[AZ-Observing] Re: Very NEO
- From: "Wes Edens" <EDENSW@xxxxxxxxxx>
- To: <az-observing@xxxxxxxxxxxxx>, <Brian.Skiff@xxxxxxxxxx>
- Date: Thu, 02 Oct 2003 20:17:07 -0700
The BBC just picked up this story. It was flashing across the top of
the website as a "Latest" item. Here's the link to the story.
http://news.bbc.co.uk/1/hi/sci/tech/3160352.stm
Congratulations to everyone involved!
Wes Edens
>>> Brian.Skiff@xxxxxxxxxx 10/01/03 11:50PM >>>
>> list of future close approaches snipped
(but what about the recent past approaches...?
It is actually not uncommon for these objects to have a series of
fairly close approaches, then nothing for several decades, cycling
in/out over very long and morphing cycles-of-cycles-of-cycles...
1937UB, familiarly called Hermes, has been lost since the 1937
apparition
despite various attempts to recover it with new observations and on
archive plates.
Joe wrote:
>> I'd like to point out that although the distance changed only
0.0027AU
>> it is very nearly a 100% difference in the distance.
But the change in brightness was 20 magnitudes, which is 100
_million_
in linear brightness units. Again if you make a plot of solar phase
angle (or alternatively the percent illuminated as viewed from Earth),
you'll see that it started out lit up only on the "back side" from our
viewpoint, then passed nearly through opposition, bringing it to
"Full"
phase (only a few degrees phase angle).
\Brian
--
See message header for info on list archives or unsubscribing, and
please
send personal replies to the author, not the list.
--
See message header for info on list archives or unsubscribing, and please
send personal replies to the author, not the list.
Other related posts:
