🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.34

Radius: 0.65

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.6 AU - 0.74 AU

Year: 354 Days

Day: 37 Hours

Environment

Temp: -136 °C

Axial Tilt: 38.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 97,781,622 km

• M1: 17,952 km (0.102 R)
• M2: 69,563 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 401.4

Radius: 10.2

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.76 AU - 1.2 AU

Year: 626 Days

Day: 10.9 Hours

Environment

Temp: -160 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 97,781,622 km

• M1: 126,859 km (0.062 R)
• M2: 520,601 km (0.065 R)
• M3: 851,810 km (0.116 R)
• M4: 1,349,074 km (0.063 R)
• M5: 1,774,979 km (0.11 R)
• M6: 2,373,969 km (0.061 R)
• M7: 2,837,572 km (0.066 R)
• M8: 3,230,267 km (0.045 R)
• M9: 3,646,149 km (0.108 R)
• M10: 3,974,666 km (0.115 R)
• M11: 4,294,356 km (0.076 R)
• M12: 4,938,675 km (0.068 R)
• M13: 5,926,320 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 193.9

Radius: 13.3

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.92 AU - 1.08 AU

Year: 646 Days

Day: 9.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 97,781,622 km

• M1: 165,455 km (0.067 R)
• M2: 588,518 km (0.089 R)
• M3: 1,245,103 km (0.103 R)
• M4: 1,824,496 km (0.096 R)
• M5: 2,393,716 km (0.113 R)
• M6: 2,987,469 km (0.094 R)
• M7: 4,300,490 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 471.3

Radius: 11.8

Gravity: 3.38 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.85 AU - 1.15 AU

Year: 646 Days

Day: 11.3 Hours

Environment

Temp: -169 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 97,781,622 km

• M1: 146,756 km (0.079 R)
• M2: 602,730 km (0.087 R)
• M3: 984,653 km (0.117 R)
• M4: 1,651,860 km (0.117 R)
• M5: 2,814,385 km (0.049 R)
• M6: 3,902,111 km (0.075 R)
• M7: 4,414,932 km (0.117 R)
• M8: 4,812,863 km (0.12 R)
• M9: 5,506,847 km (0.114 R)
• M10: 6,418,646 km (0.045 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 67.1

Radius: 9.6

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.23 AU - 1.23 AU

Year: 881 Days

Day: 8.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 97,781,622 km

• M1: 121,025 km (0.087 R)
• M2: 467,194 km (0.113 R)
• M3: 890,855 km (0.059 R)
• M4: 1,376,300 km (0.108 R)
• M5: 2,193,404 km (0.097 R)
• M6: 2,854,028 km (0.112 R)
• M7: 3,872,042 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 24

Radius: 10.9

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 2.3 AU - 2.36 AU

Year: 2296 Days

Day: 5.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 97,781,622 km

• M1: 137,929 km (0.094 R)
• M2: 1,128,566 km (0.102 R)
• M3: 5,560,403 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 395.6

Radius: 10.9

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 2.15 AU - 2.81 AU

Year: 2522 Days

Day: 5.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 76.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 97,781,622 km

• M1: 135,536 km (0.054 R)
• M2: 512,971 km (0.043 R)
• M3: 897,438 km (0.113 R)
• M4: 1,272,779 km (0.067 R)
• M5: 2,218,686 km (0.093 R)
• M6: 3,828,060 km (0.104 R)
• M7: 4,276,554 km (0.111 R)
• M8: 6,180,337 km (0.084 R)
• M9: 6,934,011 km (0.099 R)
• M10: 9,431,697 km (0.115 R)
• M11: 12,356,335 km (0.088 R)
• M12: 13,722,313 km (0.053 R)
• M13: 15,094,724 km (0.086 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 988.1

Radius: 10.1

Gravity: 9.69 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 3.1 AU - 3.78 AU

Year: 4120 Days

Day: 10 Hours

Environment

Temp: -212 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 97,781,622 km

• M1: 125,662 km (0.091 R)
• M2: 513,121 km (0.07 R)
• M3: 1,427,912 km (0.063 R)
• M4: 1,790,088 km (0.051 R)
• M5: 2,617,514 km (0.102 R)
• M6: 3,791,259 km (0.119 R)
• M7: 4,621,527 km (0.112 R)
• M8: 6,415,355 km (0.089 R)
• M9: 6,836,772 km (0.056 R)
• M10: 7,345,704 km (0.099 R)
• M11: 9,849,673 km (0.063 R)
• M12: 10,722,577 km (0.091 R)
• M13: 12,522,090 km (0.056 R)
• M14: 13,078,594 km (0.068 R)
• M15: 17,950,099 km (0.104 R)
• M16: 18,527,846 km (0.065 R)
• M17: 19,652,822 km (0.106 R)
• M18: 22,184,766 km (0.083 R)
• M19: 25,085,020 km (0.082 R)
• M20: 25,404,411 km (0.061 R)
• M21: 27,041,760 km (0.117 R)
• M22: 28,229,118 km (0.101 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 890.7

Radius: 8.3

Gravity: 12.93 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 3.67 AU - 3.95 AU

Year: 4802 Days

Day: 14.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 97,781,622 km

• M1: 144,661 km (0.094 R)
• M2: 443,707 km (0.09 R)
• M3: 1,102,686 km (0.118 R)
• M4: 2,227,512 km (0.06 R)
• M5: 2,592,830 km (0.086 R)
• M6: 5,251,334 km (0.108 R)
• M7: 5,932,304 km (0.081 R)
• M8: 11,071,589 km (0.111 R)
• M9: 12,904,462 km (0.04 R)
• M10: 15,395,416 km (0.12 R)
• M11: 18,720,229 km (0.096 R)
• M12: 20,160,407 km (0.101 R)
• M13: 22,798,865 km (0.112 R)
• M14: 24,922,856 km (0.05 R)
• M15: 29,833,555 km (0.119 R)
• M16: 30,292,821 km (0.047 R)

Planet 10 - Ice Giant

Semi-Major Axis: 11.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 984.9

Radius: 5.9

Gravity: 28.29 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 9.83 AU - 12.63 AU

Year: 24299 Days

Day: 19.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 97,781,622 km

• M1: 73,303 km (0.116 R)
• M2: 259,702 km (0.101 R)
• M3: 754,123 km (0.054 R)
• M4: 1,581,848 km (0.106 R)
• M5: 2,456,397 km (0.071 R)
• M6: 2,764,569 km (0.052 R)
• M7: 3,779,740 km (0.115 R)
• M8: 4,863,876 km (0.115 R)
• M9: 5,225,902 km (0.107 R)
• M10: 5,562,797 km (0.108 R)
• M11: 9,277,162 km (0.115 R)
• M12: 13,497,318 km (0.102 R)
• M13: 16,241,093 km (0.078 R)
• M14: 19,137,457 km (0.079 R)
• M15: 20,038,784 km (0.082 R)
• M16: 20,551,456 km (0.111 R)
• M17: 20,759,098 km (0.083 R)
• M18: 30,931,753 km (0.117 R)
• M19: 31,204,321 km (0.087 R)
• M20: 32,451,369 km (0.109 R)
• M21: 35,340,552 km (0.072 R)
• M22: 48,247,408 km (0.11 R)
• M23: 64,636,602 km (0.065 R)
• M24: 96,323,376 km (0.054 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 323 - 15,205 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit