Messier 93

Observation Notes:

This is a triangular arrow shaped cluster with its tip pointing southwest. This southwest tip hosts one orange and one yellow star. In the center lies a trapezium-like arrangement of stars. The main body appears to be 16' in diameter. The brightest neighboring star lies 30' to the southeast.


M93 lies 3600 light years away and its 80 or so member stars span 20-25 light years across. Its brightest stars are B9 Blue Giants, and its age is estimated at 100 million years. While its stars form a triangular shape, Kenneth Glyn Jones found it to look like a butterfly, while Admiral Smyth found it more like a starfish. It was one of the last deep sky objects discovered by Charles Messier personally and was cataloged in 1781.

SubjectM93 (NGC 2447)
ClassificationOpen Cluster
Position*Puppis [RA: 07:44.6 / Dec: -23:52
Date/TimeFebruary 4, 2005 - 9:15 PM
(February 5, 2005 - 04:15 UT)
Observing Loc.Flagstaff, AZ - Home
InstrumentOrion SVP 6LT Reflector (150 mm dia./1200 mm F/L)
Eyepieces/Mag.32 mm (37X)
ConditionsClear, 29°F
TransparencyMag 5.0

*Based on published data.

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This page contains a single entry by Jeremy Perez published on February 4, 2005 9:15 PM.

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