Quote:
Originally Posted by theodog
From a post of mine on 23-05-2008;
http://www.iceinspace.com.au/forum/s...ad.php?t=32167
"Two of the smaller members
Hi All,
Taken early last night.
Animation 4x10min +dark 12"
Upper right 1998 FO72 Mag 18.5
Lower middle 1994 PS10 Mag 20
*The Gif compression degraded the quality.* "
The images are 600 sec, and the asteroid in lower centre was mag 20.
Taken using a ST7e on a 12" GSO Newt on a Losmandy G11.
1 hour would be interesting  . |
Wow, that is remarkable.
My skies are rubbish....but you can only work with what you've got.
That said I've found predicted minor planet magnitude estimates to be inaccurate, often way brighter (or dimmer) than the measured reality.
Seems I've also sold myself a little short, the posted image actually reached Mag 20 comfortably....but no way could I do that in 10 minutes at my location.