COMPARATIVE CHARACTERISTICS OF CELESTIAL OBJECTS
– SOLAR SYSTEM // ALDERAMIN SYSTEM –
ALDERAMIN AND THE SUN
Alderamin is 49 light years from the Sun.
ALDERAMIN 5 AND ALDERAMIN 5B
The gas giant Alderamin 5 is twice as large as Jupiter. Its orbital period around Alderamin is about 2,337 days, compared to 4,332 days for Jupiter, which is farther from its star (the Sun).
Alderamin 5b is the second largest natural satellite of Alderamin 5.
Alderamin 5b is one of the 109 natural satellites of Alderamin 5 (the fifth planet in order of distance from its star). It is also the second-largest moon in the Alderamin system, after Alderamin 5a. Relatively spared from the deadliest collisions thanks to the irresistible gravitational pull of the gas giant it orbits [1], Alderamin 5b has been able to support life without experiencing any mass extinction events (as happened on Earth five times [2]).
[1] Alderamin 5 is twice as large as Jupiter.
[2] A sixth, the Holocene extinction, may have already begun.
Forests and vegetation, predominantly lunar white and blue, cover 92% of Alderamin 5b's surface. Saltwater bodies are rare, while freshwater rivers are numerous. The average surface temperature on Alderamin 5b is 16 °C, which is 1 °C warmer than on Earth. The atmosphere, extremely rich in oxygen [3] has fostered the development of an extraordinary variety of living organisms.
[3] 35% on Alderamin 5b compared to 21% on Earth.
THE MOON, THE EARTH, AND ALDERAMIN 5B
🌍 Earth/Alderamin 5b Comparison 🌕 :
Distance to the star: ≈ 150,000,000 km for Earth / ≈ 620,000,000 km for Alderamin 5b
Stellar revolution period : 365.25 days for Earth / 2336.65 days for Alderamin 5b*
Planetary revolution period (for Alderamin 5b) : 8.93 days
Earth 30% smaller: 6,371 km radius compared to 6,953 km for Alderamin 5b
Surface gravity: 9.81 m·s⁻² on Earth / 6.87 m·s⁻² on Alderamin 5b (lower density)
Rotation period of Alderamin 5b: 0.88 days (just over 21 hours)
Sea/land percentage: 70/30 for Earth versus 8/92 for Alderamin 5b
*Orbital period of Alderamin 5b (moon) around Alderamin (star).
Earth and Alderamin 5b are similar in size.
COMPARISON OF THE APPARENT DIAMETERS OF THE MOON AND THE SUN (SEEN FROM EARTH) AND ALDERAMIN AND ALDERAMIN 5 (SEEN FROM ALDERAMIN 5B)
From the surface of Alderamin 5b, Alderamin 5 appears as a gigantic star.