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Name
  AB Sco  
AAVSO UID
000-BFK-382 (1 observation)  
Constellation
Scorpius Sequence
J2000.0
16 45 44.09 -28 12 49.2  (251.43371 -28.21367) Search nearby
B1950.0 16 42 36.58 -28 07 23.4
Proper motion
RA: -15.2 +/- 2.6 mas/yDec: -4.1 +/- 2.2 mas/ySource: UCAC4
Galactic coord. 352.963 +11.147
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
2MASS J16454408-2812490 AN 245.1904 ASAS J164543-2812.8
ASASSN-V J164543.95-281248.9 GSC 06821-00014 HV 1093
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Variability type
RRAB
Spectral type --
Mag. range
12.2 - 13.4 V
Discoverer Annie J. Cannon (1904)
Epoch
16 Jan 2001 (HJD 2451925.66) Ephemeris
Outburst --
Period 0.4198908 d  (10.07738 h)
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto ASAS-3 magnitudes contaminated by GSC 06821-00096 (V= 12.55, UCAC3 and CMC14). Light from the companion have been subtracted for the range given.
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References
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1 D.M. Szczygiel, G. Pojmanski, B. Pilecki, 2009, arXiv:0906.2199v1
[astro-ph.SR]
2009arXiv0906.2199S
2 Galactic Fundamental Mode RR~Lyrae Stars. Period-Amplitude Diagram,
Metallicities and Distribution
2009AcA....59..137S
3 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
4 A.Ya.Filin, Stalinabad Tsirk. N59/60, 1948. --
5 H.H.Swope, HB N887, 1932. 1932BHarO.887....6S
6 Dunér, N. C.; Hartwig, E.; Muller, G., 1911, Benennung von neu entdeckten
veränderlichen Sternen
1911AN....190...57.
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 = 11.74H = 11.44K = 11.35J - K = 0.39
AllWISE W1 = 11.09W2 = 11.11W3 = 10.89W1 - W2 = -0.02
APASS-DR9 B = 13.34V = 12.74g' = 13.12r' = 12.66i' = 12.48B - V = 0.60
Images
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Supporting Documents
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Revision History
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4 Fernig, Leo 2022-11-15 22:32 UTC Discoverer updated from 1911AN....190...57. page 67.
3 Otero, Sebastian Alberto 2011-04-05 20:58 UTC Primary record creation. Type and period from reference. Epoch and range from ASAS-3 data . UCAC3 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.