Comet, Asteroid, Satellite Data are downloaded to your Sky Data folder.
- Delete the Comets.txt, Asteroids.txt, Satellites.txt files from Sky Data
- Start Starry Night
- Go to Help > Download Data Updates to download again
- Check the Sky Data folder to see the new files have been downloaded
If after deleting the files you can not download them again using Help > Download Data Updates then you can re-download files manually from the URLs below, and put the new files in your Sky Data folder:
Satellite Magnitudes: https://data.starrynight.com/updates/158/SatelliteMagnitudes.txt
Open the Comets.txt file and SEARCH for "C/2020 F3".
Did you find it? Then NeoWise is in there!
And, lastly, importantly:
- In SN7/SN8 > File > Preferences > Start Up > increase the number of comets read in to 10,000.
- Restart SN7/SN8
- Search for C/2020 F3