🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.29

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.54 AU - 0.54 AU

Year: 260 Days

Day: 23.8 Hours

Environment

Temp: -121 °C

Axial Tilt: 41.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 27,547,452 km

• M1: 52,658 km (0.036 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 964.9

Radius: 14.1

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.8 AU - 1 AU

Year: 560 Days

Day: 8.1 Hours

Environment

Temp: -156 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 27,547,452 km

• M1: 175,329 km (0.096 R)
• M2: 728,990 km (0.069 R)
• M3: 1,250,489 km (0.114 R)
• M4: 1,722,919 km (0.075 R)
• M5: 2,346,443 km (0.107 R)
• M6: 3,254,053 km (0.09 R)
• M7: 3,700,004 km (0.106 R)
• M8: 4,157,325 km (0.086 R)
• M9: 4,733,576 km (0.116 R)
• M10: 6,810,742 km (0.033 R)
• M11: 7,524,922 km (0.046 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 360.5

Radius: 8.5

Gravity: 4.99 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.98 AU - 1.08 AU

Year: 686 Days

Day: 10 Hours

Environment

Temp: -150 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 27,547,452 km

• M1: 105,766 km (0.112 R)
• M2: 455,675 km (0.111 R)
• M3: 755,320 km (0.065 R)
• M4: 1,066,034 km (0.102 R)
• M5: 1,692,850 km (0.082 R)
• M6: 2,155,705 km (0.119 R)
• M7: 3,120,761 km (0.111 R)
• M8: 3,432,822 km (0.072 R)
• M9: 3,940,109 km (0.09 R)
• M10: 4,334,598 km (0.119 R)
• M11: 4,755,118 km (0.103 R)
• M12: 5,522,256 km (0.112 R)
• M13: 6,238,082 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 14.4

Radius: 8.1

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.09 AU - 1.13 AU

Year: 767 Days

Day: 7.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 27,547,452 km

• M1: 101,128 km (0.088 R)
• M2: 563,386 km (0.104 R)
• M3: 1,009,187 km (0.072 R)
• M4: 1,325,587 km (0.057 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 700.9

Radius: 14.5

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.97 AU - 1.55 AU

Year: 928 Days

Day: 14 Hours

Environment

Temp: -160 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 27,547,452 km

• M1: 180,265 km (0.083 R)
• M2: 709,393 km (0.113 R)
• M3: 1,221,915 km (0.111 R)
• M4: 1,806,095 km (0.114 R)
• M5: 2,680,644 km (0.114 R)
• M6: 3,182,695 km (0.09 R)
• M7: 3,930,086 km (0.029 R)
• M8: 5,156,339 km (0.114 R)
• M9: 5,717,331 km (0.074 R)
• M10: 6,492,398 km (0.087 R)
• M11: 7,101,261 km (0.112 R)
• M12: 8,486,687 km (0.089 R)
• M13: 9,132,950 km (0.08 R)
• M14: 9,782,953 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 923.8

Radius: 14

Gravity: 4.71 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 2.22 AU - 2.5 AU

Year: 2378 Days

Day: 11.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 62.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 27,547,452 km

• M1: 174,581 km (0.11 R)
• M2: 959,371 km (0.101 R)
• M3: 1,542,952 km (0.113 R)
• M4: 2,072,678 km (0.07 R)
• M5: 2,516,386 km (0.06 R)
• M6: 3,436,712 km (0.08 R)
• M7: 3,985,736 km (0.063 R)
• M8: 4,794,013 km (0.084 R)
• M9: 5,942,177 km (0.055 R)
• M10: 7,541,229 km (0.084 R)
• M11: 9,555,863 km (0.087 R)
• M12: 11,004,719 km (0.1 R)
• M13: 11,573,789 km (0.06 R)
• M14: 12,162,606 km (0.052 R)
• M15: 13,083,381 km (0.035 R)
• M16: 15,014,390 km (0.103 R)
• M17: 16,490,622 km (0.072 R)
• M18: 17,399,878 km (0.067 R)
• M19: 18,682,829 km (0.055 R)
• M20: 19,908,634 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 926.3

