🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.8

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.47 AU - 0.69 AU

Year: 285 Days

Day: 47.3 Hours

Environment

Temp: -117 °C

Axial Tilt: 2.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 39,338,123 km

• M1: 330,611 km (0.09 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.7

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.62 AU - 0.68 AU

Year: 338 Days

Day: 38.4 Hours

Environment

Temp: -127 °C

Axial Tilt: 17.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298.8

Radius: 8.8

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.65 AU - 0.81 AU

Year: 403 Days

Day: 7.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 39,338,123 km

• M1: 109,506 km (0.09 R)
• M2: 385,963 km (0.113 R)
• M3: 736,022 km (0.086 R)
• M4: 1,049,429 km (0.095 R)
• M5: 1,327,831 km (0.099 R)
• M6: 1,611,468 km (0.064 R)
• M7: 1,950,756 km (0.117 R)
• M8: 2,370,528 km (0.027 R)
• M9: 2,701,438 km (0.119 R)
• M10: 3,489,370 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 518.6

Radius: 9.6

Gravity: 5.63 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 2.6 AU - 3.3 AU

Year: 3272 Days

Day: 6.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 39,338,123 km

• M1: 119,379 km (0.049 R)
• M2: 419,024 km (0.097 R)
• M3: 776,263 km (0.11 R)
• M4: 1,361,640 km (0.081 R)
• M5: 1,876,107 km (0.071 R)
• M6: 2,501,276 km (0.067 R)
• M7: 3,035,790 km (0.119 R)
• M8: 4,419,719 km (0.094 R)
• M9: 5,058,054 km (0.057 R)
• M10: 5,730,646 km (0.095 R)
• M11: 6,184,077 km (0.119 R)
• M12: 6,490,004 km (0.101 R)
• M13: 7,132,378 km (0.114 R)
• M14: 7,689,031 km (0.045 R)
• M15: 9,065,332 km (0.1 R)
• M16: 9,461,018 km (0.047 R)
• M17: 10,599,009 km (0.082 R)
• M18: 11,489,864 km (0.104 R)
• M19: 12,694,875 km (0.049 R)
• M20: 14,903,987 km (0.095 R)
• M21: 15,917,363 km (0.12 R)
• M22: 19,116,065 km (0.059 R)
• M23: 20,679,961 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.9

Radius: 11.1

Gravity: 5.27 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 2.91 AU - 3.31 AU

Year: 3541 Days

Day: 6 Hours

Environment

Temp: -209 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 39,338,123 km

• M1: 145,409 km (0.059 R)
• M2: 512,971 km (0.111 R)
• M3: 884,273 km (0.111 R)
• M4: 1,403,228 km (0.099 R)
• M5: 2,079,560 km (0.115 R)
• M6: 2,712,509 km (0.102 R)
• M7: 3,605,757 km (0.096 R)
• M8: 3,971,973 km (0.12 R)
• M9: 4,340,582 km (0.114 R)
• M10: 5,325,385 km (0.057 R)
• M11: 5,802,303 km (0.09 R)
• M12: 6,541,466 km (0.086 R)
• M13: 7,934,222 km (0.1 R)
• M14: 9,553,769 km (0.1 R)
• M15: 9,981,020 km (0.094 R)
• M16: 12,357,981 km (0.119 R)
• M17: 14,022,257 km (0.052 R)
• M18: 17,328,969 km (0.076 R)
• M19: 18,498,076 km (0.108 R)
• M20: 23,563,161 km (0.05 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 910.2

Radius: 14.5

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 5.62 AU - 6.16 AU

Year: 9230 Days

Day: 7.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 39,338,123 km

• M1: 180,265 km (0.077 R)
• M2: 801,845 km (0.107 R)
• M3: 1,677,591 km (0.069 R)
• M4: 2,296,178 km (0.077 R)
• M5: 3,020,830 km (0.083 R)
• M6: 4,001,294 km (0.106 R)
• M7: 5,249,688 km (0.093 R)
• M8: 6,860,858 km (0.116 R)
• M9: 7,931,230 km (0.104 R)
• M10: 8,735,468 km (0.071 R)
• M11: 10,094,116 km (0.05 R)
• M12: 10,612,174 km (0.116 R)
• M13: 11,148,033 km (0.111 R)
• M14: 12,158,118 km (0.092 R)
• M15: 12,685,600 km (0.091 R)
• M16: 19,305,605 km (0.115 R)
• M17: 19,943,939 km (0.088 R)
• M18: 20,844,668 km (0.107 R)
• M19: 25,473,974 km (0.117 R)
• M20: 28,950,180 km (0.083 R)
• M21: 31,729,110 km (0.102 R)
• M22: 32,956,710 km (0.105 R)
• M23: 34,915,844 km (0.1 R)
• M24: 35,625,536 km (0.11 R)
• M25: 40,605,200 km (0.08 R)
• M26: 44,631,478 km (0.113 R)
• M27: 46,456,123 km (0.041 R)
• M28: 47,603,389 km (0.094 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 235.4

Radius: 3

Gravity: 26.16 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 6.53 AU - 8.03 AU

Year: 12683 Days

Day: 22 Hours

Environment

Temp: -232 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 39,338,123 km

• M1: 37,848 km (0.082 R)
• M2: 149,897 km (0.12 R)
• M3: 262,694 km (0.104 R)
• M4: 366,066 km (0.082 R)
• M5: 461,509 km (0.086 R)
• M6: 636,838 km (0.096 R)
• M7: 976,126 km (0.074 R)
• M8: 1,230,891 km (0.068 R)
• M9: 1,855,762 km (0.101 R)
• M10: 2,027,949 km (0.117 R)
• M11: 2,126,384 km (0.089 R)
• M12: 3,431,027 km (0.069 R)
• M13: 4,065,771 km (0.105 R)
• M14: 4,249,178 km (0.078 R)
• M15: 4,604,622 km (0.099 R)
• M16: 5,436,835 km (0.032 R)
• M17: 6,021,763 km (0.076 R)
• M18: 7,508,766 km (0.118 R)
• M19: 7,905,350 km (0.089 R)
• M20: 9,724,610 km (0.074 R)
• M21: 15,706,131 km (0.12 R)
• M22: 20,846,164 km (0.077 R)
• M23: 21,785,938 km (0.112 R)
• M24: 22,917,496 km (0.041 R)
• M25: 26,456,084 km (0.095 R)
• M26: 27,094,568 km (0.115 R)
• M27: 31,547,349 km (0.038 R)
• M28: 31,853,575 km (0.091 R)
• M29: 32,784,224 km (0.054 R)
• M30: 33,732,824 km (0.092 R)
• M31: 35,244,660 km (0.081 R)
• M32: 36,351,684 km (0.094 R)
• M33: 37,710,482 km (0.102 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 233 - 20,016 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit