Archive
12/21/2016 – Ephemeris – A look at the bright planets at the start of winter
Ephemeris for the winter solstice Wednesday, December 21st. The Sun will rise at 8:17. It’ll be up for 8 hours and 48 minutes, setting at 5:05. The Moon, 1 day past last quarter, will rise at 1:46 tomorrow morning.
Let’s look at the naked eye planets now that it’s officially winter as of 5:45 a.m. In the east-southeast before 7:30 these mornings. Jupiter can be glimpsed in the morning twilight. Jupiter will rise tomorrow at 2:16 a.m. and will appear below the Moon. Venus and Mars are in the evening sky. At 6 p.m. these planets will be seen in the southwest and low in the sky. Venus is unmistakable as the brilliant evening star, Mars will be above and left of it. Venus will set at 8:46. Mars will set at 10:12. Mars’ setting time hasn’t changed much in the last 2 months. Venus is slowly heading northward for the rest of it’s evening appearance, and is moving higher in the sky, and is closing in on it’s greatest eastern elongation from the Sun.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum

Venus and Mars in the evening twilight of about an hour after sunset. 6 p.m. December 21, 2016. Created using Stellarium.

Venus as it might be seen in a telescope at 6 p.m. December 21, 2016. Created using Stellarium.

The Moon as it might appear in binoculars at 7 a.m. December 22, 2016. Created using Stellarium.

Jupiter and its Galilean moons at 7 a.m. December 22, 2016. Io is behind Jupiter at this time, however it will clear the planet by 7:38 a.m. EST (12:38 UT). Created using Cartes du Ciel (Sky Charts).
Update 8:10 a.m.
12/14/2016 – Ephemeris – Mercury is seen briefly with the evening planets
Ephemeris for Wednesday, December 14th. The Sun will rise at 8:12. It’ll be up for 8 hours and 49 minutes, setting at 5:02. The Moon, 1 day past full, will rise at 6:17 this evening.
In the east-southeast before 7:30 these mornings. Jupiter can be glimpsed in the morning twilight. Jupiter will rise tomorrow at 2:39 a.m. We are approaching Jupiter as it appears to move away from the Sun. We will pass it on April 7th next year. Mercury, Venus and Mars are in the evening sky. At 6 p.m. these planets will be seen in the southwest and low in the sky. Mercury will require a very low horizon, Venus will be the higher and the brightest of the three, Mars will be higher to the left. Mercury will set at 6:24 p.m., Venus will set at 8:30. Mars will set at 10:11. Mars’ setting time hasn’t changed much in the last month and a half. Venus is slowly heading northward for the rest of it’s evening appearance, and is moving higher in the sky.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum

Venus, Mars and Mercury in the trees at 6 p.m., December 14, 2016. This is approximately one hour after sunset. Click on image to enlarge. Created using Stellarium.
Mercury might be spotted a half hour earlier a bit higher with binoculars.

Jupiter the Moon and a preview of the southern spring constellations at 6:30 a.m. December 15, 2016. Click on image to enlarge. Created using Stellarium.

The Moon at 6:30 a.m. December 15, 2016. Created using Stellarium.

Jupiter and moons at 6:30 a.m. December 15, 2016. Io appeared from behind Jupiter at 5:42 a.m. (10:42 UT). Image created using Cartes du Ciel (Sky Charts).
12/07/2016 – Ephemeris – Where are the bright planets
Ephemeris for Wednesday, December 7th*. The Sun will rise at 8:06. It’ll be up for 8 hours and 55 minutes, setting at 5:02. The Moon, at first quarter today, will set at 1:16 tomorrow morning.
In the east-southeast before 7:30 these mornings. Jupiter can be glimpsed in the morning twilight. Jupiter will rise tomorrow at 3:01 a.m. We are approaching Jupiter as it appears to move away from the Sun. We will pass it on April 7th next year. Venus and Mars are in the evening sky. At 6 p.m. these planets will be seen in the southwest and low in the sky. Venus will be the lower and brighter of the two, Mars will be higher to the left. Venus will set at 8:14. Mars will hang on a bit longer and will set at 10:10. Mars’ setting time hasn’t changed much in the last month and a half. It’s losing to the Sun by only a little bit each day. Venus is slowly heading northward for the rest of it’s evening appearance, and is moving higher in the sky.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
* 75th anniversary of the attack on Pearl Harbor. I was only 3 days old at the time, so had nothing to do with it.
Addendum

Venus, Mars and the Moon at 6 p.m., December 7, 2016. This is approximately one hour after sunset. Click on image to enlarge. Created using Stellarium.

