🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.92

Radius: 0.97

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.64 AU - 0.7 AU

Year: 349 Days

Day: 39.6 Hours

Environment

Temp: -139 °C

Axial Tilt: 8.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,311,415 km

• M1: 43,683 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 581.9

Radius: 11.4

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.87 AU - 1.25 AU

Year: 694 Days

Day: 15 Hours

Environment

Temp: -171 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 45,311,415 km

• M1: 141,819 km (0.039 R)
• M2: 557,850 km (0.051 R)
• M3: 1,032,375 km (0.061 R)
• M4: 1,506,002 km (0.09 R)
• M5: 1,900,491 km (0.061 R)
• M6: 2,486,765 km (0.07 R)
• M7: 3,165,940 km (0.104 R)
• M8: 3,823,273 km (0.073 R)
• M9: 4,290,168 km (0.113 R)
• M10: 4,746,142 km (0.075 R)
• M11: 5,216,777 km (0.096 R)
• M12: 5,700,128 km (0.029 R)
• M13: 6,291,787 km (0.096 R)
• M14: 6,653,814 km (0.041 R)
• M15: 7,310,250 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 50.4

Radius: 14.9

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.51 AU - 1.77 AU

Year: 1335 Days

Day: 8.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 45,311,415 km

• M1: 185,501 km (0.115 R)
• M2: 841,189 km (0.104 R)
• M3: 1,317,508 km (0.09 R)
• M4: 1,805,198 km (0.1 R)
• M5: 2,303,807 km (0.053 R)
• M6: 2,956,054 km (0.09 R)
• M7: 3,634,929 km (0.112 R)
• M8: 5,232,186 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 780.3

Radius: 10.4

Gravity: 7.21 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 2.73 AU - 2.91 AU

Year: 3011 Days

Day: 8.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 45,311,415 km

• M1: 129,402 km (0.1 R)
• M2: 641,476 km (0.118 R)
• M3: 977,472 km (0.082 R)
• M4: 1,625,680 km (0.047 R)
• M5: 1,957,189 km (0.053 R)
• M6: 2,319,964 km (0.071 R)
• M7: 2,727,768 km (0.114 R)
• M8: 3,591,695 km (0.092 R)
• M9: 4,098,234 km (0.065 R)
• M10: 4,768,283 km (0.12 R)
• M11: 5,154,694 km (0.117 R)
• M12: 5,483,959 km (0.045 R)
• M13: 6,129,174 km (0.103 R)
• M14: 6,764,217 km (0.11 R)
• M15: 7,159,754 km (0.095 R)
• M16: 8,440,162 km (0.084 R)
• M17: 9,637,843 km (0.06 R)
• M18: 10,218,283 km (0.043 R)
• M19: 11,069,794 km (0.072 R)
• M20: 13,053,162 km (0.066 R)
• M21: 13,860,692 km (0.052 R)
• M22: 14,301,556 km (0.101 R)
• M23: 15,211,261 km (0.07 R)
• M24: 17,940,674 km (0.064 R)
• M25: 18,347,132 km (0.104 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 773.8

Radius: 4.7

Gravity: 35.03 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 5.08 AU - 7.8 AU

Year: 10391 Days

Day: 17.5 Hours

Environment

Temp: -230 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 45,311,415 km

• M1: 58,493 km (0.104 R)
• M2: 276,008 km (0.102 R)
• M3: 581,188 km (0.116 R)
• M4: 896,690 km (0.109 R)
• M5: 1,453,493 km (0.054 R)
• M6: 2,104,692 km (0.109 R)
• M7: 2,385,936 km (0.077 R)
• M8: 2,909,978 km (0.115 R)
• M9: 3,584,066 km (0.051 R)
• M10: 7,045,761 km (0.116 R)
• M11: 8,158,469 km (0.102 R)
• M12: 8,994,123 km (0.112 R)
• M13: 10,779,873 km (0.116 R)
• M14: 12,074,044 km (0.096 R)
• M15: 12,728,236 km (0.034 R)
• M16: 13,849,172 km (0.106 R)
• M17: 14,107,079 km (0.116 R)
• M18: 15,034,436 km (0.105 R)
• M19: 16,863,420 km (0.092 R)
• M20: 17,305,631 km (0.106 R)
• M21: 19,152,118 km (0.083 R)
• M22: 22,603,191 km (0.117 R)
• M23: 23,050,489 km (0.115 R)
• M24: 23,321,710 km (0.094 R)
• M25: 24,993,765 km (0.1 R)
• M26: 28,367,197 km (0.115 R)
• M27: 30,378,540 km (0.039 R)
• M28: 30,813,721 km (0.084 R)
• M29: 32,709,724 km (0.036 R)
• M30: 36,609,890 km (0.055 R)
• M31: 40,283,565 km (0.112 R)
• M32: 44,195,400 km (0.058 R)
• M33: 44,613,975 km (0.071 R)
• M34: 44,894,471 km (0.1 R)
• M35: 45,176,163 km (0.09 R)
• M36: 49,244,627 km (0.117 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 205.8

Radius: 3.5

Gravity: 16.8 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 7.56 AU - 10.16 AU

Year: 16768 Days

Day: 15.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 45,311,415 km

• M1: 43,533 km (0.093 R)
• M2: 368,908 km (0.118 R)
• M3: 914,941 km (0.114 R)
• M4: 2,034,681 km (0.084 R)
• M5: 2,226,764 km (0.113 R)
• M6: 4,864,324 km (0.12 R)
• M7: 6,519,326 km (0.108 R)
• M8: 7,908,491 km (0.068 R)
• M9: 11,416,562 km (0.117 R)
• M10: 11,910,234 km (0.054 R)
• M11: 22,617,552 km (0.064 R)
• M12: 26,587,581 km (0.111 R)
• M13: 27,066,144 km (0.084 R)
• M14: 28,139,060 km (0.097 R)
• M15: 43,568,884 km (0.112 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 377 - 13,058 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit