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Latest Details
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Name
  ASAS J181555-1826.1  
AAVSO UID
000-BQC-780 (3 observations)  
Constellation
Sagittarius Sequence
J2000.0
18 15 54.93 -18 26 00.8  (273.97888 -18.43356) Search nearby
B1950.0 18 12 58.97 -18 27 03.8
Proper motion
RA: -0.137 +/- 0.439 mas/yDec: -2.752 +/- 0.499 mas/ySource: Gaia DR1
Galactic coord. 12.553 -0.793
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
2MASS J18155492-1826008 ASAS 181555-1826.1 BD-18 4869
GCRV 10713 GSC 06268-01013 Gaia DR3 4094888447887702656
HD 167412 PPM 718977 TIC 244111309
TYC 6268-1013-1 UCAC4 358-134622  
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Variability type
EA
Spectral type B5
Mag. range
8.44 - 8.82 V
Discoverer ASAS
Epoch
11 Feb 2001 (HJD 2451951.72) Ephemeris
Outburst --
Period 4.67170 d
Rise/eclipse dur. 9.5%  (10.7 h)
Remarks
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1 Otero, Sebastian Alberto Eccentric system. Min II= 8.55 V at phase 0.512, duration 11.5%. Reflection effect.
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References
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1 K.T. Wraight, Glenn J. White, D. Bewsher, A.J. Norton, 2011, MNRAS 416,
2477
2011MNRAS.416.2477W
2 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
3 Catalogue of Stellar Spectral Classifications (Skiff, 2009-2016) 1943ApJ....97..300N
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 = 8.20H = 8.23K = 8.18J - K = 0.02
AllWISE W1 = 8.23W2 = 8.29W3 = 7.94W4 = 4.70W1 - W2 = -0.06W3 - W4 = 3.24
APASS-DR9
Images
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Supporting Documents
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Revision History
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4 Otero, Sebastian Alberto 2025-02-27 06:23 UTC Period, epoch, eclipse duration and range from ASAS-3 data.
3 Admin, VSX 2017-12-16 03:37 UTC Spectral type from Skiff (VizieR on-line data: B/mk)
2 Zalezsak, Tamas 2016-03-24 01:09 UTC UCAC4 position.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.