🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 947.6

Radius: 13.7

Gravity: 5.05 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.75 AU - 1.03 AU

Year: 551 Days

Day: 13.9 Hours

Environment

Temp: -157 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 40,401,774 km

• M1: 170,392 km (0.035 R)
• M2: 643,420 km (0.091 R)
• M3: 1,076,357 km (0.114 R)
• M4: 1,548,637 km (0.114 R)
• M5: 2,043,058 km (0.115 R)
• M6: 2,537,479 km (0.027 R)
• M7: 4,233,620 km (0.106 R)
• M8: 5,166,662 km (0.112 R)
• M9: 5,719,426 km (0.066 R)
• M10: 6,193,651 km (0.105 R)
• M11: 6,901,997 km (0.065 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 989.6

Radius: 12.5

Gravity: 6.33 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.87 AU - 1.27 AU

Year: 726 Days

Day: 14.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 40,401,774 km

• M1: 156,031 km (0.092 R)
• M2: 599,139 km (0.082 R)
• M3: 1,017,714 km (0.025 R)
• M4: 1,552,078 km (0.11 R)
• M5: 1,993,392 km (0.046 R)
• M6: 2,667,629 km (0.114 R)
• M7: 3,377,920 km (0.116 R)
• M8: 3,823,273 km (0.083 R)
• M9: 4,904,417 km (0.118 R)
• M10: 5,325,834 km (0.084 R)
• M11: 5,771,635 km (0.047 R)
• M12: 6,305,550 km (0.093 R)
• M13: 6,716,346 km (0.095 R)
• M14: 7,237,695 km (0.104 R)
• M15: 8,673,236 km (0.034 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31.1

Radius: 9.8

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.15 AU - 1.37 AU

Year: 928 Days

Day: 10.8 Hours

Environment

Temp: -180 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 40,401,774 km

• M1: 122,371 km (0.064 R)
• M2: 434,283 km (0.045 R)
• M3: 754,871 km (0.08 R)
• M4: 2,563,210 km (0.118 R)
• M5: 2,869,138 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.7

Radius: 13.3

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 2.88 AU - 4.04 AU

Year: 4222 Days

Day: 6.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,401,774 km

• M1: 165,455 km (0.063 R)
• M2: 679,623 km (0.116 R)
• M3: 1,408,614 km (0.082 R)
• M4: 2,573,083 km (0.108 R)
• M5: 3,075,134 km (0.052 R)
• M6: 3,768,520 km (0.101 R)
• M7: 4,539,847 km (0.087 R)
• M8: 6,708,567 km (0.073 R)
• M9: 7,599,721 km (0.095 R)
• M10: 10,707,168 km (0.103 R)
• M11: 12,254,160 km (0.098 R)
• M12: 15,787,961 km (0.099 R)
• M13: 17,483,354 km (0.109 R)
• M14: 19,361,854 km (0.044 R)
• M15: 22,714,342 km (0.042 R)
• M16: 24,641,911 km (0.119 R)
• M17: 25,333,801 km (0.104 R)
• M18: 26,038,706 km (0.116 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 477.3

Radius: 6.5

Gravity: 11.3 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 5.84 AU - 7.02 AU

Year: 10696 Days

Day: 15.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 108 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 40,401,774 km

• M1: 104,419 km (0.103 R)
• M2: 534,214 km (0.056 R)
• M3: 782,397 km (0.079 R)
• M4: 1,534,575 km (0.108 R)
• M5: 2,202,829 km (0.025 R)
• M6: 2,612,577 km (0.096 R)
• M7: 3,274,697 km (0.087 R)
• M8: 5,141,978 km (0.107 R)
• M9: 5,693,097 km (0.104 R)
• M10: 6,105,239 km (0.111 R)
• M11: 6,611,029 km (0.101 R)
• M12: 14,909,672 km (0.072 R)
• M13: 15,692,218 km (0.114 R)
• M14: 17,912,699 km (0.12 R)
• M15: 23,309,891 km (0.052 R)
• M16: 38,964,112 km (0.071 R)
• M17: 40,570,344 km (0.1 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 286.4

Radius: 3

Gravity: 31.82 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 6.78 AU - 7.08 AU

Year: 11968 Days

Day: 18.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 40,401,774 km

• M1: 41,738 km (0.058 R)
• M2: 205,697 km (0.115 R)
• M3: 623,674 km (0.108 R)
• M4: 1,193,791 km (0.088 R)
• M5: 1,410,259 km (0.115 R)
• M6: 2,065,348 km (0.11 R)
• M7: 2,340,758 km (0.073 R)
• M8: 3,642,409 km (0.069 R)
• M9: 3,915,126 km (0.078 R)
• M10: 4,932,990 km (0.095 R)
• M11: 6,499,728 km (0.085 R)
• M12: 8,159,816 km (0.066 R)
• M13: 9,657,291 km (0.096 R)
• M14: 12,617,533 km (0.096 R)
• M15: 14,791,639 km (0.104 R)
• M16: 15,739,790 km (0.04 R)
• M17: 16,660,565 km (0.036 R)
• M18: 17,066,125 km (0.112 R)
• M19: 19,045,305 km (0.101 R)
• M20: 21,330,113 km (0.071 R)
• M21: 22,211,693 km (0.118 R)
• M22: 30,354,605 km (0.109 R)
• M23: 30,958,980 km (0.12 R)
• M24: 32,087,546 km (0.12 R)
• M25: 35,749,254 km (0.06 R)
• M26: 36,990,916 km (0.083 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 266 - 11,327 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit