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#1 2021-12-26 11:40:59

Mars_B4_Moon
Member
Registered: 2006-03-23
Posts: 4,782

Olympus Mons as lift off or an observation site?

So if Mars is already colonized in the future, we have robotic drones and 3d printers make materials for our site, what are the advantages of having a site on Olympus Mons. The mountain itself could be used as an unconventional way to Low Orbit, Rail gun maybe some kind of Sky track or ramjet rocket-jet Air-launch-to-orbit. On Mars there would be no locals so you would not have Hawaiians protesting against building a Telescope on a Mountain of Mars beacuse it offended their religion or culture, activists have legally forced a dismantle older telescopes on Mauna Kea, the protests are ongoing 2014 – present and it has cost depending on who you ask some say its a billion some say thousands or others say its millions of Dollars, it has cost $3 million alone in police overtime. A new site on Mars it could be used for visible or perhaps IR or  large radio telescope. Mars has absorbition in the Near Infra-red if I remember correctly, the Earth has far more absorbtion in Radio, Microwave, IR, UV and X-ray so perhaps Mars and the Moon could become part of a larger array joining up with Earth's Radio window, maybe join with the VLBA locations and HSA radio locations around the world, Olympus Mons sites above and rises above dust storms,  it would have one of the darkest night skies, it has no light polution, apart from Deep Space it could become one of the best locations for astronomical observations.

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#2 2021-12-26 14:32:20

tahanson43206
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Registered: 2018-04-27
Posts: 12,008

Re: Olympus Mons as lift off or an observation site?

For Mars_B4_Moon re new topic ...

SearchTerm:Observatory on Olympus Mons
SearchTerm:Astronomy from Olympus Mons

This idea might easily win funding for the Mars adventure, if presented to the right people.

Afterthought ... it occurs to me that the combination of rocket launch facility (a) and (b) astronomical facility location is unusual.

Perhaps Mars settlers might prefer one or the other.  Or perhaps launches could be scheduled for daylight?

Telescopes seem (to me at least) to be (generally) on the delicate side. 

(th)

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#3 2021-12-26 20:44:56

Calliban
Member
From: Northern England, UK
Registered: 2019-08-18
Posts: 2,218

Re: Olympus Mons as lift off or an observation site?

A rocket sled running up one the Tharsis volcanoes could certainly provide launch assist.  In fact, we could run the sled in a tube that is filled with a mixture of oxygen and hydrogen gas at Mars ambient pressure.  As the vehicle accelerated in the tube, the gas would be compressed into a ram scoop and would ignite within the engine.  You could not do this as easily on Earth, because the hydrogen oxygen mixture would be flammable at 1bar.  But at 0.006 bar, it is too diffuse to ignite.

The Olmpus Mons telescope idea is a good one.  On Mars, we could presumably build enormous reflector telescopes and as you say, there is no one that would care to object.


"Plan and prepare for every possibility, and you will never act. It is nobler to have courage as we stumble into half the things we fear than to analyse every possible obstacle and begin nothing. Great things are achieved by embracing great dangers."

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#4 2021-12-26 20:54:50

SpaceNut
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From: New Hampshire
Registered: 2004-07-22
Posts: 26,753

Re: Olympus Mons as lift off or an observation site?

Yes but not starship masses which is what some will want. I would think that it would lend its self for long distance sub orbital transit flights.

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#5 2022-01-05 12:47:54

Mars_B4_Moon
Member
Registered: 2006-03-23
Posts: 4,782

Re: Olympus Mons as lift off or an observation site?

SpaceNut wrote:

Yes but not starship masses which is what some will want. I would think that it would lend its self for long distance sub orbital transit flights.

Some Moon enthusiasts and Mars did the math and point out lunar mass drivers are possible but also perhaps possible on Mars, maybe you would need good satellites monitoring everything

According to the Mars Fact Sheet the density of Mars surface atmosphere is .02kg/m3 and the scale height is 11.1 km. Since Olympus Mons is 22 km high, it seems to me the the density at the mountain top
would be e ^ −22/11.1∗.02kg/m3 where e is Euler's number, about 2.72. That gives a density of about .0028kg/m3

stackexchange.com/questions
. Mars orbital speed at 22 km altitude is about 3,540 m/s. Plugging these numbers into

q=.5∗ρ∗v2

I get a dynamic pressure is about 17,268 pascals, or about half of the shuttle's Max-Q.

So at this point I believe Mars' atmosphere wouldn't be a showstopper for an Olympus Mons railgun.

Maybe it could be a kind of rail gunned launch pad

tahanson43206 wrote:


Perhaps Mars settlers might prefer one or the other.  Or perhaps launches could be scheduled for daylight?


(th)

Yes I think that's a good idea you could also use one of the many other Mountains, I think Space Agency are taking the idea for putting telescopes on other planets serious, the Chinese Chang'e 3 lander has an ultraviolet telescope and a camera on the Moon, it Seemed to have been doing both Cosmological and Solar/Earth science

Here is a NASA article about the Need for a Telescope on the Lunar Surface
https://www.nasa.gov/directorates/space … Telescope/
the Moon acts as a physical shield that isolates a far-side lunar-surface telescope from radio interference from sources on the Earth's surface, the ionosphere, Earth-orbiting satellites, and the Sun's radio emission during the lunar night. We propose the design of a Lunar Crater Radio Telescope (LCRT) on the far side of the Moon. We propose to deploy a wire mesh using wall-climbing DuAxel robots in a 3-5 km diameter crater, with a suitable depth-to-diameter ratio, to form a parabolic reflector with a 1 km diameter. LCRT will be the largest filled-aperture radio telescope in the Solar System; larger than the former Arecibo telescope (300 m diameter, 3 cm - 1 m wavelength band, 0.3-10 GHz frequency band) and the Five-hundred-meter Aperture Spherical radio Telescope (FAST) (500 m diameter, 0.1-4.3 m wavelength band, 60-3000 MHz frequency band). LCRT’s science objective is to track the evolution of the neutral intergalactic medium before and during the formation of the first stars, which is consistent with priorities identified in the Astrophysics decadal survey.


Calliban wrote:

The Olmpus Mons telescope idea is a good one.  On Mars, we could presumably build enormous reflector telescopes and as you say, there is no one that would care to object.

Also the heights of Ascraeus Mons, Elysium Mons, Arsia Mons, Pavonis Mons all dwarf Mount Everest, even the small mountains of Mars Elevation reach giant elevations.
http://www.esa.int/esaMI/Mars_Express/S … LUG_0.html

https://planetarynames.wr.usgs.gov/Feature/1106

Last edited by Mars_B4_Moon (2022-01-05 12:48:14)

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