Dátum: 1999. július 15., 7:15
Feladó: Kereszty Zsolt --
Tárgy: Nova Aquilae 1999
Kedves olvasok es eszlelok!
Uj novat talaltak a Sas-ban, reszletek az alabbiakban olvashatok:
NOVA AQUILAE 1999
S. Nakano, Sumoto, Japan, reports the discovery by Akihiko
Tago, Tsuyama, of an apparent nova (mag 8.8) on two TMax-400 films
taken on July 13.558, 13.560, 13.565, and 13.567 UT with a 55-mm
f/3 camera lens. Tago places the object at R.A. = 19h07m40s, Decl.
= +12o32'.2 (equinox 2000.0), and he notes that nothing is visible
at this location on his films of July 5 and 9 (limiting mag 11 and
10.5, respectively). On a film taken on July 14.5, Tago derived
mag about 8.9 for the star. Nakano also reports the following
position from a CCD image obtained by A. Nakamura, Kuma Kogen, on
July 14.513: R.A. = 19h07m36s.90, Decl. = +12o31'26".2.
The closest star on the Digital Sky Survey is one of mag about 18
located about 4" northeast of Nakamura's position; a red star (R =
16.4) located 8" southwest of Nakamura's position is listed in the
USNO A1.0 catalogue.
K. Ayani and T. Kawabata, Bisei Astronomical Observatory
(BAO), Okayama, report: "We obtained a low-resolution spectrum
(range 470-680 nm) of Tago's suspected nova on July 14.6 UT with
the BAO 1.01-m telescope. Strong, broad H-alpha and H-beta lines
are visible. The H-alpha line has FWHM about 3400 km/s and
equivalent width about 50 nm."