Convert Draconic Months to Anomalistic Months
Convert Draconic Months (drac.mo) to Anomalistic Months (anom.mo) instantly and accurately.
Conversion Formula
anom.mo = drac.mo × 0.9875762432
About Draconic Months
The draconic (nodical) month = 27.2122 days = 2,351,135.8 s - the interval between successive Moon passages through the same orbital node. Named from the Latin 'draco' (dragon): eclipses only occur near the nodes, where the Moon can align with the Sun or Earth's shadow. The Saros cycle (18 yr 11 d) equals ~242 draconic months, enabling eclipse sequence forecasting. 1 drac.mo = 27.2122 d.
About Anomalistic Months
The anomalistic month = interval between successive Moon perigees = 27.5546 days = 2,380,713.2 s. Slightly longer than the sidereal month because the Moon's perigee precesses, completing one revolution in ~8.85 years. Governs 'supermoons': a full moon at perigee appears ~14% wider and 30% brighter. Tidal forces at perigee are ~30% stronger than at apogee. 1 anom.mo = 27.5546 d.
Quick Reference Table
| Draconic Months (drac.mo) | Anomalistic Months (anom.mo) |
|---|---|
| 1 drac.mo | 0.987576 anom.mo |
| 2 drac.mo | 1.97515 anom.mo |
| 5 drac.mo | 4.93788 anom.mo |
| 10 drac.mo | 9.87576 anom.mo |
| 25 drac.mo | 24.6894 anom.mo |
| 50 drac.mo | 49.3788 anom.mo |
| 100 drac.mo | 98.7576 anom.mo |