Archive
01/10/2018 – Ephemeris – One lone, but invisible, bright planet in the evening, the rest in the morning
Ephemeris for Wednesday, January 10th. The Sun will rise at 8:18. It’ll be up for 9 hours and 3 minutes, setting at 5:22. The Moon, 2 days past last quarter, will rise at 3:20 tomorrow morning.
Let’s take our weekly look at the bright planets. While Uranus and Neptune are evening planets, they require binoculars or a telescope to spot. All of the bright naked eye planets save one are in the morning sky now, but Venus is too close to the Sun to be seen. So is Saturn, but that’s in the morning sky along with Mercury. At 7 this morning Jupiter is in the east-southeast and is a lot brighter than Mars, just below and left of it. Jupiter will rise at 3:29 tomorrow with Mars following at 3:40. If you want to take a crack at Mercury, it will rise this morning at 6:52 And Saturn will rise at 7:07 this morning. Saturn’s rise times will increase by 3 to 4 minutes each morning. The morning sky you’ll see at 7 a.m. will be the same stars as in the late spring sky with the summer triangle just rising.
The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum

Morning planets with an animation of the Moon’s motion on the morning of the 10th & 11th. Created using Stellarium and GIMP. I’ll be covering the Moon’s apparent proximity to the planets tomorrow. Click on image to enlarge.

The fat waning crescent Moon as it might be seen in binoculars at 7 a.m. January 10, 2017. Created using Stellarium.

Jupiter with only two of its moons visible at 7 a.m. January 10, 2018. Io and Europa will be visible before 5:27 a.m. before ducking into Jupiter’s shadow. Created using Cartes du Ciel.
Satellite Event Date UT EST Europa Eclipse start: 10 Jan 2018 10:27 5:27 a.m. Io Eclipse start: 10 Jan 2018 10:28 5:28 a.m. Io Occultation end: 10 Jan 2018 13:42 Daylight Europa Occultation end: 10 Jan 2018 14:56 Daylight
Satellite events are from the Pluto Project: https://www.projectpluto.com/jevent.htm
01/03/2018 – Ephemeris – The year starts out with all the bright planets in the morning sky
Ephemeris for Wednesday, January 3rd. The Sun will rise at 8:20. It’ll be up for 8 hours and 54 minutes, setting at 5:14. The Moon, 2 days past full, will rise at 7:30 this evening.
Let’s take our weekly look at the bright planets. While Uranus and Neptune are evening planets, they require binoculars or a telescope to spot. All of the bright naked eye planets are in the morning sky now, However Saturn and Venus, the brightest, are too close to the Sun to be seen. At 7 this morning Mars is in the south-southeast while Jupiter is a lot brighter and below and left of it. Mars will rise tomorrow morning at 3:45. It’s approaching Jupiter which will rise 6 minutes later at 3:51. They will cross paths this weekend, I’ll have more on that tomorrow. Mercury will be a challenge to spot, rising in the east-southeast around 6:38 a.m. now. At 7 a.m. It will require a low horizon, binoculars and luck to find. In its next evening appearance in March it will be placed much higher in the sky for the same twilight conditions.
The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum

Jupiter and three of its four Galilean moons as they might be seen in a telescope at 7 a.m. this morning, January 3, 2018. Created using Cartes du Ciel (Sky Charts).
Event UT EST Europa Eclipse starts: 7:51 Io Eclipse starts: 8:35 Io Occultation ends: 11:45 6:45 a.m. Europa Occultation ends: 12:12 7:12 a.m.
Only the last two events will be visible in the Grand Traverse area. Occultations now have the moon enter Jupiter’s shadow to the west, then unseen pass behind the planet to emerge at the east edge of the planet.
12/27/2017 – Ephemeris – All the bright planets are in the morning sky. However the Moon is in the evening sky.
Ephemeris for Wednesday, December 27th. The Sun will rise at 8:18. It’ll be up for 8 hours and 50 minutes, setting at 5:08. The Moon, 1 day past first quarter, will set at 2:43 tomorrow morning.
Let’s take our weekly look at the bright planets. While Uranus and Neptune are evening planets, they require binoculars or a telescope to spot. All of the bright naked eye planets are in the morning sky now, However Saturn and Venus, the brightest are too close to the Sun to be seen. At 7 this morning Mars is in the south-southeast while Jupiter is a lot brighter and below and left of it. Mars will rise tomorrow morning at 3:49. It’s approaching Jupiter which will rise 23 minutes later at 4:12. Mercury will be a challenge to spot, rising in the east-southeast at 6:32 a.m. both today and tomorrow. At 7 a.m. It will require a low horizon, binoculars and luck to find. In its next evening appearance in March it will be placed much higher in the sky for the same twilight conditions.
The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum

The only bright solar system object visible in the evening is the gibbous Moon. Binoculars will reveal several large craters this evening December 27, 2017. Created using Stellarium.

Jupiter and its four Galilean moons as they might be seen in a telescope at 7 a.m. this morning, December 27, 2017. Created using Cartes du Ciel (Sky Charts).
Earlier in the morning both Io and Europa will be eclipsed in Jupiter’s shadow and be occulted by the planet.
Moon Event UT Time in Traverse Area Europa: Eclipse start 5:15 UT Io: Eclipse start 6:43 UT Europa: Occultation end 9:27 UT 4:27 a.m. EST Io: Occultation end 9:47 UT 4:47 a.m. EST

Planets at sunset and sunrise of a single night starting with sunset on the right on December 27, 2017. The night ends on the left with sunrise on the 28th. Click on the image to enlarge. Created using my LookingUp program.
12/20/2017 – Ephemeris – All the visible bright planets are in the morning sky
Ephemeris for Wednesday, December 20th. The Sun will rise at 8:15. It’ll be up for 8 hours and 48 minutes, setting at 5:04. The Moon, 2 days past new, will set at 7:27 this evening.
Let’s take our weekly look at the bright planets. There are no bright planets visible in the evening sky now. While Uranus and Neptune are evening planets, they require binoculars or a telescope to spot. The morning sky is now host to three planets, though Venus, the brightest will rise too close to the Sun to spot. It’s way on the other side of the Sun, and it will pass behind the Sun in superior conjunction January 9th. At 7 this morning Mars is in the southeast while Jupiter is a lot brighter and below and left of it. Mars will rise tomorrow morning at 3:54. It’s approaching Jupiter which will rise 39 minutes later at 4:33. Tomorrow Saturn will be in conjunction with the Sun and will officially enter the morning sky. It will be a month or more before it separates far enough from the Sun to spot in morning twilight.
The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum

The only bright solar system object visible in the evening is the thin crescent Moon that will be exhibiting Earth shine this evening December 20, 2017. Created using Stellarium.

The bright morning planets visible at 7 a.m. this morning, December 20, 2017. Mercury is too close to the horizon to spot. Created using Stellarium.
12/06/2017 – Ephemeris – Where did all the evening planets go?
Ephemeris for Wednesday, December 6th. The Sun will rise at 8:04. It’ll be up for 8 hours and 57 minutes, setting at 5:02. The Moon, 3 days past full, will rise at 8:43 this evening.
Let’s take our weekly look at the bright planets. Saturn and Mercury are very close together, but too low after sunset to spot from up North here. Mercury will set at 5:50, while Saturn will set 9 minutes later. While Uranus and Neptune are evening planets, they require binoculars or a telescope to spot. (This is beyond the scope of this program, which is geared to naked eye observing or easy things to find and observe with binoculars or a small telescope). The morning sky is now host to three planets, though Venus, the brightest will rise close to sun will rise at 7:24 this morning. It’s way on the other side of the Sun, and it will pass behind the Sun in superior conjunction a month from today. At 7 this morning Jupiter is bright, low in the east-southeast, while Mars, the Red Planet is just left of the brighter star Spica, which has a bluish hue. They are higher than Jupiter and to the southeast. Mars will rise tomorrow morning at 4:03. Jupiter will rise more than an hour later at 5:14.
The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum
Stellarium is unable to display Mercury or Saturn in twilight for tonight.

Mars and Jupiter in the morning at 7 a.m. December 7, 2017. Click on the image to enlarge. Created using Stellarium.
11/29/2017 – Ephemeris – The Bright planets this week
Ephemeris for Wednesday, November 29th. The Sun will rise at 7:57. It’ll be up for 9 hours and 7 minutes, setting at 5:04. The Moon, 3 days past first quarter, will set at 3:54 tomorrow morning.
Let’s take our weekly look at the bright planets. Mercury is dropping back to the Sun and is fading as its phase changes to a crescent It will be below and left of Saturn tonight and actually brighter than Saturn. Saturn is sinking low in the southwestern sky. It is becoming harder to spot each evening. Tonight it will set at 6:24 p.m. The morning sky is now host to three planets, though Venus, the brightest will rise at 7:03 this morning and will be fighting twilight as it rises. It’s way on the other side of the Sun, and very tiny in telescopes, though nearly fully illuminated. It’s 156 million miles (251 million km) away. First to rise in the morning is Mars which will rise in the east at 4:07 a.m. tomorrow, Jupiter, will follow and rise at 5:34 a.m. tomorrow.
The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum

Mercury and Saturn at 5:45 p.m., about 45 minutes after sunset, November 29, 2017. Click on the image to enlarge. Created using Stellarium.
11/22/2017 – Ephemeris – A look at the bright planets for Thanksgiving week
Ephemeris for Wednesday, November 22nd. The Sun will rise at 7:48. It’ll be up for 9 hours and 19 minutes, setting at 5:08. The Moon, half way from new to first quarter, will set at 8:39 this evening.
Let’s take our weekly look at the bright planets. Mercury is briefly visible in binoculars in the southwest in the evening, setting at 6:11 p.m., and will reach it’s greatest elongation from the Sun tomorrow evening. Saturn is sinking low in the southwestern sky. Saturn’s rings are still spectacular in telescopes, but since Saturn is so low in the sky the thick atmosphere makes Saturn fuzzy and seemingly to go in and out of focus. Saturn will set at 6:49 p.m. Tomorrow in the morning sky, Mars, heading away from the Sun will rise in the east at 4:11 a.m., Jupiter, also moving away from the Sun, will rise at in the east-southeast at 5:54 a.m., leaving Venus behind after their conjunction 9 days ago, which will rise at 6:47 a.m..
The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum

Mercury, Saturn and the Moon at 5:45 p.m., a bit more than a half hour after sunset, November 22, 2017. Click on the image to enlarge. Created using Stellarium.

Saturn as it might be seen in a telescope tonight. Created using Cartes du Ciel (Star Charts).

The Moon as it might be seen tonight. Created using Stellarium.

The morning planets Mars, Jupiter and Venus at 7:15 a.m. November 23, 2017, about a half hour before sunrise on a really flat horizon. Created using Stellarium.

Planets at sunset and sunrise of a single night starting with sunset on the right on November 22, 2017. The night ends on the left with sunrise on the 22nd. Click on the image to enlarge. Created using my LookingUp program.
11/15/2017 – Ephemeris – All the bright planets are visible for observers at both dusk and dawn
Ephemeris for Wednesday, November 15th. The Sun will rise at 7:39. It’ll be up for 9 hours and 34 minutes, setting at 5:14. The Moon, 3 days before new, will rise at 5:32 tomorrow morning.
Let’s take our weekly look at the bright planets. Mercury is briefly visible in binoculars in the southwest in the evening, setting at 6:06 p.m., and will reach it’s greatest elongation from the Sun in 8 days. Saturn is sinking low in the southwestern sky. Saturn’s rings are still spectacular in telescopes, but since Saturn is so low in the sky the thick atmosphere makes Saturn fuzzy and seemingly to go in and out of focus. Saturn will set at 7:12 p.m. Tomorrow in the morning sky, Mars, heading away from the Sun will rise in the east at 4:16 a.m., Jupiter, also moving away from the Sun, will rise at in the east-southeast at 6:14, leaving Venus behind after their conjunction two days ago, which will rise at 6:30.
The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum

Saturn and Mercury very low in the southwest at 6:45p.m. November 15, 2017. That’s about half an hour after sunset. Click on the image to enlarge. Created using Stellarium.

Saturn and its brightest moon Titan in the evening November 15, 2017. Created using Cartes du Ciel (Sky Charts).

Mars Jupiter Venus and the Moon at 7 a.m., November 16, 2017. The Moon is actually a thin crescent as seen below. Created using Stellarium.
11/08/2017 – Ephemeris – Jupiter becomes visible in the morning (The bright planets this week)
Ephemeris for Wednesday, November 8th. The Sun will rise at 7:30. It’ll be up for 9 hours and 51 minutes, setting at 5:21. The Moon, 2 days before last quarter, will rise at 9:52 this evening.
Let’s take our weekly look at the bright planets. Saturn is sinking low in the southwestern sky in the evening. Saturn’s rings are still spectacular in telescopes, but since Saturn is so low in the sky the turbulence of the thick atmosphere makes Saturn fuzzy and seemingly to go in and out of focus. Saturn will set at 7:37 p.m. Tomorrow in the morning sky, Mars, heading away from the Sun will rise in the east at 4:20 a.m., Venus, is heading closer to the Sun, will rise at 6:11 in the east-southeast. Jupiter is in the morning sky but lower than Venus, rising in the east-southeast at 6:33. Mercury has moved into the evening sky and will reach it’s greatest elongation from the Sun in 15 days, but will not be easily visible even then.
The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum

Saturn with Mercury (unlabeled) at the horizon at 6 p.m., November 8, 2017. Click on the image to enlarge. Create using Stellarium.

Saturn and its brightest moon Titan in the evening November 8, 2017. Created using Cartes du Ciel (Sky Charts).

The Moon as it might be seen in binoculars at 10:30 p.m., November 8, 2017. Created using Stellarium.
11/01/2017 – Ephemeris – Looking at the bright planets for November 1st
Ephemeris for Wednesday, November 1st. The Sun will rise at 8:20. It’ll be up for 10 hours and 10 minutes, setting at 6:30. The Moon, 3 days before full, will set at 6:08 tomorrow morning.
Let’s take our weekly look at the bright planets for this first day of November. Saturn is sinking low in the southwestern sky in the evening. Saturn’s rings are still spectacular in telescopes, but since Saturn is so low in the sky the turbulence of the thick atmosphere makes Saturn fuzzy and seemingly to go in and out of focus. Saturn will set at 9:02 p.m.
Tomorrow in the morning sky, Mars, heading away from the Sun will rise in the east at 5:25 a.m., Venus, is heading closer to the Sun, will rise at 6:53 in the east. Jupiter is in the morning sky but too close to the direction of the Sun to be seen. Mercury has moved into the evening sky and will reach it’s greatest elongation from the Sun in 22 days, but will not be easily visible even then.
The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum

Saturn and the Moon at 8 p.m. November 1, 2017. Click on the image to enlarge. Create using Stellarium.





















