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Comet Panstarrs C/2017 T2

PostPosted: Wed Dec 04, 2019 4:13 pm
by smerral
Comet Panstarrs C/2017 T2. Imaged using the C8 and Starlight Xpress H9-C, a sequence of 30 sec exposures covering around 120 mins. There is a bit of a jump near the end when I lost it due to cloud, jumped to the Crab nebula for a time and then came back. The movement of the frame is due to the dithering I had enabled. In hindsight it would have been better to turn it off.



And here is a stack of 38 frames.

Image

Re: Comet Panstarrs C/2017 T2

PostPosted: Thu Dec 05, 2019 5:31 am
by thymelord
Well done Brian great capture :thumbsup:

Re: Comet Panstarrs C/2017 T2

PostPosted: Thu Dec 05, 2019 7:16 am
by AstroChris
Great!!

What time span does the video cover?
What delta time is between each frame?


Greetings
Chris

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Re: Comet Panstarrs C/2017 T2

PostPosted: Sun Dec 08, 2019 2:59 pm
by smerral
What time span does the video cover?
What delta time is between each frame?


The whole video covers about 120 mins. However, there is a "jump" around the 80 min mark when I lost the comet to cloud. That is a 30 min gap. Each sub was 60 secs and the gap between each frame varies between 90 and 120 secs.

Re: Comet Panstarrs C/2017 T2

PostPosted: Mon Dec 09, 2019 8:09 am
by smerral
And another one combining comet and starfield.

Image

Re: Comet Panstarrs C/2017 T2

PostPosted: Mon Dec 09, 2019 9:06 am
by AstroChris
Very nice!!

Given the dt, the delta_pixel of movement per d_t, the orientation in the sky it would be just cool to estimate the orbit of the object using just the data of your backyard!!

Greetings
Chris

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Re: Comet Panstarrs C/2017 T2

PostPosted: Wed Dec 11, 2019 6:26 pm
by AstroChris
smerral wrote:
What time span does the video cover?
What delta time is between each frame?


The whole video covers about 120 mins. However, there is a "jump" around the 80 min mark when I lost the comet to cloud. That is a 30 min gap. Each sub was 60 secs and the gap between each frame varies between 90 and 120 secs.
AstroChris wrote:Very nice!!

Given the dt, the delta_pixel of movement per d_t, the orientation in the sky it would be just cool to estimate the orbit of the object using just the data of your backyard!!

Greetings
Chris

Gesendet von meinem LG-H870 mit Tapatalk
Like that one ;-)

https://youtu.be/5n24QLYNjV8

Greetings
Chris

Gesendet von meinem LG-H870 mit Tapatalk

Re: Comet Panstarrs C/2017 T2

PostPosted: Thu Dec 12, 2019 7:07 pm
by smerral
Chris, when I get time I may even give it a go! :D

Re: Comet Panstarrs C/2017 T2

PostPosted: Thu Dec 12, 2019 8:05 pm
by AstroChris
Yea!
I mean if the orbit is tilted or elliptical it's a bit more tricky... But just pretend it's circular to get a first estimate of the orbit.

Show us a picture of the orbit if it's done! That would be cool!!

Greetings
Chris

Gesendet von meinem LG-H870 mit Tapatalk