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Utilities
Convert Solar Longitude to JD & Date
Calculate the peak of a meteor shower
Calculate the
Julian day
from solar longitude referred to equinox J2000.0
The algorithm is stable between 1900 and 2100 and its accuracy is better than 0.02 days.
Solar Longitude
J2000.0 Equinox
or choose from list:
Quadrantids
delta-Cancrids
alpha-Centaurids
delta-Leonids
gamma-Normids
Virginids
Lyrids
pi-Puppids
eta-Aquarids
Sagittarids
June Bootids
Pegasids
July Phoenicids
Piscis Austrinids
Southern delta-Aquarids
alpha-Capricornids
Southern iota-Aquarids
Northern delta-Aquarids
Perseids
kappa-Cygnids
Northern iota-Aquarids
alpha-Aurigids
delta-Aurigids
Piscids
Draconids
epsilon-Geminids
Orionids
Southern Taurids
Northern Taurids
Leonids
alpha-Monocerotids
chi-Orionids
Phoenicids
Puppid-Velids
Monocerotids (Dec)
sigma-Hydrids
Geminids
Coma Berenicids
Ursids
Month
Year
Julian Day
UT
Year
Month
Day
Hour
UT
Constructed: November 1998, by:
Eran Ofek
