Wandering through the realms of the cosmos, pondering its huge vastness

Posts tagged “moon-planet conjunctions

Moon Meets Jupiter – February 18, 2013

moon and jupiter- feb 18

Avid skywatchers had a chance to witness tonight’s close pairing between Jupiter and the First Quarter Moon — a nice sky event that kicked off the celebration of the National Astronomy Week 2013 in the Philippines. If you look closely at Jupiter in this image, you’ll also see a hint of its 4 Galilean moons.

During the closest approach, Jupiter and the Moon were 0.5 degree apart.  For comparison, the angle covered by the diameter of the full moon is about 31 arcmin or 0.5 degree.

moon angular measurement

Image credit: Las Cumbres Observatory Global Telescope Network

Astronomers use angular measurements to describe the apparent size of an object, or the distance between them. Knowing how to measure angular distance is an essential skill to finding your way around the sky.

Clear skies!


Moon, Mars and Antares – October 18, 2012

A few minutes after sunset last October 18, 2012, two reddish objects were found near the waxing crescent Moon (12% illuminated) in the western sky. These two bright red objects were actually the planet Mars, and the bright star Antares in the constellation Scorpius. Mars was about 2 degrees to the upper left from the Moon, and Antares about 4 degrees to the lower left from Mars.

Mars and Antares are often mistaken for each other because of their similarity in appearance. In fact, the name Antares means “Rival of Mars” in Greek.

All photos were taken using Canon Powershot SX40 HS. Some if the images were blurry. My camera got out of focus and i didn’t notice till it was too late! 😦

Click on the images to see larger versions.

The sky was extra clear that night. Amazed by the beauty of the starry night sky, I took my camera out again and snapped this photo while walking home: