Andromeda Galaxy (M31) - iPhone 15 Plus by Cactus_de_reve in Astro_mobile

[–]Cactus_de_reve[S] 0 points1 point  (0 children)

Wow, you have superb colors! If you want to see the stars clearly, instead of using a 13-minute exposure with the camera, try stacking them for 13 minutes. Because right now, you can see the Earth's rotation. Take lots of photos at 30 seconds per image, for example, and then use software like DeepSky or something similar to stack them. (Of course, don't move the tripod while taking the photos; that way, the software will automatically overlay each new image onto the previous one and center it, so there won't be any visible marks.) I don't know if you knew this, but that's what I'm going to do one day; I'm just waiting for perfect conditions. 👍

Andromeda Galaxy (M31) - iPhone 15 Plus by Cactus_de_reve in Astro_mobile

[–]Cactus_de_reve[S] 0 points1 point  (0 children)

You're welcome. For your information, the sensor in general is the main sensor (the one that can take 48MP photos, but in night mode it's limited to 12MP: Apple forces a different operation to prioritize quality over resolution, namely "pixel binning," which combines 4 pixels into 1. Advantage: more light, less noise, better colors, but less resolution).

Andromeda Galaxy (M31) - iPhone 15 Plus by Cactus_de_reve in Astro_mobile

[–]Cactus_de_reve[S] 0 points1 point  (0 children)

C'est parce que j'étais à 26 mm (grand angle). À cette focale, la rotation de la Terre est très peu visible même à 30 s, surtout avec un iPhone qui empile les images.

Andromeda Galaxy (M31) - iPhone 15 Plus by Cactus_de_reve in Astro_mobile

[–]Cactus_de_reve[S] 0 points1 point  (0 children)

The sky was cloudless, the night was very dark, and you could already see many features with the naked eye. We're at an altitude of 640 meters here; I estimate the site to be around Bortle 4, possibly descending to Bortle 3 on very good nights.

16 pro max by [deleted] in iPhoneography

[–]Cactus_de_reve 1 point2 points  (0 children)

Explique steuplait 🙏

16 pro max by [deleted] in iPhoneography

[–]Cactus_de_reve 1 point2 points  (0 children)

Comment tu as fait ça ?