Top Page Stargazing on MARS Your imaginary observatory location, 360 degrees unobstructed view, True dark sky. Environment on Mars Thin atmosphere, no industrial smog, no light pollution, Excellent seeing and transparency (in absence of sand storms, etc.).
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Your imaginary observatory location,
360 degrees unobstructed view,
True dark sky.
Parallax angles to Proxima Centauri:
on 1 AU base (Earth orbit): 0.773”
on 1.524AU base (Mars orbit): 1.178”
It’s only a small step to Mars, but no giant leap into space.
Therefore, the constellations appear like as seen from Earth.
Mars Rover Spirit’s image of Orion as viewed from 15 deg southern latitude on Mars.
RA: 09h10m43s, Dec: -52º53’09
RA: 21h10m43s, Dec: 52º53’09
Mars’s Polar Axis
Moon Orbits to-scale
Influence of latitude
Observing the Martian Moons
Apparent Angular Sizes
Image: Viking 2 Orbiter
Image: Viking Orbiter
Axial rotation of Mars: 1.026 days
27 x 22 x 18 km
rises in the west
15 x 12 x 11 km
*In the meridian on 45º latitude,
measured on longest axis.
Angular size variations:
Deimos: 1.8’ to 2.6’
Image: Phobos-2, Feb 28, 1989
Image: Viking 2, h=30km, 1.2km wide
Simulated view on Valles Marineris
Mars’ angular size: 42.5º
(85x the full Earth moon)
Simulated view on the Hellas region
Mars’ angular size: 16.7º
(33x the full Earth moon)
From Moon to Moon
Phobos: 8.2º E/W elongation
Deimos: 20º E/W elongation
Phobos eclipse shadow
Mars Global Surveyor. August 26, 1999 over
Western Xanthe Terra. 250km (155mi across)
Venus transit in 2004. Courtesy K. Spencer.
Mars Global Surveyor. May 8, 2003 13:00 UTC
Our Mars Observatory
Mars Rover Spirit
Spirit’s two panoramic CCD cameras.
Spirit’s field of view
Phobos Lunar Eclipse
South Celestial Pole Region