After checking, just artifact!
Le 24/12/2024 ¨¤ 12:56, Francois KUGEL
via groups.io a ¨¦crit?:
Hello Sam ,
My observations from Nov. 04 and Dec. 12 seem to show to jets
in PA 200 and 340¡ã?
but maybe it is just artefacts :
Best regards,
Francois
Le 24/12/2024 ¨¤ 00:12,
planetaryscience via groups.io a ¨¦crit?:
Hi all,
I wanted to invite some
discussion on this topic I've been wondering about for a
bit: I don't think C/2024 M1 is actually a comet.
C/2024 M1 (ATLAS) was
published as a comet back in July, with four reports of
cometary activity from X07 (H. Sato, T. Yoshimoto, and T.
Prystavski) and W88 (N. Paul) - ~0.25 and ~0.5-m telescopes.
Meanwhile, my own simultaneous observations from X09 (0.43m)
did not detect any sign of coma or tail even on extended
exposures far outdoing the 15x50s (750s) exposure of N.
Paul, the longest stack searching for cometary activity
among the positives reported.
Similarly, no images that
I've seen published by Seiichi Yoshida on aerith.net show
even slight hints of coma or tail, even with significant SNR
on the body. The 'comet's light curve has followed an
asteroidal 5logr light curve from 8.6 AU from the Sun all
the way through its 1.7 AU perihelion in October, as well as
its peak magnitude of V=14 a few weeks ago.
I'm not sure what the three
itelescope and one slooh observers saw, but I think I have
to guess that they all made a mistake. Nothing I've seen
firsthand (including the attached very high-SNR
observation by a friend a few days ago) supports
these claims, and I'm considering requesting the MPC to
redesignate it as an A/ object.
~Sam
--
Francois KUGEL
Observatoire chante-perdrix
Dauban
04150 BANON - France
MPC station # A77
--
Francois KUGEL
Observatoire chante-perdrix
Dauban
04150 BANON - France
MPC station # A77