Archive
05/10/2013 – Ephemeris – Star party featuring the sun tomorrow
Ephemeris for Tuesday, April 23rd. The sun rises at 6:44. It’ll be up for 13 hours May 10. The sun rises at 6:20. It’ll be up for 14 hours and 38 minutes, setting at 8:58. The moon, 1 day past new, will set at 9:48 this evening.
This month The Grand Traverse Astronomical Society trying a new type of star party at the Sleeping Bear Dunes National Lakeshore. This will be tomorrow from noon to 2 p.m. if it’s clear. That is the star of our star party will be the sun. We’ve done these at other venues and festivals, but this is the first time we’re doing it at the park. Telescopes will be set up at the park headquarters in Empire. In addition to white light filtered telescopes, the society will also have a spacial solar telescopes to view the sun’s atmosphere and any prominences visible. Prominences are large red clouds of hydrogen that can hang over the sun in loops are flung away by solar flares. The white light telescopes will show any sunspots that are on the sun’s face.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
05/03/2013 – Ephemeris – Explore the sun and the stars tonight
Ephemeris for Friday, May 3rd. The sun rises at 6:29. It’ll be up for 14 hours and 20 minutes, setting at 8:49. The moon, 1 day past last quarter, will rise at 3:39 tomorrow morning.
Yours truly will present a talk about the sun and its effects on the earth at this evening’s meeting of the Grand Traverse Astronomical Society at Northwestern Michigan College’s Rogers Observatory starting at 8 p.m. This is a talk that is prepared to be given to the Friendly Garden Club later this month. It explores how the sun gets its energy and it emphases the life-giving radiation we receive from the sun and how plants, especially use it to create our green oxygenated world. Starting at 9 p.m. Is our first of our star parties for May at the observatory. Highlights, if its clear will be the planets Jupiter and Saturn, plus some of the bright wonders of the spring skies and maybe a star cluster or two. All are welcome.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
04/26/2013 – Ephemeris – First star party of the year at Sleeping Bear Dunes tomorrow night.
Ephemeris for Arbor Day, Friday, April 26th. The sun rises at 6:39. It’ll be up for 14 hours and 1 minute, setting at 8:41. The moon, 1 day past full, will rise at 10:06 this evening.
Tomorrow the Grand Traverse Astronomical Society will hold a star party at the Sleeping Bear Dunes National Lakeshore. It will be held at Platte River Point, west of Honor starting at about 8:30 p.m. The point is located at the end of Lake Michigan Road, off M22, less than a mile south of where Deadstream road meets M22. This is a very dark location and we have a little time near 11 p.m. When it will be quite dark before moonrise. The sequester has affected the park, but hasn’t so far affected our schedule. We have monthly star parties from now until October at various locations in the park. Next month the star we’ll be observing will be the sun, which we’ll do from the grounds of park headquarters in Empire. So come on out.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
04/19/2013 – Ephemeris Plus* – Astronomy Day and the Lyrid meteor shower
Ephemeris Plus for Friday, April 19th. The sun rises at 6:51. It’ll be up for 13 hours and 41 minutes, setting at 8:32. The moon, 1 day past first quarter, will set at 3:51 tomorrow morning.
Tomorrow is Astronomy Day 2013. Astronomy Day is generally held on the Saturday closest to the first quarter moon in late April or early May. The Grand Traverse Astronomical Society will celebrate with a star party at Northwestern Michigan College. Tomorrow April 20th, from 9 p.m. to 11 p.m. There will also be activities inside the observatory, so clear or cloudy there will be something to see or do for all ages.
The Lyrid Meteor Shower will be active this weekend and reach a peak Monday morning. The meteors from this shower will seem to come from near the constellation of Lyra the harp, a northern summer constellation, with the bright star Vega with a small and narrow parallelogram of stars near it. We do have a moon problem this year, so it just might be caught by early risers in the next couple of mornings. It is not a super active shower, and has a peak rate of only 18 and hour when Vega is overhead, which it will be at 5 in the morning. With the experience of the bright meteor that broke windows in Russia, be comforted to know that meteor showers members are created with very small grains, not big boulders.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
*Ephemeris Plus contains more information in the post’s body that could not fit into the time constraints of the Ephemeris program.
Addendum
Lyrid meteor radiant. The bright star is Vega
04/05/2013 – Ephemeris – Astronomy meeting and a star party tonight.
Ephemeris for Friday, April 5th. The sun will rise at 7:15. It’ll be up for 12 hours and 59 minutes, setting at 8:15. The moon, 2 days past last quarter, will rise at 5:06 tomorrow morning.
Trixie and Kevin Pickard will preset a program this evening entitled Heavenly Signs at this evening’s meeting of the Grand Traverse Astronomical Society at Northwestern Michigan College’s Rogers Observatory starting at 8 p.m. Trixie has been one of our members since she was in high school. Her main interest has been the manned space program. But I am assured that this topic is not about that. Starting at 9 p.m. Is our March star party at the observatory. Highlights, if its clear will be the planet Jupiter and the wonders of the winter sky including the Great Orion Nebula. Towards the end of the evening Saturn will rise. It will be rather low in the sky and fuzzy. But it is Saturn after all. All are welcome.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
03/15/2013 – Ephemeris – The latest on Comet PanSTARRS and possible viewing Saturday
Ephemeris for Friday, March 15th. The sun will rise at 7:54. It’ll be up for 11 hours and 54 minutes, setting at 7:48. The moon, half way from new to first quarter, will set at 12:14 tomorrow morning.
This past Wednesday evening it was clear around here and Comet PanSTARRS was visible very low on the western horizon. Estimates say the comet is now brighter than predicted. There’s wonderful images on http://spaceweather.com, and https://bobmoler.wordpress.com, the one on my blog was taken by Scott Anttila from Royal Oak last night. It should bode well for great viewing for the next week or so. The comet will set at 9:24 p.m. tonight. Saturday there will be a Star Party at the NMC Observatory starting at 9 p.m. Come a bit early and trudge through the snow a bit to see the comet. It isn’t visible from the building. Bring your binoculars, it’s the best way to see it, and hope for clear skies.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum
Comet PanSTARRS over Royal Oak, MI March 14, 2013. Photo taken by Scott Anttila. Click to enlarge.
Comet PanSTARRS from March 14, 2013 through the 17th. Created using Stellarium and Cartes du Ciel.
03/01/2013 – Ephemeris – Astronomical events in Traverse City tonight
Ephemeris for Friday, March 1st. The sun will rise at 7:19. It’ll be up for 11 hours and 11 minutes, setting at 6:30. The moon, 3 days before last quarter, will rise at 11:16 this evening.
Yours truly will present a talk, about the prospects for viewing Comet PanSTARRS at this evening’s meeting of the Grand Traverse Astronomical Society at Northwestern Michigan College’s Rogers Observatory starting at 8 p.m. Comet PanSTARRS will appear low in the western sky starting about March 11th. It is turning out at this point in time to be somewhat dimmer than expected. But one thing about comets is that the do the unexpected. I’ll also look at the asteroid close approach and the destructive Russian meteor. Starting at 9 p.m. Is our February star party at the observatory. Highlights, if its clear will be the planet Jupiter and the wonders of the winter sky including the Great Orion Nebula. All are welcome.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
02/01/2013 – Ephemeris – Local astronomical events tonight
Ephemeris for Friday, February 1st. The sun will rise at 8:00. It’ll be up for 9 hours and 50 minutes, setting at 5:51. The moon, 2 days before last quarter, will rise at 12:15 tomorrow morning.
A Star Bowl quiz will be held this evening between the NMC Astronomy Club and the Grand Traverse Astronomical Society at this evening’s meeting of the society at 8 p.m. at Northwestern Michigan College’s Rogers Observatory. The society will accept anyone to help us. These NMC students are smart. After the Star Bowl there will be a viewing night starting at 9 p.m. On tap if its clear will be the planet Jupiter. Orion and its great nebula, a star nursery only 1400 light years away will be a wonderful sight with its clouds and wisps of gas and dust illuminated by a clutch of hot baby stars. The Observatory is located south of Traverse City on Birmley Road off either Garfield or Keystone roads.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
01/15/2013 – Ephemeris – The red giant star with a funny name Betelgeuse (Beetle Juice), plus STEM Night tonight at Greenspire School
Ephemeris for Tuesday, January 15th. The sun will rise at 8:15. It’ll be up for 9 hours and 13 minutes, setting at 5:28. The moon, 3 days before first quarter, will set at 10:31 this evening.
The bright red star in constellation Orion’s shoulder is Betelgeuse, 643 light years away give or take 146 light years. Betelgeuse is a shortened form of an Arabic phrase that means “Armpit of the central one”. Orion is seen in the south in the evening. Even at its great distance it’s the star whose surface is easiest seen, after the sun of course. That’s because it’s so big. As somewhat larger around than the orbit of Jupiter, it turns out. Recent telescopic observations of Betelgeuse have shown plumes of gas surrounding the star. A star like Betelgeuse is so bloated that it can be described as a red hot vacuum, thus its edge or limb is much darker than its center. The sun has limb darkening too, but it is much less noticeable.
Tonight:
STEM (Science, Technology, Engineering, Mathematics) Night.
We’ll have Gary Carlisle and I will be there to view the moon and Jupiter if it’s clear, Make craters hands-on. I’ll be helping to make comets. Bring your gloves because comets are COLD! We’ll be representing the Grand Traverse Astronomical Society.
Times above are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum
Orion facing Taurus letting Lepus escape with Jupiter in 2013. Check out Betelgeuse. Created using Stellarium.
Betelgeuse and its nebula. From the European Southern Observatory’s Very Large Telescope.
Bob Moler's Ephemeris Blog 