🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 109.4

Radius: 14.1

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.67 AU - 0.79 AU

Year: 423 Days

Day: 5.5 Hours

Environment

Temp: -156 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 55,777,560 km

• M1: 175,329 km (0.097 R)
• M2: 629,358 km (0.072 R)
• M3: 1,403,378 km (0.079 R)
• M4: 2,298,870 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 581.8

Radius: 9.5

Gravity: 6.45 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.93 AU - 0.95 AU

Year: 618 Days

Day: 7.1 Hours

Environment

Temp: -166 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,777,560 km

• M1: 118,332 km (0.097 R)
• M2: 446,400 km (0.105 R)
• M3: 806,333 km (0.055 R)
• M4: 1,116,449 km (0.092 R)
• M5: 1,508,096 km (0.046 R)
• M6: 1,821,803 km (0.091 R)
• M7: 2,133,565 km (0.106 R)
• M8: 2,481,081 km (0.089 R)
• M9: 3,169,380 km (0.078 R)
• M10: 3,532,754 km (0.025 R)
• M11: 4,008,176 km (0.062 R)
• M12: 5,239,366 km (0.097 R)
• M13: 5,695,191 km (0.115 R)
• M14: 6,706,323 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 731.9

Radius: 13.5

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.84 AU - 1.28 AU

Year: 740 Days

Day: 8.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 55,777,560 km

• M1: 168,148 km (0.091 R)
• M2: 647,609 km (0.117 R)
• M3: 1,324,988 km (0.091 R)
• M4: 1,820,606 km (0.057 R)
• M5: 2,483,474 km (0.102 R)
• M6: 3,023,822 km (0.085 R)
• M7: 3,975,115 km (0.083 R)
• M8: 4,669,698 km (0.106 R)
• M9: 5,960,278 km (0.11 R)
• M10: 6,937,601 km (0.095 R)
• M11: 7,522,828 km (0.102 R)
• M12: 8,067,664 km (0.076 R)
• M13: 8,537,550 km (0.052 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 940

Radius: 13.4

Gravity: 5.24 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 2.48 AU - 3.12 AU

Year: 3178 Days

Day: 11.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 55,777,560 km

• M1: 166,652 km (0.074 R)
• M2: 673,490 km (0.059 R)
• M3: 1,539,960 km (0.044 R)
• M4: 1,966,015 km (0.095 R)
• M5: 3,671,132 km (0.087 R)
• M6: 4,111,249 km (0.08 R)
• M7: 5,226,800 km (0.055 R)
• M8: 5,897,597 km (0.079 R)
• M9: 6,327,242 km (0.105 R)
• M10: 7,845,511 km (0.074 R)
• M11: 8,295,651 km (0.098 R)
• M12: 9,324,435 km (0.075 R)
• M13: 9,909,662 km (0.09 R)
• M14: 11,067,699 km (0.04 R)
• M15: 13,260,206 km (0.093 R)
• M16: 14,356,309 km (0.098 R)
• M17: 16,728,782 km (0.053 R)
• M18: 18,855,764 km (0.036 R)
• M19: 19,984,331 km (0.075 R)
• M20: 21,091,056 km (0.037 R)
• M21: 21,828,723 km (0.109 R)
• M22: 22,306,987 km (0.092 R)
• M23: 23,569,294 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 758.9

Radius: 10.4

Gravity: 7.02 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 2.47 AU - 3.63 AU

Year: 3613 Days

Day: 11.6 Hours

Environment

Temp: -208 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 55,777,560 km

• M1: 129,402 km (0.116 R)
• M2: 655,538 km (0.106 R)
• M3: 1,095,804 km (0.035 R)
• M4: 1,513,631 km (0.071 R)
• M5: 2,023,760 km (0.113 R)
• M6: 2,471,506 km (0.104 R)
• M7: 2,811,842 km (0.068 R)
• M8: 3,352,787 km (0.064 R)
• M9: 4,092,549 km (0.076 R)
• M10: 4,524,887 km (0.065 R)
• M11: 4,912,495 km (0.076 R)
• M12: 5,894,754 km (0.081 R)
• M13: 6,971,410 km (0.08 R)
• M14: 10,271,988 km (0.074 R)
• M15: 10,604,395 km (0.067 R)
• M16: 10,987,066 km (0.042 R)
• M17: 16,611,348 km (0.066 R)
• M18: 18,866,835 km (0.116 R)
• M19: 20,392,284 km (0.101 R)
• M20: 20,984,991 km (0.08 R)
• M21: 22,621,741 km (0.11 R)
• M22: 24,195,361 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 93.7

Radius: 8.7

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 2.8 AU - 3.36 AU

Year: 3666 Days

Day: 11.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 55,777,560 km

• M1: 304,132 km (0.093 R)
• M2: 678,875 km (0.113 R)
• M3: 1,024,297 km (0.072 R)
• M4: 1,313,170 km (0.064 R)
• M5: 1,694,944 km (0.102 R)
• M6: 2,183,680 km (0.106 R)
• M7: 3,350,244 km (0.119 R)
• M8: 4,887,961 km (0.101 R)
• M9: 5,378,642 km (0.108 R)
• M10: 6,923,240 km (0.086 R)
• M11: 10,828,193 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 741.5

