Archive

Posts Tagged ‘Saturn’

05/18/2022 – Ephemeris – Let’s search for the naked-eye planets for this week

May 18, 2022 Comments off

This is Ephemeris for Wednesday, May 18th. Today the Sun will be up for 14 hours and 56 minutes, setting at 9:07, and it will rise tomorrow at 6:10. The Moon, 2 days past full, will rise at 12:43 tomorrow morning.

Let’s search for the naked-eye planets for this week. The one bright planet in the evening sky, Mercury, will pass between us and the Sun this Saturday to join the rest of the naked-eye planets in the morning sky. So that’s where the planet action is. At 5:15 am tomorrow, the planets will be spread out from brilliant Venus low in the east to Saturn higher in the southeast. Venus may be missed at that time, but may be up sufficiently by 5:30. To the right of Venus is the quite bright Jupiter. Farther right will be the dimmest of the 4, Mars, which is closing on Jupiter. The two will seem to pass each other on the 29th of this month. All will be in line, sloping to the upper right. They are still quite a sight to behold in the morning twilight.

The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT – 4 hours). They may be different for your location.

Addendum

Annotated Moon animation

The Moon as it might appear in binoculars or a small telescope tomorrow morning at 1:30 May 19, 2022. Created using Stellarium, GIMP and LibreOffice.

The morning planet parade

The morning planet parade is widening as Venus is moving away from Jupiter and toward the Sun. Mars is approaching Jupiter and will catch up to it on the 29th. These are shown at 5:15 am, or about an hour before sunrise tomorrow morning, May 19, 2022. Click on the image to enlarge it. Created using Stellarium.

Telescopic views of Venus, Saturn and Jupiter

Views of Venus, Jupiter, and Saturn (north up) as they would be seen in a small telescope, with the same magnification, tomorrow morning at 5:15 am, May 19, 2022. I do not show planets less than 10 seconds of arc in diameter. Apparent diameters: Venus 14.73″, 73.9% illuminated; Saturn 16.99″, its rings 39.59″; Jupiter 36.17″. Mars is not shown, its apparent diameter is 6.14″ and is 88.1% illuminated. The ” symbol means seconds of arc (1/3600th of a degree.) Created using Cartes du Ciel (Sky Charts).

Planets and the Moon on a single night

The naked-eye planets and the Moon at sunset and sunrise on a single night, starting with sunset on the right on May 18, 2022. The night ends on the left with sunrise on the 19th. Notice that all the naked-eye planets except Mercury are in the morning sky now. Click on the image to enlarge it. Created using my LookingUp program.

05/11/2022 – Ephemeris – Let’s search for the naked-eye planets for this week

May 11, 2022 Comments off

This is Bob Moler with Ephemeris for Wednesday, May 11th. Today the Sun will be up for 14 hours and 40 minutes, setting at 8:59, and it will rise tomorrow at 6:18. The Moon, 3 days past first quarter, will set at 4:45 tomorrow morning.

Let’s search for the naked-eye planets for this week. The one bright planet in the evening sky, Mercury, is now too dim and close to the Sun to be seen, so the only planet action is in the morning sky where the other 4 naked-eye planets are. At 5:15 am tomorrow the planets will be spread out low from the east to southeast with brilliant Venus lowest and due east to Saturn almost exactly in the southeast. Venus may be missed at that time, but may be up sufficiently by 5:30. To the right of Venus is the quite bright Jupiter. Farther right will be the dimmest of the four, Mars. Farther to the right will be Saturn. All will be in A sloping to the upper right. They are still quite a sight to behold in the morning twilight.

The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT – 4 hours). They may be different for your location.

Addendum

Annotated Binocular Moon

Animated annotated Binocular Moon for this evening, May 11, 2022. Created using Virtual Moon Atlas, GIMP and LibreOffice.

Translations

Mare Crisium – Sea of Crises
Mare Fecunditatis – Sea of Fertility
Mare Frigoris – Sea of Cold
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
Sinus Iridium – Bay of Rainbows
Sinus Medii – Bay of the Center

Note that Mare is pronounced Mar-é

Morning planet parade

The morning planet parade is widening as Venus is moving away from Jupiter, and Mars is approaching Jupiter. These are shown at 5:15 am, or about an hour before sunrise tomorrow morning, May 12, 2022. Created using Stellarium.

Telescopic views of Venus, Saturn and Jupiter

Views of Venus, Jupiter, and Saturn (north up) as they would be seen in a small telescope, with the same magnification, tomorrow morning at 5:15 am, May 12, 2022. I do not show planets less than 10 seconds of arc in diameter. Apparent diameters: Venus 15.42″, 71.6% illuminated; Saturn 16.79″, its rings 39.12″; Jupiter 35.60″. Mars is not shown, its apparent diameter is 5.99″ and is 88.6% illuminated. The ” symbol means seconds of arc (1/3600th of a degree.) Created using Cartes du Ciel (Sky Charts).

Planets and the Moon on a single night

The naked-eye planets and the Moon at sunset and sunrise on a single night, starting with sunset on the right on May 11, 2022. The night ends on the left with sunrise on the 12th. Notice that all the naked-eye planets except Mercury are in the morning sky now. Click on the image to enlarge it. Created using my LookingUp program.

05/04/2022 – Ephemeris – Let’s search for the naked-eye planets for this week

May 4, 2022 Comments off

This is Ephemeris for Wednesday, May 4th. Today the Sun will be up for 14 hours and 23 minutes, setting at 8:51, and it will rise tomorrow at 6:27. The Moon, halfway from new to first quarter, will set at 1:03 tomorrow morning.

Let’s search for the naked-eye planets for this week. There is one bright planet in the evening sky. Mercury may be spotted around and after 10 this evening very low in the west-northwest and be visible for the next half hour or so before it sets at 10:40 pm. After that, the planet action shifts to the morning sky. The other 4 naked-eye planets are there. By 5:30 or 5:45 am, the planets will be spread out low from the east to southeast with brilliant Venus lowest in the east, higher and right is Jupiter. Dim Mars will be farther to the right and a bit above Jupiter, while brighter Saturn will be even farther right and above Mars. All four will have risen by 5 am, but it will take a very low eastern horizon to pick them all up at that time.

The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT – 4 hours). They may be different for your location.

Addendum

Mercury in evening twilight

Mercury in evening twilight, with competition from bright winter stars and the Moon at 10 pm, or about an hour after sunset. It might take a pair of binoculars to pick Mercury out of twilight.
Created using Stellarium.

Binocular Moon

The Moon as it might appear in binoculars tonight, showing earth shine. May 4, 2022. Created using Stellarium.

Morning planet parade

The morning planet parade is widening as Venus is moving away from Jupiter, and Mars is approaching the giant planet. These are shown at 5:30 am, or about an hour before sunrise. Created using Stellarium.

Telescopic views of Venus, Saturn and Jupiter

Views of Venus, Jupiter, and Saturn (north up) as they would be seen in a small telescope, with the same magnification, tomorrow morning at 5:30 am, May 5, 2022. I do not show planets less than 10 seconds of arc in diameter. Apparent diameters: Venus 16.33″, 68.7% illuminated; Saturn 16.60″, its rings 38.67″; Jupiter 35.09″. Mars is not shown, its apparent diameter is 5.84″ and is 89.1% illuminated. Mercury, in the evening, has an apparent diameter of 9.21″, and it’s 22.2% illuminated. The ” symbol means seconds of arc (1/3600th of a degree.) Created using Cartes du Ciel (Sky Charts).

Planets and the Moon on a single night

The naked-eye planets and the Moon at sunset and sunrise on a single night, starting with sunset on the right on May 4, 2022. The night ends on the left with sunrise on the 5th. Notice that all the naked-eye planets except Mercury are in the morning sky now. Click on the image to enlarge it. Created using my LookingUp program.

