Posts tagged Space
Upsilon Andromadae
Constellation: Andromeda
Distance: 44.25 Lightyears
Absolute Magnitude: 3.44 VS 4.83 Sol
Apparent Magnitude: 4.09 VS -26 Sol
Spectral Class: F8V
Mass: 127% VS 100% Sol
Radius: 140% Sol VS 100% Sol
Luminosity: 52% Sol
Habitable Zone: Inner 0.52AU to Center 0.74 AU to Outer 1.15 AU
Temperature: 6,074 K vs 5,778 Sol
Rotation: 7 Days VS 25 Sol
Radial Velocity: -28 km/s, approaching earth
Galactic Eccentricity: 20.6% VS 16.0% for Sol
Closest Approach: Upsilon Andromedae will make its closest approach to the sun in 245,000 years at 30 light-years.
Age: 2.6 billion years VS Sol’s 4.5 Gy
Projected Lifespan: 6.5 billion years, 40% of lifetime used VS 45% for sun
Known Planets:
Upsilon Andromedae b:
Distance: 0.05 AU
Mass: 0.62 Jupiter
Orbital Period: 4.6 days
Upsilon Andromedae c:
Distance: 0.83 AU
Mass: 1.8 Jupiters
Orbital Period: 241 days
Upsilon Andromedae d:
Distance: 2.53 AU
Mass: 3.75 Jupiters
Orbital Period: 1276 Days
Upsilon Andromedae e:
Distance: 5.24 AU
Mass: 0.96 Jupiters
Orbital Period: 3848 Days
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After a decades long journey, this antimatter-catalyzed fusion rocket approaches its destination. Illuminated by the light of an alien sun, the ship begins to fall towards the inner region of the star’s planetary system, where an Earth-sized exoplanet orbits in the habitable zone.
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The recently revised planetary system of HD 40307 used to only be 6 lightyears away from our solar system 413,000 years ago, one of our nearest stars. The individual movements of stars in their orbit around our galaxy cause each star to drift toward and away from each other. Their set of neighbors is in constant change. So, the closest star system to us Alpha Centauri, is only so for a relativity brief amount of time. A hundred million years from now it may be on the other side of the galaxy.
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