[vsnet-alert 7020] (fwd) More on IM Nor

[Taichi Kato <tkato@kusastro.kyoto-u.ac.jp>]

(fwd) More on IM Nor

Date: Sat, 12 Jan 2002 13:02:13 -0500
From: "W.Liller" <wliller@compuserve.com>
Subject: More on IM Nor

Hola again -

Last night, Jan.12.330 UT, using a CCD and a 20cm f/1.5 Schmidt camera, I
measured the position of the recurrent nova to be (2000) RA = 15h 39m
26.61s +/- 0.18s, Dec. -52d 19' 18.6" +/- 0.5".  This agrees moderately
well with the position for IM Normae measured from a Harvard MC plate: end
figures: 26.26s, 21.4" (See Duerbeck, A Reference Catalogue and Atlas of
Galactic Novae.  Reidel, 1987).  


The magnitude, measured from the same CCD frame and with a minus-red-and-IR
filter -- I call it V(bv) = was 8.13 +/- 0.03.  The comparison stars used
were GSC 8308 511 and 8308 651.

A low-dispersion objective prism spectrum, taken Jan. 12.351 UT, shows
H-alpha to be very strong and relatively narrow with FWHM = 950 km/sec
+/-50.  Other lines of the Balmer Series, the Fe II multiplets 42 and 74,
and O I at 777.1 nm are also clearly present.

All the best to all,   Bill Liller

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