04/27/2022 – Ephemeris – Let’s search for the naked-eye planets for this week

April 27, 2022 Comments off

This is Bob Moler with Ephemeris for Wednesday, April 27th. Today the Sun will be up for 14 hours and 4 minutes, setting at 8:42, and it will rise tomorrow at 6:37. The Moon, 3 days before new, will rise at 5:56 tomorrow morning.

Let’s search for the naked-eye planets for this week. There is one bright planet in the evening sky. Mercury may be spotted around and after 9:30 this evening very low in the west-northwest and be visible for the next hour or so before it sets at 10:43 pm. After that, the planet action shifts to the morning sky. The other 4 naked-eye planets are there. By 5:45 am, the planets will be spread out low from the east to southeast with brilliant Venus closer than ever to Jupiter, lowest in the east. Dim Mars will be to the right and a bit above Venus, while brighter Saturn will be right and above Mars. Saturn will rise tomorrow at 4 am, with Mars following at 4:40. Venus will rise at 5:10 tomorrow morning, followed by Jupiter four minutes later.

The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT – 4 hours). They may be different for your location.

Addendum

Mercury and bright winter stars in evening twilight

Mercury and bright winter stars in evening twilight at 9:30 tonight, or about 45 minutes after sunset tonight, April 27, 2022. It might take binoculars to spot the stars of Orion and Taurus, and Mercury itself, which is fading, becoming a crescent. Click on the image to enlarge it. Created using Stellarium.

The morning planet parade

The morning planet parade at 5:45 am or about 50 minutes before sunrise tomorrow, April 28, 2022. Venus will overtake Jupiter during the day, Saturday the 30th. Created using Stellarium.

Jupiter and Venus in binoculars

Jupiter and Venus in as they might be seen in binoculars, Saturday morning, April 30, 2022. The difference in brightness of Venus compared to Jupiter will be much greater than seen here. The planets will be about a half a degree apart, or about the width of the Moon. The image shows two satellites of Jupiter, Ganymede to the lower left of Jupiter and Callisto to the upper right. A third satellite, Io, is close to the upper right, within the enlarged Jupiter image. Europa is either behind the planet or in its shadow. Sunday morning, Jupiter will be on the other side of Venus, and a bit farther away. Created using Stellarium.

Telescopic views of Venus, Saturn and Jupiter

Views of Venus, Jupiter, and Saturn (north up) as they would be seen in a small telescope, with the same magnification, tomorrow morning at 5:45 am, April 28, 2022. I do not show planets less than 10 seconds of arc in diameter. Apparent diameters: Venus 16.78″, 67.4% illuminated; Saturn 16.47″, its rings 38.35″; Jupiter 34.76″. Mars is not shown, its apparent diameter is 5.74″ and is 89.5% illuminated. Mercury, in the evening, has an apparent diameter of 8.05″, and it’s 35.6% illuminated. The ” symbol means seconds of arc (1/3600th of a degree.) Created using Cartes du Ciel (Sky Charts).

Planets and the Moon on a single night

The naked-eye planets and the Moon at sunset and sunrise on a single night, starting with sunset on the right on April 27, 2022. The night ends on the left with sunrise on the 28th. Notice that all the naked-eye planets except Mercury are in the morning sky now. Click on the image to enlarge it. Created using my LookingUp program.

04/26/2022 – Ephemeris – Tomorrow is the Moon’s final stop in passing the parade of morning planets

April 26, 2022 Comments off

This is Bob Moler with Ephemeris for Tuesday, April 26th. Today the Sun will be up for 14 hours and 1 minute, setting at 8:41, and it will rise tomorrow at 6:38. The Moon, 3 days past last quarter, will rise at 5:37 tomorrow morning.

Also, tomorrow morning, the Moon will conclude its sweep under the four bright planets of the morning sky by being seen below the left-most and lowest of the four, Jupiter. With nearby Venus, it makes a small right triangle The other planets in order to the right of Jupiter are Venus, Mars and finally Saturn. Jupiter and Venus are appearing to get closer to each other every day now. They will cross paths in conjunction this Saturday. Venus is slowly retreating back and around behind the Sun. Jupiter now appears to be moving away from the Sun. Both, however, are still moving eastward against the stars, it’s just that Venus is moving faster. Next month, when the Moon passes by these planets, they will be a different order.

The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT – 4 hours). They may be different for your location.

Addendum

The Moon passing the morning planets from Sunday to Wednesday mornings 4/24 to 4/27/2022

The Moon passing the morning planets from Sunday to Wednesday mornings 4/24 to 4/27/2022. Note also the approach of Jupiter and Venus. Their paths will cross on Saturday, 4/30/2022. Click on the image to enlarge it. Created using Stellarium and GIMP.

04/25/2022 – Ephemeris – The moon is passing the morning planet parade

April 25, 2022 Comments off

This is Bob Moler with Ephemeris for Monday, April 25th. Today the Sun will be up for 13 hours and 58 minutes, setting at 8:40, and it will rise tomorrow at 6:40. The Moon, 2 days past last quarter, will rise at 5:16 tomorrow morning.

Over this and the next couple of mornings, the waning crescent Moon will be passing the four morning planets. This morning it was below and between Saturn and Mars. Tomorrow morning, the Moon will be between and below Mars and Venus. Wednesday morning the Moon, Venus and Jupiter will make a nice right triangle with Jupiter above and a bit left of the Moon and Venus will appear above and a bit to the right of it. There’s some motion between Venus and Jupiter. While both are traveling eastward when comparing them to the stars, Venus is moving eastward faster, and is moving toward the Sun in our sky. Jupiter is moving away from the Sun from our vantage point. They will cross paths on Saturday.

The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT – 4 hours). They may be different for your location.

Addendum

The Moon passing the morning planets from Sunday to Wednesday mornings 4/24 to 4/27/2022

The Moon passing the morning planets from Sunday to Wednesday mornings 4/24 to 4/27/2022. Note also the approach of Jupiter and Venus. Their paths will cross on Saturday, 4/30/2022. Click on the image to enlarge it. Created using Stellarium and GIMP.

04/20/2022 – Ephemeris – Let’s search for the naked-eye planets for this week

April 20, 2022 Comments off

This is Ephemeris for Wednesday, April 20th. Today the Sun will be up for 13 hours and 44 minutes, setting at 8:34, and it will rise tomorrow at 6:48. The Moon, 3 days before last quarter, will rise at 1:51 tomorrow morning.

Let’s search for the naked-eye planets for this week. There is one bright planet in the evening sky. Mercury may be spotted around and after 9:15 this evening very low in the west-northwest and be visible for the next half hour or so. After that, the planet action shifts to the morning sky. The other 4 naked-eye planets are there. By 6 am, the planets will be spread out low from the east to southeast with brilliant Venus moving closer to Jupiter, lowest in the east. Dim Mars will be to the right and a bit above Venus, while brighter Saturn will be right and above Mars. Saturn will rise tomorrow at 4:27 am, with Mars following at 4:55. Venus will rise at 5:19 tomorrow morning, followed by Jupiter at 5:39 am. The Moon will be in the south at 6 am.

The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT – 4 hours). They may be different for your location.

Addendum

Mercury in the evening

Mercury in the evening at 9:15, or about 40 minutes after sunset tonight, April 20, 2022. Created using Stellarium.

Annotated Binocular Moon

Annotated Binocular Moon. What the Moon might look like tomorrow morning, April 21, 2022. Created using Stellarium, GIMP and LibreOffice.

Translations

Mare Frigoris – Sea of Cold
Mare Humorum – Sea of Moisture
Mare Imbrium – Sea of Showers
Mare Nubium – Sea of Clouds
Mare Serenitatis – Sea of Serenity
Oceanus Procellarum – Ocean of Storms

Note that Mare is pronounced Mar-é

Parade of the morning planets

Parade of the morning planets at 6 am or about 45 minutes before sunrise tomorrow, April 21, 2022. Created using Stellarium.

Telescopic views of Venus, Saturn and Jupiter

Views of Venus, Saturn, and Jupiter (north up) as they would be seen in a small telescope, with the same magnification, tomorrow morning at 6:00 am, April 21, 2022. I do not show planets less than 10 seconds of arc in diameter. Apparent diameters: Venus 18.01″, 64.0% illuminated; Saturn 16.24″, its rings 37.82″; Jupiter 34.24″. Mars is not shown, its apparent diameter is 5.56″ and is 90.2% illuminated. The moons of Jupiter and Saturn may not be visible in twilight. Io transiting the face of Jupiter definitely will not be visible. Jupiter is shown here much dimmer compared to its moons than it actually is. The ” symbol means seconds of arc (1/3600th of a degree.) Created using Cartes du Ciel (Sky Charts).

Planets and the Moon on a single night

The naked-eye planets and the Moon at sunset and sunrise on a single night, starting with sunset on the right on April 20, 2022. The night ends on the left with sunrise on the 21st. Notice that all the naked-eye planets are in the morning sky now, with the Moon still hanging out in the evening sky. Click on the image to enlarge it. Created using my LookingUp program.

04/13/2022 – Ephemeris – Let’s search for the naked-eye planets for this week

April 13, 2022 Comments off

This is Ephemeris for Wednesday, April 13th. Today the Sun will be up for 13 hours and 23 minutes, setting at 8:25, and it will rise tomorrow at 7:00. The Moon, 3 days before full, will set at 6:22 tomorrow morning.

Let’s search for the naked-eye planets for this week. There is one bright planet in the evening sky, but too close to the Sun to be seen. Mercury passed behind the Sun eleven days ago and will be visible later this month, so the planet action still shifts to the morning sky. The other 4 naked-eye planets are there, though Jupiter may be too low in the sky to be seen. By 6:15, the planets will be spread out low in the east-southeast to southeast, with brilliant Venus near the center of the four. Dim Mars will be to the right and a bit above Venus. Brighter Saturn will be right and above Mars. Jupiter will be near the horizon and left of Venus. Jupiter can be still spotted by 6:30 along with Venus and followed even closer to sunrise.

The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT – 4 hours). They may be different for your location.

Addendum

Tonight's Moon annotated

Tonight’s Moon annotated, for 10 pm, April 13, 2022, showing major formations visible in binoculars or a small telescope. Created using Stellarium.

Translations

Mare Crisium – Sea of Crises
Mare Fecunditatis – Sea of Fertility
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

Lineup of morning planets

The lineup of morning planets at 6:15 am, about 45 minutes before sunrise tomorrow morning, April 14, 2022. Created using Stellarium.

Telescopic views of Venus, Saturn and Jupiter

Views of Venus, Saturn, and Jupiter (north up) as they would be seen in a small telescope, with the same magnification, tomorrow morning at 6:15 am, April 14, 2022. I do not show planets less than 10 seconds of arc in diameter. Apparent diameters: Venus 19.12″, 61.2% illuminated; Saturn 16.07″, its rings 37.44″; Jupiter 33.90″. Mars is not shown, its apparent diameter is 5.43″ and is 90.7% illuminated. The moons of Jupiter and Saturn may not be visible in twilight. The ” symbol means seconds of arc (1/3600th of a degree.) Created using Cartes du Ciel (Sky Charts).

Planets and the Moon on a single night

The naked-eye planets and the Moon at sunset and sunrise on a single night, starting with sunset on the right on April 13, 2022. The night ends on the left with sunrise on the 14th. Click on the image to enlarge it. Created using my LookingUp program.

