🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 819.7

Radius: 9.9

Gravity: 8.36 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.68 AU - 1.1 AU

Year: 580 Days

Day: 8.7 Hours

Environment

Temp: -180 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 79,977,944 km

• M1: 123,119 km (0.12 R)
• M2: 621,280 km (0.092 R)
• M3: 1,277,715 km (0.059 R)
• M4: 1,910,066 km (0.089 R)
• M5: 2,358,111 km (0.088 R)
• M6: 2,728,216 km (0.071 R)
• M7: 3,198,552 km (0.091 R)
• M8: 4,875,694 km (0.097 R)
• M9: 5,848,230 km (0.113 R)
• M10: 7,531,505 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 459.8

Radius: 13.4

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.82 AU - 1.26 AU

Year: 732 Days

Day: 7.6 Hours

Environment

Temp: -171 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 79,977,944 km

• M1: 169,644 km (0.111 R)
• M2: 661,372 km (0.115 R)
• M3: 1,341,444 km (0.077 R)
• M4: 1,978,581 km (0.043 R)
• M5: 2,494,096 km (0.047 R)
• M6: 3,087,102 km (0.084 R)
• M7: 3,612,340 km (0.061 R)
• M8: 4,716,372 km (0.061 R)
• M9: 6,166,723 km (0.102 R)
• M10: 6,840,063 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.9

Radius: 8.7

Gravity: 9.88 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.47 AU - 1.71 AU

Year: 1384 Days

Day: 6.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 143.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 79,977,944 km

• M1: 108,159 km (0.057 R)
• M2: 389,553 km (0.119 R)
• M3: 798,853 km (0.09 R)
• M4: 1,208,751 km (0.079 R)
• M5: 1,565,691 km (0.066 R)
• M6: 1,971,102 km (0.1 R)
• M7: 2,770,852 km (0.092 R)
• M8: 3,125,100 km (0.097 R)
• M9: 4,065,023 km (0.053 R)
• M10: 4,658,627 km (0.091 R)
• M11: 5,017,213 km (0.11 R)
• M12: 5,834,915 km (0.109 R)
• M13: 6,991,606 km (0.101 R)
• M14: 7,624,106 km (0.079 R)
• M15: 10,474,095 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 63.8

Radius: 8.2

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 2.18 AU - 2.24 AU

Year: 2268 Days

Day: 14.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 79,977,944 km

• M1: 102,026 km (0.104 R)
• M2: 401,969 km (0.117 R)
• M3: 727,494 km (0.034 R)
• M4: 1,153,998 km (0.085 R)
• M5: 1,473,240 km (0.09 R)
• M6: 1,957,787 km (0.077 R)
• M7: 2,734,200 km (0.104 R)
• M8: 3,990,822 km (0.042 R)
• M9: 4,746,591 km (0.095 R)
• M10: 6,477,887 km (0.086 R)
• M11: 7,564,865 km (0.104 R)
• M12: 8,032,209 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211

Radius: 14

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 2.52 AU - 2.82 AU

Year: 3011 Days

Day: 7.2 Hours

Environment

Temp: -217 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 79,977,944 km

• M1: 174,431 km (0.034 R)
• M2: 671,994 km (0.081 R)
• M3: 1,171,800 km (0.083 R)
• M4: 1,833,771 km (0.1 R)
• M5: 2,325,648 km (0.038 R)
• M6: 3,110,439 km (0.109 R)
• M7: 3,870,845 km (0.076 R)
• M8: 5,019,009 km (0.116 R)
• M9: 5,718,379 km (0.112 R)
• M10: 6,187,966 km (0.104 R)
• M11: 6,863,102 km (0.079 R)
• M12: 7,367,246 km (0.069 R)
• M13: 8,097,134 km (0.082 R)
• M14: 9,636,646 km (0.086 R)
• M15: 10,684,729 km (0.111 R)
• M16: 11,510,359 km (0.095 R)
• M17: 12,071,501 km (0.072 R)
• M18: 13,575,109 km (0.092 R)
• M19: 14,372,167 km (0.058 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 853.1

Radius: 13.4

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 2.72 AU - 4.4 AU

Year: 4636 Days

Day: 6.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 79,977,944 km

• M1: 166,802 km (0.029 R)
• M2: 664,215 km (0.119 R)
• M3: 1,192,445 km (0.11 R)
• M4: 1,624,184 km (0.063 R)
• M5: 2,643,843 km (0.053 R)
• M6: 4,487,039 km (0.118 R)
• M7: 5,140,632 km (0.118 R)
• M8: 5,886,975 km (0.104 R)
• M9: 6,318,116 km (0.1 R)
• M10: 7,849,699 km (0.081 R)
• M11: 8,761,648 km (0.084 R)
• M12: 10,216,787 km (0.104 R)
• M13: 11,682,995 km (0.102 R)
• M14: 12,567,268 km (0.116 R)
• M15: 13,233,278 km (0.038 R)
• M16: 13,976,779 km (0.103 R)
• M17: 19,778,634 km (0.117 R)
• M18: 21,827,825 km (0.072 R)
• M19: 22,342,891 km (0.057 R)
• M20: 25,850,811 km (0.107 R)
• M21: 26,594,013 km (0.103 R)
• M22: 28,558,234 km (0.083 R)
• M23: 29,263,438 km (0.071 R)
• M24: 30,434,490 km (0.083 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 177

Radius: 13

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 3.91 AU - 4.17 AU

Year: 5605 Days

Day: 5.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 79,977,944 km

• M1: 163,361 km (0.089 R)
• M2: 653,593 km (0.111 R)
• M3: 1,810,433 km (0.118 R)
• M4: 2,327,144 km (0.105 R)
• M5: 3,797,542 km (0.111 R)
• M6: 4,434,230 km (0.111 R)
• M7: 4,905,165 km (0.101 R)
• M8: 6,383,042 km (0.115 R)
• M9: 7,752,311 km (0.12 R)
• M10: 10,547,996 km (0.087 R)
• M11: 17,761,905 km (0.101 R)
• M12: 18,609,826 km (0.072 R)
• M13: 19,072,831 km (0.117 R)
• M14: 20,143,054 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 609.4

Radius: 4.8

Gravity: 26.45 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 8.8 AU - 11.82 AU

Year: 22851 Days

Day: 15.5 Hours

Environment

Temp: -243 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 79,977,944 km

• M1: 75,248 km (0.064 R)
• M2: 283,787 km (0.118 R)
• M3: 510,428 km (0.088 R)
• M4: 922,271 km (0.116 R)
• M5: 1,546,992 km (0.116 R)
• M6: 2,678,400 km (0.109 R)
• M7: 3,256,596 km (0.114 R)
• M8: 5,136,144 km (0.077 R)
• M9: 5,854,662 km (0.079 R)
• M10: 8,095,040 km (0.069 R)
• M11: 14,704,723 km (0.06 R)
• M12: 15,572,241 km (0.104 R)
• M13: 20,911,688 km (0.095 R)
• M14: 26,657,443 km (0.056 R)
• M15: 26,888,422 km (0.086 R)
• M16: 29,271,815 km (0.064 R)
• M17: 33,506,183 km (0.046 R)
• M18: 36,544,965 km (0.078 R)
• M19: 41,131,486 km (0.115 R)
• M20: 42,217,716 km (0.03 R)
• M21: 47,936,842 km (0.089 R)
• M22: 48,449,814 km (0.102 R)
• M23: 51,069,721 km (0.093 R)
• M24: 52,686,126 km (0.117 R)
• M25: 55,080,590 km (0.044 R)
• M26: 57,162,693 km (0.114 R)
• M27: 68,796,171 km (0.042 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 297 - 14,286 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit