help_outline Skip to main content

Astrophotography

Comet 21P Giacobini-Zinner
Author Last Post

Thanks, I appreciate that Jeff. 

I guess my expectations sometimes exceed the reality of my capabilities.

I'm still learning with this picture taking, and trying to squeeze out every ounce of what I have.

 

Johnny

 

-----Original Message-----
From: "Astrophotography" <astrophotography@centexastronomy.org>
Sent: Wednesday, August 22, 2018 10:07am
To: "johnnyb@reagan.com" <johnnyb@reagan.com>
Subject: re: Comet 21P Giacobini-Zinner <<$203673837222$>>




Johnny, 
Don't apologize for those images! I loved them and found them wonderful.
Jeff
On Tue, Aug 21, 2018 at 7:40 PM Astrophotography <astrophotography@centexastronomy.org> wrote:
Hey guys,

I hope by now everyone figured out my blunder at the first part of the note about comet 21P G-Z being at it's brightest on Aug. 10, which should have stated Sep. 10 like it did at the end of the note.

I wasn't going to post any images of the comet that I took the other night just after midnight on the 16th, but I thought I'd go ahead and show you all what you're possibilities could be, because I know a lot of you guys can do a lot better.

The two images are both using the same set of 5-35 second exposures. I'm still tweaking my polar alignment after my telescope conversion project, and I'm not able to get too much past 30 sec. without really bad star distortion.

The image with the star trails was processed with Nebulosity and stacked on the comet.
The image where the stars appear to be more round was processed using Deep Sky Stacker using their comet function that stacks on the comet, which then merges it with the stars leaving them round.

There's going to be a couple of unique opportunities for some really cool images with this comet in the coming weeks. On Sept. 10, during it's closest approach, it'll be approx. 36 min. from the open cluster, M37. But, then on Sept. 15, it passes right thru the middle of M35. That should make for a very cool image with the blue stars of the cluster being overlaid by the green glow of the comet.

Let's hope for some good skies during that time.Attachment(s):
21P-G-Z-8-16-18-5X35sec.jpg (516.2 KB)
21P-DSS-5X35_8-16-18.jpg (584.2 KB)


Johnny, 

Don't apologize for those images! I loved them and found them wonderful.

Jeff

On Tue, Aug 21, 2018 at 7:40 PM Astrophotography <astrophotography@centexastronomy.org> wrote:
Hey guys,

I hope by now everyone figured out my blunder at the first part of the note about comet 21P G-Z being at it's brightest on Aug. 10, which should have stated Sep. 10 like it did at the end of the note.

I wasn't going to post any images of the comet that I took the other night just after midnight on the 16th, but I thought I'd go ahead and show you all what you're possibilities could be, because I know a lot of you guys can do a lot better.

The two images are both using the same set of 5-35 second exposures. I'm still tweaking my polar alignment after my telescope conversion project, and I'm not able to get too much past 30 sec. without really bad star distortion.

The image with the star trails was processed with Nebulosity and stacked on the comet.
The image where the stars appear to be more round was processed using Deep Sky Stacker using their comet function that stacks on the comet, which then merges it with the stars leaving them round.

There's going to be a couple of unique opportunities for some really cool images with this comet in the coming weeks. On Sept. 10, during it's closest approach, it'll be approx. 36 min. from the open cluster, M37. But, then on Sept. 15, it passes right thru the middle of M35. That should make for a very cool image with the blue stars of the cluster being overlaid by the green glow of the comet.

Let's hope for some good skies during that time.
Attachment(s):
21P-G-Z-8-16-18-5X35sec.jpg (516.2 KB)
21P-DSS-5X35_8-16-18.jpg (584.2 KB)
Thanks again for the info and the pictures, Johnny. I am looking forward to some good images of this one.
Hi Johnny, if weather permits I am going to do it with my Canon and my AT 106. Should be a good image.

Aubrey

-----Original Message-----
From: mailer@mail2.clubexpress.com [mailto:mailer@mail2.clubexpress.com] On Behalf Of Astrophotography
Sent: Tuesday, August 21, 2018 7:40 PM
To: abrickhouse1@att.net
Subject: Comet 21P Giacobini-Zinner <<$203639417579$>>




Hey guys,

I hope by now everyone figured out my blunder at the first part of the note about comet 21P G-Z being at it's brightest on Aug. 10, which should have stated Sep. 10 like it did at the end of the note.

I wasn't going to post any images of the comet that I took the other night just after midnight on the 16th, but I thought I'd go ahead and show you all what you're possibilities could be, because I know a lot of you guys can do a lot better.

The two images are both using the same set of 5-35 second exposures. I'm still tweaking my polar alignment after my telescope conversion project, and I'm not able to get too much past 30 sec. without really bad star distortion.

The image with the star trails was processed with Nebulosity and stacked on the comet.
The image where the stars appear to be more round was processed using Deep Sky Stacker using their comet function that stacks on the comet, which then merges it with the stars leaving them round.

There's going to be a couple of unique opportunities for some really cool images with this comet in the coming weeks. On Sept. 10, during it's closest approach, it'll be approx. 36 min. from the open cluster, M37. But, then on Sept. 15, it passes right thru the middle of M35. That should make for a very cool image with the blue stars of the cluster being overlaid by the green glow of the comet.

Let's hope for some good skies during that time.

Attachment(s):
File: 21P-G-Z-8-16-18-5X35sec.jpg (516.2 KB) -- Address: http://s3.amazonaws.com/ClubExpressClubFiles/901132/attach/2036394_0_21P-G-Z-8-16-18-5X35sec.jpg
File: 21P-DSS-5X35_8-16-18.jpg (584.2 KB) -- Address: http://s3.amazonaws.com/ClubExpressClubFiles/901132/attach/2036394_1_21P-DSS-5X35_8-16-18.jpg



Hey guys,

I hope by now everyone figured out my blunder at the first part of the note about comet 21P G-Z being at it's brightest on Aug. 10, which should have stated Sep. 10 like it did at the end of the note.

I wasn't going to post any images of the comet that I took the other night just after midnight on the 16th, but I thought I'd go ahead and show you all what you're possibilities could be, because I know a lot of you guys can do a lot better.

The two images are both using the same set of 5-35 second exposures. I'm still tweaking my polar alignment after my telescope conversion project, and I'm not able to get too much past 30 sec. without really bad star distortion.

The image with the star trails was processed with Nebulosity and stacked on the comet.
The image where the stars appear to be more round was processed using Deep Sky Stacker using their comet function that stacks on the comet, which then merges it with the stars leaving them round.

There's going to be a couple of unique opportunities for some really cool images with this comet in the coming weeks. On Sept. 10, during it's closest approach, it'll be approx. 36 min. from the open cluster, M37. But, then on Sept. 15, it passes right thru the middle of M35. That should make for a very cool image with the blue stars of the cluster being overlaid by the green glow of the comet.

Let's hope for some good skies during that time.
Return to Forum