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What does the night sky look like on Mars?

skyatnightmagazine.com

21–30 of 84 posts

Re: What does the night sky look like on Mars?

#21

Ah, yes, amateur astronomy on Mars. Something we'll not be able to do in my lifetime sadly.

I am expecting light pollution to follow us there also

As I understand it, habitats would need to be under some ground, and there really isn't much to do outside. So what'd be the point of lighting the surface up?

Re: What does the night sky look like on Mars?

#22
Is this serious - crawling with starlink sats? At night I'm really not noticing starlink sats even on earth. What I'm noticing is MASSSIVE light pollution.

For an article about looking up with the human eye at the stars, the hit on starlink sats is so weird.

Starlink is probably going to be what makes internet initially possible on marks, may even be part of the mars - earth backhaul network, probably spacex will be helping host space based observation platforms (no dust / no atmo). etc.

Re: What does the night sky look like on Mars?

#23
post #4

Earlier quoted context omitted.

You'd expect better from Sky At Night. (Wikipedia says -143 °C, -225 °F)

The attack on spacex at the start - the one company that’s actually likely to put sky at night readers on Mars - took me out of it before the 900C hilarity.

The star link complaint seems kind of like how people must have been when telegram/power lines went up.

Re: What does the night sky look like on Mars?

#25

Earlier quoted context omitted.

This makes me appreciate our moon. How lucky we are to have a moon that is roughly the same size in the sky as the sun is -- aligned such that we occasionally get to see a perfect solar eclipse and the sun's corona with our naked eyes.

> aligned such that we occasionally get to see a perfect solar eclipse and the sun's corona with our naked eyes. Uh...don't do that. It'll end up being the last thing you see.

A total eclipse is perfectly safe to view with the naked eye. You just have to be carful you don't start too early or end too late...

Many references, but e.g., https://eclipse2017.nasa.gov/safety "Looking directly at the sun is unsafe except during the brief total phase of a solar eclipse (“totality”)..."

Re: What does the night sky look like on Mars?

#26

Ah, yes, amateur astronomy on Mars. Something we'll not be able to do in my lifetime sadly.

I am expecting light pollution to follow us there also

Isn't light pollution due to bouncing off the atmosphere's content?

Ipso facto, no atmo => no light pollution looking up a circled lens?

Re: What does the night sky look like on Mars?

#27
post #19

Earlier quoted context omitted.

This makes me appreciate our moon. How lucky we are to have a moon that is roughly the same size in the sky as the sun is -- aligned such that we occasionally get to see a perfect solar eclipse and the sun's corona with our naked eyes.

Also, it's more spherical than the moons of Mars.

Mars’ moons are more like asteroids though

Re: What does the night sky look like on Mars?

#28

Ah, yes, amateur astronomy on Mars. Something we'll not be able to do in my lifetime sadly.

I am expecting light pollution to follow us there also

Well, if you don't have a bunch of pedestrians wandering around outside and people don't generally drive to the store in single-occupant vehicles, you don't really have much need for streetlamps either.

Maybe at some point when the population gets large enough that you'd have imported problems from Earth like random people stealing the Martian equivalent of a CD player and catalytic converter off your rover in the middle of the night, then security lighting may be a thing.

The main use I can think of for outside lighting in the short term would be people doing construction work at night. That might actually be preferred from a radiation point of view; I know Mars doesn't have much protection from radiation, but I'm not sure how much comes directly from the sun versus random ambient radiation in space.

Another possible source of light pollution would be greenhouses with big windows that are lit with artificial light at night.

Re: What does the night sky look like on Mars?

#29
post #26

Earlier quoted context omitted.

I am expecting light pollution to follow us there also

Isn't light pollution due to bouncing off the atmosphere's content? Ipso facto, no atmo => no light pollution looking up a circled lens?

The article mentions dust in the atmosphere being a problem.
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