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View Full Version here: : Mislablelled NGC numbers for Messier Objects


Campus Dweller
28-05-2009, 09:54 PM
Just found a neat site called The Messier Objects.
http://astro.nineplanets.org/dssm/messier.html
I was surprised on scrolling through the list, however, that M45 -the Pleiades - is given an NGC number (1432). Now as a amateur astronomer of some years experience, I am pretty sure that M45 never was assigned as an NGC object. A little research elsewhere told me that NGC 1432 is the nebulosity associated with the Pleiades, which takes a large telescope to observe visually, which is certainly different to the large naked eye star cluster.
So I then scrolled up to M24, which I also remember being otherwise unassigned, only to see it listed also as NGC 6603, which I thought was an open cluster within the M24 star cloud.

A little thing, sure, but just a reminder that a not everything on the 'net is necessarily accurate.

Also, it was an excuse for me to get back on to the forum, as I haven't posted anything for more than a year:rolleyes:

Cheers
Drew

Jen
28-05-2009, 10:07 PM
:lol: yeah well i have trouble trying to remember the numbers at the best of times :lol::screwy: there is that many out there :doh:
:whistle::whistle:

bloodhound31
28-05-2009, 11:28 PM
Well then I guess its a very hearty WELCOME BACK Drew!

Baz.

Campus Dweller
29-05-2009, 06:33 AM
Thanks for rthe welcome back, Baz, and for your reply, Jen. I notice you've become one of the big contributors whileI've been gone. This hobby of our certainly is one of numbers:eyepop:

I'll make an effort to keep up with the forums. For now, however: Io, Io, its off to work I go.
Drew

Jen
29-05-2009, 05:36 PM
:lol::lol: :hi::hi: Hi Drew yeah well someone had to keep ya seat warm for ya while you were gone hehe yep im pretty cosy in here now :D:P:lol: welcome back :thumbsup: