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Ephemeris: 06/27/2025 – Star party tomorrow night at the Sleeping Bear Dunes
This is Ephemeris for Friday, June 27th. Today the Sun will be up for 15 hours and 33 minutes, setting at 9:32, and it will rise tomorrow at 5:59. The Moon, 2 days past new, will set at 11:44 this evening.
Weather permitting, the Grand Traverse Astronomical Society and the Park Rangers will host a star party at Sleeping Bear Dunes National Lakeshore, at the Dune Climb starting around 9:00 PM. The parking lane closest to the dune will be blocked off for telescopes. Note… the start time is before actual sunset, however the Moon should be visible from near sunset and after until nearly 11 PM Also on tap will be binary stars, an interesting treat through the telescope. The Rangers leave around 11:00 PM however if it stays clear and there’s enough interest, society members with their telescopes will stay longer. Two other star parties are planned this summer: on July 26th and August 23rd.
The astronomical event times given in this blog are for the Traverse City/Interlochen area of Michigan (Lat 44.7° N, Long 85.7° W; EDT, UT – 4 hours) unless stated otherwise. Times will be different for other locations.
Addendum
Ephemeris: 06/06/2025 – GTAS meeting tonight
This is Bob Moler with Ephemeris for Friday, June 6th. Today the Sun will be up for 15 hours and 27 minutes, setting at 9:25, and it will rise tomorrow at 5:57. The Moon, 4 days past first quarter, will set at 3:32 tomorrow morning. | The Grand Traverse Astronomical Society will host its May meeting tonight at 9 PM at Northwestern Michigan College’s Joseph H Rogers Observatory. The talk for the evening is a mystery to me, and I’m the Newsletter Editor. However, since I’ve given more programs than any other to the group, I will have a presentation old or new, if the need arises. After the meeting, around 10 PM, weather permitting, there will be viewing of the Moon and whatever we can find in the twilight. The observatory is located south of Traverse City on Birmley Rd. The meeting will also be available via Zoom. Instructions will be on the society’s website, gtastro.org.
The astronomical event times given in this blog are for the Traverse City/Interlochen area of Michigan (Lat 44.7° N, Long 85.7° W; EDT, UT – 4 hours) unless stated otherwise. Times will be different for other locations.
Addendum
Ephemeris: 05/02/2025 – GTAS meeting ~ Deep sky wonders for the small telescope
This is Ephemeris for Friday, May 2nd. Today the Sun will be up for 14 hours and 18 minutes, setting at 8:49, and it will rise tomorrow at 6:29. The Moon, 2 days before first quarter, will set at 2:47 tomorrow morning.
The Grand Traverse Astronomical Society will host its May meeting tonight at 9 PM at Northwestern Michigan College’s Joseph H Rogers Observatory. The talk for the evening will be given by Mary Gribbin presenting the program titled Exploring Deep Space Objects with Small Telescopes by Season. Deep Space Objects, better known as Deep Sky Objects or DSOs, are things that reside beyond the solar system which are generally only visible in telescopes, like star clusters, galaxies and nebulae, which are clouds. After the meeting, weather permitting, there will be viewing of the Moon and whatever we can find in the twilight. The observatory is located south of Traverse City on Birmley Rd. The meeting will also be available via Zoom, with instructions for joining the meeting on the society’s website, http://www.gtastro.org.
The astronomical event times given in this blog are for the Traverse City/Interlochen area of Michigan (Lat 44.7° N, Long 85.7° W; EDT, UT – 4 hours) unless stated otherwise. Times will be different for other locations.
Addendum
The above are two of the many wonders for owners of a small telescope.
Ephemeris: 04/04/2025 – GTAS Meeting tonight – Astronomy Advancement Outside the Western World
This is Ephemeris for Friday, April 4th. Today the Sun will be up for 12 hours and 57 minutes, setting at 8:14, and it will rise tomorrow at 7:15. The Moon, at first quarter today, will set at 4:12 tomorrow morning.
The Grand Traverse Astronomical Society will host its April meeting tonight at 8 PM at Northwestern Michigan College’s Joseph H Rogers Observatory. The talk for the evening will be given by Grace Kolbusz, with the student astronomy club at Northwestern Michigan College, will present the program titled Astronomy Advancement Outside the Western World. After the meeting, weather permitting, there will be viewing of the Moon and Jupiter and whatever we can find in the twilight. The observatory is located on Birmley Rd. South of Traverse City between Garfield and Keystone roads. The meeting will also be available via Zoom. Instructions to join the meeting will be on the society’s website, gtastro.org.
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT – 4 hours). Times will be different for other locations.
Addendum
All I know about Grace’s talk is the title. It conjures up astronomy of different cultures, perhaps those of India, China or even the Maya in Central America. In the past I have delved with my December programs, for the GTAS, into ancient astronomies of other cultures. I’ve looked at the Egyptians, Babylonians and the Greeks. And dabbled a little bit with the Mayan culture in their studies of the motions of the planet Venus. So I’m interested in what she comes up with, so I don’t overlap.
Ephemeris: 03/07/2025 – GTAS Meeting tonight (also on Zoom): Previewing 3/14’s total lunar eclipse
This is Ephemeris for Friday, March 7th. Today the Sun will be up for 11 hours and 29 minutes, setting at 6:38, and it will rise tomorrow at 7:07. The Moon, 1 day past first quarter, will set at 4:28 tomorrow morning.
