AAVSO Home



Welcome, Guest. You are not logged in.
Log in
    Revise    New Search
Latest Details
Log in to retrieve additional aliases from SIMBAD.
Name
  T CVn  
AAVSO UID
000-BBS-883 (13487 observations)  
Constellation
Canes Venatici Sequence
J2000.0
12 30 12.40 +31 30 12.0  (187.55167 +31.50333) Search nearby
B1950.0 12 27 43.87 +31 46 46.1
Proper motion
RA: -0.90 +/- 1.50 mas/yDec: 3.77 +/- 1.06 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 168.268 +83.633
Other names

(Internal only)
AAVSO 1225+32 ASASSN-V J123012.37+313012.7 BD+32 2250
HD 108833 HIP 61009 IRC +30239
RAFGL 4849S    
(Not logged in)  Add name
Variability type
SRA
Spectral type M6.5e
Mag. range
8.9 - 11.7 V
Discoverer T.D. Anderson, 1897
Epoch
06 Jan 1976 (HJD 2442784.00) Ephemeris
Outburst --
Period 290.09 d
Rise/eclipse dur. 42%  (122 d)
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 GCVS Team SRA? Delta(m) strongly varies.
(Not logged in)  Add remark
References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 The HIPPARCOS and TYCHO catalogues 1997A&A...323L..49P
2 T. Karlsson, Maxima of Mira stars --
3 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.		 --
External Links
Links open in a new window. Not all links may be valid for this particular target.
Location    Go   
Select a Location for more details.
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 = 3.27H = 2.38K = 1.97J - K = 1.29
AllWISE W3 = 0.88W4 = 0.43W3 - W4 = 0.45
APASS-DR9 B = 12.18V = 10.51g' = 11.52B - V = 1.67
GALEX-DR5 NUV = 20.27
SDSS-DR12 u = 14.00g = 12.62r = 10.12i = 12.34z = 7.55u - g = 1.38r - i = -2.22
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 12 30 12.40 +31 30 12.0 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
There are currently no supporting documents on file for this star. (Not logged in)  Add document
Campaigns/Programs
 LPV Program
 Percy's Unusual LPVs
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
3 Otero, Sebastian Alberto 2011-11-21 11:38 UTC Type and range from AAVSO and Hipparcos/Tycho 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.

Guidelines    FAQ    Manual    Forum    Variability Types    Passbands    Copyright    Acknowledgments    Privacy    Contact    Help us   
The International Variable Star Index
© 2005-2026 American Association of Variable Star Observers (AAVSO)
Version 1.1 [C]
172.30.5.179