[AZ-Observing] Re: NGC 2362 and NGC 2527

Bill's recommending of NGC2362 to me at Sentinel sent me on a tour of
the area and within a few degrees I picked up a string of remarkable
objects after spending an appreciable amount of time ogling the cluster
(Lorenzin 1000+ calls it "STRIKING!").

Three degrees north is NGC2367, another open cluster, this one
wedge-shaped with an embedded tight double. Across the border in Puppis
and clustered around M93 is NGC2467, an arrowhead-shaped open cluster,
this one embedding a shining oval nebula with a central star. No not a
planetary, a bright nebula, Sh2-11.`For the planetary move 1 deg S and 1
deg W to concentrated open cluster NGC2453 and off the SW edge, NGC2452,
a small 12th mag ringed structure.  Mel 72 and Mel 71 are two OCs, one a
triangle and one a misty star-filled pentagram. Finishing up the tour is
OC NGC2396, double-lobed (the Eyeglasses Cluster?) and NGC2414, a sparse
cluster but again surrounding a bright star.

The question is what is Sh2-311 referring to? Uranometria says 'Sh'
means the Sher catalog (Intro-table 2 in Vol I and table 3 in the field
guide), Megastar says it means Sharpless Bright Nebulae catalog, and the
Lorenzin says no, neither, NGC2467 is a Diff Neb and the OC is Haffner
18!

Jack


>
> NGC 2362 (http://members.aol.com/billferris/n2362.html )
> This is quite simply one of the most striking star clusters in the
winter
> sky. It is also among the most fascinating. Centered within the
cluster,
> although not necessarily a member, is 4.4 magnitude Tau Canis Majoris.
> Hipparcos photometry revealed this wintry beacon to be not one but
three
> stars. A visual double consists of two O-type stars separated by 0.151
> arcsecond. The brightest member of this binary system is, itself, a
massive
> binary with a period of just one day. Tau Canis Majoris is composed of
the
> longest period spectroscopic binary and the shortest period eclipsing
binary
> known.
>

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