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Name
  U Gem  
AAVSO UID
000-BBN-884 (195630 observations)  
Constellation
Gemini Sequence
J2000.0
07 55 05.21 +22 00 04.8  (118.77171 +22.00133) Search nearby
B1950.0 07 52 07.76 +22 08 03.5
Proper motion
RA: -29.4 +/- 2.5 mas/yDec: -39.7 +/- 2.7 mas/ySource: UCAC4
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 2452500.009) Ephemeris
Outburst --
Period 0.1769061 d  (4.24575 h)
Rise/eclipse dur. --
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
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, 2016 --
7 F.Lenouvel, J.Daguillon, JO 39, N1, 9, 1956. --
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 = 11.65H = 11.07K = 10.83J - K = 0.82
AllWISE W1 = 10.55W2 = 10.28W3 = 9.88W4 = 8.74W1 - W2 = 0.28W3 - W4 = 1.14
APASS-DR9 B = 14.61V = 14.28g' = 14.54r' = 14.18i' = 14.27B - V = 0.34
GALEX-DR5 FUV = 14.27NUV = 14.35FUV - NUV = -0.08
SDSS-DR12 u = 10.72g = 10.26r = 10.42i = 10.50z = 10.99u - g = 0.47r - i = -0.08
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 07 55 05.21 +22 00 04.8 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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Campaigns/Programs
 Legacy CVs
 Individual campaigns
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
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.