- Open Clusters of the Berkeley Catalogue (Ori) -
Berkeley 21 (OC)

Image source: DSS II (blue) - 12'×12'
|
Name: |
Berkeley 21, Berk21, Be21 |
Type: |
OC |
Constellation: |
Ori |
Coordinates: |
05h51m46.00s / +21°48'36.00" |
Brightness / Size: |
11m.1 / 3.5'×3.5' |
|
Robert Zebahl |
8" f/6, 80x, Bortle 4-, SQM-L 20.8
Quite faint, roundish, slightly condensed. I will observe this cluster again to ensure this sighting.
|
DIFFICULT
|
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Berkeley 22 (OC)

Image source: DSS II (blue) - 8'×8'
|
Name: |
Berkeley 22, Berk22, Be22 |
Type: |
OC |
Constellation: |
Ori |
Coordinates: |
05h58m27.00s / +07°45'24.00" |
Brightness / Size: |
- / 2.0'×2.0' |
|
Robert Zebahl |
8" f/6, 150x, Bortle 4-, SQM-L 20.8
Conditions in the target region: SQM-L 20.4 Difficult to hold. Very faint, rather compact brightening. I will observe this cluster again to ensure this sighting.
|
DIFFICULT
|
|
Berkeley 72 (OC)

Image source: DSS II (blue) - 8'×8'
|
Name: |
Berkeley 72, Berk72, Be72 |
Type: |
OC |
Constellation: |
Ori |
Coordinates: |
05h50m12.00s / +22°15'00.00" |
Brightness / Size: |
- / 5.0'×5.0' |
|
Robert Zebahl |
8" f/6, 150x, Bortle 4-, SQM-L 20.8
I only saw 3 stars with averted vision. But I'm not sure if they are members of the cluster.
|
DIFFICULT
|
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