[HN Gopher] What does the night sky look like on Mars? ___________________________________________________________________ What does the night sky look like on Mars? Author : ohjeez Score : 41 points Date : 2021-01-26 21:13 UTC (1 hours ago) (HTM) web link (www.skyatnightmagazine.com) (TXT) w3m dump (www.skyatnightmagazine.com) | Teknoman117 wrote: | Ah, yes, amateur astronomy on Mars. Something we'll not be able | to do in my lifetime sadly. | njanirudh wrote: | I am expecting light pollution to follow us there also | formerly_proven wrote: | 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? | hbcondo714 wrote: | > You would see two moons in that sky instead of one | | Any pictures of this? | Medox wrote: | There are some videos (from pictures) of eclipses, which show | both: https://www.youtube.com/watch?v=M_Kn3M2ierk | | This one more zoomed out, but only with Phobos: | https://www.youtube.com/watch?v=ViiriVhIhjE | | Taking into account that the Sun itself is seen smaller than on | Earth, we can already imagine the view. The main problem would | be that "Phobos is one of the least reflective bodies in the | Solar System, with an albedo of just 0.071.". | nostromo wrote: | 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. | amelius wrote: | Also, it's more spherical than the moons of Mars. | giantrobot wrote: | > 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. | tandr wrote: | > Night-time temperatures can drop to -900C | | wait, what? | crazydoggers wrote: | That would be something... especially given that absolute zero, | the lowest temperature possible when matter ceases movement is | -273C. | | It's a funny typo. Always makes you wonder how much other stuff | they get wrong that's missed. | teilo wrote: | I believe that's supposed to be -90C. Clearly a typo. | noja wrote: | You'd expect better from Sky At Night. | | (Wikipedia says -143 degC, -225 degF) | midasuni wrote: | 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. | onethought wrote: | The star link complaint seems kind of like how people must | have been when telegram/power lines went up. | tppiotrowski wrote: | Such great highlights from Curiosity, Spirit and Opportunity | woven into an enjoyable narrative. I had missed the noctilucent | clouds and transit of Phobos. Now stoked for Perseverance on Feb | 18th. | Medox wrote: | I remember Starry Night having the option to see the night sky | from different planets. You know, in case you wanted to track the | stars with a telescope, on Mars. | headcanon wrote: | I can't say enough good things about Starry Night in terms of | teaching me about Astronomy and the Universe early on. Being | able to "go" to other star systems and see what the night sky | looks like was essential for intuiting our "place" in the sky | in a lot of ways, much like playing Kerbal solidified my | intuition around basic orbital mechanics. | slingnow wrote: | The answer should be: nearly exactly the same, with the exception | of being able to see Earth and not being able to see Mars. | zabzonk wrote: | "And I came to the land where the sun is a tarnished penny, where | the wind is a whip, where two moons play at hot rod games" | | Roger Zelazny, A Rose For Ecclesiastes | temp667 wrote: | 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. | Thaxll wrote: | I really wish we will be able to see some interesting Mars things | in our lifetime... | andi999 wrote: | Blue skies on Mars.. ___________________________________________________________________ (page generated 2021-01-26 23:00 UTC)