Revision for Eden in Oephaird | ||
Previous Revision, by PhoenixBlue [2024-11-23 18:39:43] | → | Selected revision, by PhoenixBlue [2024-11-23 18:39:44] |
DISCOVERER | ||
Taino Marley | → | Taino Marley |
NAME | ||
Oephaird Planetary Nebula | → | Eden in Oephaird |
SYSTEMNAME | ||
Oephaird CF-A e7699 | → | Oephaird CF-A e7699 |
CATEGORY | ||
Stellar Features | → | Stellar Features |
CATEGORY 2 | ||
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REGION | ||
Norma Arm | → | Norma Arm |
LATITUDE | ||
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LONGITUDE | ||
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CALLSIGN | ||
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SUMMARY | ||
A planetary nebula about 9,000 light-years from Sagittarius A* is home to a neutron star and an Earth-like world. | → | A planetary nebula about 9,000 light-years from Sagittarius A* is home to a neutron star and an Earth-like world. |
DESCRIPTION | ||
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A planetary nebula about 9,000 light-years from Sagittarius A* is home to a bright red and green colors and, surprisingly, an Earth-like world about 2,500 light-seconds from the supernova remnant at the center of the system. The remnant is a 2.2-solar-mass neutron star with an age of about 280 million years. Three planets orbit the star, only one of which is what a visitor might expect: a scorched world with a surface temperature of about 1,600°C and a crushing atmosphere of silicate vapour. Orbiting this low-albedo world is a pristine Earth-like world with a thin atmosphere and 0.63-Earth-normal gravity. The average surface temperature on this anomalous world is a relatively balmy 5°C. What might lead to the development of an Earth-like climate only a few hundred million years after the violent death of its parent star is a mystery with few explanations. Hypotheses range from a panspermic spread of terraforming bacteria to the use of highly advanced, alien technology, but insufficient evidence exists to form a definitive conclusion. The final world in the system is a water world with a thick atmosphere and gravity about three times Earth-normal. There are no landable worlds in the nebula itself. However, the galactic neighborhood is densely populated, and the nebula dominates the view from nearby Oephaird CF-A e8085, where travelers can find roseum bioluminescent anemonae growing on the ringed Body 6. | → | A planetary nebula about 9,000 light-years from Sagittarius A* is home to a bright red and green colors and, surprisingly, an Earth-like world about 2,500 light-seconds from the supernova remnant at the center of the system. The remnant is a 2.2-solar-mass neutron star with an age of about 280 million years. Three planets orbit the star, only one of which is what a visitor might expect: a scorched world with a surface temperature of about 1,600°C and a crushing atmosphere of silicate vapour. Orbiting this low-albedo world is a pristine Earth-like world with a thin atmosphere and 0.63-Earth-normal gravity. The average surface temperature on this anomalous world is a relatively balmy 5°C. What might lead to the development of an Earth-like climate only a few hundred million years after the violent death of its parent star is a mystery with few explanations. Hypotheses range from a panspermic spread of terraforming bacteria to the use of highly advanced, alien technology, but insufficient evidence exists to form a definitive conclusion. The final world in the system is a water world with a thick atmosphere and gravity about three times Earth-normal. There are no landable worlds in the nebula itself. However, the galactic neighborhood is densely populated, and the nebula dominates the view from nearby Oephaird CF-A e8085, where travelers can find roseum bioluminescent anemonae growing on the ringed Body 6. |
JOURNAL | ||
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OBSERVATORY | ||
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