Archive
09/02/11 – Ephemeris – Local astronomical events this weekend
Friday, September 2nd. The sun will rise at 7:05. It’ll be up for 13 hours and 11 minutes, setting at 8:17. The moon, 2 days before first quarter, will set at 10:33 this evening.
Impact glass, the earthly sand, fused by the impacts of meteorites will be the topic at this evening’s meeting of the Grand Traverse Astronomical Society at 8 p.m. at Northwestern Michigan College’s Rogers Observatory. Society President Richard Kuschell has become fascinated with meteorites and this impact glass and has several samples to show. As always the public is welcome. Tomorrow evening the society will host a public viewing night at the observatory. On tap, if it’s clear will be the moon and later in the evening Jupiter. The sky will also be dark enough to view some of the wonders of the summer Milky Way. The observatory is located south of Traverse City of Birmley Roan between Garfield and Keystone roads.
* Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
09/01/11 – Ephemeris – Preview of September skies
Thursday, September 1st. The sun will rise at 7:04. It’ll be up for 13 hours and 14 minutes, setting at 8:19. The moon, 3 days before first quarter, will set at 9:53 this evening.
Let’s look at the skies for the month of September. The sun will moving at its greatest speed in its retreat to the south. Daylight hours in the Interlochen/Traverse City area and will drop from 13 hours and 14 minutes today to 11 hours 46 minutes on the 30th. The altitude of the sun above the southern horizon at local noon will be 54 degrees today, and will descend to 42 degrees on the 30th. The Straits area will see the sun a degree lower. The season of summer is getting short, so enjoy it while you can. Summer ends and autumn begins at 5:05 a.m. on September 23rd. We are losing Saturn into the evening twilight but it will be replaced in the evening sky by Jupiter rising earlier by a half hour each week.
* Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Bob Moler's Ephemeris Blog 