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Name
  V1309 Sco  
AAVSO UID
000-BFT-812 (346 observations)  
Constellation
Scorpius Sequence
J2000.0
17 57 32.94 -30 43 10.0  (269.38725 -30.71944) Search nearby
B1950.0 17 54 19.52 -30 42 52.2
Galactic coord. 359.785 -3.135
Other names

(Internal only)
ASASSN-V J175732.94-304310.0 Nova Sco 2008  
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Variability type
V838MON
Spectral type M3/7III:
Mag. range
7.9 - 20.4: V
Discoverer K. Nishiyama, F. Kabashima; Y. Sakurai; Guoyou Sun, Xing Gao
Epoch
06 Sep 2008 (HJD 2454716)
Outburst 2008
Period --
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto Range in Ic= 6.8 - 17.0. Spectrum evolved from F to a late M-type red giant.
2 2010arXiv1012.0163T The nova progenitor was a contact binary with a period of 1.4d. The rise to maximum took 6 months. Similar to V838 Mon.
3 Templeton, Matthew Possible nova in Scorpius -- see vsnet-alert 10488 (Kato), 10490 (Guido et al). Coordinates from Guido et al.
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References
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1 IAU Circular #8972 --
2 O. Pejcha, 2013, arXiv:1307.4088 [astro-ph.SR] 2013arXiv1307.4088P
3 Tylenda, R., et al., 2011, V1309 Scorpii: merger of a contact binary 2011A&A...528A.114T
4 R. Tylenda et al., 2010, arXiv:1012.0163v1 [astro-ph.SR] 2010arXiv1012.0163T
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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 = 13.28H = 12.37K = 12.10J - K = 1.18
AllWISE W1 = 8.80W2 = 6.04W3 = 2.73W4 = 1.15W1 - W2 = 2.76W3 - W4 = 1.58
Images
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Supporting Documents
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Revision History
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5 Otero, Sebastian Alberto 2012-07-07 22:45 UTC Maximum magnitude from ASAS-3 and AAVSO data. Type, spectral type and minimum magnitude from 2011A&A...528A.114T.
4 Admin, VSX 2010-12-04 04:49 UTC Update from [2010arXiv1012.0163T].
3 Admin, VSX 2010-01-05 04:43 UTC Update from the GCVS version of November 2009.
2 Templeton, Matthew 2008-09-07 00:59 UTC Announced as a classical nova in IAU Circular 8972. Assigned the name V1309 Sco (announced in same).
1 Templeton, Matthew 2008-09-03 21:27 UTC Initial submission.

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