Jump to content

  •  

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

Uranus and Neptune with an 80mm Refractor

  • Please log in to reply
4 replies to this topic

#1 md11spotter98

md11spotter98

    Mariner 2

  • *****
  • topic starter
  • Posts: 215
  • Joined: 23 Jun 2018
  • Loc: Coral Springs, FL (home) Charlottesville, VA (college)

Posted 27 January 2021 - 05:34 AM

My ED80 and T3i are best suited for deep-sky work but occasionally I like to try planetary imaging. I decided to shoot Uranus and Neptune, fully accepting the fact that they would show up as tiny circles in my images. However, I'm pretty surprised with the results!

 

Magic Lantern RAW video (with FPS override) was very useful in this situation, allowing me to record several minutes' worth of video with 1/5 second exposures. I also shot 1-minute exposures and stacked them to reveal the moons. The short and long exposure stacks were combined to create the composites below. I only used the bright center of each moon because they appear as large smudges in the stack (tracking was a mess at this focal length, despite guiding).

 

Camera: Canon T3i
Telescope: Explore Scientific ED80 f/6.0 Apochromatic Refractor
Barlow: Antares 3x Triplet Barlow (effectively 4.77x for ~2365mm)
Mount: Orion Sirius EQ-G
Guide scope: Svbony 50mm f/4.0 Guide Scope
Guide camera: Orion StarShoot AutoGuider
Bortle Class 6 ~19.32 mag/arcsec^2 (Charlottesville, VA)
Captured with Magic Lantern RAW Video (the short exposures)
Processed with PIPP, AutoStakkert! 3, PixInsight, and Paint.NET

 

50854302623_2018915bff_c.jpg

October 18, 2020

Uranus with its four largest moons (from top to bottom): Oberon, Titania, Ariel, and Umbriel.

3,000 x 1/5 second ISO6400 (best of 3,314) [planet]
8 x 60 seconds ISO1600 (best of 36) [moons]

 

50854302778_d7f1546087_c.jpg

November 8, 2020

Neptune with its unusual moon Triton.

1,500 x 1/5 second ISO6400 (best of 1,884) [planet]
7 x 60 seconds ISO1600 (best of 27) [moon]

 

 

 

And these are the long exposure stacks after being processed with a simplified version of my deep-sky workflow:

 

50867574963_bda901a473_c.jpg

 

50868294901_062a0005ca_c.jpg

 

Thanks for looking!

 


  • cometcatcher, Sunspot, RNSpeed and 19 others like this

#2 Tulloch

Tulloch

    Vanguard

  • *****
  • Posts: 2,433
  • Joined: 02 Mar 2019
  • Loc: Melbourne, Australia

Posted 27 January 2021 - 06:59 AM

Excellent images, really impressive work with the DSLR.
  • md11spotter98 likes this

#3 james7ca

james7ca

    Cosmos

  • *****
  • Posts: 9,206
  • Joined: 21 May 2011
  • Loc: San Diego, CA

Posted 27 January 2021 - 07:21 AM

Yes, quite nice for an 80mm refractor.


  • md11spotter98 likes this

#4 Ed D

Ed D

    Aurora

  • *****
  • Posts: 4,849
  • Joined: 30 Apr 2010
  • Loc: Sunny South Florida

Posted 27 January 2021 - 07:43 AM

Really nice!!!  waytogo.gif

 

Ed D


  • md11spotter98 likes this

#5 md11spotter98

md11spotter98

    Mariner 2

  • *****
  • topic starter
  • Posts: 215
  • Joined: 23 Jun 2018
  • Loc: Coral Springs, FL (home) Charlottesville, VA (college)

Posted 28 January 2021 - 02:19 AM

Thanks everyone, I appreciate your kind comments! :)




CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


Recent Topics






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics