LDN 1622, Barnards Loop and M78

Comment

Comment by Conor on November 14, 2013 at 3:20pm

My apologies for hijacking Alistair's image. It's magnificent, as always.

Comment by Conor on November 14, 2013 at 3:19pm

More than 10%, I would say. It depends on how many 'features' (read stars) are in the overlapping areas. That's what the algorithm uses for alignment, so, the more the merrier! For sparse fields, 20-30% is probably sufficient, just make sure there are plenty of well-defined stars in the region of interest.

Comment by Dave Lane on November 14, 2013 at 7:11am

10% enough?

Comment by Conor on November 13, 2013 at 2:37pm

PixInsight does a pretty good job of mosaics, in my opinion. You just need to get a reasonable amount of overlap; enough to allow star alignment in the overlapping areas.

Comment by Dave Lane on November 13, 2013 at 7:36am

Fantastic work!! Just getting started on a couple of mosaics. What do you use to combine them?