Return to Home Page
Here is my attempt at constructing a faint sequence for V4745 Sgr.
It picks up from 10.5v, the accepted limit of reliable Tycho-2 mags. This
is a best ateempt using mainly UCAC1 mags., but observers are encouraged to
check it out and suggest refinements.
Star # RA 2000 DEC2000 Mag.v GSC
============================================
1 18h40m50.96s -33 28'37.0" 11.3 A 7411-2482
2 18 40 23.53 -33 29 41.3 11.8 A 7411-1645
3 18 40 07.16 -33 28 08.1 12.8 U 7411-1591
4 18 40 04.10 -33 27 34.5 13.2 U
5 18 39 53.43 -33 27 34.0 13.2 U
6 18 40 14.48 -33 31 02.6 13.5 U 7411-0248
7 18 40 10.66 -33 28 18.9 13.6 U
8 18 40 02.82 -33 27 08.2 14.2 U
A = USNO-A2
U = UCAC1
No. 2 is rather red.
This sequence seems to match the appearance of the field on DSS First Gen
image fairly well.
A sequence based on USNO-A2.0 derived visual mags. doesn't match up nearly
as well.
Incidentally the Non-star GSC7411-6255 (11.5) does not seem to exist.
Nothing visible on DSS.
A visual check of this sequence at the telescope is highly desirable.
Cheers,
Mati
morel@ozemail.com.au
Return to the Powerful Daisaku Nogami
vsnet-adm@kusastro.kyoto-u.ac.jp
