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Latest Details
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Name
  RY UMa  
AAVSO UID
000-BBS-756 (43914 observations)  
Constellation
Ursa Major Sequence
J2000.0
12 20 27.33 +61 18 34.7  (185.11388 +61.30964) Search nearby
B1950.0 12 18 04.06 +61 35 13.8
Proper motion
RA: -20.781 +/- 0.042 mas/yDec: -7.333 +/- 0.042 mas/ySource: Gaia DR1
Galactic coord. 129.478 +55.423
Other names

(Internal only)
AAVSO 1215+61 AN 1.1909 BD+62 1224
HD 107397 HIP 60180 IRC +60215
SAO 15775    
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Variability type
SRA
Spectral type M2-M3IIIe
Mag. range
6.49 - 7.94 V
Discoverer --
Epoch
--
Outburst --
Period 310 d
Rise/eclipse dur. --
Remarks
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References
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1 Narrow and Broad-Band Photometry of Red Stars. Northern Giants 1967ApJS...14..307E
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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 = 3.57H = 2.70K = 2.29J - K = 1.27
AllWISE W3 = 1.07W4 = 0.20W3 - W4 = 0.87
GALEX-DR5 NUV = 18.41
SDSS-DR12 u = 11.82g = 11.39r = 10.22i = 9.45z = 6.46u - g = 0.43r - i = 0.78
Images
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Supporting Documents
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Campaigns/Programs
 Binocular program
 Legacy LPV Program
 LPV Program
Revision History
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3 Otero, Sebastian Alberto 2011-11-11 16:23 UTC Maximum magnitude from AAVSO V-data. Minimum magnitude from 1967ApJS...14..307E. Period confirmed with Hipparcos data. Type from Hipparcos and AAVSO data.
2 Admin, VSX 2010-01-04 23:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-17 20:33 UTC Initial upload.