Deimos Mars' Moon!

From its size and shape, to its orbit, to how it might further humanity across the stars! Join us as we explore Deimos: Mars' Moon!
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8. History
Deimos was discovered by Asaph Hall, III at the United States Naval Observatory in Washington, D.C. on 12 August 1877, at about 07:48 UTC (given in contemporary sources as "11 August 14:40" Washington Mean Time, using a pre-1925 astronomical convention of beginning a day at noon, so 12 hours must be added to get the actual local mean time). Hall also discovered Phobos on 18 August 1877, at about 09:14 GMT, after deliberately searching for Martian moons.
It is named after Deimos, a figure representing dread in Greek mythology. The names, at first spelled Phobus and Deimus, were suggested by Henry Madan (1838-1901), Science Master of Eton, from Book XV of the Iliad, where Ares (the Roman god Mars) summons Dread (Deimos) and Fear (Phobos).
Hall recorded his discovery of Phobos in his notebook as follows:
"I repeated the examination in the early part of the night of 11th [August 1877], and again found nothing, but trying again some hours later I found a faint object on the following side and a little north of the planet. I had barely time to secure an observation of its position when fog from the River stopped the work. This was at half past two o'clock on the night of the 11th. Cloudy weather intervened for several days.
On 15 August the weather looking more promising, I slept at the Observatory. The sky cleared off with a thunderstorm at 11 o'clock and the search was resumed. The atmosphere however was in a very bad condition and Mars was so blazing and unsteady that nothing could be seen of the object, which we now know was at that time so near the planet as to be invisible.
On 16 August the object was found again on the following side of the planet, and the observations of that night showed that it was moving with the planet, and if a satellite, was near one of its elongations. Until this time I had said nothing to anyone at the Observatory of my search for a satellite of Mars, but on leaving the observatory after these observations of the 16th, at about three o'clock in the morning, I told my assistant, George Anderson, to whom I had shown the object, that I thought I had discovered a satellite of Mars. I told him also to keep quiet as I did not wish anything said until the matter was beyond doubt. He said nothing, but the thing was too good to keep and I let it out myself. On 17 August between one and two o'clock, while I was reducing my observations, Professor Newcomb came into my room to eat his lunch and I showed him my measures of the faint object near Mars which proved that it was moving with the planet.
On 17 August while waiting and watching for the outer moon, the inner one was discovered. The observations of the 17th and 18th put beyond doubt the character of these objects and the discovery was publicly announced by Admiral Rodgers."
7. Orbits and Rotations
Deimos's orbit is nearly circular and is close to Mars's equatorial plane. Deimos is possibly an asteroid that was perturbed by Jupiter into an orbit that allowed it to be captured by Mars, though this hypothesis is still controversial and disputed. Both Deimos and Phobos have very circular orbits which lie almost exactly in Mars' equatorial plane, and hence a capture origin requires a mechanism for circularizing the initially highly eccentric orbit, and adjusting its inclination into the equatorial plane, most likely by a combination of atmospheric drag and tidal forces; it is not clear that sufficient time was available for this to have occurred for Deimos.
As seen from Mars, Deimos would have an angular diameter of no more than 2.5 minutes (sixty minutes make one degree), one twelfth of the width of the Moon as seen from Earth, and would therefore appear almost star-like to the naked eye. At its brightest ("full moon") it would be about as bright as Venus is from Earth; at the first- or third-quarter phase it would be about as bright as Vega. With a small telescope, a Martian observer could see Deimos's phases, which take 1.2648 days (Deimos's synodic period) to run their course.
credits: nasa/ jpl-caltech/university of arizona
credits : esa/dlr/fu berlin
credits: viking project/nasa/jpl/ justin cowart
credits: malin space science systems
credits: nasa/jpl/cornell/ texas A&M
credits: esa/dlr/fu berlin/j.cowart, cc by-sa 3.0/JHU/ap/asu/ssi/msss
Video Chapters:
00:00 Introduction
00:18 History
03:28 Orbits and Rotations
05:55 Size and Structure
07:15 Exploration
10:06 Solar Transit
10:50 Controversial Origins
12:41 Odd Shape
13:29 Colony Material
#insanecuriosity #deimos #moon

[@spidernerd8882]

Deimos: *Exists*
Me: the only **madness** moon

[@khyron6]

Mars moons would be a good jumping point to the asteroid belt and beyond.

[@matthanrath497]

Yes and Deimos is leaving Mars anyway soooo…. ! Well we could maybe change “Deimos” into a Generation rocket 🚀 ship to start populating the Milky Way and Andromeda etc. etc. 😎👍

[@spacepiratejacen2258]

Very interesting and entertaining! Thank you! :D

[@julianaylor4351]

When Deimos escapes has anyone worked out where it might go?

[@stevemathis9702]

I love this channel the universe is amazing so many things we don't even know of its amazing topic

[@spice6966]

now where’s sanford (it’s a joke)

[@BigD-jc6rj]

Who else is here from the Ultimate Doom Walkthrough? Also, does anyone else think the narrator's voice in this video sounds A LOT like BigMacDavis?

[@rerimontgomery6272]

I like the subject
More pictures

[@Orang315]

I don’t think we’re even capable of ever getting to Mars

[@sansterzyzofficial5217]

Theres to names that are the same name one on madness combat and mars moon

[@Vibri_but_Paranoid]

madness Comba-

[@sansterzyzofficial5217]

t

[@Vibri_but_Paranoid]

@@sansterzyzofficial5217 you fucking did it, you destroyed deimos the moon.

[@KuDastardly]

What are the chances that Deimos itself would be converted into a colony ship? :3

[@phoenixwyvern355]

I 55.5567 % if the eggheads don't make a portal or a bioweapon.

[@matthanrath497]

Excellent I’m glad I’m not the only one thinking like that !!😎👍

[@KuDastardly]

@@matthanrath497 And the fact that Deimos' orbit will help it naturally break free from Mars' gravity force in a century or so makes it plausible. Damn Bungie, you research hardcore.

[@IND3648]

Does it have another moon named stanford?

[@rlicon1970]

Phobos is pisssed.

[@extrafrankie4732]

👀

[@sillyfella2009]

Another fun fact:
Deimos floats above Hell itself!

[@technoman3564]

Hell yeah. Now a certain green man will jump to hell

[@poppyclypsenoir9156]

You already used all this material in your Phobos video.

[@kojakd]

Deimos from madness combat:

[@sbirk3946]

I have finally met a Fellow Madness Combat fan like me

[@sbirk3946]

@Caden Gaming shut, welcome to the internet

[@technoman3564]

Doom fans anyone

[@evalleii1980]

I'm a moon

[@technoman3564]

Yeah we know this video is fake
And deimos floats above hell itself

[@chinese_bot]

i am hunter biden

[@poruatokin]

Horrible Robovoice (If you are human, then you speak really weird)

[@frisk1078]

Voices

[@z3xd]

Im better than him.