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Name
  EF Eri  
AAVSO UID
000-BBF-776 (2643 observations)  
Constellation
Eridanus Sequence
J2000.0
03 14 13.23 -22 35 43.2  (48.55512 -22.59533) Search nearby
B1950.0 03 12 00.35 -22 46 50.2
Galactic coord. 212.938 -57.405
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
1RXS J031413.7-223533 2MASS J03141323-2235431 AAVSO 0309-22
Downes EF Eri USNO-B1.0 0674-0049911 X 03116-227
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Variability type
AM
Spectral type WD+L5
Mag. range
13.7 B - 18.4 V
Discoverer --
Epoch
12 Mar 1979 (HJD 2443944.9519) Ephemeris
Outburst --
Period 0.056265923 d  (81.022929 min)
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto Low and high states.
2 GCVS Team 2A0311 - 227. VB A (B 15.8m, 18", 260deg). mu alpha = +0.147", mu delta = -0.070". Epoch of narrow Min in IR light is given. The complex phenomenon of eclipses is described in [D.A.Allen, M.J.Ward, A.E.Wright, MN 195, 155, 1981.]. Oscillations with P ~20.2 and 13.7 Min. [G.Williams, W.A.Hiltner, ApJ 252, 277, 1982.]. Flickering.
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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 Mid-Infrared Spectrum of the Short Orbital Period Polar EF Eridani from
the Spitzer Space Telescope
2007ApJ...671..734H
3 R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version) 2005JAD....11....2D
4 R.A. Downes et al., 2001, PASP 113, 764 2001PASP..113..764D
5 J.Bailey, J.H.Hough, I.Gatley, D.J. Axon, Nature 301, N5897, 223, 1983. 1983Natur.301..223B
6 G.Williams, M.Johns, C.Price, A.Hiltner, F.Boley, S.Maker, D.Mook, Nature
281, N5726, 48, 1979.
1979Natur.281...48W
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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 = 17.21H = 15.67K = 15.37J - K = 1.84
AllWISE W1 = 14.19W2 = 13.53W3 = 11.44W4 = 9.57W1 - W2 = 0.66W3 - W4 = 1.87
GALEX-DR5 FUV = 19.23NUV = 18.48FUV - NUV = 0.75
Images
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Supporting Documents
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Revision History
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3 Otero, Sebastian Alberto 2011-04-29 18:21 UTC Primary record creation. Variability and spectral type from reference. Maximum magnitude from Downes (200). Minimum magnitude from AAVSO V-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.