astro

Astronomy sketches

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Messier 103

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M103 – NGC 581 – Open cluster in Cassiopeia

Object	Messier 103
Observed at	Dunaharaszti, HU, 2025-09-15 22:10
NELM	~ 4.4
Seeing	6
Aperture	127 mm
Magnification	171x
FOV	0.4°

Object data

Object	M 103
Desc.	Medium disperation, medium sized cluster with poor star density †
RA	01h 33m 00s †
Dec	60° 42’ 0” †

† fetched from astronomyapi.com

Links

• Full sketch
• Original sketch