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Latest Details
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Name
  ST UMa  
AAVSO UID
000-BBS-211 (41082 observations)  
Constellation
Ursa Major Sequence
J2000.0
11 27 50.38 +45 11 06.8  (171.95992 +45.18522) Search nearby
B1950.0 11 25 06.85 +45 27 39.2
Proper motion
RA: -9.14 +/- 0.37 mas/yDec: -17.02 +/- 0.34 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 160.144 +65.433
Other names

(Internal only)
AAVSO 1122+45 AN 42.1907 ASASSN-V J112750.34+451106.9
BD+45 1924 HD 99592 HIP 55936
HV 2899 IRC +50211 RAFGL 1489
SAO 43748    
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Variability type
SRB
Spectral type M4-M7III
Mag. range
6.0 - 7.2 V
Discoverer Henrietta Leavitt (1907)
Epoch
12 Mar 1997 (HJD 2450520.00) Ephemeris
Outburst --
Period 80.88 d
Rise/eclipse dur. --
Remarks
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References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 C. Koen, L. Eyer, 2002, MNRAS 331, 45 2002MNRAS.331...45K
2 Long-Term VRI Photometry of Small-Amplitude Red Variables. I. Light Curves
and Periods		 2001PASP..113..983P
3 Dunér, N. C.; Hartwig, E.; Muller, G., 1909, Benennung von neu entdeckten
veränderlichen Sternen		 1909AN....182..321D
External Links
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Location    Go   
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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 = 1.75H = 0.79K = 0.64J - K = 1.12
AllWISE W3 = -0.06W4 = -0.65W3 - W4 = 0.59
GALEX-DR5 FUV = 18.19NUV = 16.36FUV - NUV = 1.82
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 11 27 50.38 +45 11 06.8 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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1 Phase plot Otero, Sebastian Alberto 2011-11-11 23:12 UTC Phase plot with data from the literature.
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Campaigns/Programs
 Binocular program
 Legacy LPV Program
 LPV Program
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
4 Fernig, Leo 2022-09-21 20:30 UTC Discoverer updated from 1909AN....182..321D p327
3 Otero, Sebastian Alberto 2011-11-11 23:12 UTC Period, epoch and range from literature 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.

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