🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 23.5

Radius: 11.8

Gravity: 0.17 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.55 AU - 0.61 AU

Year: 305 Days

Day: 7.9 Hours

Environment

Temp: -138 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 58,263,183 km

• M1: 146,756 km (0.092 R)
• M2: 554,260 km (0.083 R)
• M3: 1,327,980 km (0.07 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274

Radius: 8.6

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.76 AU - 1 AU

Year: 570 Days

Day: 9.8 Hours

Environment

Temp: -163 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 58,263,183 km

• M1: 106,962 km (0.097 R)
• M2: 374,892 km (0.069 R)
• M3: 687,701 km (0.107 R)
• M4: 1,001,707 km (0.068 R)
• M5: 1,304,344 km (0.114 R)
• M6: 1,760,767 km (0.112 R)
• M7: 2,050,987 km (0.062 R)
• M8: 2,528,653 km (0.071 R)
• M9: 3,078,575 km (0.115 R)
• M10: 3,562,374 km (0.062 R)
• M11: 4,135,184 km (0.097 R)
• M12: 4,499,006 km (0.101 R)
• M13: 4,972,932 km (0.049 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 374.6

Radius: 11.4

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.83 AU - 1.35 AU

Year: 786 Days

Day: 6.7 Hours

Environment

Temp: -189 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 58,263,183 km

• M1: 141,968 km (0.076 R)
• M2: 507,436 km (0.11 R)
• M3: 986,299 km (0.106 R)
• M4: 1,618,799 km (0.111 R)
• M5: 2,113,220 km (0.096 R)
• M6: 3,777,346 km (0.076 R)
• M7: 4,348,810 km (0.05 R)
• M8: 4,993,876 km (0.113 R)
• M9: 6,222,523 km (0.117 R)
• M10: 6,897,509 km (0.055 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 250.3

Radius: 14.6

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 1.11 AU - 1.57 AU

Year: 1071 Days

Day: 9.1 Hours

Environment

Temp: -186 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 58,263,183 km

• M1: 181,612 km (0.109 R)
• M2: 855,401 km (0.084 R)
• M3: 1,450,651 km (0.117 R)
• M4: 2,253,692 km (0.079 R)
• M5: 3,817,588 km (0.101 R)
• M6: 4,341,779 km (0.058 R)
• M7: 5,886,227 km (0.028 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 190.1

Radius: 13.1

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 1.89 AU - 2.69 AU

Year: 2392 Days

Day: 7.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 58,263,183 km

• M1: 163,211 km (0.106 R)
• M2: 605,722 km (0.113 R)
• M3: 1,381,088 km (0.107 R)
• M4: 2,055,176 km (0.034 R)
• M5: 2,628,734 km (0.048 R)
• M6: 3,705,539 km (0.042 R)
• M7: 4,920,573 km (0.1 R)
• M8: 5,738,126 km (0.119 R)
• M9: 7,384,749 km (0.087 R)
• M10: 8,234,465 km (0.051 R)
• M11: 8,798,150 km (0.111 R)
• M12: 9,267,438 km (0.107 R)
• M13: 11,729,819 km (0.087 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 650.8

Radius: 3.6

Gravity: 50.22 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 5.41 AU - 7.25 AU

Year: 10993 Days

Day: 24.7 Hours

Environment

Temp: -237 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 58,263,183 km

• M1: 44,730 km (0.061 R)
• M2: 157,527 km (0.079 R)
• M3: 299,944 km (0.072 R)
• M4: 476,768 km (0.1 R)
• M5: 773,271 km (0.025 R)
• M6: 1,110,615 km (0.087 R)
• M7: 1,345,334 km (0.07 R)
• M8: 1,642,136 km (0.094 R)
• M9: 2,269,400 km (0.03 R)
• M10: 2,443,382 km (0.111 R)
• M11: 2,668,078 km (0.044 R)
• M12: 2,862,106 km (0.116 R)
• M13: 3,326,907 km (0.093 R)
• M14: 3,786,621 km (0.058 R)
• M15: 5,801,106 km (0.056 R)
• M16: 6,313,180 km (0.039 R)
• M17: 9,041,396 km (0.107 R)
• M18: 9,429,752 km (0.076 R)
• M19: 11,766,321 km (0.107 R)
• M20: 12,884,715 km (0.096 R)
• M21: 14,201,176 km (0.079 R)
• M22: 16,162,853 km (0.107 R)
• M23: 16,446,940 km (0.118 R)
• M24: 17,245,044 km (0.086 R)
• M25: 18,684,026 km (0.114 R)
• M26: 18,918,296 km (0.083 R)
• M27: 19,472,706 km (0.12 R)
• M28: 19,956,356 km (0.077 R)
• M29: 20,696,716 km (0.099 R)
• M30: 24,488,423 km (0.061 R)
• M31: 24,863,017 km (0.084 R)
• M32: 25,623,722 km (0.108 R)
• M33: 27,291,439 km (0.09 R)
• M34: 29,239,353 km (0.099 R)
• M35: 36,968,476 km (0.038 R)
• M36: 47,968,557 km (0.077 R)
• M37: 49,741,591 km (0.095 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 856.1

Radius: 7.8

Gravity: 14.07 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 5.48 AU - 8.86 AU

Year: 13252 Days

Day: 15.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 58,263,183 km

• M1: 97,089 km (0.105 R)
• M2: 376,388 km (0.073 R)
• M3: 732,581 km (0.109 R)
• M4: 1,045,689 km (0.109 R)
• M5: 1,536,819 km (0.086 R)
• M6: 3,196,607 km (0.108 R)
• M7: 3,673,974 km (0.072 R)
• M8: 7,236,498 km (0.088 R)
• M9: 7,686,339 km (0.105 R)
• M10: 10,332,426 km (0.081 R)
• M11: 10,672,312 km (0.064 R)
• M12: 13,397,387 km (0.069 R)
• M13: 14,144,927 km (0.079 R)
• M14: 16,708,885 km (0.101 R)
• M15: 18,552,978 km (0.082 R)
• M16: 21,066,522 km (0.113 R)
• M17: 21,430,194 km (0.089 R)
• M18: 21,705,604 km (0.06 R)
• M19: 22,357,551 km (0.093 R)
• M20: 23,214,897 km (0.052 R)
• M21: 26,757,973 km (0.043 R)
• M22: 31,347,935 km (0.084 R)
• M23: 31,822,010 km (0.088 R)
• M24: 33,272,960 km (0.073 R)
• M25: 42,049,717 km (0.103 R)
• M26: 45,740,746 km (0.114 R)
• M27: 48,213,000 km (0.096 R)
• M28: 60,080,599 km (0.119 R)
• M29: 61,179,994 km (0.087 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 330.5

Radius: 4.2

Gravity: 18.74 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 8.91 AU - 9.51 AU

Year: 19293 Days

Day: 17.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 58,263,183 km

• M1: 52,210 km (0.037 R)
• M2: 386,112 km (0.06 R)
• M3: 751,281 km (0.112 R)
• M4: 994,975 km (0.039 R)
• M5: 2,182,483 km (0.106 R)
• M6: 2,463,428 km (0.067 R)
• M7: 2,700,840 km (0.077 R)
• M8: 3,097,424 km (0.101 R)
• M9: 6,984,874 km (0.057 R)
• M10: 7,284,968 km (0.045 R)
• M11: 8,332,003 km (0.084 R)
• M12: 10,495,637 km (0.099 R)
• M13: 11,292,844 km (0.06 R)
• M14: 21,870,012 km (0.068 R)
• M15: 23,640,652 km (0.063 R)
• M16: 42,346,669 km (0.118 R)
• M17: 51,232,334 km (0.091 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 319 - 10,485 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit