Ben Hudgens Jan 17, 2005
----- Original Message -----
From: Bill J Gray
To: guide-user@yahoogroups.com
Sent: Friday, December 10, 2004 9:16 AM
Subject: Re: [guide-user] Comet P/Harrington-Wilson?
Hi Truman,
This object is also known as D/1952 B1 (Harrington-Wilson). The 'D'
indicates a deleted or disappeared object. Only seven observations were
made of this object, between 1952 Jan. 30 to 1952 Feb. 25, so it's
anyone's guess as to where it is now or what its magnitude might be.
The fact that it wasn't picked up at following oppositions indicates that
it might be really faint most of the time.
I see that it's coming around to perihelion, though, and the nominal
orbit indicates that it'll be within an AU of us, passably well-positioned
for recovery. The last time it came by (it has a six-year period), the
big asteroid surveys weren't doing much. They could catch it on this pass,
almost any day now.
There's an updated, perturbed orbit for the current opposition at
http://www.oaa.gr.jp/~oaacs/nk/nk839.htm
You can go to Extras... Edit Comet Data, select "New comet", and enter
elements from that page. Or you can save this file to your hard drive:
http://www.projectpluto.com/hw.txt
...then go to Extras... Add MPC Comets/Asteroids, and click on the last
line shown (which also says "Add MPC Comets/Asteroids"). Select the 'hw.txt'
file, and Guide will import the recent elements for this object.
-- Bill
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