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Name
  U Gem  
AAVSO UID
000-BBN-884 (165340 observations)  
Constellation
Gemini Sequence
J2000.0
07 55 05.21 +22 00 04.8  (118.77171 +22.00133) Search nearby
B1950.0 07 52 07.84 +22 08 07.0
Galactic coord. 199.223 +23.394
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
1RXS J075505.1+220008 AAVSO 0749+22 BD+22 1807
Downes U Gem HD 64511 X 07521+221
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Variability type
UGSS+E
Spectral type pec(UG)+M4.5V
Mag. range
8.2 - 14.9 V
Discoverer John Russel Hind
Epoch
13 Aug 2002 (HJD 2452500.00900) Ephemeris
Outburst --
Period 0.1769061
Rise/eclipse dur. --
Remarks
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1 GCVS Team Min = 2437638.82685 + 0.17690602d*E + 5.4d*10**(-12)*E**2 [S.Arnold, R.A.Berg, J.G.Duthie, ApJ 206, 790, 1976.]. Depth of Min 0.5m - 1.0m. Spectrum description [J.Stauffer, H.Spinrad, J.Thorstensen, PASP 91, N539, 59, 1979.].
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References
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1 Light curve from CRTS/CSS (Drake et al. 2009, ApJ, 696, 870) 2009ApJ...696..870D
2 R.A.Downes, 2001, PASP 113, 764 (2006 archival) 2005JAD....11....2D
3 J.M. Kreiner, 2004, Acta Astronomica 54, 207 2004AcA....54..207K
4 R.A.Downes, 2001, PASP 113, 764 2001PASP..113..764D
5 D.R.B.Saw, JBAA 92, N3, 127, 1982. 1982JBAA...92..127S
6 Bob Nelson's O-C files, 2014 --
7 F.Lenouvel, J.Daguillon, JO 39, N1, 9, 1956. --
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Images
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Supporting Documents
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Revision History
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4 Admin, VSX 2010-01-04 23:43 UTC Position updated from the GCVS version of November 2009.
3 Admin, VSX 2009-10-29 21:31 UTC Update from [2004AcA....54..207K]
2 Molnar, Peter 2006-08-25 22:01 UTC Added discoverer.
1 Admin, VSX 2005-12-17 20:33 UTC Initial database population.