🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

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: 4.81

Radius: 1.87

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.49 AU - 0.53 AU

Year: 235 Days

Day: 38.7 Hours

Environment

Temp: -111 °C

Axial Tilt: 3.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.52 AU - 0.62 AU

Year: 278 Days

Day: 22 Hours

Environment

Temp: -120 °C

Axial Tilt: 18.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 971

Radius: 14.9

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.57 AU - 0.83 AU

Year: 378 Days

Day: 9.9 Hours

Environment

Temp: -137 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 6,771,274 km

• M1: 185,950 km (0.09 R)
• M2: 753,973 km (0.075 R)
• M3: 1,374,804 km (0.118 R)
• M4: 1,860,698 km (0.049 R)
• M5: 2,334,924 km (0.087 R)
• M6: 2,849,241 km (0.071 R)
• M7: 3,848,106 km (0.1 R)
• M8: 4,345,220 km (0.076 R)
• M9: 5,179,826 km (0.073 R)
• M10: 5,754,282 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 930

Radius: 12.7

Gravity: 5.77 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.7 AU - 0.84 AU

Year: 436 Days

Day: 6.1 Hours

Environment

Temp: -142 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 6,771,274 km

• M1: 157,975 km (0.045 R)
• M2: 854,653 km (0.079 R)
• M3: 1,365,679 km (0.065 R)
• M4: 2,080,158 km (0.061 R)
• M5: 2,686,179 km (0.111 R)
• M6: 3,371,338 km (0.083 R)
• M7: 4,212,826 km (0.101 R)
• M8: 4,837,846 km (0.103 R)
• M9: 6,519,924 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 623.3

Radius: 9.5

Gravity: 6.91 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.63 AU - 0.99 AU

Year: 471 Days

Day: 10.6 Hours

Environment

Temp: -144 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 6,771,274 km

• M1: 118,182 km (0.065 R)
• M2: 459,565 km (0.118 R)
• M3: 825,182 km (0.104 R)
• M4: 1,155,195 km (0.097 R)
• M5: 1,602,642 km (0.049 R)
• M6: 2,060,112 km (0.11 R)
• M7: 2,399,400 km (0.083 R)
• M8: 3,296,838 km (0.064 R)
• M9: 3,624,457 km (0.075 R)
• M10: 3,934,125 km (0.118 R)
• M11: 4,666,257 km (0.063 R)
• M12: 5,033,669 km (0.032 R)
• M13: 5,436,835 km (0.062 R)
• M14: 5,774,777 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 356.5

Radius: 11

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.09 AU - 1.45 AU

Year: 924 Days

Day: 10 Hours

Environment

Temp: -169 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 6,771,274 km

• M1: 137,181 km (0.103 R)
• M2: 920,476 km (0.088 R)
• M3: 2,009,399 km (0.064 R)
• M4: 2,714,154 km (0.107 R)
• M5: 3,112,384 km (0.118 R)
• M6: 4,101,674 km (0.054 R)
• M7: 5,559,356 km (0.069 R)
• M8: 6,755,391 km (0.052 R)
• M9: 7,270,307 km (0.097 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 73.2

Radius: 14.9

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.6 AU - 1.64 AU

Year: 1331 Days

Day: 6.9 Hours

Environment

Temp: -187 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 6,771,274 km

• M1: 193,580 km (0.087 R)
• M2: 1,011,880 km (0.076 R)
• M3: 1,581,249 km (0.08 R)
• M4: 2,541,817 km (0.086 R)
• M5: 3,578,381 km (0.061 R)
• M6: 4,100,627 km (0.104 R)
• M7: 4,747,189 km (0.09 R)
• M8: 5,709,403 km (0.04 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 135.1

Radius: 14.4

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.52 AU - 2 AU

Year: 1508 Days

Day: 11.2 Hours

Environment

Temp: -184 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 6,771,274 km

• M1: 179,667 km (0.052 R)
• M2: 850,613 km (0.095 R)
• M3: 1,355,207 km (0.098 R)
• M4: 2,156,902 km (0.074 R)
• M5: 2,955,306 km (0.114 R)
• M6: 3,678,013 km (0.106 R)
• M7: 4,208,487 km (0.093 R)
• M8: 4,839,491 km (0.115 R)
• M9: 5,496,974 km (0.09 R)
• M10: 6,372,121 km (0.101 R)
• M11: 7,034,391 km (0.114 R)
• M12: 7,788,065 km (0.078 R)

Planet 9 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 44.1

Radius: 13.4

Gravity: 0.25 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 2.07 AU - 2.31 AU

Year: 2093 Days

Day: 13.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 6,771,274 km

• M1: 228,735 km (0.079 R)
• M2: 1,068,727 km (0.077 R)
• M3: 1,725,462 km (0.034 R)
• M4: 2,520,575 km (0.07 R)
• M5: 3,123,454 km (0.066 R)
• M6: 4,011,766 km (0.107 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 409 - 12,914 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit