Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  M 3  ·  NGC 5272  ·  NGC 5466  ·  The star 9Boo
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On stage: two very different globular clusters, 



    
        

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On stage: two very different globular clusters, 



    
        

            gigiastro

On stage: two very different globular clusters

Getting plate-solving status, please wait...
On stage: two very different globular clusters, 



    
        

            gigiastro
On stage: two very different globular clusters, 



    
        

            gigiastro

On stage: two very different globular clusters

Acquisition details

Dates:
April 17, 2020
Frames:
263×30(2h 11′ 30″) ISO1600
Integration:
2h 11′ 30″
Darks:
10
Flats:
30
Flat darks:
10
Bias:
80
Avg. Moon age:
24.50 days
Avg. Moon phase:
25.98%
Bortle Dark-Sky Scale:
7.00
Mean SQM:
18.44
Temperature:
11.00

Basic astrometry details

Astrometry.net job: 3449986

RA center: 13h53m33s.1

DEC center: +28°3918

Pixel scale: 5.136 arcsec/pixel

Orientation: 1.588 degrees

Field radius: 3.752 degrees

Resolution: 4584x2578

File size: 2.4 MB

Locations: Home, Mestre, Venezia, Italy

Data source: Backyard

Description

«NGC 5466 is a class XII(*) globular cluster in the constellation Boötes.

Located 51,800 light years from Earth (...). It is thought to be the source of

a stellar stream discovered in 2006, called the 45 Degree Tidal Stream.

This star stream is an approximately 1.4° wide star lane extending from Boötes to Ursa Major (...).

M3 (...). This cluster (class VI globular cluster...in Canes Venatici...

one of the largest and brightest...) is located at a distance of about 33,900 light-years away from Earth»

(From Wikipedia)

Drizzle x2 integration-->cropping-resampling

Samyang 135mm f/2 set to f/2.8

(*)Globular cluster with almost no central concentration

Comments

Revisions

  • Final
    On stage: two very different globular clusters, 



    
        

            gigiastro
    Original
  • On stage: two very different globular clusters, 



    
        

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    B

Sky plot

Sky plot

Histogram

On stage: two very different globular clusters, 



    
        

            gigiastro