🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.57

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.5 AU - 0.72 AU

Year: 303 Days

Day: 36.8 Hours

Environment

Temp: -131 °C

Axial Tilt: 2.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 676.7

Radius: 14.2

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.58 AU - 0.88 AU

Year: 397 Days

Day: 10.6 Hours

Environment

Temp: -137 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 48,939,653 km

• M1: 176,525 km (0.113 R)
• M2: 647,011 km (0.08 R)
• M3: 1,252,733 km (0.106 R)
• M4: 1,807,741 km (0.087 R)
• M5: 2,250,401 km (0.111 R)
• M6: 2,867,043 km (0.107 R)
• M7: 3,442,696 km (0.047 R)
• M8: 4,042,882 km (0.118 R)
• M9: 4,726,994 km (0.112 R)
• M10: 5,189,101 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 81.7

Radius: 10.2

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.49 AU - 1.69 AU

Year: 1275 Days

Day: 8.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 48,939,653 km

• M1: 126,859 km (0.088 R)
• M2: 458,069 km (0.069 R)
• M3: 875,746 km (0.095 R)
• M4: 1,322,146 km (0.066 R)
• M5: 1,909,916 km (0.114 R)
• M6: 2,264,912 km (0.114 R)
• M7: 3,834,493 km (0.054 R)
• M8: 4,726,395 km (0.053 R)
• M9: 5,768,195 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 108.2

Radius: 13.1

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 2 AU - 2.5 AU

Year: 2146 Days

Day: 6.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 48,939,653 km

• M1: 163,062 km (0.053 R)
• M2: 999,912 km (0.119 R)
• M3: 1,791,135 km (0.099 R)
• M4: 2,254,440 km (0.103 R)
• M5: 4,476,267 km (0.119 R)
• M6: 8,593,799 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 249.1

Radius: 9.1

Gravity: 3.01 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 2.24 AU - 2.36 AU

Year: 2218 Days

Day: 7 Hours

Environment

Temp: -194 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 48,939,653 km

• M1: 113,545 km (0.026 R)
• M2: 448,644 km (0.115 R)
• M3: 768,185 km (0.062 R)
• M4: 1,060,051 km (0.073 R)
• M5: 1,378,395 km (0.096 R)
• M6: 1,900,491 km (0.069 R)
• M7: 2,664,488 km (0.094 R)
• M8: 3,219,346 km (0.109 R)
• M9: 3,540,383 km (0.104 R)
• M10: 3,933,676 km (0.087 R)
• M11: 4,596,993 km (0.076 R)
• M12: 4,985,499 km (0.036 R)
• M13: 5,502,060 km (0.078 R)
• M14: 5,828,782 km (0.042 R)
• M15: 6,284,607 km (0.113 R)
• M16: 6,641,846 km (0.096 R)
• M17: 7,012,699 km (0.057 R)
• M18: 7,581,620 km (0.033 R)
• M19: 8,321,531 km (0.117 R)
• M20: 9,259,959 km (0.117 R)
• M21: 9,629,465 km (0.078 R)
• M22: 10,202,276 km (0.105 R)
• M23: 10,563,255 km (0.114 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 308.9

Radius: 7.2

Gravity: 5.96 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 5.63 AU - 8.61 AU

Year: 12080 Days

Day: 24.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 48,939,653 km

• M1: 89,609 km (0.116 R)
• M2: 458,517 km (0.116 R)
• M3: 795,711 km (0.094 R)
• M4: 1,201,570 km (0.089 R)
• M5: 1,465,610 km (0.063 R)
• M6: 1,935,048 km (0.104 R)
• M7: 2,445,177 km (0.074 R)
• M8: 3,805,171 km (0.079 R)
• M9: 4,245,438 km (0.097 R)
• M10: 4,604,622 km (0.038 R)
• M11: 6,353,422 km (0.099 R)
• M12: 8,164,603 km (0.114 R)
• M13: 8,852,753 km (0.084 R)
• M14: 9,578,901 km (0.093 R)
• M15: 10,541,564 km (0.049 R)
• M16: 10,842,554 km (0.097 R)
• M17: 11,356,872 km (0.037 R)
• M18: 13,461,116 km (0.082 R)
• M19: 15,168,775 km (0.117 R)
• M20: 15,488,316 km (0.11 R)
• M21: 18,934,453 km (0.075 R)
• M22: 19,831,741 km (0.097 R)
• M23: 23,364,644 km (0.113 R)
• M24: 25,190,037 km (0.047 R)
• M25: 26,183,068 km (0.044 R)
• M26: 26,735,533 km (0.099 R)
• M27: 27,484,420 km (0.068 R)
• M28: 28,439,902 km (0.08 R)
• M29: 28,828,258 km (0.107 R)
• M30: 31,750,502 km (0.067 R)
• M31: 39,726,163 km (0.041 R)
• M32: 40,578,123 km (0.107 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 434.4

Radius: 3.9

Gravity: 28.56 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 7.03 AU - 7.89 AU

Year: 12955 Days

Day: 16.8 Hours

Environment

Temp: -215 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 48,939,653 km

• M1: 48,470 km (0.111 R)
• M2: 272,119 km (0.11 R)
• M3: 451,486 km (0.088 R)
• M4: 849,716 km (0.113 R)
• M5: 989,590 km (0.113 R)
• M6: 1,240,914 km (0.115 R)
• M7: 2,021,366 km (0.109 R)
• M8: 3,154,122 km (0.088 R)
• M9: 3,467,679 km (0.091 R)
• M10: 4,156,726 km (0.032 R)
• M11: 4,563,333 km (0.117 R)
• M12: 5,189,550 km (0.084 R)
• M13: 8,726,941 km (0.093 R)
• M14: 10,243,714 km (0.067 R)
• M15: 11,037,032 km (0.099 R)
• M16: 14,361,695 km (0.057 R)
• M17: 14,621,845 km (0.104 R)
• M18: 15,901,057 km (0.036 R)
• M19: 16,109,746 km (0.078 R)
• M20: 19,461,486 km (0.052 R)
• M21: 20,183,446 km (0.1 R)
• M22: 20,509,868 km (0.073 R)
• M23: 22,282,004 km (0.09 R)
• M24: 23,971,114 km (0.113 R)
• M25: 24,245,327 km (0.036 R)
• M26: 25,648,256 km (0.086 R)
• M27: 27,902,845 km (0.104 R)
• M28: 28,614,482 km (0.065 R)
• M29: 29,026,475 km (0.106 R)
• M30: 31,145,977 km (0.105 R)
• M31: 32,132,575 km (0.113 R)
• M32: 37,134,979 km (0.063 R)
• M33: 37,625,061 km (0.096 R)
• M34: 44,532,294 km (0.111 R)
• M35: 45,224,483 km (0.086 R)
• M36: 47,775,576 km (0.1 R)
• M37: 47,920,088 km (0.112 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 516 - 12,467 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit