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Name
  NSV 24345  
AAVSO UID
000-BCB-746 (No observations)  
Constellation
Sagittarius Sequence
J2000.0
18 15 12.91 -20 43 41.8  (273.80379 -20.72828) Search nearby
B1950.0 18 12 13.93 -20 44 41.7
Proper motion
RA: 1.60 +/- 0.57 mas/yDec: -1.51 +/- 0.41 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 10.456 -1.741
Other names

(Internal only)
15 Sgr ALS 4818 BD-20 5054
CPD-20 6918 GSC 06276-01023 HD 167264
HIP 89439 HR 6822 Hilt 722
LS 4818 MCW 633 PPM 268128
SAO 186543 TYC 6276-1023-1 WDS J18152-2044AB
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Variability type
ACYG:
Spectral type O9.7Iab
Mag. range
5.32 - 5.36 V
Discoverer --
Epoch
--
Outburst --
Period 2.20858 d
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto SB1 with P= 668 d. Additional companions 1.3", 2.3" and 7.0" away.
2 GCVS Team Hp = 5.33 - 5.37 [The Hipparcos and Tycho Catalogues, Vol.11 and Vol.17, CD-ROM No.1, SP-1200, ESA, 1997.].
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References
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1 Sana, H.; et al., 2014, Southern Massive Stars at High Angular Resolution:
Observational Campaign and Companion Detection
2014ApJS..215...15S
2 Sota, A.; et al., 2014, The Galactic O-Star Spectroscopic Survey (GOSSS).
II. Bright Southern Stars
2014ApJS..211...10S
3 C. Koen, L. Eyer, 2002, MNRAS 331, 45 2002MNRAS.331...45K
4 A.M.van Genderen, AsAp 208, No.1, 135, 1989. 1989A&A...208..135V
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 = 5.21H = 5.21K = 5.16J - K = 0.05
AllWISE W1 = 5.18W2 = 5.05W3 = 5.13W4 = 4.84W1 - W2 = 0.13W3 - W4 = 0.29
APASS-DR9 B = 6.26V = 6.08B - V = 0.18
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 18 15 12.91 -20 43 41.8 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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Revision History
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3 Otero, Sebastian Alberto 2016-04-02 22:24 UTC Remark from 2014ApJS..215...15S. Spectral type from 2014ApJS..211...10S. Range from HIPPARCOS data. HIPPARCOS position.
2 Admin, VSX 2013-05-03 23:32 UTC Update from [2002MNRAS.331...45K].
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.