[vsnet-id 419] NSV5602 is a high proper motion M4 dwarf.

["Mati Morel" <morel@ozemail.com.au>]

            Recently one of our Australian observers, Colin Bembrick (NSW),
took a CCD image of the field of NSV 5602. He reports that it was difficult
to identify the field, compared to a chart printed from Guide7, as NSV 5602
was missing, and also 2 or 3 nearby GSC stars were often missing from rather
old photos of the region. I have looked into this puzzle, and it turns out
that NSV 5602 = HIP 60559 = GL 465 = LHS 45.   Its high pm of -2.3"/year in
dec, and +0.077s/year in RA carries it southwards and slightly E fairly
rapidly.  Some positions, taken at different epochs are as follows: All
refer to equinox J2000.

1954 Mar 07  :  12h24m48.98s -182'46.6"     USNO-A2.0 .Close to original
NSV position.
1979 June 15                 50.82          13 45.3      GSC6105.945
1984 Mar 06                 51.20          13 56.6      GSC6105.453
2001 Mar 26                 52.60          14 35.1      HIP 60559 =
GSC6105.1620,  correct at current date.

All four positions refer to the same star. The three GSC objects are
displayed simultaneously by Guide7, which can result in confusion.   NSV
5602 lies about 1 degree east of TV Corvi = Tombaugh's star.

HIP 60559.  Mag:  11.28V,  B-V +1.57. Spectrum = M4.

Cheers,
Mati Morel
+++++++++++++++++++++++++++++++++++++++
Morel Astrographics
*Charts* Variable Star Studies* Specialized Atlases*
morel@ozemail.com.au
Web: http://vsnet.ozemail.com.au/~morel

********************************************

VSNET Home Page

Return to Daisaku Nogami

---

vsnet-adm@kusastro.kyoto-u.ac.jp