observing aids
| Title | Posted By | Updated/commented date |
Type |
|---|---|---|---|
| Mentor Program | SXN | 43 weeks 4 days ago | Page |
| Computing the JD or UT | BSJ | 2 years 22 weeks ago | Page |
| Charts and Sequences Update September 2011 | SXN | 1 year 33 weeks ago | Page |
| AAVSO Bulletin | Matthew Templeton | 1 year 11 weeks ago | Forum topic |
