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Details for Revision 3
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Name
  BT Ser  
AAVSO UID
000-BFL-947 (46 observations)  
Constellation
Serpens Sequence
J2000.0
18 38 49.66 +04 50 00.1  (279.70692 +4.83336) Search nearby
B1950.0 18 36 21.48 +04 47 16.4
Galactic coord. 35.809 +5.002
Other names

(Internal only)
AN 270.1936 IOMC 0455000047  
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Variability type
RRAB
Spectral type --
Mag. range
12.91 - 13.57 V
Discoverer --
Epoch
25 Sep 1948 (HJD 2432820.307) Ephemeris
Outburst --
Period 0.72381695 d  (17.371607 h)
Rise/eclipse dur. 34%  (5.9063 h)
Remarks
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1 GCVS Team In the region of the open cluster IC 4756.
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References
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1 G. Maintz, 2012, BAV Rundbrief 2012-4, 258 2012BAVSR..61..258M
2 J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info)
2012arXiv1210.0821A
3 N.E.Kurochkin, Perem. Zvezdy 11, N6, 462, 1958. 1957PZ.....11..462K
4 MVS N263, 1957. --
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Supporting Documents
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Stellar Association Membership
 IC 4756 Open Cluster 2012A&A...548A..97Z
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
4 Admin, VSX 2012-12-25 16:21 UTC Update from [2012BAVSR..61..258M].
3 Admin, VSX 2012-10-05 01:01 UTC Update from [2012arXiv1210.0821A].
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.