Archive
08/19/2015 – Ephemeris – Saturn’s in the evening, but say “Good morning” to Mars
Ephemeris for Wednesday, August 19th. The Sun rises at 6:49. It’ll be up for 13 hours and 52 minutes, setting at 8:42. The Moon, 3 days before first quarter, will set at 10:59 this evening.
Lets take a look for the bright planets for this week. Saturn is alone in the evening sky spotted low in the southwestern sky near the bright star Antares to its lower left. It will set at 12:26 a.m. Venus crossed over to the morning sky last Saturday, and Jupiter is too close to the Sun to spot and will follow Venus into the morning sky on the 26th. Mars is now in the morning sky climbing away from the Sun. It’s probably too far away from the Earth and faint to spot in the morning twilight. It will rise tomorrow at 5:03. Venus will move away from the Sun and will rapidly become visible before sunrise by the end of the month. When Venus appears rather suddenly in the morning sky like this it prompts a few UFO reports.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum

Saturn and the Moon with southern summer constellations at 10 p.m. on August 19, 2015. Created using Stellarium.

Saturn as seen in a telescope. In small telescopes only Titan of all the moons will be visible. Created using Stellarium.
08/12/2015 – Ephemeris – One ringed planet and a sky full of meteors
Ephemeris for Wednesday, August 12th. The Sun rises at 6:41. It’ll be up for 14 hours and 12 minutes, setting at 8:53. The Moon, 2 days before new, will rise at 5:49 tomorrow morning.
Lets take a look for the bright planets for this week. Our brightest evening planets Venus and Jupiter are leaving the evening sky in the west. Venus is 3 days from inferior conjunction with the Sun. Saturn is in the south-southwest in the evening twilight. It can be spotted just to the right of the constellation of Scorpius the scorpion and its bright red star Antares below and right of it. Even small telescopes can see Saturn’s rings. The Perseid meteor shower will reach its peak overnight tonight. Your back yard is a fine spot to view the meteors, or for dark skies, I’ll be leading an all night meteor watch at the Sleeping Bear Dunes National Lakeshore’s Dune Climb if it’s clear. I’ll be there by 9 p.m. and it will be dark enough by 10:30.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum

Saturn and the summer Zodiacal constellations in the south at 10 p.m. August 12, 2015. Created using Stellarium.
Next week Wednesday we will also turn to the morning sky looking for Mars and awaiting Venus’ grand entrance into the dawn skies.
All-sky meteor charts from yesterday’s post
“PerR” is the Perseid radiant.
04/22/2015 – Ephemeris – All the bright planets are back now
Ephemeris for Earth Day, Wednesday, April 22nd. Today the Sun will be up for 13 hours and 49 minutes, setting at 8:36. The Moon, 3 days before first quarter, will set at 12:55 tomorrow morning. Tomorrow the Sun will rise at 6:45.
Lets take a look at the bright planets for this week. Mars and Mercury are in conjunction, that is close to each other low in the west just after sunset. Mars appears a bit lower and left of the brighter Mercury. Mars will set tonight at 9:47 with Mercury 5 minutes later. Our brilliant evening star Venus is high in the west by 9 p.m. It will set at 12:15 a.m. Jupiter will appear high in the southwestern sky in the evening. It will set at 3:58 a.m. It’s near the sickle-shaped head of Leo the lion, and it’s the second brightest star-like object in the sky after Venus. Saturn will rise in the east-southeast at 11:03 p.m. It will be low in the south at 5 to 6 a.m.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum

View to the west with Mars, Mercury, Venus and the Moon at 9:15 p.m. April 22, 2015. Created using Stellarium.

Jupiter, the Moon and the setting winter constellations at 10 p.m. April 22, 2015. Created using Stellarium.
04/15/2015 – Ephemeris – Besides Tax Day, it’s planets day on Ephemeris
Wednesday, April 15th, Tax Day. The Sun rises at 6:58. It’ll be up for 13 hours and 28 minutes, setting at 8:27. The Moon, 3 days before new, will rise at 5:44 tomorrow morning.
Lets take a look at the bright planets for this week. Our brilliant evening star Venus is high in the west by 9 p.m. It will set at 12:06 a.m. Mars appears much lower and to the right of it. The Red Planet will set tonight at 9:48. Jupiter will appear high in the southern sky in the evening. It will set at 4:25 a.m. It’s near the sickle-shaped head of Leo the lion, and it’s the second brightest star-like object in the sky after Venus. All four moons will be visible in telescopes tonight, Europa will be on the western side of Jupiter casting it’s shadow on the planet in the evening. Saturn will rise in the east-southeast at 11:32 p.m. It will be low in the south at 5 to 6 a.m.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Note: Due to some incorrect calculations the Jupiter moon phenomena in the broadcast program was in error. This transcript corrects that.
Addendum

Jupiter, Venus and Mars and remaining winter constellations at 9:30 p.m. April 15, 2015. Created using Stellarium.

