🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.12

Radius: 0.43

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.46 AU - 0.64 AU

Year: 147 Days

Day: 32.3 Hours

Environment

Temp: 213 °C

Axial Tilt: 18.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 72,331,582 km

• M1: 105,915 km (0.086 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.89

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.48 AU - 0.72 AU

Year: 167 Days

Day: 13.6 Hours

Environment

Temp: 228 °C

Axial Tilt: 34.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.92

Radius: 1.54

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.62 AU - 0.68 AU

Year: 189 Days

Day: 24.5 Hours

Environment

Temp: 208 °C

Axial Tilt: 48.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.99

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.52 AU - 2.14 AU

Year: 891 Days

Day: 21.7 Hours

Environment

Temp: -45 °C

Axial Tilt: 15.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.35

Radius: 1.13

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 1.6 AU - 2.54 AU

Year: 1072 Days

Day: 40.4 Hours

Environment

Temp: -65 °C

Axial Tilt: 26.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.59

Radius: 0.81

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 2.15 AU - 2.99 AU

Year: 1483 Days

Day: 14.1 Hours

Environment

Temp: -79 °C

Axial Tilt: 20.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.4

Radius: 11

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 6.39 AU - 10.31 AU

Year: 8684 Days

Day: 13.4 Hours

Environment

Temp: -165 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 72,331,582 km

• M1: 137,032 km (0.112 R)
• M2: 3,321,222 km (0.074 R)
• M3: 3,718,853 km (0.068 R)
• M4: 4,314,702 km (0.069 R)
• M5: 5,161,725 km (0.079 R)
• M6: 5,934,248 km (0.041 R)
• M7: 6,395,758 km (0.09 R)
• M8: 8,036,098 km (0.051 R)
• M9: 9,521,007 km (0.114 R)
• M10: 10,372,368 km (0.096 R)
• M11: 11,043,464 km (0.041 R)
• M12: 13,231,932 km (0.112 R)
• M13: 14,731,202 km (0.05 R)
• M14: 19,367,838 km (0.094 R)
• M15: 20,524,080 km (0.1 R)
• M16: 22,307,286 km (0.082 R)
• M17: 27,507,907 km (0.106 R)
• M18: 27,932,166 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 314.2

Radius: 5.6

Gravity: 10.02 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 11.28 AU - 17.82 AU

Year: 19974 Days

Day: 17.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 72,331,582 km

• M1: 69,713 km (0.104 R)
• M2: 271,221 km (0.079 R)
• M3: 574,157 km (0.057 R)
• M4: 839,394 km (0.08 R)
• M5: 1,110,764 km (0.045 R)
• M6: 1,382,883 km (0.118 R)
• M7: 1,814,173 km (0.08 R)
• M8: 2,043,058 km (0.104 R)
• M9: 2,453,405 km (0.107 R)
• M10: 3,108,644 km (0.093 R)
• M11: 3,490,118 km (0.084 R)
• M12: 4,439,317 km (0.025 R)
• M13: 5,195,235 km (0.079 R)
• M14: 8,787,828 km (0.076 R)
• M15: 9,812,573 km (0.048 R)
• M16: 10,298,766 km (0.061 R)
• M17: 11,029,103 km (0.08 R)
• M18: 11,436,308 km (0.091 R)
• M19: 14,992,998 km (0.045 R)
• M20: 15,277,234 km (0.12 R)
• M21: 16,601,175 km (0.105 R)
• M22: 18,401,585 km (0.106 R)
• M23: 21,295,706 km (0.072 R)
• M24: 23,321,710 km (0.113 R)
• M25: 23,607,591 km (0.114 R)
• M26: 26,081,641 km (0.111 R)
• M27: 35,779,472 km (0.065 R)
• M28: 38,498,713 km (0.101 R)
• M29: 41,631,442 km (0.109 R)
• M30: 43,044,992 km (0.112 R)
• M31: 45,077,279 km (0.078 R)
• M32: 46,417,078 km (0.09 R)
• M33: 47,783,056 km (0.059 R)
• M34: 48,398,651 km (0.112 R)

Planet 9 - Ice Giant

Semi-Major Axis: 16.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 391.6

Radius: 3.8

Gravity: 27.12 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 14.7 AU - 18.66 AU

Year: 24517 Days

Day: 16.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 72,331,582 km

• M1: 47,423 km (0.058 R)
• M2: 195,375 km (0.075 R)
• M3: 468,840 km (0.082 R)
• M4: 625,469 km (0.054 R)
• M5: 785,838 km (0.064 R)
• M6: 3,281,130 km (0.119 R)
• M7: 3,708,681 km (0.099 R)
• M8: 5,875,008 km (0.071 R)
• M9: 6,678,199 km (0.111 R)
• M10: 11,556,436 km (0.103 R)
• M11: 13,223,554 km (0.093 R)
• M12: 16,861,176 km (0.08 R)
• M13: 17,274,665 km (0.1 R)
• M14: 18,294,473 km (0.08 R)
• M15: 18,468,156 km (0.062 R)
• M16: 20,923,357 km (0.11 R)
• M17: 21,787,733 km (0.03 R)
• M18: 22,575,815 km (0.089 R)
• M19: 25,700,615 km (0.11 R)
• M20: 26,028,085 km (0.117 R)
• M21: 35,416,249 km (0.062 R)
• M22: 37,474,715 km (0.093 R)
• M23: 42,737,568 km (0.099 R)
• M24: 46,830,716 km (0.028 R)
• M25: 51,522,554 km (0.116 R)
• M26: 52,043,005 km (0.072 R)
• M27: 62,022,080 km (0.106 R)
• M28: 66,428,186 km (0.109 R)
• M29: 67,665,062 km (0.095 R)

Kuiper Belt

Range: 30.5 - 53.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 168 - 17,228 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit