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06/30/11 – Ephemeris – July Preview
Thursday, June 30th. Today the sun will be up for 15 hours and 30 minutes, setting at 9:31. The moon, 1 day before new, will rise at 6:17 tomorrow morning. Tomorrow the sun will rise at 6:01.
Lets preview July’s skies. The sun, having reached its northern solstice, is beginning to slide southward again, at first imperceptibly, then with greater speed. The daylight hours will decrease from 15 hours and 30 minutes Tomorrow to 14 hours 41 minutes at month’s end. The daylight hours will be slightly shorter south of Interlochen, and slightly longer to the north. The altitude of the sun at local noon, when the sun is due south will decrease from 68 degrees Tomorrow to 63 degrees at month’s end. The sun will be a degree lower in the Straits area. Despite the warmth, the earth will reach its greatest distance from the sun on Monday the 4th. The range of the earth’s distance from the sun is 3 million out of 93 million miles.
* Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
05/31/11 – Ephemeris – June preview
Tuesday, May 31st. Today the sun will be up for 15 hours and 18 minutes, setting at 9:19. The moon, 1 day before new, will rise at 5:38 tomorrow morning. Tomorrow the sun will rise at 6:00.
Let’s preview June skies. There will be a lot of sun in June and very little night. The daylight hours will increase a bit from 15 hours and 19 minutes tomorrow to 15 hours and 33 minutes on the 21st, retreating back to 15 hours 30 minutes at month’s end. At this time of the year the sunset times for Ludington, Interlochen, Petoskey and Mackinaw City are very nearly the same. However the sunrise times are at their most divergent. With Ludington’s sunrise being 14 minutes later than Mackinaw City’s. The altitude of the sun above the southern horizon at local noon will hover around 68 to 69 degrees. Local noon, when the sun is actually due south will occur at about 1:43 p.m. Here’s what we’ve been waiting for: Summer will start on the 21st at 1:16 p.m.
* Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Bob Moler's Ephemeris Blog 