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Details for Revision 2
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Name
  V2989 Sgr  
AAVSO UID
000-BFH-338 (No observations)  
Constellation
Sagittarius Sequence
J2000.0
18 18 54.64 -32 16 14.9  (274.72767 -32.27081) Search nearby
B1950.0 18 15 38.83 -32 17 30.4
Galactic coord. 0.604 -7.875
Other names

(Internal only)
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2MASS J18185462-3216150 ASAS J181856-3216.0 IRAS 18156-3217
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Variability type
M
Spectral type --
Mag. range
16.4 - <18.8 p
Discoverer --
Epoch
02 May 1957 (HJD 2435961) Ephemeris
Outburst --
Period 328: d
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto ASAS-3 magnitudes contaminated by GSC 07397-00885 (V= 13.0; sep. 22"). Range has been corrected.
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References
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1 Iwanek, P.; et al., 2022, The OGLE Collection of Variable Stars: Nearly
66,000 Mira Stars in the Milky Way
2022ApJS..260...46I
2 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
3 L.PLaut, AsAp Suppl 4, N2, 75, 1971. 1971A&AS....4...75P
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Supporting Documents
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Stellar Association Membership
 Ferrero 1 Open Cluster 2012A&A...548A..97Z
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
4 Otero, Sebastian Alberto 2023-02-21 21:47 UTC Period from 2022ApJS..260...46I. Gaia DR3 position.
3 Otero, Sebastian Alberto 2018-12-08 01:42 UTC Period, epoch and maximum magnitude from ASAS-3 data. Minimum magnitude from GSC2.3. Gaia DR2 position.
2 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.