Confirmations for December 2022
Here are SOHO confirmations for October 2022.
Soho# Date/Time of Post Discoverer Tel Group Images of... ===================================================================== 4585 Dec01,22 10:47:02 H.Tan C2 Kreutz Dec01,22 4586 Dec03,22 03:05:12 Z.Yang,H.Tan C2 Kreutz Dec03,22 4587 Dec03,22 15:11:46 H.Tan C2 Kreutz Dec03,22 4588 Dec04,22 06:56:42 J.Ruan C2 Kreutz Dec04,22 4589 Dec05,22 00:14:58 Tan,Yang,Ruan C2 Kreutz Dec05,22 4590 Dec06,22 16:22:38 W.Boonplod C3,C2 Kreutz Dec06-07,22 4591 Dec08,22 11:31:08 J.Ruan C2 Kreutz Dec08,22 4592 Dec15,22 04:05:19 W.Boonplod C3,C2,C2A Kreutz Dec15-17,22 4593 Dec15,22 21:59:01 W.Boonplod C3,C2 Kreutz Dec15-16,22 4594 Dec18,22 05:38:18 J.Ruan C2 Kreutz Dec18,22 4595 Dec21,22 17:42:54 W.Boonplod C3,C2 Kreutz Dec21-23,22 4596 Dec21,22 21:41:21 W.Boonplod C3,C2 Kreutz Dec22,22 4597 Dec23,22 23:03:51 W.Boonplod C2 Kreutz Dec24,22 4598 Jan01,23 20:57:41 J.Ruan C2 Kreutz Dec31,22
I'm gradually getting caught up here. I don't think January was too busy, so I should be able to get those done this week.
We ended the year with 205 comet discoveries (not including any that might be in my archives list). Once again, this is remarkably consistent with previous years:
2010: 215 2011: 225 2012: 236 2013: 228 2014: 201 2015: 228 2016: 180 2017: 235 2018: 215 2019: 209 2020: 209 2021: 204 2022: 205
It always amazes me how consistent this is every year -- except 2016... that year was very odd. Congratulations - and THANK YOU - to everyone who contributed in 2022!
I still do not know how we are going to handle the various 96P fragment claims. I'm sure you're all familiar with the Hubble images of comet 73P. I suspect that if we could look closely at these 96P fragments, we would see something just like that. So the question becomes "at what point does a fragment get an individual designation?". There's no clear answer. Of course with SOHO Kreutz we have always said that any object that is clearly detached somehow from another object is to be classed as a separate fragment. But I am sure there are times in the past when I should have awarded a fragment and did not, and likewise times when I did award a fragment but should not have. It's all imprecise. So I think all we can do here with 96P is apply those same rules. If a clear, distinct "object" is visible for at least five or six C3 images, then it will be declared a fragment. It is still possible that we will be able to confidently connect some of the 2023 fragments with earlier ones, so we will make those attempts. This is uncharted territory, so please be patient/tolerant on this process!
While on the subject of 96P, I have placed a large (272MB) zip file of png files here. These are the individual png files that I processed to make the movie I posted last week.
As always, please email me with questions, comments, etc.