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08/31/2021 – Ephemeris – Previewing September skies

31 Aug 2021, 04:01 UTC
08/31/2021 – Ephemeris – Previewing September skies
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This is Bob Moler with Ephemeris for Tuesday, August 31st. Today the Sun will be up for 13 hours and 16 minutes, setting at 8:20, and it will rise tomorrow at 7:05. The Moon, 1 day past last quarter, will rise at 1:07 tomorrow morning.
Let’s look at the skies for the month of September. The sun will be 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 13 minutes tomorrow to 11 hours and 44 minutes on the 30th. The altitude of the Sun above the southern horizon at local noon will be 54 degrees tomorrow, and will descend to 42 degrees on the 30th. Local noon at mid-month will be around 1:37 pm. The season of summer is getting short, so enjoy it while you can. Summer ends and autumn begins at 3:21 p.m. on September 22nd, the autumnal equinox. This year the Harvest Moon, the nearest full moon to the equinox, will fall two days before it on the 20th.
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT – 4 hr). They may be ...

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