Radius: 14.8

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 4.37 AU - 5.33 AU

Year: 7007 Days

Day: 7.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 27,547,452 km

• M1: 184,005 km (0.097 R)
• M2: 664,663 km (0.068 R)
• M3: 1,231,190 km (0.102 R)
• M4: 1,969,007 km (0.069 R)
• M5: 3,425,193 km (0.118 R)
• M6: 4,236,313 km (0.042 R)
• M7: 4,759,456 km (0.112 R)
• M8: 5,903,730 km (0.088 R)
• M9: 6,630,776 km (0.119 R)
• M10: 8,391,094 km (0.109 R)
• M11: 9,131,454 km (0.099 R)
• M12: 10,544,256 km (0.104 R)
• M13: 11,303,316 km (0.026 R)
• M14: 12,152,882 km (0.074 R)
• M15: 13,919,783 km (0.098 R)
• M16: 16,512,763 km (0.1 R)
• M17: 18,822,254 km (0.087 R)
• M18: 22,390,613 km (0.037 R)
• M19: 25,035,802 km (0.086 R)
• M20: 27,978,243 km (0.097 R)
• M21: 35,205,615 km (0.103 R)
• M22: 36,103,501 km (0.066 R)
• M23: 38,651,751 km (0.057 R)
• M24: 39,127,622 km (0.099 R)
• M25: 41,194,018 km (0.052 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 569.4

Radius: 3.9

Gravity: 37.44 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 6.66 AU - 8 AU

Year: 13019 Days

Day: 21.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 27,547,452 km

• M1: 49,816 km (0.105 R)
• M2: 208,839 km (0.092 R)
• M3: 517,758 km (0.107 R)
• M4: 718,818 km (0.063 R)
• M5: 907,610 km (0.087 R)
• M6: 1,227,002 km (0.1 R)
• M7: 2,812,141 km (0.061 R)
• M8: 3,233,109 km (0.053 R)
• M9: 3,667,990 km (0.117 R)
• M10: 3,913,480 km (0.082 R)
• M11: 4,054,401 km (0.105 R)
• M12: 4,590,560 km (0.097 R)
• M13: 5,446,260 km (0.109 R)
• M14: 6,599,510 km (0.055 R)
• M15: 8,131,991 km (0.084 R)
• M16: 8,361,923 km (0.088 R)
• M17: 10,851,680 km (0.11 R)
• M18: 12,234,114 km (0.061 R)
• M19: 16,854,743 km (0.097 R)
• M20: 18,541,758 km (0.052 R)
• M21: 19,020,771 km (0.115 R)
• M22: 20,676,819 km (0.12 R)
• M23: 21,539,849 km (0.057 R)
• M24: 27,950,118 km (0.071 R)
• M25: 29,218,110 km (0.033 R)
• M26: 32,902,107 km (0.107 R)
• M27: 35,036,420 km (0.088 R)
• M28: 39,841,503 km (0.076 R)
• M29: 41,581,027 km (0.117 R)
• M30: 42,400,674 km (0.061 R)
• M31: 50,114,688 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 62.7

Radius: 3

Gravity: 6.97 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 6.41 AU - 9.27 AU

Year: 14401 Days

Day: 20.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 27,547,452 km

• M1: 37,250 km (0.119 R)
• M2: 143,764 km (0.078 R)
• M3: 244,443 km (0.102 R)
• M4: 408,253 km (0.117 R)
• M5: 504,294 km (0.079 R)
• M6: 654,191 km (0.025 R)
• M7: 833,260 km (0.093 R)
• M8: 1,558,810 km (0.09 R)
• M9: 2,461,483 km (0.099 R)
• M10: 2,803,314 km (0.04 R)
• M11: 5,460,621 km (0.112 R)
• M12: 6,625,540 km (0.12 R)
• M13: 7,385,048 km (0.088 R)
• M14: 7,592,242 km (0.094 R)
• M15: 8,535,606 km (0.077 R)
• M16: 9,272,525 km (0.083 R)
• M17: 13,042,092 km (0.036 R)
• M18: 20,699,857 km (0.086 R)
• M19: 21,599,090 km (0.094 R)
• M20: 22,380,141 km (0.116 R)
• M21: 22,813,974 km (0.061 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 436 - 12,310 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit