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Astronomical League (AL)
Galaxy Grooups and Clusters Program
This program is a visual - and/or - CCD Observing program of the Astronomical League (AL), in
partnership with the Rose City Astronomers (Portland, Or). Complete details on the program
can be found at:
http://www.astroleague.org/node/413
The index(es) of objects provided by the observing guide, lists 251 objects to select from. From that
list, a total of 120 are required to complete the project, in specific groups, as outlined below.
Group #1
Hickson Compact Galaxy Group
100 Objects
30 Required
Completed
Group #2 Galaxy Trios from
The Atlas of Compact Galaxy Trios
50 Objects
30 Required
Completed
Group #3
The AL Additional galaxy Group
50 Objects
30 Required
Completed
Plus Challenge Item (Einstein’s Cross)
1 Optional
Completed
Group #4
Selected Abell Clusters Group
50 Objects
30 Required
Completed
You can see the list of objects, and linked images of completed observations, by clicking
on the links below. Note that the Hickson Group is also a separate EVAC observing program
requiring observation of all 100 objects.
Link1
to the Hickson Compact Galaxy Group
100 items observed and documented.
Link2
to the Galaxy Trios Group
47 Items observed and documented.
Link3
to the Additional Galaxy Group
49 + 1 Items observed and documented.
Link4
to the Selected Abell Cluster Group
34 Items observed and documented.
This page updated on:
Nov 18, 2014