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Name
  EI UMa  
AAVSO UID
000-BBP-822 (31813 observations)  
Constellation
Ursa Major Sequence
J2000.0
08 38 22.00 +48 38 02.1  (129.59167 +48.63392) Search nearby
B1950.0 08 34 49.24 +48 48 35.2
Proper motion
RA: 0.4 +/- 2.7 mas/yDec: -6.4 +/- 3.0 mas/ySource: UCAC4
Galactic coord. 170.882 +37.357
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
1RXS J083821.6+483800 2MASS J08382199+4838021 AAVSO 0831+48
Downes EI UMa PG 0834+488 X 08348+488
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Variability type
DQ
Spectral type WD+K4:
Mag. range
13.4 - 15.8 V
Discoverer --
Epoch
--
Outburst --
Period 0.2681 d  (6.43 h)
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto Small amplitude and long duration flare observed. Unlikely UG-type.
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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 The Intermediate Polar EI UMa: A Prepolar Cataclysmic Variable 2008ApJ...678..376R
3 R.A.Downes, 2001, PASP 113, 764 (2006 archival) 2005JAD....11....2D
4 R.A.Downes, 2001, PASP 113, 764 2001PASP..113..764D
5 I.L.Andronov, Astr Tsirk No.1417,5,1986. 1986ATsir1417....5A
6 R.F.Green, D.H.Ferguson, J.Liebert, M.Schmidt, PASP 94,No.559,560,1982. 1982PASP...94..560G
7 K. Mukai, The Intermediate Polars --
External Links
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Images
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Supporting Documents
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Revision History
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3 Otero, Sebastian Alberto 2011-05-17 21:21 UTC Primary record creation. Type, orbital period and spectral type from reference. Range from 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.