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Latest Details
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Name
  BQ Sct  
AAVSO UID
000-BFL-537 (No observations)  
Constellation
Scutum Sequence
J2000.0
18 38 57.25 -09 04 10.6  (279.73853 -9.06962) Search nearby
B1950.0 18 36 12.99 -09 06 54.6
Proper motion
RA: -4.7 +/- 9.5 mas/yDec: 5.8 +/- 10.2 mas/ySource: UCAC4
Galactic coord. 23.443 -1.377
Other names

(Internal only)
AN 20.1925 ASASSN-V J183857.15-090410.7 GDS_J1838572-090410
OGLE-GD-LPV-019386 OGLE-IV DG1005.29.21189  
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Variability type
M
Spectral type --
Mag. range
10.392 (3.467) Ic
Discoverer Karl Reinmuth (1924)
Epoch
11 Jun 1967 (HJD 2439653.00) Ephemeris
Outburst --
Period 185.82 d
Rise/eclipse dur. --
Remarks
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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 V.P.Zessewitsch, Studies on Variable Stars in Selected Regions of Milky
Way. Ed. "Naukova Dumka", Kiev, 1976.
--
3 Guthnick, P.; et al., 1926, Benennung von neu entdeckten veränderlichen
Sternen
1926AN....227..161G
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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 = 5.69H = 4.63K = 4.13J - K = 1.56
AllWISE W1 = 3.68W2 = 2.93W3 = 2.63W4 = 2.03W1 - W2 = 0.75W3 - W4 = 0.60
APASS-DR9 g' = 15.78r' = 13.13i' = 10.55
Images
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Supporting Documents
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Revision History
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4 Fernig, Leo 2023-07-05 21:43 UTC Discoverer updated from 1926AN....227..161G page 170.
3 Otero, Sebastian Alberto 2023-02-21 22:25 UTC Period, mean magnitude and amplitude from 2022ApJS..260...46I. Gaia DR3 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.