Radius: 13.2

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 4.03 AU - 5.51 AU

Year: 7066 Days

Day: 12.9 Hours

Environment

Temp: -213 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 55,777,560 km

• M1: 164,258 km (0.058 R)
• M2: 675,135 km (0.114 R)
• M3: 1,536,071 km (0.085 R)
• M4: 1,993,242 km (0.089 R)
• M5: 2,578,618 km (0.115 R)
• M6: 4,304,679 km (0.035 R)
• M7: 5,790,186 km (0.091 R)
• M8: 6,354,618 km (0.055 R)
• M9: 8,562,234 km (0.116 R)
• M10: 9,932,251 km (0.077 R)
• M11: 20,070,499 km (0.093 R)
• M12: 21,366,765 km (0.114 R)
• M13: 21,837,400 km (0.111 R)
• M14: 23,208,314 km (0.065 R)
• M15: 24,807,665 km (0.119 R)
• M16: 25,415,033 km (0.059 R)
• M17: 25,943,562 km (0.073 R)
• M18: 27,296,974 km (0.054 R)
• M19: 28,037,633 km (0.113 R)
• M20: 31,538,373 km (0.095 R)
• M21: 33,288,518 km (0.09 R)
• M22: 34,994,233 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 899.2

Radius: 8

Gravity: 14.05 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 5.09 AU - 7.49 AU

Year: 10700 Days

Day: 15.2 Hours

Environment

Temp: -229 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 55,777,560 km

• M1: 99,483 km (0.105 R)
• M2: 667,207 km (0.093 R)
• M3: 1,450,052 km (0.114 R)
• M4: 2,349,883 km (0.026 R)
• M5: 2,677,802 km (0.053 R)
• M6: 3,425,941 km (0.046 R)
• M7: 3,821,627 km (0.076 R)
• M8: 5,330,172 km (0.082 R)
• M9: 5,645,375 km (0.062 R)
• M10: 11,469,968 km (0.12 R)
• M11: 15,289,351 km (0.058 R)
• M12: 15,641,505 km (0.115 R)
• M13: 18,024,898 km (0.063 R)
• M14: 24,157,214 km (0.102 R)
• M15: 24,443,095 km (0.094 R)
• M16: 25,314,802 km (0.08 R)
• M17: 34,473,782 km (0.042 R)
• M18: 41,398,219 km (0.045 R)
• M19: 45,764,233 km (0.119 R)
• M20: 46,202,405 km (0.109 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 137.9

Radius: 7.2

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 6.45 AU - 9.19 AU

Year: 14832 Days

Day: 23.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 55,777,560 km

• M1: 90,058 km (0.06 R)
• M2: 679,773 km (0.086 R)
• M3: 1,920,687 km (0.077 R)
• M4: 2,987,320 km (0.108 R)
• M5: 3,258,242 km (0.103 R)
• M6: 4,145,507 km (0.06 R)
• M7: 4,811,367 km (0.104 R)
• M8: 9,333,710 km (0.106 R)
• M9: 15,220,835 km (0.036 R)
• M10: 16,342,819 km (0.069 R)
• M11: 17,518,808 km (0.066 R)
• M12: 19,387,286 km (0.107 R)
• M13: 19,965,481 km (0.045 R)
• M14: 22,236,228 km (0.067 R)
• M15: 23,760,331 km (0.078 R)
• M16: 24,589,851 km (0.116 R)
• M17: 25,352,800 km (0.117 R)
• M18: 29,311,309 km (0.113 R)
• M19: 31,239,626 km (0.12 R)
• M20: 32,335,430 km (0.103 R)
• M21: 36,100,809 km (0.095 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 477.7

Radius: 4.8

Gravity: 20.73 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 6.41 AU - 9.37 AU

Year: 15032 Days

Day: 24.1 Hours

Environment

Temp: -232 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 55,777,560 km

• M1: 59,690 km (0.073 R)
• M2: 323,879 km (0.082 R)
• M3: 512,223 km (0.108 R)
• M4: 694,284 km (0.066 R)
• M5: 951,293 km (0.116 R)
• M6: 1,168,659 km (0.06 R)
• M7: 1,376,899 km (0.118 R)
• M8: 1,687,614 km (0.102 R)
• M9: 2,192,207 km (0.088 R)
• M10: 3,021,578 km (0.053 R)
• M11: 3,546,068 km (0.074 R)
• M12: 3,733,664 km (0.109 R)
• M13: 3,984,689 km (0.106 R)
• M14: 4,246,934 km (0.079 R)
• M15: 4,677,626 km (0.087 R)
• M16: 6,534,884 km (0.043 R)
• M17: 13,338,894 km (0.096 R)
• M18: 13,991,739 km (0.093 R)
• M19: 14,393,709 km (0.037 R)
• M20: 14,872,123 km (0.095 R)
• M21: 15,788,858 km (0.036 R)
• M22: 16,078,330 km (0.096 R)
• M23: 20,255,552 km (0.106 R)
• M24: 25,596,046 km (0.086 R)
• M25: 27,219,033 km (0.089 R)
• M26: 29,017,349 km (0.042 R)
• M27: 31,006,103 km (0.061 R)
• M28: 33,320,383 km (0.075 R)
• M29: 33,796,553 km (0.08 R)
• M30: 36,623,653 km (0.027 R)
• M31: 37,386,303 km (0.114 R)
• M32: 38,943,168 km (0.117 R)
• M33: 40,813,590 km (0.086 R)
• M34: 41,358,725 km (0.118 R)
• M35: 43,446,513 km (0.116 R)
• M36: 44,014,835 km (0.047 R)
• M37: 53,145,691 km (0.061 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 362 - 12,116 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit