Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: Roberto on Sep 16, 2020, 16:34:49

Title: Mars is here!
Post by: Roberto on Sep 16, 2020, 16:34:49
My first image of Mars in quite a while!  Taken Monday dawn in above average seeing as the high pressure system moved over SE England.   Details of the acquisition are at the link below:

https://www.astrobin.com/y1nltx/E/ (https://www.astrobin.com/y1nltx/E/)

It was imaged using a 10" f/20 Maksutov and a ZWO ASI462MC CMOS OSC camera at 142 frames per second.  1,500 frames stacked out of 30,000 taken.   

I hope the seeing cooperates later in the month and into October for closest approach.

Roberto

(https://cdn.astrobin.com/thumbs/hdLHqEy2AwVE_1824x0_yOjrhbNM.jpg)
Title: Re: Mars is here!
Post by: Carole on Sep 16, 2020, 20:47:44
I saw this on Astrobin.  Great detail Roberto.

Carole
Title: Re: Mars is here!
Post by: Roberto on Sep 16, 2020, 21:56:24
Thank you Carole!

I managed to extract a little bit from the data (in my view but maybe I'm squinting...) and finished with the below:

(https://cdn.astrobin.com/thumbs/vZXWQXBhmM_i_1824x0_kZeHYKMo.jpg)
Title: Re: Mars is here!
Post by: Carole on Sep 16, 2020, 22:02:29
The new version looks smoother.

Carole
Title: Re: Mars is here!
Post by: RobertM on Sep 17, 2020, 09:05:23
Excellent work Roberto, that AP Mak is a great scope.

May be I'm squinting as well but I also think there is a bit more teased out of the second image.  I'll be trying Mars myself when I get back from hols.

Robert
Title: Re: Mars is here!
Post by: Roberto on Sep 17, 2020, 13:49:37
Thank you Carole, Robert.  Robert it's a TEC Mak, I wish I had the AP!  Enjoy your break  8)

Roberto
Title: Re: Mars is here!
Post by: MarkS on Sep 17, 2020, 14:26:03
That's a fantastic image.  Lots of detail.  The seeing must have been good.

Mark
Title: Re: Mars is here!
Post by: Roberto on Sep 17, 2020, 15:09:44
Thank you Mark - difficult to put a reference on seeing as I have not observed the planets in literally years because they are so low over the horizon.  I would say it was above average.  I'm hoping for equal or better conditions for early October when the planet will be more illuminated.

Roberto
Title: Re: Mars is here!
Post by: The Thing on Sep 17, 2020, 19:30:45
That is fantastic Roberto, the detail is amazing. Seeing must have been very good. I have done a lot of Mars images over the years and also intend to set up for planetary when I get home. My old Meade 8" SCT can't compete with this though and you've done a great job with the colour. Shame the other planets are at such woeful altitudes this year. Did you use an ADC?
Title: Re: Mars is here!
Post by: Roberto on Sep 17, 2020, 19:56:52
Thank you! Yes, I did have an ADC in the imaging train. There was some dispersion but it was easily corrected - some 5/7 px at that focal length (0.11”/px). Fingers crossed for good seeing - maybe some this weekend- and we can compare images!

Roberto
Title: Re: Mars is here!
Post by: Hugh on Sep 17, 2020, 22:33:49
Lovely picture Roberto

Good to see one of the planets back on the Forum!

Hugh
Title: Re: Mars is here!
Post by: Roberto on Sep 18, 2020, 06:06:40
Thank you Hugh!  Yes, with Jupiter and Saturn so low, it’s nice to have Mars high(er) in the sky.

Roberto
Title: Re: Mars is here!
Post by: Roberto on Sep 23, 2020, 17:47:30
More Mars....

Taken early in the morning of 22 September.  Same equipment but slightly better seeing:

(01:37UT - 7% of 30,000 - resized 150%)

(https://cdn.astrobin.com/thumbs/_RS5WLwJbbit_1824x0_Ld6lYopT.jpg)

(01:45UT - 5 frames de-rotated and stacked in WinJupos)

(https://cdn.astrobin.com/thumbs/UNk-645dPU5u_1824x0_yOjrhbNM.jpg)

(02:00UT - 3 frames de-rotated and stacked in WinJupos)

(https://cdn.astrobin.com/thumbs/KFVaonrUXwCg_1824x0_COnXzQFG.jpg)

Animation of the 5 frames from the second image:

(https://cdn.astrobin.com/images/5378/2020/cfb5a317-9450-465f-a70b-e3799add259c.gif)

What hopefully should be visible in the above...

(https://cdn.astrobin.com/thumbs/QFppJCmXCBRr_1824x0_kZeHYKMo.jpg)

Roberto
Title: Re: Mars is here!
Post by: RobertM on Sep 23, 2020, 18:13:54
Those are really excellent Mars images, great capture.

Robert
Title: Re: Mars is here!
Post by: Roberto on Sep 23, 2020, 18:44:55
Thank you Robert!

I added a bit of colour saturation to the last stack.

Roberto

(https://cdn.astrobin.com/thumbs/mJFFhFEPF1E6_1824x0_XMZ8qe_X.jpg)
Title: Re: Mars is here!
Post by: Carole on Sep 23, 2020, 18:49:23
That last batch show some fantastic detail.

Carole
Title: Re: Mars is here!
Post by: Roberto on Sep 23, 2020, 19:15:38
Thank you Carole. I was surprised by that as the planet had crossed the meridian by then and seeing was not any better, at least on the monitor. I suspect I got something better out of it as the videos were shorter (20k vs 30k frames) and maybe details smeared less when stacking.

Roberto
Title: Re: Mars is here!
Post by: Roberto on Oct 24, 2020, 11:59:27
More Mars in no so good seeing...but after all this rain and clouds better than nothing.  Taken on Thursday night:

(https://cdn.astrobin.com/thumbs/TU7w0MVugXva_16536x16536_LOFmXT2F.jpg)

Information here:  https://www.astrobin.com/8fc2xh/G/ (https://www.astrobin.com/8fc2xh/G/)
Title: Re: Mars is here!
Post by: Carole on Oct 24, 2020, 12:01:28
Great Result Roberto

Carole
Title: Re: Mars is here!
Post by: Roberto on Oct 24, 2020, 17:50:58
Thank you Carole!  I put together an animation from the frames I took from 22:43 to  00:01.

Roberto

(https://cdn.astrobin.com/images/5378/2020/afde971a-08ea-4e95-ac2d-c02093ea8ecd.gif)
Title: Re: Mars is here!
Post by: NoelC on Oct 25, 2020, 08:54:09
Very good Roberto
And in motion too.
Noel
Title: Re: Mars is here!
Post by: Roberto on Oct 25, 2020, 15:32:24
Thank you Noel!
Title: Re: Mars is here!
Post by: Roberto on Nov 09, 2020, 13:47:49
The dreaded edge-rind effect became stronger and stronger since September.

More Mars in November:

3/11/20 - 21:55UT

(https://cdn.astrobin.com/thumbs/A9w_-O2UgUCg_1824x0_weuzSonx.jpg)

And a blurb of Phobos and Deimos:

(https://cdn.astrobin.com/thumbs/DW5gLT04Kczy_1824x0_XMa3dGG3.jpg)

And the next day, 5 November, at the same time:

(https://cdn.astrobin.com/thumbs/JTI7IBPTJs7P_1824x0_CtqCEXoG.jpg)

And what will possibly be the last hurrah of Mars this apparition as the weather deteriorates and planet shrinks, on 7 November at 20:58UT:

(https://cdn.astrobin.com/thumbs/KPwil5tpIosf_1824x0_weuzSonx.jpg)


Roberto

Title: Re: Mars is here!
Post by: The Thing on Nov 10, 2020, 08:28:20
Very nice Roberto. Shame some deity can't peel the rind off these planets :wall:
Title: Re: Mars is here!
Post by: Roberto on Nov 10, 2020, 13:36:02
Thank you!  I have not tried to remove the effect by processing but did read Martin Lewis' update on it here:  http://skyinspector.co.uk/mars-edge-artefact/ (http://skyinspector.co.uk/mars-edge-artefact/)  Some study!

Roberto