Jupiter and moons as they would appear in a telescope at 9:30 p.m. April 15, 2015. Created using Cartes du Ceil (Sky Charts).

Closeup of Jupiter and Europa with its shadow cast on Jupiter at 9:30 p.m. April 15, 2015. Created using Cartes du Ceil (Sky Charts).

What Saturn and its moons might appear like in a telescope at 5:30 a.m., April 16, 2015. Small telescopes will show only the moon Titan. Created using Cartes du Ceil (Sky Charts).
04/08/2015 – Ephemeris – It’s bright planet night on Ephemeris
Ephemeris for Wednesday, April 8th. The Sun will rise at 7:11. It’ll be up for 13 hours and 7 minutes, setting at 8:18. The Moon, 3 days before last quarter, will rise at 12:34 tomorrow morning.
Lets take a look at the bright planets for this week. Our brilliant evening star Venus is high in the west by 9 p.m. It will set at 11:43 p.m. Mars appears much lower and to the right of it. The Red Planet will set tonight at 9:48. Jupiter will appear high in the southeastern sky in the evening. It will set at 4:52 a.m. It’s near the sickle-shaped head of Leo the lion, and it’s the second brightest star-like object in the sky after Venus. Three of the four moons will be visible in telescopes tonight, Callisto is behind Jupiter and will reappear at 4:42 a.m., shortly before Jupiter sets. Early risers will be able to spot Saturn which will rise in the east-southeast at 12:01 a.m. It will be low in the south at 5 to 6 a.m.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum

The Moon, Jupiter, Venus and Mars and remaining winter constellations at 9:30 p.m. April 8, 2015. Created using Stellarium.

Jupiter and three of its moons. Callisto is tagged, but is behind the planet at 9:30 p.m. April 8, 2015. Created using Cartes du Ceil (Sky Charts).
04/01/2015 – Ephemeris – No fooling, it’s time to look at the bright planets for this week
Ephemeris for April Fools Day, Wednesday, April 1st. The Sun will rise at 7:24. It’ll be up for 12 hours and 45 minutes, setting at 8:10. The Moon, 3 days before full, will set at 6:29 tomorrow morning.
Lets take a look at the bright planets for this week. Brilliant Venus is in the west by 8:40 p.m. It will set at 11:23 p.m. Mars appears much lower and to the right of it. The Red Planet will set tonight at 9:48. Jupiter will appear In the southeastern sky in the evening. It will set at 5:20 a.m. It’s near the sickle-shaped head of Leo the lion, and it’s the second brightest star-like object in the sky after Venus. All four moons will be visible in telescopes tonight, but tomorrow morning the moon Io will duck behind Jupiter at 2:55, but will not pop into sunlight until after Jupiter sets. Early risers will be able to spot Saturn which will rise in the east-southeast at 12:30 a.m. It will be low in the south at 5 to 6 a.m.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum

The Moon, evening planets and bright constellations at 9:30 p.m. April 1, 2015. Created using Stellarium.

Jupiter as seen in a telescope at 9:30 p.m. April 1, 2014. Europa will partially occult Io starting at 9:41 p.m. for 4 minutes. They will appear to merge. Later at 11:21 p.m. Io will be partially eclipsed in Europa’s shadow for about 4 minutes. Europa will dim slightly. Created using Cartes du Ceil (Sky Charts).
03/25/2015 – Ephemeris – Where are the bright planets tonight?
Ephemeris for Wednesday, March 25th. The Sun will rise at 7:37. It’ll be up for 12 hours and 24 minutes, setting at 8:01. The Moon, 2 days before first quarter, will set at 2:13 tomorrow morning.
Lets take a look at the bright planets for this week. Brilliant Venus is in the west by 8:30 p.m. It will set at 11:07 p.m. Mars appears much lower and to the right of it. The Red Planet will set tonight at 9:48. Jupiter will appear In the southeastern sky in the evening. It will set at 5:48 a.m. It’s near the sickle-shaped head of Leo the lion, and it’s the second brightest star-like object in the sky after Venus. In telescopes tomorrow morning the moon Io will duck behind Jupiter at 1:05, but will pop into sunlight a bit away from the planet on the other side at 4:23 a.m. because it also will be hidden in Jupiter’s shadow. Early risers will be able to spot Saturn which will rise in the east-southeast at 12:59 a.m. It will be low in the south at 6 to 7 a.m.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum

The evening planets of Mars, Venus and Jupiter with the Moon and winter stars. Created using Stellarium.
03/18/2015 Ephemeris – It’s Wednesday, so where are all the bright planets?
Ephemeris for Wednesday, March 18th. The Sun will rise at 7:50. It’ll be up for 12 hours and 2 minutes, setting at 7:52. The Moon, 2 days before new, will rise at 7:14 tomorrow morning.
Lets take a look at the bright planets for this week. Brilliant Venus is in the west by 8:30 p.m. It will set at 10:49 p.m. Mars appears below and right of it. The Red Planet will set tonight at 9:47. Jupiter will appear In the southeastern sky in the evening. It will set at 6:41 a.m. It’s near the sickle-shaped head of Leo the lion, and it’s the brightest star-like object in the sky after Venus sets. In telescopes tonight the moon Io will duck behind Jupiter at 11:17, but will pop into sunlight a bit away from the planet on the other side at 2:28 a.m. because it also will be hidden in Jupiter’s shadow. Early risers will be able to spot Saturn which will rise in the east-southeast at 1:27 a.m. It will be low in the south at 6 to 7 a.m.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum
03/11/2015 – Ephemeris – On Wednesday we look at the bright planets
Ephemeris for Wednesday, March 11th. The Sun will rise at 8:02. It’ll be up for 11 hours and 40 minutes, setting at 7:43. The Moon, 2 days before last quarter, will rise at 1:42 tomorrow morning.
Lets take a look at the bright planets for this week. Brilliant Venus is in the west by 8:30 p.m. It will set at 10:31 p.m. Mars appears below and right of it. The Red Planet will set tonight at 9:47. Jupiter will appear In the southeastern sky in the evening. It will set at 6:41 a.m. It’s near the sickle-shaped head of Leo the lion, and it’s the brightest star-like object in the sky after Venus sets. In telescopes tonight the moon Io duck behind Jupiter at 9:29 early, but will pop into sunlight a bit away from the planet on the other side at 12:33 a.m. because it also will be hidden in Jupiter’s shadow. Early risers will be able to spot Saturn which will rise in the east-southeast at 1:54 a.m. It will appear below the Moon tomorrow morning.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum

The evening planets Mars, Venus, and Jupiter with the winter constellations at 9 p.m. March 11, 2015. Created using Stellarium.

Jupiter and moons at 9 p.m. March 11, 2015, about 29 minutes before Io moves behind Jupiter. Created using Cartes du Ceil (Sky Charts).

Jupiter and moons at 12:33 a.m. March 12, 2015, about when Io emerges into sunlight from Jupiter’s shadow. Created using Cartes du Ceil (Sky Charts).

What Saturn and its moons might appear like in a telescope at 6 a.m., March 12, 2015. Small telescopes will show only the moon Titan. Created using Cartes du Ceil (Sky Charts).
03/04/2015 – Ephemeris – Our weekly look at the bright planets
Ephemeris for Wednesday, March 4th. The Sun will rise at 7:15. It’ll be up for 11 hours and 18 minutes, setting at 6:34. The Moon, 1 day before full, will set at 6:59 tomorrow morning.
Lets take a look at the bright planets for this week. Brilliant Venus is in the west by 7:30 p.m. It will set at 9:13 p.m. It’s separating from Mars which appears below and right of it. The Red Planet will set tonight at 8:47 p.m. Jupiter will appear In the southeastern sky in the evening. It will be up just about all night, and will set at 6:16 a.m. It’s near the sickle-shaped head of Leo the lion, and it’s the brightest star-like object in the sky. In telescopes tonight the moon Io will be behind Jupiter and will pop into sunlight a bit away from the planet at 9:39 p.m. Tomorrow night the 5th the moon Europa will duck behind Jupiter at 8:48 p.m. After that only 3 of the moons will be visible, until 12:57 a.m. when Europa will appear on the other side.* Early risers will be able to spot Saturn which will rise in the east-southeast at 1:25 a.m. It’s in the south at 6 a.m.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
* Due to a date mix up the radio program may be incorrect. The occultation of Europa on the 5th being set on the 4th. The Io occultation is since added.
Addendum

Jupiter and moons at 9:39 p.m., when Io leaves Jupiter’s shadow on March 4, 2015. Created using Cartes du Ceil (Sky Charts).
































