Bob Moler's Ephemeris Blog

Ephemeris for Thursday, August 9th.  The sun rises at 6:38.  It’ll be up for 14 hours and 17 minutes, setting at 8:56.   The moon, at last quarter today, will rise at 12:24 tomorrow morning.

Lets take a look at what will happen this weekend with the Perseid meteor shower.  We seem to have two meteoroid streams intercepting the earths.  The earth will pass through the classic stream Saturday night, Sunday morning.  The earth is expected to pass through a second stream Sunday Night, Monday morning.  In the early evening the meteors are fewer, but the trails will be longer.  The meteors will seem to come from the constellation of Perseus which lies below the W shaped constellation of Cassiopeia in the northeast.  At two or three in the morning will see the greatest numbers of meteors, up to 60 meteors an hour.  Tomorrow I’ll tell you about two events and places to go to join others in viewing the shower.

Times are for the Traverse City/Interlochen area of Michigan.  They may be different for your location.

Addendum

Perseid radiant at 10:30 p.m.

Perseid Meteor Shower radiant after midnight