🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 846.7

Radius: 13.6

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.64 AU - 0.78 AU

Year: 421 Days

Day: 7.6 Hours

Environment

Temp: -153 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 63,181,564 km

• M1: 169,195 km (0.12 R)
• M2: 617,540 km (0.118 R)
• M3: 1,254,827 km (0.049 R)
• M4: 1,823,448 km (0.079 R)
• M5: 2,513,693 km (0.082 R)
• M6: 3,040,876 km (0.087 R)
• M7: 3,469,324 km (0.032 R)
• M8: 4,449,789 km (0.096 R)
• M9: 4,927,754 km (0.116 R)
• M10: 5,506,548 km (0.083 R)
• M11: 6,166,424 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 90.5

Radius: 8.1

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.76 AU - 0.94 AU

Year: 551 Days

Day: 13.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 47.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 63,181,564 km

• M1: 107,112 km (0.093 R)
• M2: 466,446 km (0.096 R)
• M3: 1,096,852 km (0.058 R)
• M4: 1,377,048 km (0.113 R)
• M5: 1,662,182 km (0.098 R)
• M6: 2,480,781 km (0.028 R)
• M7: 3,026,066 km (0.077 R)
• M8: 3,342,316 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 206.5

Radius: 8.2

Gravity: 3.07 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.86 AU - 1.02 AU

Year: 641 Days

Day: 8 Hours

Environment

Temp: -177 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 63,181,564 km

• M1: 102,026 km (0.078 R)
• M2: 713,731 km (0.075 R)
• M3: 973,583 km (0.109 R)
• M4: 1,235,529 km (0.067 R)
• M5: 1,876,855 km (0.091 R)
• M6: 2,934,063 km (0.051 R)
• M7: 3,332,442 km (0.115 R)
• M8: 3,754,458 km (0.037 R)
• M9: 4,834,554 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 951.7

Radius: 14.1

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.04 AU - 1.18 AU

Year: 822 Days

Day: 5.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 63,181,564 km

• M1: 175,329 km (0.084 R)
• M2: 623,674 km (0.106 R)
• M3: 1,281,156 km (0.073 R)
• M4: 1,967,511 km (0.111 R)
• M5: 3,006,169 km (0.105 R)
• M6: 4,040,788 km (0.116 R)
• M7: 4,982,058 km (0.065 R)
• M8: 6,085,791 km (0.099 R)
• M9: 6,539,671 km (0.058 R)
• M10: 7,564,865 km (0.067 R)
• M11: 8,245,535 km (0.038 R)
• M12: 9,527,589 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 500.5

Radius: 9

Gravity: 6.18 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.28 AU - 2 AU

Year: 1476 Days

Day: 12.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 63,181,564 km

• M1: 111,899 km (0.117 R)
• M2: 424,858 km (0.115 R)
• M3: 717,023 km (0.09 R)
• M4: 1,193,342 km (0.077 R)
• M5: 1,534,874 km (0.038 R)
• M6: 2,395,062 km (0.097 R)
• M7: 3,593,790 km (0.107 R)
• M8: 4,071,007 km (0.039 R)
• M9: 4,552,712 km (0.113 R)
• M10: 5,315,212 km (0.039 R)
• M11: 6,183,179 km (0.084 R)
• M12: 6,508,405 km (0.034 R)
• M13: 7,579,376 km (0.089 R)
• M14: 8,170,737 km (0.082 R)
• M15: 9,445,610 km (0.066 R)
• M16: 9,784,000 km (0.057 R)
• M17: 10,130,469 km (0.117 R)
• M18: 10,781,519 km (0.107 R)
• M19: 11,287,907 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 805

Radius: 10.7

Gravity: 7.03 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.78 AU - 1.84 AU

Year: 1712 Days

Day: 11.9 Hours

Environment

Temp: -199 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 63,181,564 km

• M1: 133,441 km (0.081 R)
• M2: 598,092 km (0.055 R)
• M3: 1,015,321 km (0.053 R)
• M4: 1,423,274 km (0.083 R)
• M5: 1,875,209 km (0.119 R)
• M6: 2,421,840 km (0.054 R)
• M7: 2,776,088 km (0.062 R)
• M8: 3,871,593 km (0.118 R)
• M9: 4,320,387 km (0.102 R)
• M10: 4,909,204 km (0.098 R)
• M11: 5,879,795 km (0.094 R)
• M12: 6,526,058 km (0.076 R)
• M13: 7,136,566 km (0.097 R)
• M14: 7,526,568 km (0.097 R)
• M15: 7,901,460 km (0.051 R)
• M16: 8,941,465 km (0.096 R)
• M17: 9,864,484 km (0.088 R)
• M18: 10,209,007 km (0.098 R)
• M19: 10,777,330 km (0.082 R)
• M20: 11,517,091 km (0.079 R)
• M21: 11,860,867 km (0.045 R)
• M22: 14,595,666 km (0.066 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 339.3

Radius: 10.5

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 2.72 AU - 3.29 AU

Year: 3653 Days

Day: 8.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 63,181,564 km

• M1: 130,599 km (0.099 R)
• M2: 645,066 km (0.114 R)
• M3: 991,684 km (0.115 R)
• M4: 1,536,370 km (0.091 R)
• M5: 3,028,758 km (0.091 R)
• M6: 3,368,046 km (0.1 R)
• M7: 3,770,764 km (0.11 R)
• M8: 4,205,645 km (0.105 R)
• M9: 4,807,328 km (0.073 R)
• M10: 5,441,024 km (0.118 R)
• M11: 5,919,737 km (0.102 R)
• M12: 7,225,428 km (0.088 R)
• M13: 10,978,090 km (0.107 R)
• M14: 11,579,773 km (0.06 R)
• M15: 12,937,074 km (0.114 R)
• M16: 13,517,813 km (0.109 R)
• M17: 14,492,443 km (0.1 R)
• M18: 15,021,272 km (0.101 R)
• M19: 16,271,312 km (0.074 R)
• M20: 16,895,434 km (0.102 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 549.3

Radius: 4.9

Gravity: 22.88 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 7.69 AU - 8.97 AU

Year: 16900 Days

Day: 20.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 63,181,564 km

• M1: 62,233 km (0.1 R)
• M2: 265,536 km (0.088 R)
• M3: 1,275,920 km (0.113 R)
• M4: 3,105,203 km (0.069 R)
• M5: 4,010,420 km (0.115 R)
• M6: 4,838,294 km (0.1 R)
• M7: 5,474,534 km (0.046 R)
• M8: 6,954,655 km (0.119 R)
• M9: 7,763,232 km (0.083 R)
• M10: 10,619,953 km (0.106 R)
• M11: 12,249,522 km (0.11 R)
• M12: 15,919,308 km (0.117 R)
• M13: 17,798,556 km (0.074 R)
• M14: 19,820,671 km (0.076 R)
• M15: 21,068,317 km (0.103 R)
• M16: 26,266,095 km (0.111 R)
• M17: 30,015,018 km (0.084 R)
• M18: 32,988,425 km (0.063 R)
• M19: 35,247,054 km (0.052 R)
• M20: 42,929,353 km (0.048 R)
• M21: 47,941,181 km (0.103 R)
• M22: 58,925,704 km (0.12 R)
• M23: 61,678,753 km (0.119 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 539 - 11,393 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit