[vsnet-discovery-nova 162] V4744 Sgr precise astrometry

[Hitoshi YAMAOKA <yamaoka@rc.kyushu-u.ac.jp>]

V4744 Sgr precise astrometry

  I have performed a precise astrometry of V4744 Sgr with four
images taken by S. Kiyota and one image taken by P. Nelson.  In 
UCAC1 reference frame (60-70 stars), it gives:

17h47m21s.724 +/- 0s.003,  -23o28'22".79 +/- 0".06 .

# Summary of previous reported position:
# Tabor    21s.74            23".1          (IAUC 8001)
# Liller   21s.63 +/- 0s.05  21".4 +/- 0".4 (IAUC 8001,
#					vsnet-campaign-nova 1117)
# Nelson   21s.71            23".4   (GSC coordinate, residual 0".32)
#					(vsnet-campaign-nova 1133)

  Even in the deepest DSS image (limiting Rmag about 21.0), no object
can be found within 5" of this position.

Sincerely Yours,
Hitoshi Yamaoka, Kyushu Univ., Japan
yamaoka@rc.kyushu-u.ac.jp

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