Hemisphere:  Northern  ·  Constellation: Hercules (Her)  ·  Contains:  IC 4645  ·  M 92  ·  NGC 6341
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M92 in Hercules, 



    
        

            Michael Feigenbaum
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M92 in Hercules

Getting plate-solving status, please wait...
M92 in Hercules, 



    
        

            Michael Feigenbaum
Powered byPixInsight

M92 in Hercules

Imaging telescopes or lenses: Vixen R200SS

Imaging cameras: ZWO ASI 183MC Pro (cooled)

Mounts: Orion HDX110 EQ-G

Guiding telescopes or lenses: ZWO 30F4 Guidescope

Guiding cameras: ZWO ASI 120 MC

Software: Stark Labs Nebulocity 4  ·  PixInsight  ·  Stark Labs PHD 2.6  ·  DSS

Filters: Baader UV/IR-Cut/L Filter


Dates:May 23, 2019

Frames: 172x60" (2h 52')

Integration: 2h 52'

Avg. Moon age: 19.28 days

Avg. Moon phase: 78.67%


Astrometry.net job: 2764643

RA center: 17h 17' 4"

DEC center: +43° 8' 3"

Pixel scale: 0.616 arcsec/pixel

Orientation: 35.995 degrees

Field radius: 0.556 degrees


Resolution: 5368x3648

Locations: Papago Butte, near Maricopa, AZ, United States

Data source: Backyard

Description

Messier 92 or the Second Cluster in Hercules...

This beautiful globular cluster is approximately 26,700ly from Earth. If that distance is accurate, then the cluster spans approximately 109lys and containing around 330,000 stars.

It is thought to be among the oldest of the globular clusters because of its very low metalacity, in the neighborhood of 0.5% of the the metalacity of the Sun. Thus, it is thought that this cluster may be nearly as old as the universe.

The above information is from www.messier-objects.com, an excellent site for succinct yet interesting information on the Messier objects.

This was fairly difficult to process... I believe I had less than good seeing both nights I imaged it. Also because of a peculiarity in my view window, I could only get 1.5 hours each time in the early evening and I am not able to image it when it is near the zenith (an exceedingly frustrating limitation of the Skyshed Pod). That said, among the several Globulars I have been doing lately, this one is my least favorite of the group.

I always welcome any comment or criticism, it is not possible to hurt my feelings, lol...

Clear Skies to all,

Mike

Comments

Revisions

  • M92 in Hercules, 



    
        

            Michael Feigenbaum
    Original
  • Final
    M92 in Hercules, 



    
        

            Michael Feigenbaum
    C

C

Description: I was never happy with this image from the beginning. I wanted more integration and it would have been easy to do it if I had the pod zenith table that I have been reluctant to buy. But anyway, I reprocessed this and I think that even with less data than I wanted it is still an improvement over my first try. CS! Mike

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M92 in Hercules, 



    
        

            Michael Feigenbaum

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