04/06/2022 – Ephemeris – Let’s search for the naked-eye planets for this week

April 6, 2022 Comments off

This is Bob Moler with Ephemeris for Wednesday, April 6th. Today the Sun will be up for 13 hours and 2 minutes, setting at 8:16, and it will rise tomorrow at 7:12. The Moon, 3 days before first quarter, will set at 2:16 tomorrow morning.

Let’s search for the naked-eye planets for this week. There is one bright planet in the evening sky, but too close to the Sun to be seen. Mercury passed behind the Sun last Saturday and will be visible later this month, so the planet action still shifts to the morning sky. The other 4 naked-eye planets are there, though Jupiter is too close to the Sun to be seen. Late winter and early spring mornings aren’t the best for spotting planets close to the Sun, since they tend to lie low in the southeastern sky. Venus, Mars, and Saturn will rise within 16 minutes of each other by 5:35. By 6:30, they will be low in the east-southeast with dim Saturn to the right and a bit above Venus, and much dimmer Mars to the left and below Saturn.

The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT – 4 hours). They may be different for your location.

Addendum

Annotated crescent Moon

Annotated crescent Moon animation of the Moon tonight, April 6, 2022. The annotations are the official names in Latin of the seas of Tranquility, Crises, Nectar, and Fertility. Created using Stellarium.

Venus, Mars and Saturn in the morning

Venus, Mars and Saturn as they might be seen around 6:30 tomorrow morning, April 7, 2022. Created using Stellarium.

Telescopic views of Venus and Saturn

Views of Venus and Saturn (north up) as they would be seen in a small telescope, with the same magnification, tomorrow morning at 6:30 am, April 7, 2022. I do not show planets less than 10 seconds of arc in diameter. Apparent diameters: Venus 20.38″, 58.2% illuminated; Saturn 15.92″, its rings 37.08″. Mars is not shown, its apparent diameter is 5.30″ and is 91.2% illuminated. The ” symbol means seconds of arc (1/3600th of a degree.) Created using Cartes du Ciel (Sky Charts).

Planets and the Moon on a single night

The naked-eye planets and the Moon at sunset and sunrise on a single night, starting with sunset on the right on April 6, 2022. The night ends on the left with sunrise on the 7th. Notice that all the naked-eye planets are in the morning sky now, with the Moon still hanging out in the evening sky. Click on the image to enlarge it. Created using my LookingUp program.

04/04/2022 – Ephemeris – Two apparent planetary encounters tonight and tomorrow morning

April 4, 2022 Comments off

This is Ephemeris for Monday, April 4th. Today the Sun will be up for 12 hours and 56 minutes, setting at 8:14, and it will rise tomorrow at 7:16. The Moon, 3 days past new, will set at 12:10 tomorrow morning. | We have action at both end of the night tonight. This evening the Pleiades, or Seven Sisters star cluster, will be seen just above and right of the three-day old crescent Moon. The cluster will be at the one o’clock position from the Moon at 9 pm. At the other side of night, at 6:30 tomorrow morning, Venus will be shining brilliantly in the east-southeast and the planets Mars and Saturn will be very close together. This type of appearance is called a conjunction. Mars will appear about three-quarters of a moon diameter below and left of the slightly brighter Saturn. Mars is getting slowly brighter as the Earth creeps up on it, to overtake it this December. It’s currently 165 million miles (266 million kilometers) away.

The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT – 4 hours). They may be different for your location.

Addendum

The Moon and the Pleiades and Hyades tonight at 9 pm EDT, April 4, 2022. The Moon appears near the stepsister star clusters tonight. In Greek mythology, these two star clusters were indeed stepsisters, fathered by the god Atlas with different mothers. Created using Stellarium with additional captions in LibreOffice.

Saturn-Mars conjunction

A Saturn-Mars conjunction with brilliant Venus nearby as it might look like tomorrow morning, April 5, 2022. Created using Stellarium with labels added in LibreOffice.