Cluster

M103

M103 · NGC 581 · MWSC 124

Captures

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Object data

Designation: M103
Also known as: NGC 581, MWSC 124
Type: Cluster
Constellation: Cassiopeia
RA (J2000): 01h 33m 22s
Dec (J2000): +60° 39′ 29″
Magnitude: 7.4
Apparent size: 4.5′
Catalogue: Messier
Reference: Wikipedia

Catalogue values from OpenNGC (CC-BY-SA-4.0).

Best months to observe

From 51.5°N: best October to November, peaking at 81° at 22:00. Circumpolar - never sets.

January: 55 degrees at 22:00
February: 42 degrees at 22:00
March: 32 degrees at 22:00
April: 24 degrees at 22:00
May: 22 degrees at 22:00
June: 25 degrees at 22:00
July: 32 degrees at 22:00
August: 44 degrees at 22:00
September: 58 degrees at 22:00
October: 72 degrees at 22:00
November: 81 degrees at 22:00
December: 70 degrees at 22:00

Your latitude

Degrees north, negative for south. Recomputed in your browser and remembered on this device.

Altitude at 22:00 local time on the 15th of each month. Twilight, moon and weather are your problem.