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Ephemeris: 01/15/2025 – Our weekly look at the whereabouts of the naked-eye planets
This is Ephemeris for Wednesday, January 15th. Today the Sun will be up for 9 hours and 12 minutes, setting at 5:28, and it will rise tomorrow at 8:15. The Moon, 2 days past full, will rise at 7:27 this evening.
Let’s take our weekly look at the whereabouts of the naked-eye planets. At 8 PM this evening four of the five naked eye planets will be out. Starting from the West we have Venus the brightest of all low in the west southwest. Left and a bit above it is Saturn. They will appear at their closest Friday and Saturday nights. Jupiter, the second-brightest planet will be high in the southeast. The 4th planet out is Mars, which is at opposition from the Sun tonight. Mars will not get this close to the Earth again until 2031. It shines with its reddish hue a third as bright as Jupiter in the eastern sky. On unusually close approaches, Mars can actually outshine Jupiter. The fifth naked eye planet, Mercury, is too close to the Sun on the morning side to be visible.
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


Translations of some lunar feature names according to Virtual Moon Atlas
Mare Cognitum – Sea of Knowledge
Mare Crisium – Sea of Crises
Mare Fecunditatis – Sea of Fruitfulness
Mare Frigoris – Sea of Cold
Mare Humorum – Sea of Moisture
Mare Imbrium – Sea of Showers
Mare Nectaris – Sea of Nectar
Mare Nubium – Sea of Clouds
Mare Serenitatis – Sea of Serenity
Mare Tranquillitatis – Sea of Tranquility
Mare Vaporum – Sea of Vapors
Montes Alpes – Alps Mountains
Montes Apenninus – Apennines Mountains
Oceanus Procellarum – Ocean of Storms
Sinus Iridium – Bay of Rainbows
Sinus Medii – Central Bay
Mare is pronounced Mar-e. Craters are named for persons, real or otherwise.



Ephemeris: 01/13/2025 – The Moon will pass in front of Mars tonight
This is Ephemeris for Monday, January 13th. Today the Sun will be up for 9 hours and 8 minutes, setting at 5:26, and it will rise tomorrow at 8:16. The Moon, at full today, will rise at 5:00 this evening.
Tonight we will be able to witness, if it’s clear of course, an event between the Moon and the planet Mars. The Moon will pass in front of the planet Mars this evening. The event is called an occultation. If you think of tonight’s full moon as being a clock face, Mars will disappear at about the 8 o’clock position of the Moon’s edge at 9:13 PM and will reappear near the 1 o’clock position at 10:20 PM. These times should be within a minute or two depending on where you are in the listening area. However, because the full moon is so bright it will be best to view this with binoculars, starting earlier in the evening so you can find Mars against the brightness of the Moon, while it’s still far away from the Moon’s edge. Good luck, and clear skies!
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


If you are not in Northern Michigan the use of a program such as Stellarium will allow you to preview the occultation to derive the times of the ingress and egress times and positions for your location.
Ephemeris: 01/08/2025 – A weekly look at the whereabouts of the naked-eye planets
This is Ephemeris for Wednesday, January 8th. Today the Sun will be up for 9 hours and 1 minute, setting at 5:20, and it will rise tomorrow at 8:18. The Moon, 2 days past first quarter, will set at 4:05 tomorrow morning.
Let’s take our weekly look at the whereabouts of the naked-eye planets. At 8:00 PM this evening four of the five naked eye planets will be out. Starting from the West we have Venus the brightest of all low in the west southwest. Above and left of that is Saturn. The waxing gibbous moon is high in the South at that time. Jupiter, the second-brightest planet will be high in the southeast. The 4th planet out is Mars which is low in the east northeast with its reddish hue giving it away. Next Monday the Moon will pass directly over the planet Mars in our evening sky. The fifth naked eye planet, Mercury, is too close to the Sun on it morning side to be visible.
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: 01/01/2025 – A New Year’s Day look at the naked-eye planets
This is Ephemeris for New Year’s Day, Wednesday, January 1st, 2025. The Sun will rise at 8:20. It’ll be up for 8 hours and 53 minutes, setting at 5:13. The Moon, 2 days past new, will set at 7:02 this evening.
Let’s take our weekly look at the whereabouts of the naked-eye planets. Venus can be spotted in the south-southwestern sky by 5:45 PM, about 30 minutes after sunset, and will also be above and left of the thin crescent Moon. Venus will set at 9:10 PM. Saturn will be in the south-southwestern sky at 6 PM, above and left of Venus, which will be seen to cross paths with it on the 18th of this month. Jupiter is low in the east, about the same time Venus is first spotted. It will be a good object for the small telescope. Mars, rises tonight at 6:31. Mars is still considered a morning planet since it is still up at sunrise. But that will end on the 15th of this month, when Mars reaches opposition from the Sun.
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.
Happy New Year! I do really hope it will be happy…
Addendum




Ephemeris: 12/25/2024 – A Christmas week look at the naked-eye planets
This is Ephemeris for Christmas Day, Wednesday, December 25th. Today the Sun will be up for 8 hours and 48 minutes, setting at 5:07, and it will rise tomorrow at 8:19. The Moon, 3 days past last quarter, will rise at 4:16 tomorrow morning.
Let’s take our weekly look at the whereabouts of the naked-eye planets. Venus can be spotted in the south-southwestern sky by 5:30 PM, about 30 minutes after sunset. It will set at 8:41 PM. Saturn will be in the south at 6 PM, way above the bright star Fomalhaut. Jupiter is low in the east-northeast, about the same time Venus is first spotted. It will be a good object for the small telescope about an hour later. Mars, rises tonight at 7:44, It will appear above the Moon in the evening. Mars is still considered a morning planet since it is still up at sunrise. By 6:00 AM tomorrow Jupiter will be low in the west-northwest, to the right of the setting Orion, while reddish Mars will be high in the west-southwest.
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: 12/18/2024 – Taking our weekly look at the whereabouts of the naked-eye planets
This is Ephemeris for Wednesday, December 18th. Today the Sun will be up for 8 hours and 48 minutes, setting at 5:03, and it will rise tomorrow at 8:16. The Moon, 3 days past full, will rise at 8:36 this evening.
Let’s take our weekly look at the whereabouts of the naked-eye planets. Venus can be spotted in the south-southwestern sky by 5:30 PM, about 30 minutes after sunset. It will set at 8:41 PM. Saturn will be in the south at 6 PM, way above the bright star Fomalhaut. Jupiter is low in the east-northeast, about the same time Venus is first spotted. It will be a good object for the small telescope about an hour later. Mars, rises tonight at 7:44, It will appear above the Moon in the evening. Mars is still considered a morning planet since it is still up at sunrise. By 6:00 AM tomorrow Jupiter will be low in the west-northwest, to the right of the setting Orion, while reddish Mars will be high in the west-southwest.
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: 12/11/2024 – Where are the naked-eye planets this week?
This is Ephemeris for Wednesday, December 11th. Today the Sun will be up for 8 hours and 51 minutes, setting at 5:02, and it will rise tomorrow at 8:11. The Moon, 3 days past first quarter, will set at 5:00 tomorrow morning.
Let’s take our weekly look at the whereabouts of the naked-eye planets. Venus can be spotted in the south-southwestern sky by 5:30 PM, about 30 minutes after sunset. It will set at 8:25 PM. Saturn will be in the south at 6 PM, way above the bright star Fomalhaut. Jupiter is low in the east-northeast, about the same time as when Venus is first spotted. It will be a good object for the small telescope about an hour later. Mars, rises tonight at 8:17, Mars is still considered a morning planet since it is still up at sunrise. By 6:00 AM tomorrow Jupiter will be low in the west-northwest, to the right of the setting Orion, while reddish Mars will be high in the west-southwest.
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: 12/04/2024 – Checking where the naked-eye planets are now
This is Ephemeris for Wednesday, December 4th. Today the Sun will be up for 8 hours and 58 minutes, setting at 5:02, and it will rise tomorrow at 8:04. The Moon, 3 days past new, will set at 7:59 this evening.
Let’s take our weekly look at the whereabouts of the naked-eye planets. Venus can be spotted low in the south-southwestern sky by 5:30 PM, about 30 minutes after sunset. It appears above the Moon tonight, and will set at 8:09 PM. Saturn will be in the south-southeast at 6 PM. Jupiter will rise at 5:09 PM in the east-northeast, and be a good object for the small telescope about an hour later. Mars, rises tonight at 8:47, Both Mars and Jupiter are considered morning planets, since they are still up at sunrise, though Jupiter will be an evening planet after Saturday. By 6:00 AM tomorrow Jupiter will be in the west, above and right of Orion, while reddish Mars will be high in the southwest. Jupiter and Saturn are great planets to view with a small telescope.
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: 11/27/2024 – Checking up on the naked-eye planets this week
This is Ephemeris for Wednesday, November 27th. Today the Sun will be up for 9 hours and 9 minutes, setting at 5:05, and it will rise tomorrow at 7:57. The Moon, 4 days before new, will rise at 5:23 tomorrow morning.
Let’s take our weekly look at the whereabouts of the naked-eye planets. Venus can be spotted low in the south-southwestern sky by 5:30 PM, about 25 minutes after sunset. It will set at 7:52. Saturn will be in the south-southeast at 6 PM. Jupiter will rise at 5:45 PM in the east northeast, and be a good object for the small telescope about an hour later. Mars, rises tonight near 9:16, Both Mars and Jupiter are considered morning planets, since they are still up at sunrise. By 6 AM tomorrow Jupiter will be in the west, above and right of Orion, while reddish Mars will be high in the southwest. Jupiter and Saturn are good planets to view with a small telescope, Mars will appear only a quarter the diameter of Jupiter.
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: 11/20/2024 – Our weekly look at the naked-eye planets
This is Ephemeris for Wednesday, November 20th. Today the Sun will be up for 9 hours and 22 minutes, setting at 5:09, and it will rise tomorrow at 7:48. The Moon, 2 days before last quarter, will rise at 9:45 this evening.
Let’s take our weekly look at the whereabouts of the naked-eye planets. Venus can be spotted low in the southwestern sky by 5:30 PM, about 20 minutes after sunset. It will set at 7:41. Saturn will be in the south-southeast at 6 PM. Jupiter will rise at 6:11 PM in the east northeast, and be a good object for the small telescope about an hour later. Mars, rises tonight near 9:36, just ahead of the Moon and will be leading it through the night skies tonight. By 6:00 AM tomorrow Jupiter will be in the west, above and right of Orion, while reddish Mars will be high in the southwest to the right of the waning gibbous Moon. Jupiter and Saturn are good planets to view with a small telescope, Mars will appear only a quarter the diameter of Jupiter.
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.
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