Возможная Новая в Скорпионе 2010 (N Sco 2010)
Добавлено: 23 фев 2010, 17:09
Очередная Новая в Скорпионе от японских любителей!
Яркость около 10m, но очень южная, -37 градусов.
Сообщение AAVSO:
AAVSO Special Notice #196
Possible Nova in Scorpius - N Sco 2010
February 23, 2010
http://www.aavso.org/publications/speci ... /196.shtml
Яркость около 10m, но очень южная, -37 градусов.
Сообщение AAVSO:
AAVSO Special Notice #196
Possible Nova in Scorpius - N Sco 2010
February 23, 2010
Central Bureau for Astronomical Telegrams CBET 2183 (Daniel W. E. Green,
ed.) announces the discovery by Koichi Nishiyama, Kurume, Fukuoka-ken,
Japan; and Fujio Kabashima, Miyaki-cho, Saga-ken, Japan, of a possible
nova in Scorpius at magnitude 10.5 on two 40-s unfiltered CCD frames
(limiting magnitude 12.7) taken around Feb. 20.857 UT. They confirmed
the new object at magnitude 10.3 on unfiltered CCD frames (limiting
magnitude 17.4-17.6) taken around Feb. 21.832 and magnitude 10.7 on
Feb. 22.846 from which they measured the following precise position:
R.A. = 17:06:07.53, Decl. = -37:14:27.4 +/- 0.2" (equinox 2000.0)
Nothing was visible on survey frames taken on 2009 Sept. 18.425 down to
13.6 and Oct. 3.414 down to 12.3, or on a Digitized Sky Survey plate
from 1997 Apr. 2.8 down to red mag 18.0.
Following posting on the Central Bureau's unconfirmed-objects webpage,
other observers have reported observations of the new variable, including
R. Kaufman, Bright, Victoria, Australia, Feb. 22.594, unfiltered
green-channel magnitude 11.4; S. Kiyota, Tsukuba, Japan (Global-rent-a-scope
instrument at Moorook, South Australia), position end figures 07.51s, 26.9",
Feb. 22.701, V = 12.03; 22.702, B = 13.09; 22.703, R_c = 10.70;
22.705, I_c = 9.65; E. Guido and G. Sostero (GRAS instrument at Moorook),
position end figures 07.50s, 27.7", Feb. 22.8, unfiltered CCD magnitude 10.1;
an animation showing their image with respect to an archival DSS plate is
posted at website URL http://bit.ly/9wAoFN.
Finder charts for N Sco 2010 may be plotted by entering the
coordinates above into VSP: http://www.aavso.org/observing/charts/vsp/
Please report observations to the AAVSO International Database as
N SCO 2010, VSX J170607.5-371427, or AUID 000-BJT-504; N SCO 2010
is preferred.
Good observing!
Elizabeth O. Waagen, Senior Technical Assistant
http://www.aavso.org/publications/speci ... /196.shtml