A closeup of the Moon at 6 p.m., December 7, 2016. Created using Stellarium.

Jupiter and a preview of spring constellations at 6:30 a.m. December 8, 2016. Click on image to enlarge. Created using Stellarium.

Jupiter and moons at 6:30 a.m. December 8, 2016. Europa is in Jupiter’s shadow at this time. It will disappear in its shadow at 4:46 a.m. (9:46 UT). Image created using Cartes du Ciel. Note that Europa was on the image, but was removed. Stellarium had it right, but I prefer Cartes’ rendering.

Planets and Moon at sunset and sunrise of a single night starting with sunset on the right on December 7, 2016. The night ends on the left with sunrise on December 8. Click on image to enlarge. Created using my LookingUp program.
Note that Saturn is practically plotted on top of the Sun. It will be in conjunction with the Sun on the 10th. After that it will enter the morning sky.
11/30/2016 – Ephemeris – The bright planets this morning and tonight
Ephemeris for Wednesday, November 30th. The Sun will rise at 7:59. It’ll be up for 9 hours and 4 minutes, setting at 5:03. The Moon, 1 day past new, will set at 6:23 this evening.
In the east-southeast before 7:30 these mornings. Jupiter can be glimpsed in the morning twilight. Jupiter will rise tomorrow at 3:23 a.m. We are approaching Jupiter as it appears to move away from the Sun. We will pass it on April 7th next year. Venus and Mars are in the evening sky. At 6 p.m. these planets will be seen in the southwest and low in the sky. Venus will be the lower and brighter of the two, Mars will be higher to the left. Venus will set at 7:59. Mars will hang on a bit longer and will set at 10:09. Mars’ setting time hasn’t changed much in the last month and a half. It’s losing to the Sun by only a little bit each day. Venus is slowly heading northward for the rest of it’s evening appearance, and is moving higher in the sky.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum

The evening planets of Venus and Mars at 6:30 p.m., November 30, 2016. Click on image to enlarge. Created using Stellarium.

Jupiter with the coming spring constellations and the setting winter ones at 6:30 a.m., December 1, 2016. Click on image to enlarge. Created using Stellarium.

Jupiter and Galilean satellites at 6:30 a.m., December 1, 2016. Europa is labeled, but just behind the planet. It will appear at 6:43 a.m. Created using Cartes du Ciel (Sky Charts).
11/23/2016 – Ephemeris – Now it’s two bright planets in the evening and one in the morning
Ephemeris for Wednesday, November 23rd. The Sun will rise at 7:50. It’ll be up for 9 hours and 16 minutes, setting at 5:07. The Moon, 2 days past last quarter, will rise at 2:55 tomorrow morning.
In the east-southeast before 7:30 these mornings. Jupiter can be glimpsed in the morning twilight. Jupiter will rise tomorrow at 3:44 a.m. We are approaching Jupiter as it appears to move away from the Sun. We will pass it on April 7th next year. Venus and Mars are in the evening sky. At 6 p.m. these planets will be seen in the southwest and low in the sky. Venus will be the lower and brighter of the two, Mars will be higher to the left. Venus will set at 7:45. Mars will hang on a bit longer and will set at 10:08. Mars’ setting time hasn’t changed much in the last month. It’s losing to the Sun by only a little bit each day. Venus is slowly heading northward for the rest of it’s evening appearance, and will be moving higher in the sky.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum

Venus, Mars and the constellation Capricornus at 6:30 p.m., November 23, 2016. Created using Stellarium.

Jupiter and the Moon tomorrow morning, November 24, 2016. The Moon will pass Jupiter Thursday the 24th. With Friday’s post we’ll see that the Moon has passed Jupiter. Created using Stellarium.

Jupiter and its satellites this morning and tomorrow morning at 6:30.. Created using Cartes du Ciel (Sky Charts).

