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Latest Details
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Name
  V2973 Sgr  
AAVSO UID
000-BFH-322 (No observations)  
Constellation
Sagittarius Sequence
J2000.0
18 18 35.03 -31 04 03.2  (274.64596 -31.06756) Search nearby
B1950.0 18 15 21.13 -31 05 17.0
Proper motion
RA: 2.9 +/- 7.7 mas/yDec: -5.8 +/- 7.7 mas/ySource: UCAC4
Galactic coord. 1.651 -7.262
Other names

(Internal only)
2MASS J18183502-3104032 ASAS J181835-3104.1 ASASSN-V J181835.01-310404.5
GSC 07393-00631 UCAC4 295-187353  
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Variability type
M
Spectral type --
Mag. range
12.3 - <15.5 V
Discoverer --
Epoch
02 May 1957 (HJD 2435961.0) Ephemeris
Outburst --
Period 224.9 d
Rise/eclipse dur. --
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 Otero, Sebastian Alberto VSP Note: 15.2 mag. star 10" to the S and 13.6 mag. star 18" to the SE.
2 Otero, Sebastian Alberto J-K= 1.29. ASAS-3 magnitudes contaminated by 2MASS J18183496-3104127 (V= 15.2; sep. 10") and 2MASS J18183564-3104191 (V= 13.6; sep. 18"). Range has been corrected.
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References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 Pojmanski, G., 2002, The All Sky Automated Survey 2002AcA....52..397P
2 L.PLaut, AsAp Suppl 4, N2, 75, 1971. 1971A&AS....4...75P
External Links
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Location    Go   
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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 = 8.00H = 7.10K = 6.71J - K = 1.29
AllWISE W1 = 6.63W2 = 6.23W3 = 4.46W4 = 3.40W1 - W2 = 0.40W3 - W4 = 1.06
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 18 18 35.03 -31 04 03.2 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
2 Otero, Sebastian Alberto 2016-03-02 01:35 UTC Correct identification from 1971A&AS....4...75P. Period and maximum magnitude from ASAS-3 data. Minimum magnitude derived from UCAC3. UCAC4 position.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.

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