This image is available in Postscript , and GIF formats.
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This is the Keck R-band image from UT Dec 30.8, field size = 218 arcsec, centered on the position of the X-ray source 1SAX J1257.3+5924. The center coordinates (J2000) are:
RA = 12 h 57 m 15.0 s
DEC = +59 d 24 ' 02 "
The limiting magnitude is R ~ 25.5.
This image is available in
Postscript ,
and
GIF formats.
This is a zoom-in on the same image, field size = 109 arcsec, centered on the position of a detection claimed by Castro-Tirado et al. (IAUC 6800). The center coordinates (J2000) are:
RA = 12 h 57 m 10.6 s
DEC = +59 d 24 ' 43 "
This image is available in
Postscript ,
and
GIF formats.
The marked objects have positions (good to 0.4 arcsec, on the basis of USNO A1.0 catalog) and magnitudes (good to 0.2-0.5? mag zero-point, on the basis of APM catalog):
Star A: RA = 12 h 57 m 13.68 s, DEC = +59 h 23 ' 36.7 ", R = 19.1 mag
Star B: RA = 12 h 57 m 11.15 s, DEC = +59 h 24 ' 45.4 ", R = 22.1 mag
Galaxy C: RA = 12 h 57 m 08.74 s, DEC = +59 h 24 ' 35.7 ", R = 20.6 mag
Star D: RA = 12 h 57 m 04.95 s, DEC = +59 h 24 ' 39.2 ", R = 19.4 mag
Galaxy E: RA = 12 h 57 m 08.22 s, DEC = +59 h 24 ' 52.4 ", R = 21.4 mag
Galaxy F: RA = 12 h 57 m 08.30 s, DEC = +59 h 25 ' 00.5 ", R = 21.25 mag
D is the comparison star mentioned by Galama et al. (GCN 31Dec97), and galaxy C is almost certainly the object they propose as the possible identification of the claimed detection by Castro-Tirado et al.
This is the DSS image, 6 arcmin square:
