[ChrisD (Chris)]

I thought I would try something different, some scientific imaging, to see if I could wring enough precision out of collection of cheap telescope bits to record an exoplanet transit.

It took me 5 attempts over 3 months until everything co-operated (mostly).

I suspected that i'd made a timing error when the actual ingress time was out by 12 minutes compared to the exoplanet transit ephemeris predicted ingress.
However, I found results from the 2 meter telescope at Siding Springs Observatory from 2021 that was around 6 minutes early. Maybe TOI-3486.01s year is a bit shorter than believed.

TOI-3486.01 is a little smaller than Jupiter and orbits its star TIC-221861843.01 in around 2.22 days. TIC-221861843.01 is about 20% smaller than our Sun.

I used a C8 on a HEQ-5 and a Player-One Poseidon-C IMX571 based camera.
Processed with ASTAP and AstroImageJ.

What a world we live in, where an old guy in a backyard in Melbourne can detect a planet around another star.

Chris