M103 - Traffic Light Cluster

A very distinct red star in the middle of this cluster.


Object Type: Open Cluster

Constellation: Cassiopeia

Right Ascension: 01h 33m 23s

Declination: +60° 39' 00"

Magnitude: 7.4

Size: 6.0'

My Observation Details

Object Name: M103 - Traffic Light Cluster
Seeing: E
Transparency: 6
Lat/Lon: 35.161, -85.372
Instrument: 750mm/150mm
Power: 75.0x (10mm eyepiece)
Date: 2022-12-29
Time: 7:20 EST

Observation Notes

Visual Description

A very distinct red star in the middle of this cluster.

Additional Notes

Thus the common name of Traffic Light Cluster even if the color is out of order. Used Red Dot finder.

Sketch

M103 - Traffic Light Cluster sketch