Limiting altitude separation in the new moon's first visibility criterion
Abstract
The minimum altitude separation between the moon and the setting sun for new moon's earliest visibility is found to be close to 4°. This result together with an earlier study on limiting elongation makes the new Moon's earliest visibility criterion most complete and comprehensive.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- November 1988
- Bibcode:
- 1988A&A...206..133I
- Keywords:
-
- Celestial Mechanics;
- Elevation Angle;
- Lunar Phases;
- Azimuth;
- Sunset;
- Visibility;
- Astronomy