Search found 2 matches

by khjalmarj
Sun Apr 09, 2023 1:47 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The Egg Nebula in Polarized Light (2023 Apr 09)
Replies: 7
Views: 2262

Re: APOD: The Egg Nebula in Polarized Light (2023 Apr 09)

Light reflected by a single dust grain is preferentially polarized. Light reflected by a WMO ("whole mess of") dust grains would be polarized only if the grains themselves were aligned by something. Reaching back into my "Gaseous Nebulae" class in grad school, I'm guessing that m...
by khjalmarj
Wed Aug 21, 2019 1:38 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The Orion You Can Almost See (2019 Aug 21)
Replies: 14
Views: 7749

Re: APOD: Orion You Can Almost See: Horsehead

Didja notice you can, if you zoom in sufficiently, make out the Horsehead? I think this is the first time I've seen that in a wide-angle photo. Gorgeous!