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Details for Revision 3
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Name
  V1216 Sgr  
AAVSO UID
000-BCX-044 (13681 observations)  
Constellation
Sagittarius Sequence
J2000.0
18 49 49.36 -23 50 10.4  (282.45567 -23.83622) Search nearby
B1950.0 18 46 46.73 -23 53 40.1
Galactic coord. 11.307 -10.285
Other names

(Internal only)
1RXS J184948.7-235003 2MASS J18494929-2350101 AAVSO 1843-23
ASAS J184948-2350.0 ASAS J184949-2350.2 CD-23 14742
GJ 729 GJ 729.0 Gaia DR3 4075141768785646848
HIP 92403 PPM 734465 Ross 154
TIC 224752354 TYC 6859-1332-1 UCAC4 331-182994
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Variability type
BY+UV
Spectral type M3.5e
Mag. range
10.570 (0.030) V
Discoverer --
Epoch
--
Outburst --
Period 2.869 d
Rise/eclipse dur. --
Remarks
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1 Riesen, Peter It showed an unusually strong flare during a 61 ks Chandra ACIS-S observation, with an optical brightening of about 0.15 mag in V and an X-ray peak of over 100 times the quiescent level (2008ApJ...676..610W).
2 GCVS Team mu = 0.720", P = 106.7deg.
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References
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1 M. Kiraga, 2012, Acta Astronomica 62, 67 2012AcA....62...67K
2 M. Kiraga, 2012, Acta Astronomica 62, 67 2012AcA....62...67K
3 Wargelin, B. J.; Kashyap, V. L.; Drake, J. J.; et al., 2008, X-Ray Flaring
on the dMe Star, Ross 154
2008ApJ...676..610W
4 M. Kiraga, K. Stepien, 2007, Acta Astronomica 57, 149 2007AcA....57..149K
5 Riaz, B.; Gizis, J. E.; Harvin, J., 2006, Identification of New M Dwarfs in
the Solar Neighborhood
2006AJ....132..866R
6 A.D.Andrews, IBVS N273, 1968. 1968IBVS..273....1A
7 A.D.Andrews, PASP 78, 542, 1966. 1966PASP...78..542A
External Links
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Supporting Documents
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Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
4 Riesen, Peter 2025-08-11 20:12 UTC Spectral type from 2006AJ....132..866R. Amplitude from 2008ApJ...676..610W.
3 Admin, VSX 2012-04-20 01:04 UTC Update from [2012AcA....62...67K].
2 Admin, VSX 2009-04-07 00:45 UTC Update from [2007AcA....57..149K ].
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.