Three clusters to practise getting that star colour. No easy. Star colour. For male astronomers. Firstly, a few meaningless numbers.
cluster distance ly
M36 3900
M37 4200
M38 3900
canon 700d on a bresser 150nt
20 snaps each of 60s or 90s
m35 in in auriga |
m36 in auriga |
m38 -top- and ngc1907 in auriga |