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孙国佑 XM08AG = V1309 Sco 亮红新星

最新研究证实,这是一颗亮红新星

2008年9月2日,孙国佑在当晚的NSP搜索中发现一个目标并上报给MPC,并确认为新星。

POSSIBLE NOVA IN Scorpii
Guoyou Sun(Qufu, Shandong, China) and Xing Gao (Urumqi, Xinjiang, China),reports the discovery of a possible nova (mag approximately 10.5) on several 60-s survey images (limiting mag about 13.5)taken by Xing Gao in Xingming Observation Nova Survay(C42) around Sep.02.6095 UT and Sep.02.6303 (2pass) using a Canon EOS 350D Camera (+135-mm f/2 lens,ISO 400), the new object approximately located at R.A. =17h57m32s Decl.= -30°43’04” (equinox 2000.0), Nothing was visible at this location on images taken on Aug 31,Aug 30,Aug 21,Aug 20,Aug 14.

http://www.xjltp.com/XM08AG.htm

http://www.aavso.org/publications/alerts/alert383.shtml

http://www.astronomy.com.cn/bbs/thread-96506-1-1.html

Nova Scorpii 2008
September 6, 2008

Event: Nova in Scorpius

Discovered By: K. Nishiyama (Kurume, Fukuoka-ken, Japan) and F. Kabashima
(Miyaki-cho, Saga-ken, Japan); Y. Sakurai (Mito, Ibaraki-ken,
Japan); and Guoyou Sun (Qufu, Shandong, China) and Xing Gao
(Urumqi, Xinjiang, China)

Discovery Date: 2008 September 02.4594 UTC (JD 2454711.9594)

Discovery Magnitude: m = 9.5 (unfiltered)

Position: RA = 17h 57m 32.93s , Dec = -30d 43m 10.1s (from Nishiyama
and Kabashima)

Charts: Finder charts for this object may be plotted by entering the
coordinates above into VSP: http://www.aavso.org/observing/charts/vsp/
The sequence was prepared by M. Morel.

Notes: This object was announced as a nova in IAU Circular 8972 (Daniel
W.E. Green, editor).  This is a classical nova, as determined by
low-resolution spectra by M. Fujii (Ibara, Okayama, Japan) and H. Naito
(Nishi-Harima Astron. Obs.) on Sept 3.49 and Sept 5.47 respectively.
This object has been given the formal variable star designation
“V1309 Sco”.  Please see IAUC 8972 for complete details on discovery
and confirmation.

The following observations have been submitted to the AAVSO since the
issuance of AAVSO Special Notice #124 (2008 September 03): JD
2454713.4167, m(vis) = 9.3 (A. Amorim, Florianopolis, Brazil);
2454713.51944, m(vis) = 9.0 (L. Shotter, Uniontown, PA, United States);
2454714.03056, m(unfiltered) = 8.7 (R.J. Kaufman, Bright, Victoria,
Australia); 2454714.54167, m(vis) = 8.2 (L. Shotter); 2454714.99097,
m(unfiltered) = 8.0 (R.J. Kaufman); 2454715.5590, m(vis) = 8.4 (G.
Beltran, Cochabamba, Bolivia); and 2454715.94028, m(unfiltered) = 8.0
(R.J. Kaufman).

Thanks to all observers who have submitted observations thus far.
Continued observations are strongly encouraged throughout this nova
outburst.  Please submit data to the AAVSO using the name “V1309 SCO”,
or the AUID “000-BFT-812”.  The VSX designation “VSX J175732.9-304310”
may also be used.

Congratulations to the discoverers!

Clear skies, and good observing,

Matthew Templeton
AAVSO

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