🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.26

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.58 AU - 0.76 AU

Year: 233 Days

Day: 38.1 Hours

Environment

Temp: 9 °C

Axial Tilt: 39.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.12

Radius: 0.43

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.12 AU - 1.2 AU

Year: 530 Days

Day: 20.3 Hours

Environment

Temp: -68 °C

Axial Tilt: 34.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 90,152,188 km

• M1: 18,700 km (0.116 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.02

Radius: 1.74

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.09 AU - 1.41 AU

Year: 593 Days

Day: 38.8 Hours

Environment

Temp: -78 °C

Axial Tilt: 23.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.18

Radius: 0.5

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 2.19 AU - 2.65 AU

Year: 1598 Days

Day: 30 Hours

Environment

Temp: -133 °C

Axial Tilt: 46.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.13 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 493.7

Radius: 9

Gravity: 6.1 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 5.11 AU - 6.55 AU

Year: 5977 Days

Day: 10.8 Hours

Environment

Temp: -177 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 90,152,188 km

• M1: 112,049 km (0.049 R)
• M2: 457,919 km (0.066 R)
• M3: 743,801 km (0.107 R)
• M4: 2,145,233 km (0.117 R)
• M5: 2,955,007 km (0.052 R)
• M6: 4,047,969 km (0.112 R)
• M7: 4,949,296 km (0.116 R)
• M8: 5,650,012 km (0.09 R)
• M9: 12,077,186 km (0.086 R)
• M10: 14,752,594 km (0.089 R)
• M11: 15,435,209 km (0.065 R)
• M12: 17,421,121 km (0.101 R)
• M13: 19,639,358 km (0.112 R)
• M14: 22,334,065 km (0.104 R)
• M15: 26,242,758 km (0.088 R)
• M16: 27,075,868 km (0.117 R)
• M17: 28,970,376 km (0.101 R)
• M18: 29,950,092 km (0.072 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 70

Radius: 11.4

Gravity: 0.54 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 7.84 AU - 9.18 AU

Year: 10541 Days

Day: 6.4 Hours

Environment

Temp: -183 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 90,152,188 km

• M1: 148,401 km (0.109 R)
• M2: 515,365 km (0.095 R)
• M3: 2,806,157 km (0.088 R)
• M4: 3,654,526 km (0.082 R)
• M5: 4,106,761 km (0.1 R)
• M6: 4,903,669 km (0.059 R)
• M7: 5,855,261 km (0.088 R)
• M8: 6,956,451 km (0.083 R)
• M9: 7,459,399 km (0.106 R)
• M10: 7,819,331 km (0.05 R)
• M11: 9,152,847 km (0.109 R)
• M12: 9,991,043 km (0.075 R)
• M13: 13,142,323 km (0.085 R)
• M14: 13,717,227 km (0.113 R)
• M15: 15,020,374 km (0.061 R)
• M16: 15,755,349 km (0.084 R)
• M17: 18,937,594 km (0.102 R)
• M18: 21,523,094 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 827.5

Radius: 7.7

Gravity: 13.96 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 11.84 AU - 17.18 AU

Year: 23468 Days

Day: 21.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 90,152,188 km

• M1: 103,372 km (0.12 R)
• M2: 342,878 km (0.118 R)
• M3: 603,627 km (0.102 R)
• M4: 1,264,551 km (0.104 R)
• M5: 1,809,835 km (0.119 R)
• M6: 2,676,156 km (0.08 R)
• M7: 3,302,822 km (0.088 R)
• M8: 4,439,018 km (0.098 R)
• M9: 5,437,883 km (0.094 R)
• M10: 6,257,230 km (0.114 R)
• M11: 7,255,946 km (0.1 R)
• M12: 7,714,912 km (0.107 R)
• M13: 10,497,432 km (0.071 R)
• M14: 22,937,393 km (0.118 R)
• M15: 25,402,616 km (0.061 R)
• M16: 27,060,310 km (0.094 R)
• M17: 30,067,676 km (0.069 R)
• M18: 32,601,116 km (0.085 R)
• M19: 33,290,762 km (0.114 R)
• M20: 37,183,748 km (0.11 R)
• M21: 37,634,187 km (0.106 R)
• M22: 39,941,285 km (0.107 R)
• M23: 48,847,146 km (0.109 R)
• M24: 62,518,745 km (0.088 R)
• M25: 69,765,266 km (0.094 R)
• M26: 79,523,236 km (0.115 R)
• M27: 80,772,079 km (0.084 R)
• M28: 82,797,335 km (0.083 R)
• M29: 83,308,810 km (0.062 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 508 - 18,195 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit