🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 229.8

Radius: 9.1

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.67 AU - 1.09 AU

Year: 550 Days

Day: 9.3 Hours

Environment

Temp: -172 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 46,291,069 km

• M1: 113,246 km (0.115 R)
• M2: 412,142 km (0.108 R)
• M3: 763,548 km (0.047 R)
• M4: 1,251,237 km (0.1 R)
• M5: 1,535,024 km (0.075 R)
• M6: 1,899,295 km (0.078 R)
• M7: 2,236,787 km (0.071 R)
• M8: 2,794,638 km (0.105 R)
• M9: 3,085,905 km (0.073 R)
• M10: 3,555,642 km (0.059 R)
• M11: 3,898,969 km (0.115 R)
• M12: 4,570,065 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 434.9

Radius: 9.6

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.51 AU - 1.75 AU

Year: 1388 Days

Day: 14.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 46,291,069 km

• M1: 119,379 km (0.086 R)
• M2: 441,613 km (0.045 R)
• M3: 922,869 km (0.11 R)
• M4: 1,289,982 km (0.048 R)
• M5: 1,986,809 km (0.075 R)
• M6: 2,786,260 km (0.095 R)
• M7: 3,174,916 km (0.096 R)
• M8: 3,723,341 km (0.116 R)
• M9: 4,439,018 km (0.067 R)
• M10: 5,204,061 km (0.115 R)
• M11: 5,587,181 km (0.116 R)
• M12: 6,780,374 km (0.071 R)
• M13: 9,308,428 km (0.117 R)
• M14: 10,654,061 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 888.8

Radius: 15

Gravity: 3.95 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 2.33 AU - 3.11 AU

Year: 2991 Days

Day: 6.4 Hours

Environment

Temp: -213 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 46,291,069 km

• M1: 186,848 km (0.039 R)
• M2: 723,605 km (0.092 R)
• M3: 1,479,673 km (0.108 R)
• M4: 2,371,725 km (0.087 R)
• M5: 3,121,210 km (0.048 R)
• M6: 3,900,615 km (0.055 R)
• M7: 5,426,214 km (0.102 R)
• M8: 6,098,357 km (0.079 R)
• M9: 7,807,214 km (0.096 R)
• M10: 10,450,458 km (0.097 R)
• M11: 11,110,634 km (0.085 R)
• M12: 11,754,802 km (0.041 R)
• M13: 12,287,969 km (0.104 R)
• M14: 13,117,938 km (0.108 R)
• M15: 13,595,155 km (0.089 R)
• M16: 15,941,448 km (0.092 R)
• M17: 16,540,289 km (0.052 R)
• M18: 17,324,331 km (0.09 R)
• M19: 19,209,414 km (0.07 R)
• M20: 21,032,862 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 551.8

Radius: 12

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 2.21 AU - 3.43 AU

Year: 3158 Days

Day: 12.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 46,291,069 km

• M1: 149,299 km (0.092 R)
• M2: 544,536 km (0.069 R)
• M3: 999,763 km (0.051 R)
• M4: 1,681,330 km (0.054 R)
• M5: 2,147,777 km (0.105 R)
• M6: 4,012,215 km (0.118 R)
• M7: 5,066,581 km (0.084 R)
• M8: 5,456,582 km (0.111 R)
• M9: 8,708,092 km (0.09 R)
• M10: 11,223,879 km (0.112 R)
• M11: 12,275,852 km (0.066 R)
• M12: 13,810,726 km (0.071 R)
• M13: 14,381,890 km (0.04 R)
• M14: 19,005,362 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 253.1

Radius: 12

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 2.45 AU - 3.87 AU

Year: 3746 Days

Day: 7.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 46,291,069 km

• M1: 149,299 km (0.118 R)
• M2: 703,260 km (0.087 R)
• M3: 1,258,268 km (0.046 R)
• M4: 2,060,860 km (0.058 R)
• M5: 2,542,117 km (0.12 R)
• M6: 2,955,755 km (0.109 R)
• M7: 4,252,020 km (0.111 R)
• M8: 4,708,892 km (0.06 R)
• M9: 5,408,711 km (0.079 R)
• M10: 6,022,511 km (0.074 R)
• M11: 7,158,258 km (0.091 R)
• M12: 8,592,602 km (0.09 R)
• M13: 9,156,138 km (0.07 R)
• M14: 12,145,552 km (0.095 R)
• M15: 12,984,198 km (0.102 R)
• M16: 14,268,346 km (0.105 R)
• M17: 16,325,616 km (0.057 R)
• M18: 17,346,920 km (0.114 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 581.8

Radius: 4.8

Gravity: 25.25 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 7.59 AU - 7.63 AU

Year: 13999 Days

Day: 22.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 46,291,069 km

• M1: 59,839 km (0.066 R)
• M2: 493,523 km (0.041 R)
• M3: 1,936,694 km (0.096 R)
• M4: 2,231,551 km (0.119 R)
• M5: 3,691,477 km (0.108 R)
• M6: 3,913,779 km (0.109 R)
• M7: 4,204,149 km (0.063 R)
• M8: 4,415,980 km (0.11 R)
• M9: 5,765,352 km (0.036 R)
• M10: 6,984,126 km (0.096 R)
• M11: 7,810,804 km (0.112 R)
• M12: 8,271,117 km (0.073 R)
• M13: 10,791,691 km (0.086 R)
• M14: 11,893,031 km (0.105 R)
• M15: 13,323,934 km (0.099 R)
• M16: 14,249,048 km (0.106 R)
• M17: 18,620,597 km (0.038 R)
• M18: 20,369,994 km (0.094 R)
• M19: 23,808,800 km (0.097 R)
• M20: 34,909,411 km (0.089 R)
• M21: 43,531,335 km (0.097 R)
• M22: 44,972,261 km (0.075 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 105.1

Radius: 6.5

Gravity: 2.49 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 9.95 AU - 11.99 AU

Year: 24229 Days

Day: 21.1 Hours

Environment

Temp: -236 °C

Axial Tilt: 161 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 46,291,069 km

• M1: 199,713 km (0.06 R)
• M2: 418,276 km (0.117 R)
• M3: 865,274 km (0.115 R)
• M4: 1,353,562 km (0.091 R)
• M5: 2,950,519 km (0.115 R)
• M6: 4,319,938 km (0.118 R)
• M7: 5,753,833 km (0.05 R)
• M8: 6,691,513 km (0.083 R)
• M9: 6,999,535 km (0.096 R)
• M10: 9,913,252 km (0.084 R)
• M11: 10,364,739 km (0.095 R)
• M12: 10,987,814 km (0.109 R)
• M13: 14,674,953 km (0.09 R)
• M14: 19,188,470 km (0.088 R)
• M15: 22,691,753 km (0.086 R)
• M16: 28,459,649 km (0.044 R)
• M17: 29,781,795 km (0.099 R)
• M18: 30,301,049 km (0.027 R)
• M19: 32,220,389 km (0.091 R)
• M20: 38,095,995 km (0.064 R)
• M21: 39,825,646 km (0.082 R)
• M22: 43,573,521 km (0.072 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 382 - 17,653 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit