| Northamptonshire Natural History Society |
| Astronomy Section |
Useful Software and Freeware
| Registax - Image Stacking and Processing Software |
| AVIS - FITS Viewer |
| IRIS - Image Processing Software |
| Messier / Caldwell Observing Logs |
| Helio - Sunspot Longitude/Latitude Software |
| Celestia - Planetrium Software |
| Astrostack - Image Stacking Software |
| Virtual Moon Atlas |
| K3CCD Tools - Image Processing Software |
| DarkAdapted - Adjusts your PC to Preserve your Night Vision |