Description

Please no hate, I'm genuinely curious if anyone knows what this is. I took a 5-minute astrophotography time lapse on my Google Pixel and when I looked back at the final shot, I noticed this triangle formation in the sky. It appears to stay stationary when compared to the stars moving from Earth's rotation. It also looks like the clouds slightly affect the brightness and dimness of the formation which makes me think it's not a lens flare or reflection.

Could this be a satellite? I took another time lapse video about 30 minutes later and the triangle formation was gone.

Time: 4/1/25, 9:28pm PST

Location: SW Washington State