The Grand Traverse Astronomical Society will host its February meeting tonight at 8 PM at Northwestern Michigan College’s Joseph H Rogers Observatory. The talk for the evening will be given by yours truly. One week from today, Friday, March 14th in the early morning hours, there will be a total eclipse of the Moon. That is my subject. I will explore some notable lunar eclipses of the past, what they are, and why we don’t see them every full moon. I’ll talk about other facts about lunar eclipses. The observatory is located on Birmley Rd. South of Traverse City between Garfield and Keystone roads. The meeting will also be available via Zoom. Instructions to join the meeting will be on the society’s website, gtastro.org.
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EST, UT – 5 hours). Times will be different for other locations.
Addendum
Ephemeris: 02/07/2025 – GTAS meeting tonight – Earth’s Impact Craters
This is Ephemeris for Friday, February 7th. Today the Sun will be up for 10 hours and 6 minutes, setting at 6:00, and it will rise tomorrow at 7:52. The Moon, 2 days past first quarter, will set at 5:36 tomorrow morning.
The Grand Traverse Astronomical Society will host its February meeting tonight at 8 PM at Northwestern Michigan College’s Joseph H. Rogers Observatory. The talk for the evening will be given by Society President, and Observatory Director, Jerry Dobek on the topic of Earth’s Impact Craters. Unlike the Moon, Earth’s impact craters have been mostly hidden. After the meeting, about 9 PM if it’s clear, there will be viewing of the heavens through the observatory’s telescopes, featuring Jupiter, the Moon and the Great Orion Nebula, which will be hindered a bit by moonlight. The observatory is located on Birmley Road. South of Traverse City between Garfield and Keystone roads. All are welcome, free of charge.
The meeting is also available on Zoom. The link is at gtastro.org
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EST, UT – 5 hours). Times will be different for other locations.
Addendum
Ephemeris: 01/03/2025 – GTAS Telescope Clinic tonight
This is Ephemeris for Friday, January 3rd. The Sun will rise at 8:20. It’ll be up for 8 hours and 55 minutes, setting at 5:15. The Moon, 3 days before first quarter, will set at 9:37 this evening.
Did you or someone in your family get a telescope for Christmas, or have one in a closet or attic because you don’t know how to put it together or how to operate it? Or maybe you are trying to figure out which one to buy. Well, tonight’s your night. The Grand Traverse Astronomical Society (GTAS) will host the annual Telescope Clinic starting at 8 pm at Northwestern Michigan College’s Rogers Observatory. Professor Jerry Dobek will demonstrate the types of telescopes and how to use them. He and other members may be able to help particular problems by seeing participants telescopes, so “bring ‘em if you’ve got ‘em.” This is interesting to say the least. Go to gtastro.org for information and a Zoom link for the meeting.
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EST, UT – 5 hours). Times will be different for other locations.
Addendum
Ephemeris: 12/06/2024 – Historical search for the Star of Bethlehem tonight
This is Ephemeris for Friday, December 6th. Today the Sun will be up for 8 hours and 56 minutes, setting at 5:02, and it will rise tomorrow at 8:06. The Moon, 2 days before first quarter, will set at 10:31 this evening.
Tonight at 8 p.m. I will be giving a talk investigating what the Star of Bethlehem may have been. This will be at Northwestern Michigan College’s Rogers Observatory located south of Traverse City on Birmley Road. The talk is a scientific treatment of the matter, rather than a religious one. We’ll look at the usual suspects for what the star may have been. And we’ll see what the Gospel writers may have gotten right and possibly wrong. We’ll look at historical writings and recorded Chinese observations of the heavens around that time. I will augment this with computer simulations of what might be important celestial events visible around that time. There is no admission charge. There will be viewing of the skies afterward if it’s clear.
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EST, UT – 5 hours). Times will be different for other locations.
Addendum
Ephemeris: 11/01/2024 – Grand Traverse Astronomical Society Meeting tonight
This is Ephemeris for Friday, November 1st. The Sun will rise at 8:21. It’ll be up for 10 hours and 9 minutes, setting at 6:30. The Moon is new today, and won’t be visible.
The Grand Traverse Astronomical Society will host its November meeting tonight at 8:00 PM at Northwestern Michigan College’s Joseph H Rogers Observatory. This will be an unstructured meeting, and a good time for anyone interested to ask knowledgeable members anything about the sky or, since Christmas is coming, about what kind of telescope to buy. Afterward, about 9 PM if it’s clear, there will be viewing of the heavens through the observatory’s telescopes, featuring Saturn, Jupiter and the wonders of the Milky Way, including nebulae, open and globular star clusters, containing hundreds to hundreds of thousands of stars. The observatory is located on Birmley Rd. South of Traverse City between Garfield and Keystone roads.
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT – 4 hours). Times will be different for other locations.
Addendum
One of the discussion items will be the currently active sun in how it affects the earth.
Ephemeris: 10/04/2024 – GTAS meeting & star party tonight
This is Bob Moler with Ephemeris for Friday, October 4th. Today the Sun will be up for 11 hours and 31 minutes, setting at 7:16, and it will rise tomorrow at 7:46. The Moon, 2 days past new, will set at 7:51 this evening. | The Grand Traverse Astronomical Society will host its October meeting tonight at 8:00 PM at Northwestern Michigan College’s Joseph H Rogers Observatory, featuring the society’s Library Telescope program. For over five years now the society has given small telescopes to a number of local libraries and branches to lend out. It has been quite successful. After the meeting, about 9 PM if it’s clear, there will be viewing of the heavens through the observatory’s telescopes, featuring Saturn and the wonders of the Milky Way, including nebulae, open and globular star clusters, containing hundreds to hundreds of thousands of stars. The observatory is located on Birmley Rd. South of Traverse City between Garfield and Keystone roads.
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT – 4 hours). Times will be different for other locations.
Addendum
Bob Moler's Ephemeris Blog 