Seattle Stargazer

Exploring the cosmos under a double overcast

M42: Nebular Bugaloo

2025-03-01 Photos CloudLooker9000

Photo Notes
ISO 8000
Exposure 30s
# of Frames 2181
Filter SV220
Processing PixInsight

I have been doing some learning–I can’t explain myself yet, but I’m starting to grasp some loose concepts:

  • Since I am under a lot of light pollution, I think shorter exposure times (and more of them) should be helpful
  • My camera has big pixels (and a lot of them!), which means I’m “undersampled”, which means I should try “drizzling”
  • My tracking mount, being of the strain wave persuasion, likes “high frequency guiding” (in this case, I lowered my guide camera exposure to 1s)

Once I actually figure out what all this means and how it works, I’ll be back to explain it. Meanwhile, I think it’s successful–I’m really proud of this picture!


  1. Not included: 80 additional exposures of a blurry tree ↩︎