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09/28/2017 – Ephemeris – View the Moon and Saturn tonight at the library

September 28, 2017 Comments off

Ephemeris for Thursday, September 28th. The Sun will rise at 7:37. It’ll be up for 11 hours and 51 minutes, setting at 7:28. The Moon, 1 day past first quarter, will set at 1:05 tomorrow morning.

Tonight the Grand Traverse Astronomical Society will set up their telescopes at the Traverse Area District Library Central Library on Woodmere Avenue in Traverse City from 7 to 9 p.m. weather permitting for a star party, though it won’t actually feature stars. It will feature the Moon in its gibbous phase and the planet Saturn probably after 8 p.m. We might also catch a glimpse of the Sun, since the event starts before sunset. The Sun’s sunspot activity has picked up a bit in the last month or so, since just before August’s solar eclipse. We’ve had a pretty sunspot-less early summer.

There will be a visible pass of the International Space Station, which will be high in the south at 8:30 p.m.  It will rise above the southwestern horizon at 8:25, and disappear into earth’s shadow at 8:33 p.m. in the south-southeast.  It will be visible from anywhere in Michigan, though the times may vary by a minute or so.  It’s traveling at 5 miles per second (8 km/s).

The library has a telescope, donated by the society and Enerdyne that they lend out, which has been in heavy demand. See the library for details.

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