Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  NGC 3718  ·  NGC 3729
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NGC 3718 - Last-light for my Celestron 8SE OTA, 



    
        

            Anthony Quintile
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NGC 3718 - Last-light for my Celestron 8SE OTA

Getting plate-solving status, please wait...
NGC 3718 - Last-light for my Celestron 8SE OTA, 



    
        

            Anthony Quintile
Powered byPixInsight

NGC 3718 - Last-light for my Celestron 8SE OTA

Imaging telescopes or lenses: Celestron Nexstar 8SE

Imaging cameras: ZWO ASI2600MC Pro

Mounts: Losmandy G11 Gemini 2

Guiding telescopes or lenses: Celestron Nexstar 8SE

Guiding cameras: ZWO ASI120MM Mini

Focal reducers: Starizona SCT Corrector II - 0.63X

Software: Phd2  ·  Pleaides Astrophoto PixInsight 1.8.8-6  ·  SharpCap 2.9  ·  Photoshop CC 2019  ·  DeepSkyStacker (DSS) deepskystacker

Accessory: Celestron OAG #93648


Dates:May 14, 2021

Frames: 156x300" (13h)

Integration: 13h

Avg. Moon age: 2.42 days

Avg. Moon phase: 6.49%


RA center: 11h33m04s.498

DEC center: +53°0504.52

Pixel scale: 0.267 arcsec/pixel

Orientation: -178.783 degrees

Field radius: 0.293 degrees

More info:Open 


Resolution: 4855x6201

Locations: Home, Flagstaff, AZ, United States

Data source: Backyard

Description

I ordered a new Celestron 9.25" SCT expecting arrival in August 2022 (!) and it ended up showing up in about week instead.

So that means this is the last image I'll be shooting with my 8SE OTA. This had been the "replacement" for the Super C8 I had as a kid when I got back into astronomy a little less than 40 years later in 2018, so a fond farewell to a classic platform, although the extra resolution and faster focal ratio will be welcome. (Yes, the 8" scopes are something like F/11 actually.)

I used only the best 13 hours of well over 20 hours as an experiment in quality over quantity for my subs.

The pixel scale is half the actual because I dithered and 2x drizzled.

Comments

Revisions

  • NGC 3718 - Last-light for my Celestron 8SE OTA, 



    
        

            Anthony Quintile
    Original
  • NGC 3718 - Last-light for my Celestron 8SE OTA, 



    
        

            Anthony Quintile
    B
  • NGC 3718 - Last-light for my Celestron 8SE OTA, 



    
        

            Anthony Quintile
    C
  • Final
    NGC 3718 - Last-light for my Celestron 8SE OTA, 



    
        

            Anthony Quintile
    D

B

Description: I should really wait until morning to post images. Lightened slightly since the image seemed too dark in the daylight.

Uploaded: ...

C

Description: Reprocessed and nearly full APS-C field. I get some blue coma from either the scope or the corrector in the corners, and I had shot this object meaning to crop since it is so small. I could chase those tails in PS, but that's pretty tedious and this image isn't going to print or anything, so... That said, there are a ton of interesting tiny galaxies and I wanted to do a version with those in the image as well.

Uploaded: ...

D

Description: I liked my reprocess for wide-field better, so I cropped to be my final "close-up".

Uploaded: ...

Sky plot

Sky plot

Histogram

NGC 3718 - Last-light for my Celestron 8SE OTA, 



    
        

            Anthony Quintile