🌌 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 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 165.1

Radius: 9.9

Gravity: 1.68 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.54 AU - 0.66 AU

Year: 327 Days

Day: 6.2 Hours

Environment

Temp: -146 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 53,654,354 km

• M1: 123,269 km (0.101 R)
• M2: 438,621 km (0.066 R)
• M3: 833,859 km (0.09 R)
• M4: 1,392,158 km (0.09 R)
• M5: 2,776,536 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 480.2

Radius: 11.8

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.14 AU - 1.18 AU

Year: 878 Days

Day: 9.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 53,654,354 km

• M1: 146,905 km (0.079 R)
• M2: 695,929 km (0.08 R)
• M3: 1,125,275 km (0.12 R)
• M4: 1,614,011 km (0.082 R)
• M5: 2,069,537 km (0.045 R)
• M6: 2,689,022 km (0.072 R)
• M7: 3,804,124 km (0.07 R)
• M8: 4,704,404 km (0.095 R)
• M9: 5,515,225 km (0.028 R)
• M10: 6,625,540 km (0.058 R)
• M11: 8,191,680 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 531.7

Radius: 12.3

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.66 AU - 2.06 AU

Year: 1783 Days

Day: 6.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 53,654,354 km

• M1: 153,487 km (0.118 R)
• M2: 601,084 km (0.075 R)
• M3: 1,076,656 km (0.072 R)
• M4: 1,540,708 km (0.105 R)
• M5: 2,127,431 km (0.12 R)
• M6: 2,563,958 km (0.111 R)
• M7: 3,075,134 km (0.113 R)
• M8: 3,788,267 km (0.116 R)
• M9: 4,397,878 km (0.065 R)
• M10: 4,786,533 km (0.106 R)
• M11: 5,814,420 km (0.115 R)
• M12: 6,259,923 km (0.083 R)
• M13: 11,326,803 km (0.088 R)
• M14: 13,183,612 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 261

Radius: 9.1

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 2.23 AU - 2.89 AU

Year: 2879 Days

Day: 13.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 53,654,354 km

• M1: 113,246 km (0.1 R)
• M2: 399,426 km (0.085 R)
• M3: 693,835 km (0.079 R)
• M4: 1,180,327 km (0.11 R)
• M5: 1,465,311 km (0.084 R)
• M6: 1,766,003 km (0.098 R)
• M7: 3,047,309 km (0.082 R)
• M8: 4,656,533 km (0.098 R)
• M9: 5,032,024 km (0.03 R)
• M10: 5,450,299 km (0.109 R)
• M11: 7,471,666 km (0.049 R)
• M12: 8,075,742 km (0.083 R)
• M13: 8,374,638 km (0.117 R)
• M14: 8,681,015 km (0.103 R)
• M15: 9,058,450 km (0.101 R)
• M16: 11,076,226 km (0.08 R)
• M17: 12,405,703 km (0.118 R)
• M18: 13,880,887 km (0.066 R)
• M19: 14,528,945 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 741.2

Radius: 8

Gravity: 11.58 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 2.39 AU - 3.09 AU

Year: 3188 Days

Day: 11.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 53,654,354 km

• M1: 99,782 km (0.061 R)
• M2: 388,655 km (0.097 R)
• M3: 651,349 km (0.04 R)
• M4: 1,022,202 km (0.068 R)
• M5: 1,530,237 km (0.067 R)
• M6: 2,296,178 km (0.081 R)
• M7: 2,756,790 km (0.115 R)
• M8: 3,026,814 km (0.09 R)
• M9: 3,503,732 km (0.045 R)
• M10: 5,522,705 km (0.089 R)
• M11: 6,643,492 km (0.096 R)
• M12: 7,226,026 km (0.107 R)
• M13: 8,885,515 km (0.056 R)
• M14: 9,592,515 km (0.097 R)
• M15: 11,938,957 km (0.118 R)
• M16: 12,341,525 km (0.098 R)
• M17: 14,191,602 km (0.07 R)
• M18: 15,052,987 km (0.096 R)
• M19: 16,110,643 km (0.095 R)
• M20: 17,273,767 km (0.088 R)
• M21: 18,196,636 km (0.069 R)
• M22: 18,970,506 km (0.083 R)
• M23: 21,686,455 km (0.049 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 82.6

Radius: 9.6

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 3.09 AU - 3.57 AU

Year: 4271 Days

Day: 8.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 53,654,354 km

• M1: 119,828 km (0.066 R)
• M2: 486,043 km (0.081 R)
• M3: 826,977 km (0.091 R)
• M4: 2,407,479 km (0.099 R)
• M5: 2,853,280 km (0.097 R)
• M6: 3,658,266 km (0.079 R)
• M7: 4,034,056 km (0.108 R)
• M8: 4,924,164 km (0.12 R)
• M9: 6,460,833 km (0.108 R)
• M10: 7,676,016 km (0.045 R)
• M11: 7,981,196 km (0.062 R)
• M12: 9,440,673 km (0.112 R)
• M13: 12,081,823 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 491.7

Radius: 4.8

Gravity: 21.34 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 6.86 AU - 7.82 AU

Year: 13978 Days

Day: 22.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 53,654,354 km

• M1: 59,839 km (0.116 R)
• M2: 296,054 km (0.116 R)
• M3: 570,417 km (0.093 R)
• M4: 764,146 km (0.117 R)
• M5: 2,260,424 km (0.1 R)
• M6: 3,699,705 km (0.082 R)
• M7: 4,380,525 km (0.108 R)
• M8: 5,623,982 km (0.08 R)
• M9: 9,221,961 km (0.104 R)
• M10: 11,349,093 km (0.095 R)
• M11: 12,405,104 km (0.117 R)
• M12: 13,081,586 km (0.091 R)
• M13: 13,977,976 km (0.116 R)
• M14: 22,220,669 km (0.111 R)
• M15: 25,985,449 km (0.069 R)
• M16: 30,593,812 km (0.11 R)
• M17: 37,588,111 km (0.067 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 533 - 18,671 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit