Date: 28 March 2023

Altitude: 44-48 degrees

Angular Size: 1° 00' x 0° 45'

Orientation: North up; East left

Pixel scale: 1.30" per pixel

Total exposure time: 60 minutes

B filter: 31 x 28 seconds

V filter: 31 x 21 seconds

R filter: 31 x 16 seconds

Caldwell 3 is also known as NGC 4236

Galaxy: classification SBd

Constellation: Draco

Diamater: 72,000 light years

Distance: 10.5 million light years

Notes

Cadwell 3 is a member of the M81 Group. In addition to Messier 81, the group contains the

starburst galaxy Messier 82.