Comet PANSTARRS

Starting about March 7, 2013. PANSTARRS will appear above the western horizon after sunset for Northern Hemisphere viewers. To see it, you will need an unobstructed, cloudless view of the west after sunset. It is best to pick a dark spot, away from streetlights. Look in the sunset direction, as soon as the sky darkens. The comet will be just above the horizon.



March 10. The comet passes closest to the sun – as close as our sun’s innermost planet, Mercury – at 0.30 AU – or about 28 million miles (45 million kilometers). Comets are typically brightest and most active around the time they are closest to the sun when solar heating vaporizes ice and dust from the comet’s outer crust. Not only will the comet quickly brighten, but it should also develop the long classic comet dust tail.

Around March 12 and 13. Moonlight will interfere with the darkness of the night sky, but there should be some wonderful photo opportunities as the young moon returns to the same part of the sky as the comet.

Throughout March 2013. The comet could be visible in the Northern Hemisphere evening sky low in the west after sunset. It will move northward each evening during March 2013 as it moves from being in front of the constellation Pisces to being in front of the constellations Pegasus and Andromeda. At this time, the comet might have a bright dust tail, and perhaps visible to the unaided eye or binoculars. It should, at least, if it lives up to expectations. Remember to look for the comet in the vicinity of the waxing crescent moon on March 12, 13 and 14. The comet swings above the star Algenib on March 17/18, and above the star Alpheratz on March 25/26.

Thanks to http://earthsky.org/

Learn more about comets:
http://www.bbc.co.uk/science/space/solarsystem/other_solar_system_bodies/comet