Re: [APML] Object Identification Challange

["Glenn Ray" <glennlray@mail.ev1.net>]

Good resource and suggestion, Keith.  Based on Jay's message and 
data shown in the animated gif, I plugged in the following numbers 
in the Minor Planet checker:

Date:  2005 02 27.17 UT (8 hours ahead of the first image, 
~2015PST)
Center of search:  05 30 20 RA, -07 10 00 Dec (just above SAO 
132192)
Search diameter:  120 arcminutes (2 deg.)

It found two minor planets, 2000 SF178 and 2002 HL13.  However, 
neither one had near the magnitude (19 and 18.8, resp.) nor motion 
(about 39"/hr each) and that the photographed object did.

That object covered over 2 degrees in 10 minutes; had to be pretty 
close.


---------- Original Message ----------------------------------
From: "Keith Geary" <keithg1@eircom.net>
Reply-To: Discussion of Film Astrophotography <astro-
photo@seds.org>
Date: Tue, 15 Mar 2005 20:08:30 -0000

>Jay, What about this for a try? It's a check for minor planets 
which those
>hunting supernova can use, it's maybe worth a try if you know the
>coordinates. Good Luck
>
>http://scully.harvard.edu/~cgi/CheckSN
>
>Keith..
>----- Original Message -----
>From: "Jay E. Potts" <jpotts@americanfocus.com>
>To: "'Discussion of Film Astrophotography'" <astro-photo@seds.org>
>Sent: Monday, March 14, 2005 8:12 PM
>Subject: [APML] Object Identification Challange
>
>
>> A friend, who is just starting to learn the basics of 
astrophotography,
>presented three
>> images last week at one of our Astrophoto SIG meetings. The 
images
>revealed a moving
>> object in the constellation Orion during the evening of Feb 
26th 2005.
>Approx. Lat 47D-10M
>> N, 120D-51M W (Cle Elum, WA).
>>
>> She was taking some quick piggy back shots using a 50mm lens, 
but was
>using an alt-azm
>> mount so exposure length was limited and field rotation is 
significant.
>>
>> In any event, she captured an object moving roughly from the 
direction of
>the sun past the
>> earth at a rate of speed that suggests perhaps it was a near 
earth
>asteroid.
>>
>> The link below shows a greatly cropped three frame animation 
with exposure
>lengths between
>> 2 and 3 minutes. The object clearly is moving fast, and 
changing in
>brightness quickly.
>>
>> Because resolution is poor, I've had no luck getting an 
imagelink in
>TheSky to work, and I
>> don't think PinPoint would have a chance at extracting decent 
astrometric
>measurements. A
>> quick search in TheSky does not show any minor planets in the 
area that
>are remotely this
>> bright. (Most are between 18-20th mag).
>>
>> So, I post this to see if anyone has an idea how to determine 
if this is a
>known object, a
>> new object, or can suggest a way to get at least a rough 
astrometric
>measurement.
>>
>> Sort'of an interesting challenge. <g>
>>
>> 
http://www.whirlpoolgalaxy.com/temp/maxine_nagel_unknown123_labels.
gif
>>
>> ~ Jay E. Potts
>> http://www.whirlpoolgalaxy.com (Astrophotography)
>> http://www.americanfocus.com (Landscapes & Wildlife)
>>
>>
>>
>>
>>
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>>
>
>
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