[time-nuts] telling time without a clock
albertson.chris at gmail.com
Thu Jan 26 23:42:00 EST 2012
"simbad" is a catalog of catalogs with a built in web based search
engine. It is pretty much what "everyone" uses to search. You can
define a shape and ask for all objects that meet some criteria that
are within that shape. Other software can plot the result for you as
a chart If it is not in Simbad you have likely discovered something
On Thu, Jan 26, 2012 at 7:09 PM, J. Forster <jfor at quikus.com> wrote:
> It's old, but how about the SAO Atlas & catalog. It goes to something like
> 7th Mag, so there are lots to pick from.
>> On 1/26/12 2:55 PM, Jim Palfreyman wrote:
>>> As a reasonably experienced occultation observer (and the very reason I
>>> into being a time-nut - so I could time these observations), the main
>>> problem is that the number of binocular-observable occultations is
>>> quite rare. When the star appears or disappears behind the bright limb
>>> is actually hard to see - even if the star is very bright. When the moon
>>> nearly full, even disappearances behind the dark limb are hard.
>> Yes, that's what I observed when I was trying it a while ago..
>>> So ideally you want bright star disappearences on a dark limb with a
>>> before first quarter. (Last quarter as well - but then it's a
>>> and you don't quite know where to look).
>> that would sort of limit you to 1 week out of 4. But better than
>> nothing, for a technique that requires no outside assistance.
>>> This limits the number of bright stars quite drastically. And then you
>> Yeah, that is something I don't have a feel for.. How many stars are
>> candidates? I assume you could get a moon RA/declination list, and then
>> run that against the star list.
>> This is one of those things that I was hoping there's probably
>> someone who has a program that can do the search trivially.
>> I have a moon ephemeris, but I haven't found a convenient star catalog
>> (something in ASCII that has ID, RA, Dec, Mag would be nice)
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