🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.15

Radius: 1.06

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.53 AU - 0.65 AU

Year: 297 Days

Day: 46.4 Hours

Environment

Temp: -120 °C

Axial Tilt: 9.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 723.7

Radius: 12

Gravity: 5.03 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.99 AU - 1.11 AU

Year: 706 Days

Day: 5.6 Hours

Environment

Temp: -151 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 76,713,198 km

• M1: 149,299 km (0.068 R)
• M2: 880,533 km (0.068 R)
• M3: 1,511,537 km (0.074 R)
• M4: 1,989,652 km (0.093 R)
• M5: 2,377,260 km (0.097 R)
• M6: 2,969,967 km (0.068 R)
• M7: 3,400,659 km (0.099 R)
• M8: 4,405,059 km (0.087 R)
• M9: 4,865,222 km (0.12 R)
• M10: 6,422,237 km (0.041 R)
• M11: 6,885,691 km (0.05 R)
• M12: 7,553,645 km (0.088 R)
• M13: 8,046,570 km (0.075 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 540.5

Radius: 12

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.01 AU - 1.23 AU

Year: 778 Days

Day: 6.9 Hours

Environment

Temp: -169 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 76,713,198 km

• M1: 149,299 km (0.067 R)
• M2: 540,647 km (0.063 R)
• M3: 955,781 km (0.034 R)
• M4: 1,361,939 km (0.111 R)
• M5: 1,800,710 km (0.117 R)
• M6: 2,385,039 km (0.068 R)
• M7: 2,854,178 km (0.106 R)
• M8: 3,517,196 km (0.066 R)
• M9: 3,980,351 km (0.069 R)
• M10: 5,620,392 km (0.045 R)
• M11: 6,117,356 km (0.104 R)
• M12: 6,769,453 km (0.101 R)
• M13: 7,288,408 km (0.046 R)
• M14: 7,787,467 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 14.7

Radius: 9.4

Gravity: 0.17 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 3.94 AU - 5.06 AU

Year: 6262 Days

Day: 9.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 76,713,198 km

• M1: 118,482 km (0.108 R)
• M2: 412,292 km (0.045 R)
• M3: 2,401,644 km (0.069 R)
• M4: 4,279,097 km (0.094 R)
• M5: 4,653,092 km (0.078 R)
• M6: 9,266,840 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 960.6

Radius: 11.7

Gravity: 7.02 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 4.34 AU - 6.14 AU

Year: 7869 Days

Day: 9.7 Hours

Environment

Temp: -209 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 76,713,198 km

• M1: 145,708 km (0.097 R)
• M2: 579,841 km (0.097 R)
• M3: 1,013,077 km (0.109 R)
• M4: 1,451,548 km (0.093 R)
• M5: 2,202,081 km (0.079 R)
• M6: 2,912,371 km (0.109 R)
• M7: 3,644,653 km (0.078 R)
• M8: 8,367,009 km (0.062 R)
• M9: 10,696,846 km (0.053 R)
• M10: 12,663,759 km (0.088 R)
• M11: 13,250,482 km (0.069 R)
• M12: 17,159,325 km (0.101 R)
• M13: 19,919,405 km (0.094 R)
• M14: 26,398,190 km (0.085 R)
• M15: 28,139,210 km (0.082 R)
• M16: 30,473,685 km (0.12 R)
• M17: 33,597,587 km (0.077 R)
• M18: 36,574,585 km (0.113 R)
• M19: 39,972,551 km (0.097 R)
• M20: 41,747,979 km (0.07 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 419.6

Radius: 7

Gravity: 8.56 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 4.84 AU - 7.44 AU

Year: 9981 Days

Day: 24.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 76,713,198 km

• M1: 87,066 km (0.099 R)
• M2: 441,763 km (0.1 R)
• M3: 1,319,154 km (0.085 R)
• M4: 1,856,360 km (0.104 R)
• M5: 2,822,164 km (0.081 R)
• M6: 3,201,394 km (0.082 R)
• M7: 3,858,279 km (0.103 R)
• M8: 4,517,856 km (0.12 R)
• M9: 4,744,048 km (0.072 R)
• M10: 5,628,321 km (0.114 R)
• M11: 5,890,715 km (0.099 R)
• M12: 6,618,210 km (0.051 R)
• M13: 7,022,423 km (0.088 R)
• M14: 7,639,664 km (0.113 R)
• M15: 9,160,177 km (0.097 R)
• M16: 11,383,201 km (0.113 R)
• M17: 12,453,275 km (0.101 R)
• M18: 13,356,397 km (0.102 R)
• M19: 16,327,411 km (0.098 R)
• M20: 18,107,476 km (0.065 R)
• M21: 22,949,959 km (0.079 R)
• M22: 23,536,233 km (0.1 R)
• M23: 24,825,916 km (0.111 R)
• M24: 25,266,033 km (0.114 R)
• M25: 29,269,123 km (0.117 R)
• M26: 31,471,951 km (0.034 R)
• M27: 34,869,768 km (0.069 R)
• M28: 35,200,229 km (0.078 R)
• M29: 35,979,784 km (0.116 R)
• M30: 39,929,916 km (0.035 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 874.5

Radius: 6.4

Gravity: 21.35 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 8.15 AU - 9.99 AU

Year: 17919 Days

Day: 20.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 76,713,198 km

• M1: 79,586 km (0.108 R)
• M2: 322,982 km (0.047 R)
• M3: 906,713 km (0.113 R)
• M4: 1,179,130 km (0.119 R)
• M5: 1,380,489 km (0.116 R)
• M6: 1,656,048 km (0.039 R)
• M7: 1,872,367 km (0.096 R)
• M8: 2,590,736 km (0.071 R)
• M9: 3,199,150 km (0.12 R)
• M10: 6,130,072 km (0.113 R)
• M11: 7,884,556 km (0.114 R)
• M12: 10,547,099 km (0.063 R)
• M13: 12,622,021 km (0.095 R)
• M14: 15,109,235 km (0.093 R)
• M15: 16,385,455 km (0.099 R)
• M16: 17,905,220 km (0.115 R)
• M17: 18,699,285 km (0.049 R)
• M18: 22,615,907 km (0.092 R)
• M19: 22,922,283 km (0.093 R)
• M20: 25,364,020 km (0.077 R)
• M21: 27,276,479 km (0.083 R)
• M22: 27,973,755 km (0.076 R)
• M23: 28,208,922 km (0.051 R)
• M24: 30,014,120 km (0.103 R)
• M25: 33,852,801 km (0.11 R)
• M26: 40,805,811 km (0.084 R)
• M27: 42,024,435 km (0.08 R)
• M28: 43,897,700 km (0.088 R)
• M29: 45,338,627 km (0.087 R)
• M30: 51,242,357 km (0.088 R)
• M31: 52,125,433 km (0.108 R)
• M32: 56,693,703 km (0.06 R)
• M33: 57,259,183 km (0.103 R)
• M34: 61,521,676 km (0.057 R)
• M35: 62,118,870 km (0.108 R)
• M36: 62,318,883 km (0.117 R)
• M37: 64,137,394 km (0.112 R)
• M38: 72,427,510 km (0.112 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 267 - 13,585 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit