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Name
  BE UMa  
AAVSO UID
000-BFP-018 (108 observations)  
Constellation
Ursa Major Sequence
J2000.0
11 57 44.82 +48 56 18.3  (179.43677 +48.93842) Search nearby
B1950.0 11 55 09.84 +49 13 01.3
Proper motion
RA: 13.8 +/- 2.6 mas/yDec: -16.8 +/- 3.0 mas/ySource: UCAC4
Galactic coord. 144.811 +65.846
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
CSS_J115744.8+485619 Downes BE UMa LINEAR 2639856
PG 1155+492 SVS 1424 UCAC4 695-052298
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Variability type
EA/WD+R
Spectral type DO+MVe
Mag. range
14.8 - 17.8 B
Discoverer --
Epoch
28 Jan 1982 (HJD 2444998.2809) Ephemeris
Outburst --
Period 2.2911665 d
Rise/eclipse dur. 2%
Remarks
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1 GCVS Team d = 0.006P. Outside eclipses var 14.8m <= B <= 16.0m (reflection effect). The depth of eclipses for lambda lambda 3330 - 3700 A is greater than 4.3m,that for lambda lambda 5265 - 6005 A is 1.5m.
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References
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1 Drake, A. J.; et al., 2014, The Catalina Surveys Periodic Variable Star
Catalog (version May 24, 2017)
2014ApJS..213....9D
2 L. Palaversa, Z. Ivezic, L. Eyer et al., 2013, arXiv:1308.0357
[astro-ph.GA]
2013arXiv1308.0357P
3 Light curve from CRTS/CSS (Drake et al. 2009, ApJ, 696, 870) 2009ApJ...696..870D
4 R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version) 2005JAD....11....2D
5 R.A. Downes et al., 2001, PASP 113, 764 2001PASP..113..764D
6 C.BarbierI, R.Barbon, L.de Bastiani, G.Romano, P.Pesch, N.Sanduleak, AsAp
Suppl 61, 163, 1985.
1985A&AS...61..163B
7 Bob Nelson's O-C files, 2016 --
8 V.P.Goranskij, S.Yu.Shugarov, Manuscript, 1985. --
External Links
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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 = 13.96H = 13.71K = 13.63J - K = 0.33
AllWISE W1 = 13.58W2 = 13.43W1 - W2 = 0.15
APASS-DR9 B = 15.44V = 15.37g' = 15.34r' = 15.31i' = 15.03B - V = 0.06
GALEX-DR5 FUV = 14.00NUV = 14.60FUV - NUV = -0.60
SDSS-DR12 u = 15.48g = 15.77r = 15.88i = 15.86z = 15.85u - g = -0.29r - i = 0.02
Images
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Supporting Documents
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Revision History
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3 Otero, Sebastian Alberto 2018-08-27 21:34 UTC Type from 2014ApJS..213....9D (2017 version). UCAC4 position.
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.