Planets and Moon at sunset and sunrise of a single night starting with sunset on the right on November 23, 2016. The night ends on the left with sunrise on November 24. If you are using Firefox right-click on the image and select View Image to enlarge the image. That goes for all the large images. Created using my LookingUp program.
11/16/2016 – Ephemeris – Where are the bright planets now?
Ephemeris for Wednesday, November 16th. The Sun will rise at 7:41. It’ll be up for 9 hours and 31 minutes, setting at 5:13. The Moon, 2 days past full, will rise at 7:38 this evening.
Low in the east-southeast before 7:15 a.m. Jupiter can be glimpsed in the morning twilight. Jupiter will rise tomorrow at 4:05 a.m. We are approaching Jupiter, though it’s 5 times Earth’s distance from the Sun and will pass it April 7th. Venus, Saturn and Mars are in the evening sky. At 6 p.m. these planets will be seen in the southwest and low in the sky. Venus will be the brightest, Saturn might be picked out of the twilight to the right and below Venus, and Mars will be higher to the left. Saturn will set first at 6:30, with Venus setting at 7:33. Mars will hang on a bit longer and will set at 10:07. Mars’ setting time hasn’t changed from last week. Venus is slowly heading northward for the rest of it’s evening appearance.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum

The evening planets in twilight in the southwestern sky at 6 p.m. Created using Stellarium.

Jupiter rising in the morning sky this morning at 7 a.m. November 19, 2016. Created using Stellarium.

Jupiter and its Galilean moons, as they might be seen in a telescope at 7 a.m., this morning, November 16, 2016. Created using Cartes du Ciel (Sky Charts).

The Moon is visible both in the evening and the next morning. At right is the evening Moon at 8 p.m. On the left is the Moon at 7 a.m. A sharp-eyed person, with binoculars, can notice a slight change in the sunset terminator in the 11 hours between the two views. Created using Stellarium.

Planets and Moon at sunset and sunrise of a single night starting with sunset on the right on November 16, 2016. The night ends on the left with sunrise on November 17. If you are using Firefox right-click on the image and select View Image to enlarge the image. That goes for all the large images. Created using my LookingUp program.
11/09/2016 – Ephemeris – Your mid-week bright planet report
Ephemeris for Wednesday, November 9th. The Sun will rise at 7:32. It’ll be up for 9 hours and 48 minutes, setting at 5:20. The Moon, 2 days past first quarter, will set at 2:23 tomorrow morning.
Low in the east-southeast at 6 a.m. Jupiter can be glimpsed in the morning twilight. Jupiter will rise tomorrow at 4:25 a.m. We are approaching Jupiter, though it’s 5 times Earth’s distance from the Sun and will pass it April 7th. Venus, Saturn and Mars are in the evening sky. At 6 p.m. these planets will be seen in the southwest and low in the sky. Venus will be the brightest, Saturn might be picked out of the twilight to the right and a bit below Venus, and Mars will be higher to the left. Saturn will set first at 6:54, with Venus setting a half and hour later at 7:24. Mars will hang on a bit longer and will set at 10:07. Venus is almost at its farthest south in the sky, and will be slowly heading northward for the rest of it’s evening appearance.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum

The evening planets in twilight in the southwestern sky at 6 p.m. November 9, 2016. Created using Stellarium.

Looking south at Mars, two bright stars, and the Moon at 8 p.m. November 9, 2016. Created using Stellarium.

The Moon as it might be seen in binoculars at 8 p.m. November 9, 2016. Created using Stellarium.

Jupiter in the morning sky at 6:30 a.m. November 10, 2016. Created using Stellarium.

Jupiter and its Galilean moons, as they might be seen in a telescope at 6 a.m. November 11, 2016. Created using Cartes du Ciel (Sky Charts). Note the image is not inverted.

Planets and Moon at sunset and sunrise of a single night starting with sunset on the right on November 9, 2016. The night ends on the left with sunrise on November 10. If you are using Firefox right-click on the image and select View Image to enlarge the image. That goes for all the large images. Created using my LookingUp program.
11/03/2016 – Ephemeris – Capricornus, a very strange goat
Ephemeris for Thursday, November 3rd. The Sun will rise at 8:24. It’ll be up for 10 hours and 3 minutes, setting at 6:28. The Moon, half way from new to first quarter, will set at 9:25 this evening.
The planet Mars is just to the right of the stars of Capricornus, one of the constellations of the zodiac. Astronomers and others who draw the constellations by drawing lines between stars like a dot to dot puzzle have a hard time getting a sea-goat emerge from its stars. The sea-goat has the front part of a goat and the back half like a fishes tail. Kind of like a mergoat, instead of a mermaid. To me, the constellation looks like a large sagging triangle, just above-left of Mars right now. It will take Mars only to mid December to cross Capricornus to enter Aquarius, just east of it. A couple of thousand years ago Capricornus was the location of the winter solstice point in the sky, for which the Tropic of Capricorn was named. That point is now on the Ophiuchus-Sagittarius border.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum

Animated GIF of Capricornus in the sky. Time 9 p.m. November 3, 2016. Created using Stellarium ans GIMP.
11/02/2016 – Ephemeris – Venus, Saturn and the Moon make a tight triangle in the southwest tonight
Ephemeris for Wednesday, November 2nd. The Sun will rise at 8:22. It’ll be up for 10 hours and 6 minutes, setting at 6:29. The Moon, 3 days past new, will set at 8:42 this evening.
Low in the east this morning at 7 Jupiter can be glimpsed in the twilight. Jupiter rose this morning at 5:48 a.m. Venus, Saturn and Mars are in the evening sky. Venus, Saturn and the Moon will appear together tonight with Saturn to the right of the much brighter Venus. The thin crescent Moon will appear above Saturn. Venus will set at 8:18 p.m. and Saturn a minute later. Venus continues to move southward and will still be hugging the southwestern horizon for the next week, but it’s high enough to spot with a reasonably low horizon. Mars can be seen in the darkened sky after Venus and Saturn set. The Red Planet will enter the constellation of Capricornus in a week and moves into the southwest by 8 p.m. Mars will set at 11:07 p.m.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum

The Moon, Saturn and Venus low in the southwest tonight at 7:30 p.m., November 2, 2016. Created using Stellarium.

Mars and the evening constellations tonight at 8 p.m., November 2, 2016. Created using Stellarium.

Jupiter rising in the morning sky this morning at 7 a.m. November 2, 2016. Created using Stellarium.

Planets and Moon at sunset and sunrise of a single night starting with sunset on the right on November 2, 2016. The night ends on the left with sunrise on November 3. If you are using Firefox right-click on the image and select View Image to enlarge the image. That goes for all the large images. Created using my LookingUp program.
Bob King has an excellent article in Universe Today about the planet and Moon grouping in the southwest tonight: http://www.universetoday.com/131700/november-opens-splendid-gathering-moon-planets/
10/26/2016 – Ephemeris – Bright planet count: 1 in the morning, 3 in the evening, 1 behind the Sun
Ephemeris for Wednesday, October 26th. The Sun will rise at 8:13. It’ll be up for 10 hours and 26 minutes, setting at 6:39. The Moon, half way from last quarter to new, will rise at 5:03 tomorrow morning.
Low in the east this morning at 7 Jupiter can be glimpsed in the twilight. Jupiter’s rose this morning at 6:09 a.m. Venus, Saturn and Mars are in the evening sky. Venus is briefly visible after sunset, low in the west-southwest. It will set at 8:16 p.m. Venus is still moving a bit southward and will still be hugging the southwestern horizon for the next month or so, but it’s high enough to spot with a reasonably low horizon. Saturn is above and left of Venus, It will set at 8:44 p.m. Mars can be seen in the darkened sky after Venus sets. Mars is way out to the left of Saturn, above and left of the setting Teapot of Sagittarius at 9 p.m. in the southwest. Mars will set at 11:08 p.m. Mercury will pass behind the Sun tomorrow.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum

The evening planets in twilight at 7:30 p.m. Venus and Mars are easily spotter, but Saturn is problematic. Created using Stellarium.

Jupiter and the Moon at 7 a.m. this morning, October 26, 2016. Created using Stellarium.

The Moon as it might appear in binoculars at 7 a.m. this morning, October 26, 2016. The Mood will also show a faint earthshine on its normally hidden light side to the right of the crescent. Created using Stellarium.

Planets and Moon at sunset and sunrise of a single night starting with sunset on the right on October 26, 2016. The night ends on the left with sunrise on October 27. If you are using Firefox right-click on the image and select View Image to enlarge the image. That goes for all the large images. Created using my LookingUp program.



