A large open cluster, visible to the naked eye as a nebulous object under dark skies.
Open cluster in Cancer. Magnitude 3.7.
Can you see it from Guyana?
From Georgetown (6.8° N) it climbs to 77° above the northern horizon at its highest; from Lethem (3.4° N), to 73° above the northern horizon. It is highest at midnight on the night of 28 Jan, in the middle of its season. The page works out tonight's rise, highest point and set for both towns in Guyana time (UTC-4), and where the Moon is.
What you'll see
Your eyes: Visible to the eye from a dark site as a faint misty patch.
10x50 binoculars: Resolves into dozens of stars.
A small telescope (80 to 100 mm): Too big for most telescope fields; binoculars show it better.
A camera: Spans about 40% of an APS-C frame at 300 mm (field 4.5° × 3.0°); needs a tracking mount.
How big, how bright, how far
Size on the sky: 95′, 3.1 Moons across (the Moon is about 31′ wide).
Brightness: magnitude 3.7. Brighter than the faintest stars Georgetown shows (4.3), and Lethem's (6.0).
Distance: 610 light-years. The light reaching your eye left it about 610 years ago, around the year 1420.
What it is made of
Type
Open Cluster
Distance
Approx. 610 Lightyears
True size
Approx. 16 Lightyears diameter
Main Sequence Stars: Hundreds of stars, mostly A-F types