The EVAC Andromeda Galaxy Globular Cluster Observing Program

The great Andromeda Galaxy (M31) is the closest large spiral galaxy to our own. From a dark site it can be seen as a faint smudge with the unaided eye. What is not so easily observed are the 25 globular clusters on this list, all contained within this galactic neighbor.

This observing program can be both challenging and fulfilling... but it most certainly will not be easy. In addition to the data contained in the table below, anyone undertaking this program should also avail themselves of additional resources to correctly identify the star fields in which each cluster lies, as well as the cluster itself.

Astrophotographer Robert Gendler has prepared an excellent resource using an SBIG STL-11000XM camera mounted on a 20" Ritchey-Chretien telescope. These maps, availble using the button below, are comprised of cluster identification overlaid on images of the galaxy.

M31 Globular Cluster Maps Sky Tools Observing List Megastar Observing List M31 GC Observing Program Log


Object

Con RA Dec Mag Size
G1 And 00h32m46.3s +3934' 41" 13.7 30"
G33 And 00h39m33.7s +4031'15" 15.5 18"
G35 And 00h39m40.0s +4056'55" 15.6 24"
G52 And 00h40m20.2s +4043'57" 15.7 24"
G58 And 00h40m26.6s +4127'27" 15.6 18"
G64 And 00h40m32.4s +4121'42" 15.1 18"
G72 And 00h40m52.5s +4118'53" 15.0 18"
G78 And 00h41m01.1s +4113'47" 14.3 24"
G87 And 00h41m14.7s +4055'51" 15.6 24"
G96 And 00h41m28.2s +4053'50" 15.5 24"
G108 And 00h41m43.1s +4134'20" 15.8 18"
G127 And 00h42m02.6s +4151'58" 15.9 18"
G144 And 00h42m15.7s +4101'13" 15.5 24"
G150 And 00h42m21.1s +4132'15" 15.4 18"
G172 And 00h42m33.2s +4103'30" 15.2 18"
G192 And 00h42m51.9s +4131'07" 16.1 12"
G213 And 00h43m14.6s +4107'23" 14.6 18"
G222 And 00h43m25.6s +4115'38" 15.2 18"
G233 And 00h43m36.7s +4108'17" 15.4 18"
G244 And 00h43m45.5s +4136'57" 15.4 18"
G256 And 00h43m58.1s +4124'39" 15.4 18"
G272 And 00h44m14.5s +4119'18" 14.7  
G279 And 00h44m27.0s +4128'47" 15.4 18"
G280 And 00h44m29.5s +4121'37" 14.2 24"
G295 And 00h44m52.5s +4125'07" 15.0 12"

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