🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.14

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.43 AU - 0.59 AU

Year: 235 Days

Day: 13.6 Hours

Environment

Temp: -124 °C

Axial Tilt: 6.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 35,776,596 km

• M1: 198,367 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 442.6

Radius: 11.9

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.58 AU - 0.88 AU

Year: 403 Days

Day: 10.9 Hours

Environment

Temp: -146 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 35,776,596 km

• M1: 148,102 km (0.079 R)
• M2: 604,525 km (0.118 R)
• M3: 1,022,202 km (0.09 R)
• M4: 1,414,747 km (0.113 R)
• M5: 1,795,025 km (0.091 R)
• M6: 2,179,641 km (0.109 R)
• M7: 2,769,954 km (0.104 R)
• M8: 3,235,204 km (0.068 R)
• M9: 3,635,378 km (0.082 R)
• M10: 4,220,904 km (0.111 R)
• M11: 4,618,236 km (0.034 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 848.8

Radius: 9.6

Gravity: 9.21 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 0.79 AU - 1.05 AU

Year: 570 Days

Day: 5.3 Hours

Environment

Temp: -163 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 35,776,596 km

• M1: 120,576 km (0.115 R)
• M2: 460,761 km (0.065 R)
• M3: 785,090 km (0.088 R)
• M4: 1,138,440 km (0.12 R)
• M5: 1,942,528 km (0.096 R)
• M6: 2,257,133 km (0.043 R)
• M7: 2,627,537 km (0.03 R)
• M8: 2,967,124 km (0.035 R)
• M9: 3,612,340 km (0.108 R)
• M10: 4,107,210 km (0.097 R)
• M11: 5,026,638 km (0.077 R)
• M12: 6,116,309 km (0.095 R)
• M13: 6,472,053 km (0.091 R)
• M14: 6,841,559 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 885.2

Radius: 10.1

Gravity: 8.68 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.43 AU - 1.79 AU

Year: 1319 Days

Day: 10.5 Hours

Environment

Temp: -176 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 35,776,596 km

• M1: 126,111 km (0.082 R)
• M2: 469,737 km (0.112 R)
• M3: 843,732 km (0.074 R)
• M4: 1,275,172 km (0.093 R)
• M5: 1,862,045 km (0.102 R)
• M6: 2,454,303 km (0.117 R)
• M7: 2,795,236 km (0.104 R)
• M8: 3,413,524 km (0.052 R)
• M9: 5,004,198 km (0.06 R)
• M10: 5,962,822 km (0.051 R)
• M11: 6,962,285 km (0.111 R)
• M12: 9,197,277 km (0.1 R)
• M13: 10,027,246 km (0.106 R)
• M14: 10,528,399 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 476.5

Radius: 11.3

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 2.28 AU - 2.9 AU

Year: 2691 Days

Day: 13.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 35,776,596 km

• M1: 141,071 km (0.087 R)
• M2: 526,136 km (0.116 R)
• M3: 959,970 km (0.086 R)
• M4: 1,730,399 km (0.086 R)
• M5: 2,389,078 km (0.107 R)
• M6: 3,972,272 km (0.066 R)
• M7: 4,658,926 km (0.12 R)
• M8: 5,235,925 km (0.036 R)
• M9: 5,687,412 km (0.092 R)
• M10: 6,400,096 km (0.116 R)
• M11: 7,609,445 km (0.07 R)
• M12: 8,443,154 km (0.079 R)
• M13: 9,268,486 km (0.113 R)
• M14: 9,824,391 km (0.066 R)
• M15: 11,156,560 km (0.09 R)
• M16: 12,068,659 km (0.082 R)
• M17: 12,480,502 km (0.084 R)
• M18: 13,951,049 km (0.069 R)
• M19: 14,496,782 km (0.066 R)
• M20: 15,103,999 km (0.106 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 995.9

Radius: 6.6

Gravity: 22.86 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 5.35 AU - 7.55 AU

Year: 10577 Days

Day: 17.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 35,776,596 km

• M1: 82,129 km (0.071 R)
• M2: 427,102 km (0.057 R)
• M3: 681,418 km (0.099 R)
• M4: 1,129,614 km (0.048 R)
• M5: 1,541,905 km (0.097 R)
• M6: 2,217,190 km (0.04 R)
• M7: 2,664,637 km (0.066 R)
• M8: 4,047,221 km (0.105 R)
• M9: 4,588,615 km (0.109 R)
• M10: 7,548,709 km (0.098 R)
• M11: 8,994,722 km (0.105 R)
• M12: 9,808,983 km (0.096 R)
• M13: 11,293,293 km (0.116 R)
• M14: 11,525,170 km (0.118 R)
• M15: 13,497,019 km (0.092 R)
• M16: 14,223,766 km (0.117 R)
• M17: 16,486,134 km (0.03 R)
• M18: 18,573,024 km (0.086 R)
• M19: 19,721,637 km (0.105 R)
• M20: 22,798,865 km (0.057 R)
• M21: 23,638,857 km (0.106 R)
• M22: 24,018,836 km (0.109 R)
• M23: 29,445,050 km (0.071 R)
• M24: 30,106,571 km (0.084 R)
• M25: 41,941,857 km (0.068 R)
• M26: 45,357,326 km (0.115 R)
• M27: 47,885,830 km (0.117 R)
• M28: 49,107,595 km (0.097 R)
• M29: 52,252,741 km (0.09 R)
• M30: 53,221,836 km (0.098 R)
• M31: 54,697,769 km (0.099 R)
• M32: 56,032,630 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 50.5

Radius: 7.5

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 10.51 AU - 11.61 AU

Year: 23749 Days

Day: 22.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 35,776,596 km

• M1: 93,349 km (0.111 R)
• M2: 780,153 km (0.115 R)
• M3: 1,352,514 km (0.104 R)
• M4: 5,496,375 km (0.111 R)
• M5: 8,034,453 km (0.107 R)
• M6: 9,101,086 km (0.089 R)
• M7: 10,029,191 km (0.102 R)
• M8: 14,670,614 km (0.072 R)
• M9: 15,511,354 km (0.113 R)
• M10: 19,767,863 km (0.055 R)
• M11: 22,084,685 km (0.06 R)
• M12: 30,687,310 km (0.037 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 350 - 16,678 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit