🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.34

Radius: 0.65

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.56 AU - 0.62 AU

Year: 293 Days

Day: 26 Hours

Environment

Temp: -136 °C

Axial Tilt: 15.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 54,645,991 km

• M1: 16,157 km (0.1 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.85

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.52 AU - 0.78 AU

Year: 338 Days

Day: 28.1 Hours

Environment

Temp: -140 °C

Axial Tilt: 41 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 632

Radius: 9.8

Gravity: 6.58 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 0.62 AU - 0.82 AU

Year: 394 Days

Day: 8.1 Hours

Environment

Temp: -133 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 54,645,991 km

• M1: 121,922 km (0.107 R)
• M2: 460,163 km (0.092 R)
• M3: 886,667 km (0.113 R)
• M4: 1,275,023 km (0.072 R)
• M5: 1,662,182 km (0.112 R)
• M6: 2,086,442 km (0.101 R)
• M7: 2,442,036 km (0.062 R)
• M8: 3,144,098 km (0.115 R)
• M9: 3,472,017 km (0.034 R)
• M10: 5,219,320 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 484.8

Radius: 11.6

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.79 AU - 1.17 AU

Year: 626 Days

Day: 5.9 Hours

Environment

Temp: -151 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,645,991 km

• M1: 144,212 km (0.118 R)
• M2: 877,990 km (0.088 R)
• M3: 1,769,444 km (0.053 R)
• M4: 2,208,214 km (0.066 R)
• M5: 2,688,124 km (0.09 R)
• M6: 3,457,057 km (0.081 R)
• M7: 3,832,997 km (0.101 R)
• M8: 4,934,635 km (0.053 R)
• M9: 5,814,869 km (0.069 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 193.8

Radius: 14.3

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 1.22 AU - 1.92 AU

Year: 1270 Days

Day: 5.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 54,645,991 km

• M1: 179,667 km (0.083 R)
• M2: 638,933 km (0.088 R)
• M3: 1,184,965 km (0.117 R)
• M4: 1,726,060 km (0.049 R)
• M5: 2,273,439 km (0.057 R)
• M6: 2,913,269 km (0.05 R)
• M7: 4,851,309 km (0.109 R)
• M8: 5,713,442 km (0.085 R)
• M9: 6,230,901 km (0.07 R)
• M10: 7,250,410 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 623.8

Radius: 11.4

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 4.9 AU - 6.48 AU

Year: 8764 Days

Day: 12.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 109.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 54,645,991 km

• M1: 142,118 km (0.111 R)
• M2: 523,443 km (0.084 R)
• M3: 1,175,989 km (0.033 R)
• M4: 1,721,871 km (0.092 R)
• M5: 3,608,301 km (0.051 R)
• M6: 4,405,508 km (0.113 R)
• M7: 5,009,584 km (0.119 R)
• M8: 7,391,182 km (0.08 R)
• M9: 10,644,487 km (0.084 R)
• M10: 11,154,316 km (0.037 R)
• M11: 11,520,831 km (0.114 R)
• M12: 19,126,686 km (0.085 R)
• M13: 27,020,218 km (0.086 R)
• M14: 32,414,567 km (0.066 R)

Asteroid Belt

Center: 6.08 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 6.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 99

Radius: 6.1

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 5.15 AU - 7.79 AU

Year: 10626 Days

Day: 16.7 Hours

Environment

Temp: -215 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 54,645,991 km

• M1: 75,996 km (0.103 R)
• M2: 414,835 km (0.067 R)
• M3: 649,255 km (0.064 R)
• M4: 1,157,738 km (0.07 R)
• M5: 1,956,142 km (0.078 R)
• M6: 2,300,666 km (0.097 R)
• M7: 5,917,045 km (0.085 R)
• M8: 7,687,535 km (0.039 R)
• M9: 8,108,354 km (0.096 R)
• M10: 9,662,676 km (0.109 R)
• M11: 9,987,603 km (0.107 R)
• M12: 11,586,205 km (0.032 R)
• M13: 12,952,932 km (0.05 R)
• M14: 13,751,335 km (0.095 R)
• M15: 14,529,095 km (0.088 R)
• M16: 15,890,136 km (0.115 R)
• M17: 18,302,551 km (0.077 R)
• M18: 19,242,924 km (0.098 R)
• M19: 23,111,076 km (0.094 R)
• M20: 25,649,004 km (0.12 R)
• M21: 25,959,270 km (0.075 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 747.6

Radius: 3.4

Gravity: 64.67 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 5.72 AU - 8.04 AU

Year: 11652 Days

Day: 18.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 54,645,991 km

• M1: 42,336 km (0.113 R)
• M2: 159,471 km (0.108 R)
• M3: 329,863 km (0.079 R)
• M4: 680,970 km (0.081 R)
• M5: 875,148 km (0.101 R)
• M6: 1,035,666 km (0.086 R)
• M7: 1,190,350 km (0.067 R)
• M8: 1,306,289 km (0.116 R)
• M9: 1,637,648 km (0.087 R)
• M10: 1,765,255 km (0.072 R)
• M11: 1,916,798 km (0.101 R)
• M12: 2,207,466 km (0.092 R)
• M13: 2,568,745 km (0.073 R)
• M14: 3,014,846 km (0.074 R)
• M15: 3,833,296 km (0.082 R)
• M16: 6,705,276 km (0.07 R)
• M17: 7,457,304 km (0.062 R)
• M18: 7,675,717 km (0.104 R)
• M19: 10,531,690 km (0.051 R)
• M20: 11,836,632 km (0.092 R)
• M21: 12,134,033 km (0.065 R)
• M22: 12,436,221 km (0.111 R)
• M23: 12,620,076 km (0.119 R)
• M24: 12,930,342 km (0.049 R)
• M25: 14,899,798 km (0.04 R)
• M26: 19,585,503 km (0.108 R)
• M27: 20,085,160 km (0.092 R)
• M28: 20,253,607 km (0.082 R)
• M29: 22,529,739 km (0.073 R)
• M30: 26,054,414 km (0.089 R)
• M31: 26,658,490 km (0.116 R)
• M32: 33,575,746 km (0.11 R)
• M33: 34,051,467 km (0.086 R)
• M34: 36,622,456 km (0.088 R)
• M35: 44,247,161 km (0.09 R)
• M36: 47,154,446 km (0.068 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 319 - 13,641 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit