🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 752.2

Radius: 14.7

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.73 AU - 0.99 AU

Year: 551 Days

Day: 10.7 Hours

Environment

Temp: -161 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 50,324,977 km

• M1: 182,809 km (0.117 R)
• M2: 684,859 km (0.12 R)
• M3: 1,203,515 km (0.066 R)
• M4: 1,704,219 km (0.114 R)
• M5: 2,289,595 km (0.103 R)
• M6: 2,906,836 km (0.103 R)
• M7: 3,807,116 km (0.109 R)
• M8: 4,271,917 km (0.066 R)
• M9: 4,838,444 km (0.113 R)
• M10: 6,586,794 km (0.03 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 89

Radius: 13.1

Gravity: 0.52 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.68 AU - 1.12 AU

Year: 589 Days

Day: 7.7 Hours

Environment

Temp: -176 °C

Axial Tilt: 47.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 50,324,977 km

• M1: 162,912 km (0.063 R)
• M2: 620,831 km (0.081 R)
• M3: 1,141,282 km (0.116 R)
• M4: 1,609,972 km (0.078 R)
• M5: 2,573,831 km (0.088 R)
• M6: 3,053,442 km (0.103 R)
• M7: 3,541,430 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 678.7

Radius: 10.9

Gravity: 5.71 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.88 AU - 1.18 AU

Year: 722 Days

Day: 9.2 Hours

Environment

Temp: -175 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 50,324,977 km

• M1: 135,536 km (0.107 R)
• M2: 551,567 km (0.063 R)
• M3: 1,411,157 km (0.063 R)
• M4: 1,948,512 km (0.118 R)
• M5: 2,941,842 km (0.11 R)
• M6: 3,370,290 km (0.062 R)
• M7: 4,275,358 km (0.053 R)
• M8: 5,537,216 km (0.083 R)
• M9: 6,625,091 km (0.067 R)
• M10: 7,120,260 km (0.098 R)
• M11: 7,849,999 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 620.2

Radius: 12

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.86 AU - 1.36 AU

Year: 807 Days

Day: 12.5 Hours

Environment

Temp: -175 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 50,324,977 km

• M1: 149,299 km (0.103 R)
• M2: 553,063 km (0.072 R)
• M3: 983,157 km (0.081 R)
• M4: 1,423,723 km (0.095 R)
• M5: 2,318,468 km (0.092 R)
• M6: 2,743,924 km (0.12 R)
• M7: 3,612,489 km (0.072 R)
• M8: 4,065,621 km (0.047 R)
• M9: 4,606,118 km (0.076 R)
• M10: 5,104,728 km (0.046 R)
• M11: 6,149,968 km (0.099 R)
• M12: 6,563,607 km (0.119 R)
• M13: 7,680,055 km (0.109 R)
• M14: 8,534,110 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 861.1

Radius: 10.1

Gravity: 8.44 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.21 AU - 1.51 AU

Year: 1095 Days

Day: 14 Hours

Environment

Temp: -196 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 50,324,977 km

• M1: 125,662 km (0.119 R)
• M2: 535,112 km (0.084 R)
• M3: 853,007 km (0.032 R)
• M4: 1,243,607 km (0.094 R)
• M5: 2,032,137 km (0.094 R)
• M6: 2,758,136 km (0.06 R)
• M7: 3,210,520 km (0.09 R)
• M8: 6,213,099 km (0.065 R)
• M9: 10,295,475 km (0.046 R)
• M10: 11,149,828 km (0.03 R)
• M11: 11,594,284 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300.7

Radius: 12.1

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.91 AU - 2.69 AU

Year: 2408 Days

Day: 5.3 Hours

Environment

Temp: -195 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 50,324,977 km

• M1: 150,645 km (0.101 R)
• M2: 713,283 km (0.052 R)
• M3: 1,322,595 km (0.09 R)
• M4: 1,989,951 km (0.042 R)
• M5: 2,483,773 km (0.092 R)
• M6: 2,971,762 km (0.095 R)
• M7: 3,507,023 km (0.052 R)
• M8: 4,914,290 km (0.109 R)
• M9: 5,422,025 km (0.056 R)
• M10: 6,543,261 km (0.069 R)
• M11: 6,975,450 km (0.106 R)
• M12: 8,746,838 km (0.098 R)
• M13: 9,335,506 km (0.081 R)
• M14: 9,720,870 km (0.062 R)
• M15: 11,406,090 km (0.102 R)
• M16: 12,109,499 km (0.11 R)
• M17: 13,725,605 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 328.1

Radius: 11

Gravity: 2.71 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 3.37 AU - 3.39 AU

Year: 4289 Days

Day: 9.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 50,324,977 km

• M1: 136,732 km (0.026 R)
• M2: 484,099 km (0.099 R)
• M3: 977,173 km (0.103 R)
• M4: 1,503,309 km (0.12 R)
• M5: 2,422,588 km (0.112 R)
• M6: 3,186,135 km (0.092 R)
• M7: 3,624,607 km (0.057 R)
• M8: 4,020,443 km (0.056 R)
• M9: 6,425,827 km (0.085 R)
• M10: 7,099,017 km (0.077 R)
• M11: 8,347,561 km (0.118 R)
• M12: 10,349,779 km (0.081 R)
• M13: 11,028,654 km (0.117 R)
• M14: 11,609,692 km (0.06 R)
• M15: 12,386,853 km (0.04 R)
• M16: 13,429,850 km (0.078 R)
• M17: 13,853,511 km (0.102 R)
• M18: 14,286,148 km (0.114 R)
• M19: 15,638,363 km (0.108 R)
• M20: 16,425,547 km (0.086 R)
• M21: 19,181,888 km (0.096 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 21.8

Radius: 10.5

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 5.14 AU - 5.46 AU

Year: 8422 Days

Day: 8.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 50,324,977 km

• M1: 131,347 km (0.076 R)
• M2: 591,061 km (0.098 R)
• M3: 1,242,560 km (0.074 R)
• M4: 1,699,282 km (0.048 R)
• M5: 3,251,360 km (0.093 R)
• M6: 5,285,592 km (0.07 R)
• M7: 6,231,798 km (0.099 R)
• M8: 7,077,326 km (0.093 R)
• M9: 8,196,617 km (0.026 R)
• M10: 10,852,578 km (0.094 R)
• M11: 11,524,721 km (0.117 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 740.3

Radius: 6.4

Gravity: 18.07 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 4.77 AU - 7.39 AU

Year: 10348 Days

Day: 20 Hours

Environment

Temp: -217 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 50,324,977 km

• M1: 79,736 km (0.1 R)
• M2: 335,249 km (0.09 R)
• M3: 544,985 km (0.087 R)
• M4: 1,025,194 km (0.058 R)
• M5: 1,254,977 km (0.055 R)
• M6: 3,199,749 km (0.101 R)
• M7: 3,964,044 km (0.115 R)
• M8: 5,197,030 km (0.114 R)
• M9: 6,589,038 km (0.094 R)
• M10: 7,517,742 km (0.119 R)
• M11: 11,996,552 km (0.114 R)
• M12: 14,855,667 km (0.066 R)
• M13: 15,056,577 km (0.107 R)
• M14: 18,445,567 km (0.101 R)
• M15: 20,111,788 km (0.032 R)
• M16: 22,486,206 km (0.099 R)
• M17: 23,018,325 km (0.114 R)
• M18: 23,377,659 km (0.063 R)
• M19: 29,753,969 km (0.062 R)
• M20: 31,374,264 km (0.099 R)
• M21: 40,104,945 km (0.11 R)
• M22: 42,347,567 km (0.094 R)
• M23: 45,372,286 km (0.106 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 263 - 10,379 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit