Date   

Help with old comet report

Peter Berrett
 


Hi everyone

Could you please help me with an old comet report?

On 25 February 2021 I reported the following comet. It was never confirmed.


 

I went back and looked at the positions again and I think it has a good chance of being real. Can you please have a look at the positions and let me know what you think? If you agree that it is real then I will ask Karl to have another look at it.

Thanks

Peter Berrett


Worachate's recent non-group comet in HI-1

karlbattams
 

Hi All,

Relaying this message on behalf of Trygve, who was unable to connect to this site. Worachate's July 13 non-group comet is visible in the HI-1 data:

512 x 512 png images
(0,0) Upper left
2021-07-12
14:48:31 52,247
....
16:48:31 42,240
....
18:48:31 34,236
....
20:08:31 27,232
....
22:48:31 15,225
23:28:31 12,224

Karl


Known Comet Now Entering(C2)

Robert Pickard
 

Date: 6/20/2021
Group: Kreutz
0/0 upper left

1048 879 1016
1112 877 1002
1136 875 985


Re: Known Comet Now Entering (C2)

Robert Pickard
 

Correction:

0836 887 1008
0848 887 1001

On Sun, Jun 20, 2021, 11:22 AM Robert Pickard via groups.io <rpickard1997=gmail.com@groups.io> wrote:
Date: 6/20/2021
Group: Kreutz
0/0 upper left

877 1009
877 1001


Known Comet Now Entering (C2)

Robert Pickard
 

Date: 6/20/2021
Group: Kreutz
0/0 upper left

877 1009
877 1001


Re: Potential Kreutz-group comet 2021 June 20

Robert Pickard
 

Also I can confirm your second comet.

Ok, so im able to confirm the objects, now I just need to find one myself.

On Sun, Jun 20, 2021, 2:20 AM Worachate <worachateb@...> wrote:
Hello all,

Apparently, It may be another one.

Images: C3; 1024x1024 images.
(0,0) Upper Left.
2021-06-20
0601 601 630
0634 601 628
0642 601 627
0654 601 626
0706 601 624

if it's real, it should enter C2 around 10 UT

Regards,
Worachate Boonplod


Re: Potential Kreutz-group comet 2021 June 20

Robert Pickard
 

Ill give it a look. Also your first comet has brightened and will enter C2 before 8UT it seems, but the data stream will unfortunately end before that, so we cannot do a "known comet now entering" yet. It should be in the next image, if it gets released in time.


On Sun, Jun 20, 2021, 2:20 AM Worachate <worachateb@...> wrote:
Hello all,

Apparently, It may be another one.

Images: C3; 1024x1024 images.
(0,0) Upper Left.
2021-06-20
0601 601 630
0634 601 628
0642 601 627
0654 601 626
0706 601 624

if it's real, it should enter C2 around 10 UT

Regards,
Worachate Boonplod


Potential Kreutz-group comet 2021 June 20

Worachate
 

Hello all,

Apparently, It may be another one.

Images: C3; 1024x1024 images.
(0,0) Upper Left.
2021-06-20
0601 601 630
0634 601 628
0642 601 627
0654 601 626
0706 601 624

if it's real, it should enter C2 around 10 UT

Regards,
Worachate Boonplod


Re: Potential Kreutz-group comet 2021 June 19

Robert Pickard
 

Thats cool, Ill be waiting for it to arrive. 


On Sat, Jun 19, 2021, 5:49 PM Worachate <worachateb@...> wrote:
Thank you Robert,

I expect it to enter C2 in June 20 around 7-8 UT.

Worachate


Re: Potential Kreutz-group comet 2021 June 19

Worachate
 

Thank you Robert,

I expect it to enter C2 in June 20 around 7-8 UT.

Worachate


Re: Potential Kreutz-group comet 2021 June 19

Robert Pickard
 

Yeah I see now, the coordinates are for marginal brightness at best.

I can confirm this comet, congrats!





On Sat, Jun 19, 2021, 5:33 PM Worachate <worachateb@...> wrote:
It's actually faint at the moment, will be much dimmer than the brightest Kreutz that appeared earlier this month.

Worachate


Re: Potential Kreutz-group comet 2021 June 19

Worachate
 

It's actually faint at the moment, will be much dimmer than the brightest Kreutz that appeared earlier this month.

