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
  U Gem  
AAVSO UID
000-BBN-884 (211516 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 Gaia23cxt HD 64511
X 07521+221    
(Not logged in)  Add name
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.].
(Not logged in)  Add remark
References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 Bob Nelson's O-C files, 2016 --
2 Light curve from CRTS/CSS (Drake et al. 2009, ApJ, 696, 870) 2009ApJ...696..870D
3 R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version) 2005JAD....11....2D
4 J.M. Kreiner, 2004, Acta Astronomica 54, 207 2004AcA....54..207K
5 R.A. Downes et al., 2001, PASP 113, 764 2001PASP..113..764D
6 D.R.B.Saw, JBAA 92, N3, 127, 1982. 1982JBAA...92..127S
7 F.Lenouvel, J.Daguillon, JO 39, N1, 9, 1956. 1956JO.....39....1L
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 = 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.
Image not downloaded. Click Retrieve Image to download and view. Retrieve image
Supporting Documents
There are currently no supporting documents on file for this star. (Not logged in)  Add document
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 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
3 Admin, VSX 2009-10-30 01:31 UTC Update from [2004AcA....54..207K].
2 Molnar, Peter 2006-08-26 02:01 UTC Added discoverer.
1 Admin, VSX 2005-12-18 01:33 UTC Initial database population.