Search found 3 matches

by dx_ray
Tue Nov 10, 2020 10:33 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: In Green Company: Aurora over Norway (2020 Nov 09)
Replies: 20
Views: 8614

Re: APOD: In Green Company: Aurora over Norway (2020 Nov 09)

The caption is very clear that the image is a composite of three exposures. That is normal photographic technique for any high dynamic range subject. HDR should not affect stars. Please zoom in to 100% and take a closer look. Stars are messed up due to the manipulation. Can you recognize any conste...
by dx_ray
Tue Nov 10, 2020 12:33 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: In Green Company: Aurora over Norway (2020 Nov 09)
Replies: 20
Views: 8614

Re: APOD: In Green Company: Aurora over Norway (2020 Nov 09)

This is NOT an honest astrophotography. If you zoom in the image, you can see many manipulations, like patches with different size of noise, or star dots in different sizes. This means that, those patches come from different images. I guess such manipulation is to make the circular shape of the aur...
by dx_ray
Mon Nov 09, 2020 6:26 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: In Green Company: Aurora over Norway (2020 Nov 09)
Replies: 20
Views: 8614

Re: APOD: In Green Company: Aurora over Norway (2020 Nov 09)

This is NOT an honest astrophotography. If you zoom in the image, you can see many manipulations, like patches with different size of noise, or star dots in different sizes. This means that, those patches come from different images. I guess such manipulation is to make the circular shape of the auro...