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Celestial Portraits

This site contains a personal collection of astronomy images taken with various astronomical instrument in selected locations around the world.


"Astronomers say the universe is finite, which is a comforting thought for those people who can't remember where they leave things."—Woody Allen

"With every passing hour our solar system comes forty-three thousand miles closer to globular cluster M13 in the constellation Hercules, and still there are some misfits who continue to insist that there is no such thing as progress."—Ransom K. Ferm.

Solar System Almanac Online Calculator

Solar System Almanac Online Calculator

Updates: The calculator currently pre-calculates the local time for you already and outputs in UTC. Please note that if the observer wishes to choose another date/time input, it must be chosen in UTC.
Presentation of the almanac results will be done as soon as the calculation algorithms are verified. Please be patient! :)
Updates 1: Included lunar phase calculation. Lunar perigee and apogee dates verified.
Updates 2: Included solar calculations. Inserted rise and set times for planets.
Updates 3: Included Jovian satellites positional determinants.
Updates 4: Included Saturnian satellites positional determinants. Not verified.
Updates 5: User input for latitude and longitude now enabled.
Updates 6: Saturnian satellite positions verified for first five satellites.
Updates 7: Added calculations for Great Red Spot transit times for Jupiter.

Date (UTC):

Time (24-hour format):

Geographical Location:

Custom Latitude: Custom Longitude:

Celestial Object:

Apply Bennett Refraction Correction for altitude