clearly to that it is to 80º of North latitude of the equator of our galaxy and comprises of a precious opened window to observe great amount of galaxies. One is located in the North hemisphere between the observable parallels 30º to 50º during the months of March to October in the North hemisphere and at the end of the autumn in the south. It limits the north and the east with the Great Bear, the south with Verenice Comma and the west with Bootes.

    In order to identify Dogs we can be fixed to the Great Bear and be aimed at the south of the tail of the Bear, in that very poor zone in stars is there where the constellation of Venatici Dogs is located.

    I identified the 22 of January of 1982 at the age of 13 years

 

Constellation of Canes Venatici

Main stars

           Alpha or to , denominated Cor Caroli or the Heart of Carlos, in honor of king Carlos II of Great Britain, magnitude 2.89 and white color. One is one of double the prettiest ones of the discovered firmament in 1692. Visible with medium telescopes; two white stars are observed being the secondary one of magnitude 5,50. Light of us is to 110 years. The binary system   is 66 times more luminous than our Sun. Its orbital period is not known to date. Form leaves from the Hyades, stellar accumulation in Taurus where the binary system formed.

              Beta or b , denominated Chara , of magnitude 4.30 and yellow color. Light is to 27 years and its luminosity is identical to the lot.

 

Other objects

            M 3, precious globular accumulation of magnitude 6.40 of 6' of amplitude arc. Located to the south of the constellation limiting with Bootes. Earth light and next to the galactic North Pole is to 34,000 years.

M 51, precious spiral galaxy greater than ours to 6,50 million years light of us and located near the Ursa Major, in the North sector of the constellation and to 70º of galactic latitude; she was one of the first observed spirals byally telescope (W. Parson, 1860). It has díametro of 9' of arc, corresponding to 100 thousand years amplitude light and whose photographic magnitude is of 8,80

          M 63, spiral galaxy located in the center of the constellation of magnitude 9.70 located to 77º of North latidud galactic. Light is to 40 million years being its dimensions of 100 thousand years light.   

 

ori.gif (1448 bytes) Observations by telescope

D O U B L E

Nom: a R.A.: 12h.54m.

Dec: 38º36'

Mag: 3.0,6.0 Sep.: 19" P.A.: 228º Nat:f Spec.:A,G
AOC:618 DSC: 433 D. of D.S.: 22h.23m.(UT);4-July-1986

D O U B L E

Nom: Not catal. R.A.: 12h.56m.

Dec: 38º35'

Mag: 9.0,10.0 Sep.: 25" P.A.: 40º Nat: ? Spec.:B, ?
AOC: 619 DSC: 435 D. of D.S.:22h.25m.(TU);4-July-1986

alfa

NOTE: a : One is in a poor zone; there is a slight difference of magnitude, are little separated, is one double very pretty, easy to locate is unfolded with 50x.

DSC 435: One is one double catalogued but I have not found it in the Sky Catalogue 2000,0, is to 30' to the east of a Venaticorum Dogs, one is about one weak, brightness but very pretty double, exists a slight difference of magnitude between the components, easy to locate, is unfolded, also, with 50x.

 

D O U B L E

Nom:OS 254 R.A.: 12h.54m.

Dec: 45º52'

Mag: 8.5,9.2 Sep.: 13" P.A.: 353º Nat:? Spec.:?,?
AOC:620 DSC: 436 D. of D.S.: 22h.33m.(UT); 4-July-1986

osigma254

NOTE: One is in a zone, very very poor; there is a small difference of magnitude, are together, I do not identify the colors due to his weakness, is unfolded without difficulty with the eyeglass of 50x.

 

D O U B L E

Nom:S 1723 R.A.: 13h.06m.

Dec: 39º01'

Mag: 7.5,9.0 Sep.: 6.4" P.A.: Nat:f Spec.:?,?
AOC: 621 DSC: 437 D. of D.S.: 22h.42m.(UT);4-July-1986

D O U B L E

Nom:S 24 App R.A.: 13h.08m.

