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Latest Details
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Name
  alf 2 CVn  
AAVSO UID
000-BBT-357 (251 observations)  
Constellation
Canes Venatici Sequence
J2000.0
12 56 01.67 +38 19 06.2  (194.00696 +38.31839) Search nearby
B1950.0 12 53 41.52 +38 35 17.2
Proper motion
RA: -235.08 mas/yDec: 53.54 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 118.305 +78.769
Other names

(Internal only)
12 CVn A alf CVn 2 1RXS J125600.6+381856
2MASS J12560168+3819059 AAVSO 1251+38 ADS 8706 A
BD+39 2580 A Cor Caroli HD 112413
HIP 63125 HR 4915 IRC +40239
SAO 63257 TIC 17668155 TYC 3021-2645-1
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Variability type
ACV
Spectral type A0pSiEu
Mag. range
2.86 - 2.93 V
Discoverer --
Epoch
09 Sep 1965 (HJD 2439012.61) Ephemeris
Outburst --
Period 5.46939 d
Rise/eclipse dur. 60%  (78.8 h)
Remarks
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1 GCVS Team VB A (B 5.60m, F0V, 19.6", 228deg). Epoch of Min is given.
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References
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1 The HIPPARCOS Catalogue 1997HIP...C......0E
2 G.Farnsworth, ApJ 76, 313, 1932. 1932ApJ....76..313F
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Catalog Data
Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service. These data may not be complete.
2MASS J = 3.06H = 3.13K = 3.15J - K = -0.09
Images
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Supporting Documents
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Revision History
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3 Otero, Sebastian Alberto 2011-11-16 21:11 UTC Range from Hipparcos and GCPD data.
2 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.