NGC 2579 Cr 182 / BHe 13A, Gum 11 RA 08:22:11 Dec -36°24.0' Open
cluster/Bright nebula |
h: "a double star, surrounded with very
evident nebula which seems to belong to both stars." On a second occassion
he called it "a double star, or a star and a nebula, very close and
involving the star ... the field contains about 70 stars, of which 8 are about
9th mag. I cannot be quite positive that the neb extends beyond the large star,
or that the small one is not a mere condensation of it. However, I remain pretty
well satisfied of its investing both." His third observation was recorded
as "A nebula attached to a star 12th mag, but involving it." The final
record reads: "A double star (h4083) involved in pretty bright nebulosity,
which seems to belong to both stars; but of the two the smaller is more
nebulous; diameter 50 arcseconds; in a pretty rich patch of the milky way."
Van den Bergh and Herbst include this object
as No. 13a in their Catalogue of Southern Stars Embedded in Nebulosity
(Astronomical Journal, 1975), noting that it had a very high surface brightness
and was very prominent on the red plates. The maximum diameter on the red plate
was 1.3' whilst the blue plate measurement was 1.1'. They comment that the
nebula "looks a bit like R Mon."
Steve Coe, observing with a 13 f/5.6,
notes: This object is a cluster with nebulosity. The cluster is pretty
faint, large, irregularly round with lots of dim members. There where 21 stars
counted at 135X. The nebula is pretty bright, pretty small, elongated 2X1 in PA
90, it is brighter on the east side. The UHC filter will enhance the contrast of
the nebula. On a second occasion he noted: Pretty bright, pretty
large, pretty rich, somewhat compressed, 28 stars counted at 150X. Installing
the UHC filter brings out a faint, small round nebulosity on the south side of
this nice cluster. |