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The Ursa Minor Spheroidal Dwarf Galaxy (UGC9749), 





    
        

            Kees Scherer
The Ursa Minor Spheroidal Dwarf Galaxy (UGC9749)

The Ursa Minor Spheroidal Dwarf Galaxy (UGC9749)

Technical card

Resolution: 2124x2300

Dates:May 11, 2018

Frames:Hutech IDAS 2" LPS-P2: 128x300" (gain: 1.00) -20C bin 1x1

Integration: 10.7 hours

Darks: ~40

Flats: ~26

Bias: ~150

Avg. Moon age: 25.33 days

Avg. Moon phase: 18.64%

Astrometry.net job: 2063992

RA center: 226.716 degrees

DEC center: 66.807 degrees

Pixel scale: 2.227 arcsec/pixel

Orientation: 0.836 degrees

Field radius: 0.968 degrees

Locations: Knight Observatory,Quinta Castelo Novo, Serra de Tomar, Portugal

Data source: Backyard

Description

The Ursa Minor Dwarf Spheriodal Galaxy is the faintest known member of the local group of Galaxies with a surface brightness of 25.5 V-mag/arcsec^2. (ref 3). Distance is 225000 lightyears (ref 1)

RA: 15h09m08.5 / Dec: +67d13m21

Imaged on 4,5,6,10 & 11 May, 2018

ref 1) https://en.wikipedia.org/wiki/Ursa_Minor_Dwarf
ref2 ) https://www.space.com/15619-faintest-globular-star-cluster.html
ref3) https://arxiv.org/pdf/astro-ph/0206144.pdf

Comments

Author

keesscherer
Kees Scherer
License: Attribution Creative Commons
1461
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The Ursa Minor Spheroidal Dwarf Galaxy (UGC9749), 





    
        

            Kees Scherer

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