I have often seen Sirius flash in the morning like a stoplight. I wondered if I could video the event with my iPhone afocally. It worked. I added a diffraction spike net to the front of the Dob to spread the light a bit and enhance any colors. (The diffraction spike net is a ten inch embroidery hoop with six fishing line spikes that spread the light.

Dobsonian 10.1” home built from my Coulter. (Most of the MDF replaced with aluminum). iPhone 12 clamped to a Plossl eyepiece.

Video of Sirius broken up into a random number of individual images. The images were cropped and combined into a collage using Paper by WeTransfer. No color post processing was done.