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Details for Revision 2
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Name
  BL Sco  
AAVSO UID
000-BFK-407 (3 observations)  
Constellation
Scorpius Sequence
J2000.0
17 24 07.41 -38 52 25.3  (261.03087 -38.87369) Search nearby
B1950.0 17 20 40.59 -38 49 41.6
Galactic coord. 349.235 -1.636
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
2MASS J17240741-3852253 AN 51.1916 ASAS J172407-3852.4
GSC 07883-01248 HD 157288 HV 3406
IOMC 7883000036 IRAS 17206-3849  
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Variability type
M
Spectral type M5e
Mag. range
11.0 - 17.0 p
Discoverer --
Epoch
13 Oct 1939 (HJD 2429550) Ephemeris
Outburst --
Period 396.3 d
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto VSP Note: Two 16th mag. stars, one 4" to the NE and the other 9" to the S.
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References
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1 Catalogue of Stellar Spectral Classifications (Skiff, 2014) 2014yCat....102023S
2 J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info)
2012arXiv1210.0821A
3 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
4 H.H.Swope, HA 109, N9, 1943. 1942AnHar.109...31S
5 Hartwig, E.; Muller, G., 1921, Benennung von neu entdeckten veraenderlichen
Sternen
1921AN....212..353.
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Supporting Documents
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Revision History
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4 Fernig, Leo 2023-03-29 20:24 UTC Discoverer updated from 1921AN....212..353. page 369.
3 Otero, Sebastian Alberto 2014-03-06 22:35 UTC Primary record creation. Period and range from ASAS-3 data. Spectral type from Skiff (2014).
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.