The following star fields can be used to perform photometric calibrations using standard stars and the AAVSO PHOT software. For Seestar use Jnow coordinates!
AAVSO Standard Fields with larger FoV
Northern Sky
| Name | Rec(J2000) | Dec(J200) | Rec(Jnow ) | Dec(Jnow) | No of Stars | Constellation | FoV /arcsec |
| NGC 7790 | 23:58:31.32 | 61:12:09:.0 | 218 | Cassiopeia | 20 | ||
| M67 | 8:51:21.21 | 11:48:02.4 | 211 | Cancer | 20 | ||
| Melotte 111 | 12:24:30 | 25:51:30 | 12:25:45.11 | 25°43’11.10″ | 90 | Coma Berenices | 180 |
| SA 20 | 0:45:51.17 | 45:53:06.2 | 0:47:15.02 | 46°01’16.10″ | 23 | Virgo | 40 |
| SA 35 | 15:52:27.49 | 44:42:27.8 |
AAVSO Standard Fields
Southern Sky