HR 753 A | |||||||||||
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Stellar charactersistics | |||||||||||
Stellar mass | 0.81 solar masses | ||||||||||
Stellar luminosity | 0.21 | ||||||||||
Age | 5.820 billion years (32.752 billion left on main sequence) | ||||||||||
Habitable ecosphere radius | 0.458 AU |
Planetary Overview | |||||
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# | Type | Dist. | Mass | Radius | |
1 | Rock | 0.287 AU | 0.067 EM | 0.410 ER | |
2 | Ice | 0.514 AU | 0.482 EM | 0.788 ER | |
3 | Ice | 1.055 AU | 1.948 EM | 1.241 ER |
Planet #1 Statistics | |||||||
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Planet type | Rock Tidally Locked 1 Face Low-G, Hot, Airless, 1-Face | ||||||
Distance from primary star | 4.3E+07 KM | 0.287 AU | |||||
Mass | 4E+23Kg | 0.067 Earth masses | |||||
Surface gravity | 390.4 cm/sec2 | 0.40 Earth gees | |||||
Surface pressure | 0 millibars | 0.000 Earth atmospheres | |||||
Surface temperature | 66.0° Celcius 150.8° Fahrenheit | +52.0° C Earth temperature +93.6° F Earth temperature +1.4° C greenhouse effect | |||||
Normal temperature range |
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Equatorial radius | 2615.9 Km | 0.41 Earth radii | |||||
Density | 5.34 grams/cc | 0.97 Earth densities | |||||
Eccentricity of orbit | 0.010 | ||||||
Escape Velocity | 4.5 Km/sec | ||||||
Molecular weight retained | 99.2 and above | Xe | |||||
Axial tilt | 18° | ||||||
Planetary albedo | 0.07 | ||||||
Exospheric Temperature | 3245.95° K | +1972.95° C Earth temperature | |||||
Length of year | 62.39 Earth days | 1.00 Local days | |||||
Length of day | 1497.43 hours | ||||||
Boiling point of water | -273.1° Celcius -459.7° Fahrenheit | ||||||
Hydrosphere percentage | 0.0 | ||||||
Cloud cover percentage | 0.0 | ||||||
Ice cover percentage | 0.0 |
Planet #2 Statistics | |||||||||||||
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Planet type | Ice Resonant Spin Locked Low-G, Cold, Icy, Arid, Cloudless, Thin atmosphere (N2 - unbreathable), 1-Face | ||||||||||||
Distance from primary star | 7.7E+07 KM | 0.514 AU | |||||||||||
Mass | 2.9E+24Kg | 0.482 Earth masses | |||||||||||
Surface gravity | 761.9 cm/sec2 | 0.78 Earth gees | |||||||||||
Surface pressure | 291 millibars | 0.287 Earth atmospheres | |||||||||||
Surface temperature | -64.6° Celcius -84.3° Fahrenheit | -78.6° C Earth temperature -141.5° F Earth temperature | |||||||||||
Normal temperature range |
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Equatorial radius | 5024.8 Km | 0.79 Earth radii | |||||||||||
Density | 5.43 grams/cc | 0.98 Earth densities | |||||||||||
Eccentricity of orbit | 0.162 | ||||||||||||
Escape Velocity | 8.8 Km/sec | ||||||||||||
Molecular weight retained | 8.2 and above | N, O, CH4, NH3, H2O, Ne, N2, CO...
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Axial tilt | 28° | ||||||||||||
Planetary albedo | 0.70 | ||||||||||||
Exospheric Temperature | 1011.22° K | -261.78° C Earth temperature | |||||||||||
Length of year | 149.63 Earth days | 1.39 Local days | |||||||||||
Length of day | 2590.21 hours | ||||||||||||
Boiling point of water | 68.7° Celcius 155.6° Fahrenheit | ||||||||||||
Hydrosphere percentage | 0.0 | ||||||||||||
Cloud cover percentage | 0.5 | ||||||||||||
Ice cover percentage | 99.3 |
Planet #3 Statistics | |||||||||||||
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Planet type | Ice High-G, Cold, Icy, Arid, Cloudless, Thick atmosphere | ||||||||||||
Distance from primary star | 1.6E+08 KM | 1.055 AU | |||||||||||
Mass | 1.2E+25Kg | 1.948 Earth masses | |||||||||||
Surface gravity | 1240.1 cm/sec2 | 1.26 Earth gees | |||||||||||
Surface pressure | 4744 millibars | 4.682 Earth atmospheres | |||||||||||
Surface temperature | -103.3° Celcius -154.0° Fahrenheit | -117.3° C Earth temperature -211.2° F Earth temperature | |||||||||||
Normal temperature range |
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Equatorial radius | 7914.2 Km | 1.2 Earth radii | |||||||||||
Density | 5.61 grams/cc | 1 Earth densities | |||||||||||
Eccentricity of orbit | 0.099 | ||||||||||||
Escape Velocity | 14.0 Km/sec | ||||||||||||
Molecular weight retained | 0.8 and above | H, H2, He, N, O, CH4, NH3, H2O... | |||||||||||
Axial tilt | 29° | ||||||||||||
Planetary albedo | 0.70 | ||||||||||||
Exospheric Temperature | 240.26° K | -1032.74° C Earth temperature | |||||||||||
Length of year | 439.67 Earth days | 761.24 Local days 1.20 Earth years | |||||||||||
Length of day | 13.86 hours | ||||||||||||
Boiling point of water | 148.3° Celcius 299.0° Fahrenheit | ||||||||||||
Hydrosphere percentage | 0.0 | ||||||||||||
Cloud cover percentage | 0.2 | ||||||||||||
Ice cover percentage | 100.0 |