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Name
  GR Sgr  
AAVSO UID
000-BCC-196 (10 observations)  
Constellation
Sagittarius Sequence
J2000.0
18 22 58.50 -25 34 47.3  (275.74375 -25.57981) Search nearby
B1950.0 18 19 52.90 -25 36 20.7
Proper motion
RA: 3.2 +/- 7.6 mas/yDec: -2.7 +/- 7.8 mas/ySource: UCAC4
Galactic coord. 7.000 -5.592
Other names

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Downes GR Sgr HV 4012  
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Variability type
NA
Spectral type em
Mag. range
7.5: - 16.6 p
Discoverer Ida Elizabeth Woods
Epoch
30 Apr 1924 (HJD 2423906) Ephemeris
Outburst 1924
Period 225 d
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto Period is for semiregular variations not orbital (2015ApJS..219...26M).
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References
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1 Tappert, C.; et al., 2015, Life after eruption - V. Spectroscopy of eight
candidate old novae with Gemini-South
2015MNRAS.450..943T
2 Mróz, P.; Udalski, A.; Poleski, R.; et al., 2015, OGLE Atlas of Classical
Novae. I. Galactic Bulge Objects
2015ApJS..219...26M
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 I.E.Woods, HB N851, 1927. 1927BHarO.851R...1W
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 = 14.87H = 14.53K = 14.51J - K = 0.36
Images
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Supporting Documents
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Revision History
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6 Schmeer, Patrick 2019-04-11 14:50 UTC Gaia DR2 position. Discoverer's given names added.
5 Admin, VSX 2017-12-15 12:52 UTC Spectral type from Skiff (VizieR on-line data: B/mk)
4 Otero, Sebastian Alberto 2016-10-15 23:34 UTC Period from 2015ApJS..219...26M. Type from 2015MNRAS.450..943T.
3 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
2 Admin, VSX 2007-03-23 19:52 UTC Discoverer added.
1 Admin, VSX 2005-12-18 01:33 UTC Initial database population.