Dec: 38º46'

Mag: 6.0,6.2 Sep.: 83" P.A.: 297º Nat:op Spec.:?,?
AOC: 622 DSC: 438 D. of D.S.: 22h.45m.(UT);4-July-1986

sigma1723

NOTE: S 1723: One is in a poor zone; there is a great difference of magnitude, are together, easy to locate is unfolded with the eyeglass of 50x.

S 24 App: A slight difference of magnitude exists, are very separated, almost 1'30 ", identifying itself immediately, is enough and exceeds with 50x.

D O U B L E

Nom: S 654 R.A.: 13h.45m.

Dec: 38º48'

Mag: 5.6, 8.8 Sep.: 71" P.A.: 328º Nat:op Spec.: ?,?
AOC: 623 DSC: 439 D. of D.S.:23h.06m.(UT); 4-July-1986

s654

NOTE: One is in a very poor zone; there is a remarkable difference of magnitude, are very separated, profit not to identify the colors, is unfolded without difficulty with the eyeglass of 50x.

 

 

G L O B U L A R   C L U S T E R

NGC:5272

M:3

R.A.: 13h.40m.

Dec: 28º38'

Mag: 6.1

Dim:10' AOC: 624 C.N.A.O.: 186
D. of D.S.: 23h.08m.(UT); 4-July-1986  

m3

   NOTE: One is the most famous M3; it is a magnificent globular accumulation, is in a zone of few stars, is very shining, easy to locate, great, nothing less than 10', I distinguish three different zones of brightness, is of the spectral type F 7 , that is to say, it is in the average zone of composition in his stars of heavy elements, is to 9,900 parsecs, his absolute magnitude is of -8.65, have an average concentration towards the center with a value of 6 of the scale of Shapley that goes from the 1 to the 12; and it has the index of metalidad (Fe/H) of -1,66 in logarithmic base 10, that comes to be the abundance of Faith in relation to the lot.

 

G A L A X Y

NGC:5194

M:51

R.A.: 13h.28m.

Dec: 47º27'

Mag: 8.1

Dim:16'x12' AOC: 625 C.N.A.O.: 187
D. of D.S.: 23h.27m.(UT); 4-July-1986  

G A L A X Y

NGC:5195

M:--

R.A.: 13h.38m.

Dec: 47º31'

Mag:8.4

Dim:2' AOC: 626 C.N.A.O.: 188
D. of D.S.: 23h.29m.(UT); 4-July-1986  

m51

   NOTE: M51: It is the famous galaxy eddy, spectacular, is a weak, great galaxy and one distinguishes two tonalities corresponding to the nucleus and to the arms, it is of the Sc type.

    NGC 5195: It is the galaxy satellite of the eddy, is difficult to observe, although immediately it is discovered, she is much more weak, and much more small.

 

D O U B L E

Nom:2 R.A.: 12h.16m.

Dec: 40º40'

Mag: 5.8,8.1 Sep.: 11.4" P.A.: 260º Nat:? Spec.:K,B
AOC: 892 DSC: 674 D. of D.S.:23h.39m.(UT); 2-June-1988

2

    NOTE: One is in a very poor zone; there is a remarkable difference of brightness between the components that are slightly separated, unfolding itself with the eyeglass of 50x, the main one I see it orange, however, the secondary one I create to see it of blue color.

 

D O U B L E

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

Dec: 42º13'

Mag: 7.7, 8.1 Sep.: 47.5" P.A.: 50º Nat: ? Spec.: G, ?
AOC: 931 DSC: 710 D. of D.S.: 23h.15m.(UT); 20-Jan.-1990

es

NOTE: One is in a partially rich zone; there is a small difference of brightness between the components, are very separated, unfolding itself with the eyeglass of 50x, the main one is yellow.

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