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Latest Details
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Name
  HIP 92307  
AAVSO UID
--  
Constellation
Sagittarius Sequence
J2000.0
18 48 48.91 -18 37 55.8  (282.20379 -18.63217) Search nearby
B1950.0 18 45 53.08 -18 41 21.3
Proper motion
RA: 5.305 +/- 0.049 mas/yDec: -1.276 +/- 0.030 mas/ySource: Gaia DR1
Galactic coord. 15.954 -7.818
Other names

(Internal only)
2MASS J18484891-1837557 BD-18 5080 CCDM J18488-1838A
EPIC 218532187 GC 25763 GSC 06285-03886
HD 173940 PPM 235056 SAO 161850
TIC 224041409 TYC 6285-3886-1 WDS J18488-1838A
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Variability type
EA
Spectral type A2V
Mag. range
7.22 V (0.035)Kp
Discoverer K. T. Wraight et al.
Epoch
22 Dec 2006 (HJD 2454091.88) Ephemeris
Outburst --
Period 4.79058 d
Rise/eclipse dur. 6%  (6.9 h)
Remarks
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1 Otero, Sebastian Alberto Eccentric system. Min II at phase 0.749, amplitude 0.023 Kp, duration 7%.
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References
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1 Howell, S. B.; et al., 2014, The K2 Mission: Characterization and Early
Results
2014PASP..126..398H
2 K.T. Wraight, G.J. White, D. Bewsher, A.J. Norton, 2011, MNRAS 416, 2477 2011MNRAS.416.2477W
3 Perryman, M. A. C.; et al., 1997, The HIPPARCOS and TYCHO catalogues 1997HIP...C......0E
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 = 6.66H = 6.58K = 6.53J - K = 0.12
AllWISE W1 = 6.34W2 = 6.45W3 = 6.54W4 = 6.53W1 - W2 = -0.11W3 - W4 = 0.01
APASS-DR9 B = 7.36V = 7.13g' = 7.31r' = 7.23i' = 7.26B - V = 0.23
Images
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Supporting Documents
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1 Phase plot Otero, Sebastian Alberto 2025-02-27 05:34 UTC Phase plot with K2 data.
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Revision History
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2 Otero, Sebastian Alberto 2025-02-27 05:31 UTC Period, epoch, eclipse duration and amplitude from K2 data. Maximum magnitude derived from Hipparcos data. Gaia DR3 position.
1 Admin, VSX 2012-06-07 00:56 UTC Preserved original object data.