C/2020 F3 (NEOWISE)
Comet C/2020 F3 (NEOWISE)
In this no-so-great-picture the comet is about 104 million km away, speeding at 54.000 km/h. The core is about 5 km in diamater, the tail is over 87.000 km long.
The annotated image below shows the path of the comet. The red crosses are the actual frames.
This video shows the appearent movement of the comet, as we measured it, compared to the field of stars. 12 minutes of movement sped up 182x times, to 4 seconds.
Technical details
This was shot trough the 250PDS that we only had for a few months. There was no coma corrector, hence the oddly shaped stars.
| Telescope | Skywatcher 250PDS (250/1250 Newton) |
| Filter | IDAS D2 (multi-bandpass light pollution filter) |
| Camera | Canon 7D Mark II |
| Resolution | 2601 x 1726 (cropped & scaled 50%) |
| Light frames | 23, 30s @ ISO 400, 11m30s in total |
| Bias/Dark/Flat | 21/21/11 |
| Location | Bolton, UK |
| Local time | 2020-07-20 22:04 - 22:29:14 |
| Image center | 9h45m24s +47°10'58" |
| Field of view | 1°21’ x 40’ (rotation -28°) |