Hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  IC 4277  ·  M 51  ·  NGC 5194  ·  NGC 5195  ·  Whirlpool Galaxy
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M51 Whirlpool, 



    
        

            DustSpeakers
M51 Whirlpool
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M51 Whirlpool

Getting plate-solving status, please wait...
M51 Whirlpool, 



    
        

            DustSpeakers
M51 Whirlpool
Powered byPixInsight

M51 Whirlpool

Technical card

Imaging telescopes or lenses: Celestron Edge HD 9.25''

Mounts: Celestron CGX

Guiding cameras: ZWO ASI120MM-S

Focal reducers: Celestron EdgeHD f/7 Focal Reducer

Software: PHD Labs PHD 2 Guiding  ·  Startools 1.5  ·  Deepsky Stacker Deep Sky Stacker (DSS)  ·  Gimp 2.10.8

Filters: ZWO LRGB 31 MM,Halpha,SII,OIII


Dates:April 10, 2019

Frames: 26x300" (2h 10')

Integration: 2h 10'

Avg. Moon age: 5.00 days

Avg. Moon phase: 25.77%


Basic astrometry details

Astrometry.net job: 3545059

RA center: 13h 29' 51"

DEC center: +47° 12' 21"

Pixel scale: 0.478 arcsec/pixel

Orientation: 301.189 degrees

Field radius: 0.319 degrees


Resolution: 3798x2949

Locations: Home (Bortle 5), Yateley, United Kingdom

Data source: Backyard

Description

Version F - 21 May 2020 - First visit this year!

- 14,15 May 2020 - Added data - L 4 hrs, RGB ~1.5 hrs each in 600 sec subs

- Reprocessed in DSS, StarTools and Gimp

Version E - 30 Apr 2019

Reprocessed from Version B's data set, 10 x 600s Canon 550D @ 400ISO with guiding

Version D - 26 Apr 2019 -

Same DSS stacked data reprocessed with StarTools

Version C - 11 Apr 2019

26 x 300s @ 1600ISO with guiding and reprocessed. There's more definition in the dust lanes in this version

Version B

10x600s Canon 550D @ 400ISO with guiding

Version A

Testing the limitations of my back garden site and equipment with just equatorial mount tracking:

- no guiding

- no darks, flats or bias

- no post processing other than clipping

9 x 120 second, ISO 1600 exposure stacked with Nebulosity

Comments

Revisions

  • M51 Whirlpool, 



    
        

            DustSpeakers
    Original
  • M51 Whirlpool, 



    
        

            DustSpeakers
    E
  • Final
    M51 Whirlpool, 



    
        

            DustSpeakers
    F

E

Description: 30 Apr 2019 - Reprocessed from Version B's data set

Uploaded: ...

F

Description: Data added and reprocessed

Uploaded: ...

Sky plot

Sky plot

Histogram

M51 Whirlpool, 



    
        

            DustSpeakers