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Astronomy Picture of the Day - In Motion: Uranus and Moons
APOD.NASA.gov ^
| 30 Nov, 2021
| Video Credit: David Campbell (U. Hertfordshire), Bayfordbury Observatory
Posted on 11/30/2021 3:17:45 PM PST by MtnClimber
Explanation: What's that moving across the sky? A planet just a bit too faint to see with the unaided eye: Uranus. The gas giant out past Saturn was tracked earlier this month near opposition -- when it was closest to Earth and at its brightest. The featured video captured by the Bayfordbury Observatory in Hertfordshire, UK is a four-hour time-lapse showing Uranus with its four largest moons in tow: Titania, Oberon, Umbriel and Ariel. Uranus' apparent motion past background stars is really dominated by Earth's own orbital motion around our Sun. The cross seen centered on Uranus is called a diffraction spike and is caused by light diffracting around the four arms that hold one of the telescope's mirrors in place. The rotation of the diffraction spikes is not caused by the rotation of Uranus but, essentially, by the rotation of the Earth. During the next few months Uranus itself will be visible with binoculars, but, as always, to see its moons will require a telescope.
TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; ariel; astronomy; moons; nasa; oberon; science; titania; umbriel; uranus
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To: 21stCenturion; 21twelve; 4everontheRight; abb; AFB-XYZ; America_Right; AZ .44 MAG; BBB333; ...
Today's image is a video at the source link. Pinging the APOD list.
🪐 🌟 🌌 🍔
2
posted on
11/30/2021 3:18:31 PM PST
by
MtnClimber
(For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
To: MtnClimber
I really don’t say: ‘Thanks’ often enough for these (and your myriad of other excellent) posts — THANKS!
3
posted on
11/30/2021 3:20:10 PM PST
by
BBB333
(The Power Of Trump Compels You!)
To: MtnClimber
Uranus and moons.
What’s the difference?
4
posted on
11/30/2021 3:20:15 PM PST
by
Jonty30
(I love giving directions, because it is like me to tell people where to go and how to get there.)
To: Jonty30
Uranus and moons. What’s the difference?You are funny
5
posted on
11/30/2021 3:21:42 PM PST
by
FatherofFive
(We support Trump. Not the GOP)
To: Jonty30
Location. Location. Location.
The moons surround Uranus.
6
posted on
11/30/2021 3:21:46 PM PST
by
CheshireTheCat
("Forgetting pain is convenient.Remembering it agonizing.But recovering truth is worth the suffering")
To: MtnClimber
7
posted on
11/30/2021 3:24:23 PM PST
by
BenLurkin
(The above is not a statement of fact. It is either opinion, or satire. Or both.)
To: MtnClimber
Maybe we should have stuck with William Herschel's original name for the planet he discovered: Georgium Sidus (in honor of King George III).
To: BBB333
You are certainly welcome!
9
posted on
11/30/2021 3:31:37 PM PST
by
MtnClimber
(For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
To: MtnClimber
My Very Excellent Mom Just Served Us Noodles
10
posted on
11/30/2021 3:34:29 PM PST
by
Repeal The 17th
(Get out of the matrix and get a real life.)
To: Repeal The 17th
(...it used to be “Nice Pasta” until Pluto got demoted...)
11
posted on
11/30/2021 3:46:24 PM PST
by
Repeal The 17th
(Get out of the matrix and get a real life.)
To: MtnClimber
The title is enough. Don’t need no stupid picture.
To: MtnClimber
Are the moons of Uranus dingleberries?
In Motion: Uranus and Moons | November 26, 2021 | APOD Videos | David Campbell (U. Hertfordshire) | Bayfordbury Observatory, UK | 2021 November 4
14
posted on
11/30/2021 3:53:01 PM PST
by
SunkenCiv
(Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
To: Jonty30
Uranus and moons. What’s the difference?
There's a hole lot of difference...
15
posted on
11/30/2021 8:04:51 PM PST
by
null and void
(Newspapers, The Prints of Lies)
To: MtnClimber
16
posted on
12/01/2021 5:17:25 AM PST
by
Red Badger
(Homeless veterans camp in the streets while illegal aliens are put up in hotels.....................)
To: null and void; Jonty30
This is why it’s called ‘asstronomy’....................
17
posted on
12/01/2021 5:20:58 AM PST
by
Red Badger
(Homeless veterans camp in the streets while illegal aliens are put up in hotels.....................)
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