This was an ALERT object for ExoClock. Lost the last 30 minutes to clouds. Quite a bright parent star which actually makes it harder. Only 10s exposures which means a lot of subs to deal with. Gives good values for Rp/Rs, no residual structure but disagrees with the only previous observation – but I would say that other observation was an unclear result from the chart.
| Object ID | HAT-P-70b |
| Details | 2022-01-21 10:00 – 00:34 UT |
| Telescope | 250mm f4.8 Newtonian |
| Camera | Atik 460EX @-10°C Photometric R filter |
| Exposure(s) | 1097 x 10s 20 each darks, flats, bias |
| Capture | NINA |
| Processing | HOPS |