🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 875.8

Radius: 14.2

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 0.65 AU - 0.73 AU

Year: 396 Days

Day: 9.5 Hours

Environment

Temp: -147 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 85,683,116 km

• M1: 176,675 km (0.089 R)
• M2: 623,524 km (0.066 R)
• M3: 1,120,638 km (0.059 R)
• M4: 1,794,426 km (0.09 R)
• M5: 2,700,242 km (0.059 R)
• M6: 3,281,280 km (0.111 R)
• M7: 3,739,648 km (0.118 R)
• M8: 5,814,570 km (0.045 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 197.6

Radius: 13.9

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.79 AU - 1.03 AU

Year: 599 Days

Day: 8.6 Hours

Environment

Temp: -180 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 85,683,116 km

• M1: 175,179 km (0.11 R)
• M2: 664,663 km (0.032 R)
• M3: 1,255,425 km (0.117 R)
• M4: 2,443,831 km (0.08 R)
• M5: 3,220,842 km (0.095 R)
• M6: 3,802,778 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 391.7

Radius: 12.3

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.29 AU - 1.43 AU

Year: 1095 Days

Day: 6.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 85,683,116 km

• M1: 155,133 km (0.092 R)
• M2: 845,078 km (0.102 R)
• M3: 1,397,244 km (0.089 R)
• M4: 2,010,296 km (0.097 R)
• M5: 2,543,912 km (0.091 R)
• M6: 3,289,657 km (0.1 R)
• M7: 3,765,827 km (0.09 R)
• M8: 4,417,476 km (0.096 R)
• M9: 5,966,861 km (0.12 R)
• M10: 7,828,008 km (0.092 R)
• M11: 8,681,912 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 104.2

Radius: 11

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.36 AU - 1.44 AU

Year: 1143 Days

Day: 7.2 Hours

Environment

Temp: -184 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 85,683,116 km

• M1: 136,732 km (0.112 R)
• M2: 486,193 km (0.087 R)
• M3: 847,023 km (0.094 R)
• M4: 1,695,692 km (0.046 R)
• M5: 2,055,325 km (0.107 R)
• M6: 2,632,025 km (0.087 R)
• M7: 3,119,265 km (0.116 R)
• M8: 4,649,651 km (0.098 R)
• M9: 5,235,626 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872.1

Radius: 12.5

Gravity: 5.58 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 1.09 AU - 1.79 AU

Year: 1193 Days

Day: 11.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 85,683,116 km

• M1: 155,432 km (0.046 R)
• M2: 544,087 km (0.088 R)
• M3: 999,912 km (0.092 R)
• M4: 1,429,856 km (0.091 R)
• M5: 1,903,633 km (0.065 R)
• M6: 2,445,776 km (0.037 R)
• M7: 3,176,262 km (0.091 R)
• M8: 3,697,461 km (0.119 R)
• M9: 4,567,821 km (0.095 R)
• M10: 5,699,679 km (0.104 R)
• M11: 6,641,098 km (0.115 R)
• M12: 8,714,974 km (0.109 R)
• M13: 9,370,811 km (0.049 R)
• M14: 9,899,938 km (0.117 R)
• M15: 10,547,847 km (0.079 R)
• M16: 11,327,850 km (0.088 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 26.3

Radius: 5.5

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 7.71 AU - 11.51 AU

Year: 20563 Days

Day: 17.6 Hours

Environment

Temp: -237 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 85,683,116 km

• M1: 270,772 km (0.103 R)
• M2: 461,360 km (0.039 R)
• M3: 1,139,337 km (0.093 R)
• M4: 1,651,411 km (0.106 R)
• M5: 2,828,297 km (0.087 R)
• M6: 6,777,831 km (0.028 R)
• M7: 11,426,884 km (0.116 R)
• M8: 11,882,409 km (0.083 R)
• M9: 13,025,038 km (0.099 R)
• M10: 20,113,135 km (0.067 R)
• M11: 25,759,557 km (0.05 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 859.3

Radius: 5.5

Gravity: 28.41 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 8.52 AU - 11.18 AU

Year: 21339 Days

Day: 18.5 Hours

Environment

Temp: -244 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 85,683,116 km

• M1: 70,311 km (0.086 R)
• M2: 369,058 km (0.067 R)
• M3: 551,268 km (0.084 R)
• M4: 795,262 km (0.083 R)
• M5: 1,374,206 km (0.108 R)
• M6: 1,947,764 km (0.107 R)
• M7: 2,266,258 km (0.065 R)
• M8: 3,433,421 km (0.086 R)
• M9: 3,834,343 km (0.117 R)
• M10: 10,202,724 km (0.067 R)
• M11: 11,425,238 km (0.113 R)
• M12: 12,037,243 km (0.082 R)
• M13: 12,599,282 km (0.066 R)
• M14: 13,326,178 km (0.043 R)
• M15: 14,704,573 km (0.118 R)
• M16: 15,840,320 km (0.081 R)
• M17: 19,310,841 km (0.084 R)
• M18: 19,501,279 km (0.092 R)
• M19: 20,870,249 km (0.073 R)
• M20: 25,933,539 km (0.079 R)
• M21: 28,071,442 km (0.109 R)
• M22: 28,316,035 km (0.054 R)
• M23: 30,840,499 km (0.072 R)
• M24: 32,157,259 km (0.073 R)
• M25: 34,761,608 km (0.068 R)
• M26: 36,768,165 km (0.086 R)
• M27: 38,548,379 km (0.092 R)
• M28: 40,853,533 km (0.034 R)
• M29: 43,248,894 km (0.119 R)
• M30: 45,231,365 km (0.088 R)
• M31: 48,845,051 km (0.101 R)
• M32: 49,376,572 km (0.042 R)
• M33: 49,732,915 km (0.1 R)
• M34: 51,724,062 km (0.076 R)
• M35: 62,273,704 km (0.115 R)
• M36: 65,011,495 km (0.119 R)
• M37: 71,405,756 km (0.053 R)
• M38: 73,472,301 km (0.111 R)
• M39: 73,704,328 km (0.095 R)
• M40: 80,155,886 km (0.093 R)
• M41: 81,390,517 km (0.111 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: 283 - 15,657 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit