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Name
  V0838 Mon  
AAVSO UID
000-BBM-355 (8011 observations)  
Constellation
Monoceros Sequence
J2000.0
07 04 04.82 -03 50 50.6  (106.02008 -3.84739) Search nearby
B1950.0 07 01 35.52 -03 46 20.1
Proper motion
RA: -43.1 +/- 6.8 mas/yDec: 16.2 +/- 6.3 mas/ySource: UCAC4
Galactic coord. 217.797 +1.052
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
2MASS J07040482-0350506 AAVSO 0659-03 Downes V0838 Mon
GDS_J0704048-035050 GSC 04822-00039 VAR MON 02
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Variability type
V838MON
Spectral type M6I/III:+B3V
Mag. range
6.7 - 16.05 V
Discoverer --
Epoch
--
Outburst 2002
Period --
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto It evolved from spectral type F to a late M-type supergiant in the declining phase of the outburst. The B3V-type companion probably became engulfed in a dusty cloud of matter from the 2002 explosion.
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References
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1 Tylenda, R., et al., 2011, High-resolution optical spectroscopy of V838
Monocerotis in 2009
2011A&A...532A.138T
2 R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version) 2005JAD....11....2D
3 IAU Circ No. 7785, 2002. 2002IAUC.7785....1B
4 R.A. Downes et al., 2001, PASP 113, 764 2001PASP..113..764D
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 = 13.87H = 13.51K = 13.33J - K = 0.54
AllWISE W1 = 4.68W2 = 3.71W3 = -0.13W4 = -1.71W1 - W2 = 0.96W3 - W4 = 1.58
Images
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Supporting Documents
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Revision History
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4 Otero, Sebastian Alberto 2012-07-07 22:26 UTC Type and spectral type from 2011A&A...532A.138T. UCAC3 position.
3 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
2 Admin, VSX 2009-09-23 00:54 UTC Added year of nova outburst.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.