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Details for Revision 3
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Name
  V1294 Sco  
AAVSO UID
--  
Constellation
Scorpius Sequence
J2000.0
16 53 59.98 -41 42 52.9  (253.49990 -41.71470) Search nearby
B1950.0 16 50 29.35 -41 38 00.9
Galactic coord. 343.530 +1.278
Other names

(Internal only)
ASAS J165400-4142.9 CD-41 11022 CPD-41 7713
GSC 07876-02134 HD 152218 NSV 8020
PPM 322343 SAO 227376 cl Br 134 (NGC 6231)
cl Segg 2 (NGC 6231)    
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Variability type
EA
Spectral type O9V
Mag. range
7.58 - 7.67 V
Discoverer --
Epoch
13 Jul 2002 (HJD 2452468.62) Ephemeris
Outburst --
Period 5.604 d
Rise/eclipse dur. --
Remarks
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1 2021A&A...647A..12K HB amplitude 0.022 TESS. Classified as SPB in 2021A&A...647A..12K athough spectral types are not consistent with that.
2 Hinzel, David H. Apsidal period = 176 y. High eccentricity (~0.28). Rotational periods 2.69 d. (primary) and 2.79 d. (secondary).
3 Otero, Sebastian Alberto Fainter companion 4".3 away (2014ApJS..215...15S).
4 Otero, Sebastian Alberto Assymetric eclipse. Rising branch slower than ascending branch.
5 2005IBVS.5630....1O Min II = 7.59V.
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References
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1 Kolaczek-Szymanski, P. A.; et al., 2021, Massive heartbeat stars from TESS.
I. TESS sectors 1-16		 2021A&A...647A..12K
2 Rauw, G.; et al., 2016, Apsidal motion in the massive binary HD 152218 2016A&A...594A..33R
3 Sana, H.; et al., 2014, Southern Massive Stars at High Angular Resolution:
Observational Campaign and Companion Detection		 2014ApJS..215...15S
4 J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info)		 2012arXiv1210.0821A
5 E.V. Kazarovets, N.N. Samus, O.V. Durlevich, N.N. Kireeva, E.N. Pastukhova,
2008, IBVS 5863		 2008IBVS.5863....1K
6 E.V. Kazarovets, N.N. Samus, O.V. Durlevich, N.N. Kireeva, E.N. Pastukhova,
2008, IBVS 5863		 2008IBVS.5863....1K
7 Mayer, P.; et al., 2008, Improved estimates of the physical properties of
the O-star binary V1007 Sco = HD 152248 and notes on several other binaries
in the NGC 6231 cluster		 2008A&A...481..183M
8 S.A.Otero, P.Wils, IBVS N5630, 2005. 2005IBVS.5630....1O
9 Pojmanski, G., 2002, The All Sky Automated Survey 2002AcA....52..397P
10 G.Hill, D.L.Crawford, J.V.Barnes, AJ 79, No.11, 1271, 1974. 1974AJ.....79.1271H
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Supporting Documents
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Stellar Association Membership
 NGC 6231 Open Cluster 2012A&A...548A..97Z
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
8 Otero, Sebastian Alberto 2024-06-13 12:24 UTC Type from 2021A&A...647A..12K.
7 Hinzel, David H. 2017-08-14 22:33 UTC Spectral type from 2016A&A...594A..33R.
6 Otero, Sebastian Alberto 2016-04-01 02:29 UTC Remark from 2014ApJS..215...15S.
5 Otero, Sebastian Alberto 2016-01-27 03:04 UTC Epoch from 2008A&A...481..183M. Period from ASAS-3 data.
4 Admin, VSX 2010-01-05 04:43 UTC Update from the GCVS version of November 2009.
3 Admin, VSX 2008-12-03 03:59 UTC Primary name changed to GCVS designation [2008IBVS.5863....1K]
2 Admin, VSX 2007-03-23 19:55 UTC Update from [2005IBVS.5630....1O].
1 Admin, VSX 2005-12-18 01:33 UTC Initial database population.

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