🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 949.7

Radius: 9.9

Gravity: 9.69 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.6 AU - 0.72 AU

Year: 358 Days

Day: 13.2 Hours

Environment

Temp: -165 °C

Axial Tilt: 158.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 50,194,370 km

• M1: 123,119 km (0.113 R)
• M2: 467,793 km (0.09 R)
• M3: 795,262 km (0.074 R)
• M4: 1,136,345 km (0.104 R)
• M5: 1,807,890 km (0.097 R)
• M6: 2,433,209 km (0.059 R)
• M7: 3,085,007 km (0.119 R)
• M8: 3,440,452 km (0.108 R)
• M9: 4,220,904 km (0.118 R)
• M10: 4,854,002 km (0.109 R)
• M11: 5,369,516 km (0.053 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 224.4

Radius: 13.7

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.68 AU - 0.72 AU

Year: 391 Days

Day: 7.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 50,194,370 km

• M1: 175,179 km (0.099 R)
• M2: 774,917 km (0.109 R)
• M3: 1,416,542 km (0.12 R)
• M4: 2,180,987 km (0.117 R)
• M5: 3,226,826 km (0.05 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 239.9

Radius: 14.2

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.66 AU - 1.02 AU

Year: 513 Days

Day: 7.6 Hours

Environment

Temp: -169 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 50,194,370 km

• M1: 176,525 km (0.116 R)
• M2: 651,798 km (0.041 R)
• M3: 1,251,985 km (0.086 R)
• M4: 1,756,728 km (0.084 R)
• M5: 2,357,064 km (0.089 R)
• M6: 2,924,638 km (0.064 R)
• M7: 3,439,255 km (0.086 R)
• M8: 4,520,548 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 930.3

Radius: 9.3

Gravity: 10.76 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 2.73 AU - 3.79 AU

Year: 3925 Days

Day: 14.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 50,194,370 km

• M1: 164,558 km (0.11 R)
• M2: 553,213 km (0.095 R)
• M3: 904,020 km (0.1 R)
• M4: 1,269,338 km (0.082 R)
• M5: 1,695,393 km (0.102 R)
• M6: 2,646,835 km (0.067 R)
• M7: 3,309,105 km (0.115 R)
• M8: 3,875,034 km (0.103 R)
• M9: 4,986,845 km (0.088 R)
• M10: 5,336,605 km (0.088 R)
• M11: 6,611,927 km (0.076 R)
• M12: 7,202,240 km (0.054 R)
• M13: 7,649,986 km (0.08 R)
• M14: 8,525,583 km (0.071 R)
• M15: 10,915,708 km (0.096 R)
• M16: 12,507,579 km (0.086 R)
• M17: 12,853,599 km (0.102 R)
• M18: 14,463,571 km (0.091 R)
• M19: 15,121,502 km (0.084 R)
• M20: 16,145,500 km (0.1 R)
• M21: 18,458,283 km (0.087 R)
• M22: 20,433,723 km (0.108 R)
• M23: 21,192,034 km (0.061 R)
• M24: 23,133,067 km (0.074 R)
• M25: 23,655,163 km (0.098 R)
• M26: 25,268,277 km (0.106 R)
• M27: 26,061,595 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 24.6

Radius: 10.3

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 2.83 AU - 3.79 AU

Year: 4016 Days

Day: 11 Hours

Environment

Temp: -209 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 50,194,370 km

• M1: 128,205 km (0.106 R)
• M2: 802,293 km (0.069 R)
• M3: 1,313,619 km (0.064 R)
• M4: 1,657,544 km (0.084 R)
• M5: 2,610,632 km (0.118 R)
• M6: 2,987,021 km (0.112 R)
• M7: 3,792,007 km (0.118 R)
• M8: 4,356,739 km (0.084 R)
• M9: 5,521,657 km (0.098 R)
• M10: 6,146,528 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 908.3

Radius: 14.9

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 3.93 AU - 4.89 AU

Year: 6176 Days

Day: 14.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 50,194,370 km

• M1: 185,352 km (0.105 R)
• M2: 717,322 km (0.113 R)
• M3: 1,211,444 km (0.108 R)
• M4: 2,094,669 km (0.053 R)
• M5: 2,960,841 km (0.103 R)
• M6: 4,440,962 km (0.099 R)
• M7: 4,907,259 km (0.085 R)
• M8: 6,103,294 km (0.116 R)
• M9: 7,754,705 km (0.042 R)
• M10: 8,271,565 km (0.091 R)
• M11: 9,962,171 km (0.1 R)
• M12: 10,864,695 km (0.077 R)
• M13: 11,462,488 km (0.101 R)
• M14: 13,558,653 km (0.1 R)
• M15: 16,282,382 km (0.1 R)
• M16: 16,802,234 km (0.046 R)
• M17: 17,602,882 km (0.1 R)
• M18: 20,232,813 km (0.115 R)
• M19: 31,549,443 km (0.107 R)
• M20: 33,494,215 km (0.065 R)
• M21: 36,615,126 km (0.055 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 107.1

Radius: 8.5

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 4.16 AU - 5.34 AU

Year: 6904 Days

Day: 9.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 125.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 50,194,370 km

• M1: 106,065 km (0.119 R)
• M2: 585,077 km (0.064 R)
• M3: 995,873 km (0.031 R)
• M4: 1,873,863 km (0.094 R)
• M5: 2,162,437 km (0.025 R)
• M6: 4,164,057 km (0.12 R)
• M7: 5,291,875 km (0.104 R)
• M8: 6,086,539 km (0.097 R)
• M9: 6,386,931 km (0.072 R)
• M10: 6,754,643 km (0.111 R)
• M11: 7,256,694 km (0.097 R)
• M12: 7,815,292 km (0.103 R)
• M13: 8,469,334 km (0.055 R)
• M14: 9,088,519 km (0.113 R)
• M15: 9,481,663 km (0.095 R)
• M16: 10,378,801 km (0.056 R)
• M17: 11,998,048 km (0.108 R)
• M18: 14,781,616 km (0.109 R)
• M19: 15,126,290 km (0.117 R)
• M20: 17,254,319 km (0.111 R)
• M21: 18,875,063 km (0.104 R)
• M22: 19,751,856 km (0.054 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 481.9

Radius: 7.5

Gravity: 8.57 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 6.15 AU - 8.17 AU

Year: 12776 Days

Day: 18.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 50,194,370 km

• M1: 101,577 km (0.107 R)
• M2: 361,728 km (0.109 R)
• M3: 735,274 km (0.044 R)
• M4: 1,079,349 km (0.088 R)
• M5: 1,528,741 km (0.108 R)
• M6: 3,065,260 km (0.083 R)
• M7: 3,299,680 km (0.103 R)
• M8: 3,648,393 km (0.087 R)
• M9: 5,228,745 km (0.092 R)
• M10: 6,060,060 km (0.069 R)
• M11: 6,469,360 km (0.116 R)
• M12: 7,594,486 km (0.086 R)
• M13: 9,225,850 km (0.071 R)
• M14: 10,969,264 km (0.113 R)
• M15: 13,350,413 km (0.111 R)
• M16: 18,793,382 km (0.114 R)
• M17: 22,435,492 km (0.08 R)
• M18: 23,504,967 km (0.055 R)
• M19: 25,457,518 km (0.088 R)
• M20: 28,123,652 km (0.08 R)
• M21: 30,000,955 km (0.087 R)
• M22: 31,188,613 km (0.077 R)
• M23: 33,198,909 km (0.057 R)
• M24: 36,861,065 km (0.072 R)
• M25: 39,233,687 km (0.082 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 543 - 11,942 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit