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Re: APOD: Chamaeleon Dark Nebulas (2022 Jan 17)

Posted: Wed Jan 19, 2022 5:48 pm
by Chris Peterson
neufer wrote: Wed Jan 19, 2022 4:00 pm
Chris Peterson wrote: Tue Jan 18, 2022 8:32 pm
neufer wrote: Tue Jan 18, 2022 8:25 pm
In any event, do you think that the illumination here is due to embedded T Tauri stars?
My guess is that the illumination here is external. Dust reflecting starlight.
Antares can barely light up its own local dust cloud: https://apod.nasa.gov/apod/ap190827.html
Looks VERY lit up to me!

Re: APOD: Chamaeleon Dark Nebulas (2022 Jan 17)

Posted: Wed Jan 19, 2022 9:55 pm
by neufer
Chris Peterson wrote: Wed Jan 19, 2022 5:48 pm
neufer wrote: Wed Jan 19, 2022 4:00 pm
Chris Peterson wrote: Tue Jan 18, 2022 8:32 pm
My guess is that the illumination here is external. Dust reflecting starlight.
Antares can barely light up its own local dust cloud: https://apod.nasa.gov/apod/ap190827.html
Looks VERY lit up to me!
Antares has competition: https://apod.nasa.gov/apod/ap201014.html