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acrosome · 09-06-2018, 04:18 PM

OK, after all of that effort I have now discovered SIMBAD. Wikipedia seems to imply that it's kept up to date regularly.

Anyone know just how trustworthy and up to date it is?

I ask because I searched for objects within parallax of 66 mas (about 14 parsecs) on SIMBAD and got 1313 objects. But when I went through XHIP, RECONS, and CTIOPI for the same radius and removed redundant entries I only ended up with 677 objects. Granted some of them are multiple systems that weren't split out, but not enough to account for that much of a difference.

Should I trust SIMBAD more? Some of it's entries are described as odd things like "Infrared source".

EDIT-- Wow. There are 207 HABCAT stars within 14pc of Sol. I'll end up shaving a lot of those off, though, since I plan on making cube-shaped sectors each about 10pc on a side. (Thus from vertex to vertex is about 14pc, which is why I'm searching that far.)

09-06-2018, 04:18 PM	#36
acrosome Join Date: Aug 2010 Location: The Land of Enchantment	Re: Stellar Mapping OK, after all of that effort I have now discovered SIMBAD. Wikipedia seems to imply that it's kept up to date regularly. Anyone know just how trustworthy and up to date it is? I ask because I searched for objects within parallax of 66 mas (about 14 parsecs) on SIMBAD and got 1313 objects. But when I went through XHIP, RECONS, and CTIOPI for the same radius and removed redundant entries I only ended up with 677 objects. Granted some of them are multiple systems that weren't split out, but not enough to account for that much of a difference. Should I trust SIMBAD more? Some of it's entries are described as odd things like "Infrared source". EDIT-- Wow. There are 207 HABCAT stars within 14pc of Sol. I'll end up shaving a lot of those off, though, since I plan on making cube-shaped sectors each about 10pc on a side. (Thus from vertex to vertex is about 14pc, which is why I'm searching that far.) __________________ I'd need to get a grant and go shoot a thousand goats to figure it out. Last edited by acrosome; 09-07-2018 at 12:16 PM.