Cluster

Ptolemy's Cluster

M7 · NGC 6475 · MWSC 2739

Captures

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Object data

Name: Ptolemy's Cluster
Designation: M7
Also known as: NGC 6475, MWSC 2739
Type: Cluster
Constellation: Scorpius
RA (J2000): 17h 53m 51s
Dec (J2000): -34° 47′ 34″
Magnitude: 3.3
Apparent size: 22.2′
Catalogue: Messier
Reference: Wikipedia

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

Best months to observe

From 51.5°N: never climbs far above the horizon in the evening.

January: -73 degrees at 22:00
February: -64 degrees at 22:00
March: -47 degrees at 22:00
April: -29 degrees at 22:00
May: -13 degrees at 22:00
June: -1 degrees at 22:00
July: 4 degrees at 22:00
August: 1 degrees at 22:00
September: -10 degrees at 22:00
October: -25 degrees at 22:00
November: -43 degrees at 22:00
December: -61 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.