🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195

Radius: 12.6

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.73 AU - 0.95 AU

Year: 522 Days

Day: 9.2 Hours

Environment

Temp: -165 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 31,479,207 km

• M1: 156,629 km (0.109 R)
• M2: 632,500 km (0.074 R)
• M3: 1,038,060 km (0.037 R)
• M4: 1,735,784 km (0.056 R)
• M5: 2,243,370 km (0.103 R)
• M6: 2,729,114 km (0.097 R)
• M7: 3,151,728 km (0.05 R)
• M8: 4,379,627 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 963.9

Radius: 8.1

Gravity: 14.69 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.71 AU - 0.99 AU

Year: 532 Days

Day: 8.2 Hours

Environment

Temp: -170 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 31,479,207 km

• M1: 101,278 km (0.112 R)
• M2: 357,988 km (0.104 R)
• M3: 721,660 km (0.064 R)
• M4: 976,874 km (0.079 R)
• M5: 1,743,563 km (0.058 R)
• M6: 2,139,399 km (0.081 R)
• M7: 2,562,163 km (0.053 R)
• M8: 2,920,599 km (0.056 R)
• M9: 3,186,435 km (0.077 R)
• M10: 3,468,277 km (0.109 R)
• M11: 3,908,244 km (0.094 R)
• M12: 4,262,193 km (0.112 R)
• M13: 4,983,703 km (0.04 R)
• M14: 5,276,616 km (0.115 R)
• M15: 5,728,252 km (0.061 R)
• M16: 6,107,931 km (0.097 R)
• M17: 7,109,489 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 573.8

Radius: 11.4

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.96 AU - 1.12 AU

Year: 719 Days

Day: 5.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 31,479,207 km

• M1: 141,819 km (0.077 R)
• M2: 663,018 km (0.116 R)
• M3: 1,039,107 km (0.095 R)
• M4: 1,824,196 km (0.049 R)
• M5: 2,220,032 km (0.066 R)
• M6: 3,029,806 km (0.107 R)
• M7: 3,418,012 km (0.089 R)
• M8: 4,114,989 km (0.093 R)
• M9: 5,406,916 km (0.113 R)
• M10: 5,829,530 km (0.103 R)
• M11: 6,215,044 km (0.119 R)
• M12: 6,658,751 km (0.094 R)
• M13: 7,080,467 km (0.102 R)
• M14: 7,655,372 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 216.9

Radius: 14

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.85 AU - 1.25 AU

Year: 730 Days

Day: 13.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 31,479,207 km

• M1: 174,132 km (0.116 R)
• M2: 1,287,140 km (0.088 R)
• M3: 2,611,680 km (0.118 R)
• M4: 3,643,307 km (0.101 R)
• M5: 4,206,243 km (0.107 R)
• M6: 4,695,279 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 742.4

Radius: 8.3

Gravity: 10.78 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.14 AU - 1.5 AU

Year: 1029 Days

Day: 7.6 Hours

Environment

Temp: -191 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 31,479,207 km

• M1: 103,223 km (0.097 R)
• M2: 369,806 km (0.099 R)
• M3: 1,078,750 km (0.103 R)
• M4: 1,339,799 km (0.073 R)
• M5: 1,742,666 km (0.085 R)
• M6: 2,065,049 km (0.047 R)
• M7: 3,097,873 km (0.111 R)
• M8: 3,712,720 km (0.086 R)
• M9: 4,285,081 km (0.085 R)
• M10: 4,747,339 km (0.091 R)
• M11: 5,381,634 km (0.046 R)
• M12: 5,813,822 km (0.099 R)
• M13: 6,202,477 km (0.092 R)
• M14: 6,794,586 km (0.114 R)
• M15: 7,829,953 km (0.106 R)
• M16: 8,412,487 km (0.082 R)
• M17: 8,826,125 km (0.051 R)
• M18: 10,272,138 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 636.8

Radius: 13.3

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 3.73 AU - 6.13 AU

Year: 7424 Days

Day: 13.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 31,479,207 km

• M1: 169,345 km (0.098 R)
• M2: 686,804 km (0.085 R)
• M3: 1,393,504 km (0.053 R)
• M4: 4,713,829 km (0.099 R)
• M5: 5,597,653 km (0.102 R)
• M6: 8,580,934 km (0.073 R)
• M7: 9,489,591 km (0.111 R)
• M8: 10,557,271 km (0.095 R)
• M9: 12,280,340 km (0.085 R)
• M10: 13,776,917 km (0.08 R)
• M11: 14,900,846 km (0.026 R)
• M12: 21,069,364 km (0.068 R)
• M13: 25,575,850 km (0.087 R)
• M14: 27,362,498 km (0.116 R)
• M15: 29,614,843 km (0.053 R)
• M16: 34,166,508 km (0.113 R)
• M17: 35,021,909 km (0.104 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136

Radius: 11.1

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 4.37 AU - 5.87 AU

Year: 7858 Days

Day: 5.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 31,479,207 km

• M1: 140,622 km (0.113 R)
• M2: 568,622 km (0.094 R)
• M3: 1,144,424 km (0.088 R)
• M4: 1,630,467 km (0.099 R)
• M5: 2,957,400 km (0.077 R)
• M6: 3,702,398 km (0.113 R)
• M7: 4,076,692 km (0.114 R)
• M8: 9,423,170 km (0.119 R)
• M9: 14,522,961 km (0.108 R)
• M10: 16,714,570 km (0.076 R)
• M11: 17,338,244 km (0.107 R)
• M12: 18,036,267 km (0.094 R)
• M13: 19,550,647 km (0.083 R)
• M14: 20,821,780 km (0.09 R)
• M15: 22,830,729 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 269.3

Radius: 7.7

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 8.54 AU - 11.52 AU

Year: 21545 Days

Day: 21.3 Hours

Environment

Temp: -241 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 31,479,207 km

• M1: 98,735 km (0.111 R)
• M2: 798,105 km (0.078 R)
• M3: 1,722,470 km (0.09 R)
• M4: 2,121,747 km (0.091 R)
• M5: 2,916,111 km (0.097 R)
• M6: 3,459,002 km (0.043 R)
• M7: 4,459,363 km (0.08 R)
• M8: 7,145,692 km (0.096 R)
• M9: 7,852,991 km (0.11 R)
• M10: 10,201,378 km (0.095 R)
• M11: 11,271,302 km (0.045 R)
• M12: 14,648,773 km (0.089 R)
• M13: 20,586,911 km (0.032 R)
• M14: 27,634,167 km (0.079 R)
• M15: 27,954,008 km (0.101 R)
• M16: 31,869,582 km (0.077 R)
• M17: 32,575,684 km (0.109 R)
• M18: 36,390,729 km (0.058 R)
• M19: 46,079,585 km (0.081 R)
• M20: 46,982,109 km (0.107 R)
• M21: 51,350,666 km (0.112 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 41.8

Radius: 8

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 8.45 AU - 11.61 AU

Year: 21545 Days

Day: 15.8 Hours

Environment

Temp: -233 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 31,479,207 km

• M1: 99,483 km (0.069 R)
• M2: 522,545 km (0.083 R)
• M3: 1,515,277 km (0.108 R)
• M4: 3,336,631 km (0.113 R)
• M5: 3,975,115 km (0.072 R)
• M6: 7,506,073 km (0.094 R)
• M7: 9,922,827 km (0.1 R)
• M8: 16,899,772 km (0.082 R)
• M9: 25,015,756 km (0.073 R)
• M10: 28,298,382 km (0.032 R)
• M11: 30,824,791 km (0.059 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 171 - 13,705 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit