Hello guide users,

I encountered the following problem:
while doing astrometry of comets (with Astrometrica) on my very first ccd
frames (from january 1995) I wanted to display comet C/1994T1 (Machholz) which
also had the designation 1994r (old style). I set the date and time to 30 Jan
1995 18:09 UT with limiting magnitude for comets set to 20mag.

But only comet Nakamura-Nishimura-Machholz (1994m) and P/Machholz 2 (1994o)
(141P)showes up in the find comet dialog (when searching for "Machholz" after
using the edit function). After setting comets to "on", comet 1994r is shown
with a 3.5 deg tail but with mag 99.0! Visually the comet was around 13th mag
at that time.

Can someone explain this discrepancy?

Clear skies
BerndBernd Brinkmann
Sternwarte Herne, MPC code A18

http://www.sternwarte-herne.de
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