Author Topic: Strange astronomical things...  (Read 12922 times)

planetaryscience

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Re: Strange astronomical things...
« Reply #75 on: June 20, 2014, 03:04:10 pm »
Always weirder !!! Here is a NGC object wich is a single star !!! Not a galaxy, a nebula... Nor even a binary star... It's just epsilon Ori...
1237646645692137507  NGC 1990
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While often confused with Epsilon Orionis, This is actually NGC 1990:
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Are you sure ? Look at this..

NED has known to be incorrect, and often guesses at things it's not sure of. And, unfortunately for them, they often turn out to be wrong :P. For instance, an NED search for NGC 67 turns up the nearby galaxy NGC 67a.
I like to find asteroids and galaxy mergers- but all galaxies are still fine to me.

AlexandredOr

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Re: Strange astronomical things...
« Reply #76 on: June 20, 2014, 03:08:24 pm »
And so this thread is useful  ;D ;D ;D ;)

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AlexandredOr

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Re: Strange astronomical things...
« Reply #77 on: June 20, 2014, 04:05:46 pm »
New strange puzzle..
1237674369680933046  IC 2345


IC 2345 is a basic and common single star   ??? ???

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AlexandredOr

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Re: Strange astronomical things...
« Reply #78 on: June 21, 2014, 11:51:19 am »
1237646646761816281  IC 2109


Yes, the insignificant star at the target is a IC object...
Weird. And strange....

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AlexandredOr

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Re: Strange astronomical things...
« Reply #79 on: June 21, 2014, 11:59:50 am »
1237678790808174647  NGC 0018


Finally, strange astronomical things are not so rare  ::)

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NGC3314

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Re: Strange astronomical things...
« Reply #80 on: June 21, 2014, 07:36:03 pm »
NED has known to be incorrect, and often guesses at things it's not sure of. And, unfortunately for them, they often turn out to be wrong :P. For instance, an NED search for NGC 67 turns up the nearby galaxy NGC 67a.

It's not like NED is some great artificial intelligence, it's a couple of people managing an enormous database which contains everything they can get their hands on published by astronomers dealing with galaxies and quasars. Their sum can hardly be better than what we give them, and in fact they do remarkably well at finding all of our typos and numerical transpositions. Think of NED as a guide to the accumulated information published by astronomers, with only basic consistency checks. They specifically do not want to adjudicate between different published galaxy classifications, for example.

(Which is a subtle way of saying - don't believe anything weird in NED without checking original sources, and don't crow about anything that looks bad unless you have sent a constructive email with documentation to NED. They are in fact human beings - I've met some - and will appreciate both parts. I also know that NED personnel are not unknown to check the GZ forum).