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Name
  V0838 Her  
AAVSO UID
000-BCD-266 (1189 observations)  
Constellation
Hercules Sequence
J2000.0
18 46 31.47 +12 14 02.1  (281.63112 +12.23392) Search nearby
B1950.0 18 44 11.92 +12 10 45.0
Galactic coord. 43.316 +6.619
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
1WGA J1846.5+1213 2RXP J184631.8+121357 Downes V0838 Her
GSC2.3 N28G098214 N Her 1991 Nova Her 1991
Nova Herculis 1991 PSO J184631.441+121402.335  
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Variability type
NA+E
Spectral type em
Mag. range
5.3 - 20.5: V
Discoverer Matsuo Sugano and George Eric Deacon Alcock (independently)
Epoch
22 Apr 1991 (HJD 2448369.227) Ephemeris
Outburst 1991
Period 0.297635 d  (7.1432 h)
Rise/eclipse dur. --
Remarks
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1 Schmeer, Patrick VSP Note: 21st mag. star 1" to the NW, 18.7 mag. star 2" to the SE and 14.4 mag. star 8" to the NW.
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References
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1 Kato, T., 2023, Eclipse observations of V838 Her (Nova Her 1991) during
nova eruption
2023arXiv230501197K
2 R.J. Strope, B.E. Schaefer, A.A. Henden, 2010, arXiv:1004.3698v1
[astro-ph.SR]
2010arXiv1004.3698S
3 M. Kato, I. Hachisu, A. Cassatella, 2009, arXiv:0909.1506v1 [astro-ph.SR] 2009arXiv0909.1506K
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 Catalogue of Stellar Spectral Classifications (Skiff, 2009-2016) 1994ApJ...420..830S
7 D.Ingram, P.Garnawich, P.Green, P.Szkody, PASP 104, No.676, 402, 1992. 1992PASP..104..402I
8 AAVSO Circ No.245, 1991. --
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 = 16.13H = 15.46K = 15.36J - K = 0.77
Images
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Supporting Documents
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Revision History
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7 Otero, Sebastian Alberto 2023-05-03 04:23 UTC Epoch (eclipses not outburst peak) from 2023arXiv230501197K.
6 Schmeer, Patrick 2019-02-16 16:10 UTC Gaia DR2 position. Discoverers' given names added. Minimum magnitude derived from Pan-STARRS1 and Gaia DR2.
5 Admin, VSX 2017-12-16 01:29 UTC Spectral type from Skiff (VizieR on-line data: B/mk)
4 Admin, VSX 2010-04-29 00:57 UTC Update from [2010arXiv1004.3698S].
3 Admin, VSX 2009-09-10 12:54 UTC Update from [2009arXiv0909.1506K].
2 Admin, VSX 2007-03-23 19:52 UTC Discoverer added.
1 Admin, VSX 2005-12-18 01:33 UTC Initial database population.