Search found 2 matches

by fredk
Wed Nov 20, 2024 5:31 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Barred Spiral Galaxy NGC 1365 from Webb (2024 Nov 13)
Replies: 24
Views: 1764

Re: APOD: Barred Spiral Galaxy NGC 1365 from Webb (2024 Nov 13)

I contacted the Webb news team about this. They agreed the release was confusing and say they'll try to make it clear that these are diffraction spikes in future releases.
by fredk
Thu Nov 14, 2024 3:39 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Barred Spiral Galaxy NGC 1365 from Webb (2024 Nov 13)
Replies: 24
Views: 1764

Re: APOD: Barred Spiral Galaxy NGC 1365 from Webb (2024 Nov 13)

It's not clear from the APOD caption or the Webb release, but the straight red rays near the centre of NGC 1365 in the APOD image are diffraction spikes due to the bright compact sources around the nucleus, not actual features in the galaxy. They're more obvious as diffraction spikes in the partner ...