Worachate


Re: Potential Kreutz-group comet 2021 June 19

Robert Pickard
 

Greetings Worachate, I will attempt a confirmation as soon as possible. I only have C2 FITS available at the moment. Coordinates consistent, and looks to become a bright comet based on the Y-value of 680.


On Sat, Jun 19, 2021, 5:23 PM Worachate <worachateb@...> wrote:
Hello all,

I see a possible Kreutz comet in C3 here.

Images: C3; 1024x1024 images.
(0,0) Upper Left.
2021-06-19
2006 603 680
2018 603 679
2030 603 678
2042 603 677
2118 603 673
2130 603 672
2142 603 671
2154 603 669
2206 603 668

Regards,
Worachate Boonplod


Potential Kreutz-group comet 2021 June 19

Worachate
 

Hello all,

I see a possible Kreutz comet in C3 here.

Images: C3; 1024x1024 images.
(0,0) Upper Left.
2021-06-19
2006 603 680
2018 603 679
2030 603 678
2042 603 677
2118 603 673
2130 603 672
2142 603 671
2154 603 669
2206 603 668

Regards,
Worachate Boonplod


Re: Beginner questions

Cledison Marcos da Silva
 

Thank you so much, Robert.


From: SOHO@SunGrazer.groups.io <SOHO@SunGrazer.groups.io> on behalf of Robert Pickard <rpickard1997@...>
Sent: Saturday, June 5, 2021 12:33:33 PM
To: SOHO@sungrazer.groups.io <SOHO@sungrazer.groups.io>
Subject: Re: [SOHO] Beginner questions
 
Second: Comet are more likely to be found in C2 this month, but one could appear in either LASCO C2 or C3. Your best bet is in C2. 

On Sat, Jun 5, 2021, 10:30 AM Robert Pickard <rpickard1997@...> wrote:
Greetings and welcome to the project.

First: here is a link to the reprocessed image archive which updates every 6 hours or so.

NOTE: to look at C2 images, change the /c3/ part to /c2/.

On Sat, Jun 5, 2021, 9:09 AM Cledison Marcos da Silva <marcosdb2@...> wrote:
Hello everybody. My name is Cledison Marcos and I am a new comet hunter. I would like to ask a few questions if possible. If this is not the ideal place, you can delete my topic. I am able to download only C3 images in 512x512 size. Where do I find the biggest images, like 1024x1024? When I zoom in, the image loses a lot of resolution and I think this can hinder me in the hunt. The other question is: Is it suitable to search on the C2 or C3 images? I noticed that in C3comets are discovered in smaller amounts
Thanks to everyone, I hope to contribute to the project in the best way possible.
Sorry for the beginner questions.


Re: SMM comet analysis

Peter Berrett
 

On 7/06/2021 10:03 am, Peter Berrett wrote:
ert Mcnaught (82 comets).



Re: SMM comet analysis

Alan Watson
 

Gidday Robert, 
Appologies for getting your name wrong in previous mail. 

Try looking at the BAA comet page, it has historical log files going back a long ways. Also Karl has the info on the new Web site. Some spreadsheet work required. 

Kind regards Alan Watson 

On Mon, 7 Jun. 2021, 10:01 am Robert Pickard, <rpickard1997@...> wrote:
Indeed so, I know faint overlooked comets from other groups can be missed, but I had no idea it was *that* many and even more still to be found in archival images. 

Do you have any counts for the United States regarding comets found in spacecraft imagery?

On Sun, Jun 6, 2021, 6:55 PM Alan Watson <c2009a1@...> wrote:
Love the follow up work on these old image data sets.
Good work Richard and Peter. 

On an interesting comet counting note. Peter may now be the number 1 comet hunter in Australia. Reworking the old data is paying off. 👍🇦🇺

Kind regards Alan Watson 

On Mon, 7 Jun. 2021, 4:03 am Robert Pickard, <rpickard1997@...> wrote:
As Karl said the orbit of my SMM comet was "vaguely Kreutz-like", I decided to finally put my comet to the test. 

I realigned the SMM images with my SOHO LASCO C2 template and stacked them together to match. Ironically, the SMM sun disk is the same size as C2, so no resizing was needed.
I did need to rotate the SMM image 24° to make solar north "up". 

The results: With the observation on July 15, 1989, its dead center of my July C2 Kreutz path. I initially thought it was a Kreutz ii comet, but here its obviously a regular Kreutz group comet, on track just fine. 

Once the MPC gets back with me, it'll be officially known as SMM-12.
(Peter Berrett discovered another likely SMM comet as well, his will be SMM-11).


Re: SMM comet analysis

Peter Berrett
 


No that honour belongs to Robert Mcnaught (82 comets). I'm No 2 with I estimate 45 (perhaps as much as 47) comets.

Robert H. McNaught - Wikipedia

cheers Peter


On 7/06/2021 9:55 am, Alan Watson wrote:
Love the follow up work on these old image data sets.
Good work Richard and Peter. 

On an interesting comet counting note. Peter may now be the number 1 comet hunter in Australia. Reworking the old data is paying off. 👍🇦🇺

Kind regards Alan Watson 

On Mon, 7 Jun. 2021, 4:03 am Robert Pickard, <rpickard1997@...> wrote:
As Karl said the orbit of my SMM comet was "vaguely Kreutz-like", I decided to finally put my comet to the test. 

I realigned the SMM images with my SOHO LASCO C2 template and stacked them together to match. Ironically, the SMM sun disk is the same size as C2, so no resizing was needed.
I did need to rotate the SMM image 24° to make solar north "up". 

The results: With the observation on July 15, 1989, its dead center of my July C2 Kreutz path. I initially thought it was a Kreutz ii comet, but here its obviously a regular Kreutz group comet, on track just fine. 

Once the MPC gets back with me, it'll be officially known as SMM-12.
(Peter Berrett discovered another likely SMM comet as well, his will be SMM-11).



Re: SMM comet analysis

Robert Pickard
 

Indeed so, I know faint overlooked comets from other groups can be missed, but I had no idea it was *that* many and even more still to be found in archival images. 

Do you have any counts for the United States regarding comets found in spacecraft imagery?

On Sun, Jun 6, 2021, 6:55 PM Alan Watson <c2009a1@...> wrote:
Love the follow up work on these old image data sets.
Good work Richard and Peter. 

On an interesting comet counting note. Peter may now be the number 1 comet hunter in Australia. Reworking the old data is paying off. 👍🇦🇺

Kind regards Alan Watson 

On Mon, 7 Jun. 2021, 4:03 am Robert Pickard, <rpickard1997@...> wrote:
As Karl said the orbit of my SMM comet was "vaguely Kreutz-like", I decided to finally put my comet to the test. 

I realigned the SMM images with my SOHO LASCO C2 template and stacked them together to match. Ironically, the SMM sun disk is the same size as C2, so no resizing was needed.
I did need to rotate the SMM image 24° to make solar north "up". 

The results: With the observation on July 15, 1989, its dead center of my July C2 Kreutz path. I initially thought it was a Kreutz ii comet, but here its obviously a regular Kreutz group comet, on track just fine. 

Once the MPC gets back with me, it'll be officially known as SMM-12.
(Peter Berrett discovered another likely SMM comet as well, his will be SMM-11).


Re: SMM comet analysis

Alan Watson
 

Love the follow up work on these old image data sets.
Good work Richard and Peter. 

On an interesting comet counting note. Peter may now be the number 1 comet hunter in Australia. Reworking the old data is paying off. 👍🇦🇺

Kind regards Alan Watson 


On Mon, 7 Jun. 2021, 4:03 am Robert Pickard, <rpickard1997@...> wrote:
As Karl said the orbit of my SMM comet was "vaguely Kreutz-like", I decided to finally put my comet to the test. 

I realigned the SMM images with my SOHO LASCO C2 template and stacked them together to match. Ironically, the SMM sun disk is the same size as C2, so no resizing was needed.
I did need to rotate the SMM image 24° to make solar north "up". 

The results: With the observation on July 15, 1989, its dead center of my July C2 Kreutz path. I initially thought it was a Kreutz ii comet, but here its obviously a regular Kreutz group comet, on track just fine. 

Once the MPC gets back with me, it'll be officially known as SMM-12.
(Peter Berrett discovered another likely SMM comet as well, his will be SMM-11).

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