🌌 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: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 320.5

Radius: 12.9

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.53 AU - 0.61 AU

Year: 287 Days

Day: 11.6 Hours

Environment

Temp: -143 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 55,306,918 km

• M1: 160,519 km (0.117 R)
• M2: 568,921 km (0.06 R)
• M3: 1,351,467 km (0.028 R)
• M4: 2,306,650 km (0.07 R)
• M5: 3,178,656 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 673.4

Radius: 14.4

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.8 AU - 1.12 AU

Year: 627 Days

Day: 12 Hours

Environment

Temp: -167 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 55,306,918 km

• M1: 179,817 km (0.118 R)
• M2: 645,664 km (0.12 R)
• M3: 1,194,090 km (0.113 R)
• M4: 1,657,096 km (0.083 R)
• M5: 2,140,895 km (0.114 R)
• M6: 2,785,812 km (0.108 R)
• M7: 3,265,422 km (0.112 R)
• M8: 4,563,633 km (0.03 R)
• M9: 5,133,451 km (0.114 R)
• M10: 5,695,789 km (0.116 R)
• M11: 6,516,334 km (0.049 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 719.3

Radius: 8.5

Gravity: 9.96 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.87 AU - 1.07 AU

Year: 637 Days

Day: 5.6 Hours

Environment

Temp: -182 °C

Axial Tilt: 162.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 55,306,918 km

• M1: 107,262 km (0.087 R)
• M2: 412,292 km (0.072 R)
• M3: 685,906 km (0.09 R)
• M4: 1,018,612 km (0.046 R)
• M5: 1,416,243 km (0.101 R)
• M6: 1,704,219 km (0.109 R)
• M7: 2,031,689 km (0.045 R)
• M8: 2,473,750 km (0.12 R)
• M9: 2,814,684 km (0.071 R)
• M10: 3,313,892 km (0.101 R)
• M11: 3,870,845 km (0.113 R)
• M12: 4,552,562 km (0.057 R)
• M13: 4,830,066 km (0.105 R)
• M14: 5,329,574 km (0.115 R)
• M15: 5,882,338 km (0.082 R)
• M16: 6,291,488 km (0.12 R)
• M17: 7,298,581 km (0.071 R)
• M18: 7,725,533 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 904.3

Radius: 14.4

Gravity: 4.36 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 1.37 AU - 1.53 AU

Year: 1164 Days

Day: 11.6 Hours

Environment

Temp: -200 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,306,918 km

• M1: 179,517 km (0.091 R)
• M2: 736,620 km (0.054 R)
• M3: 1,606,532 km (0.112 R)
• M4: 2,103,645 km (0.111 R)
• M5: 2,998,091 km (0.107 R)
• M6: 3,732,168 km (0.053 R)
• M7: 5,372,209 km (0.112 R)
• M8: 5,865,433 km (0.097 R)
• M9: 7,194,760 km (0.118 R)
• M10: 9,009,681 km (0.06 R)
• M11: 11,147,734 km (0.097 R)
• M12: 11,990,120 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 998.3

Radius: 10.4

Gravity: 9.23 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.56 AU - 2.58 AU

Year: 1986 Days

Day: 14.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 55,306,918 km

• M1: 129,402 km (0.064 R)
• M2: 515,514 km (0.032 R)
• M3: 896,839 km (0.09 R)
• M4: 1,500,018 km (0.054 R)
• M5: 1,859,651 km (0.092 R)
• M6: 2,910,875 km (0.069 R)
• M7: 3,863,814 km (0.099 R)
• M8: 4,549,870 km (0.069 R)
• M9: 5,035,614 km (0.034 R)
• M10: 5,679,034 km (0.116 R)
• M11: 7,216,900 km (0.089 R)
• M12: 7,972,370 km (0.113 R)
• M13: 8,483,097 km (0.083 R)
• M14: 9,117,691 km (0.091 R)
• M15: 10,000,618 km (0.105 R)
• M16: 11,017,135 km (0.102 R)
• M17: 11,732,063 km (0.071 R)
• M18: 12,647,752 km (0.09 R)
• M19: 13,565,535 km (0.09 R)
• M20: 15,192,861 km (0.1 R)
• M21: 15,829,250 km (0.056 R)
• M22: 18,224,761 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 922.5

Radius: 11.9

Gravity: 6.51 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.91 AU - 3.03 AU

Year: 2589 Days

Day: 10.2 Hours

Environment

Temp: -214 °C

Axial Tilt: 49.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,306,918 km

• M1: 204,051 km (0.087 R)
• M2: 874,250 km (0.117 R)
• M3: 1,484,011 km (0.075 R)
• M4: 2,538,975 km (0.089 R)
• M5: 3,623,560 km (0.063 R)
• M6: 4,228,384 km (0.115 R)
• M7: 5,114,751 km (0.052 R)
• M8: 5,589,425 km (0.088 R)
• M9: 7,854,935 km (0.099 R)
• M10: 9,558,107 km (0.095 R)
• M11: 9,972,194 km (0.077 R)
• M12: 12,312,802 km (0.094 R)
• M13: 13,681,922 km (0.116 R)
• M14: 14,948,418 km (0.08 R)
• M15: 17,047,276 km (0.097 R)
• M16: 17,433,837 km (0.081 R)
• M17: 20,991,872 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 282.9

Radius: 8.1

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 2.53 AU - 4.19 AU

Year: 4107 Days

Day: 12.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,306,918 km

• M1: 101,128 km (0.082 R)
• M2: 461,809 km (0.117 R)
• M3: 731,683 km (0.117 R)
• M4: 1,876,855 km (0.114 R)
• M5: 2,538,825 km (0.087 R)
• M6: 3,455,262 km (0.075 R)
• M7: 4,009,073 km (0.067 R)
• M8: 4,339,086 km (0.06 R)
• M9: 6,716,496 km (0.092 R)
• M10: 7,243,080 km (0.102 R)
• M11: 7,923,900 km (0.111 R)
• M12: 8,445,249 km (0.116 R)
• M13: 8,782,592 km (0.067 R)
• M14: 10,451,805 km (0.101 R)
• M15: 11,689,428 km (0.087 R)
• M16: 15,430,272 km (0.09 R)
• M17: 19,605,549 km (0.092 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 978.6

Radius: 3.5

Gravity: 79.89 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 5.97 AU - 6.49 AU

Year: 10370 Days

Day: 20.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 55,306,918 km

• M1: 44,281 km (0.116 R)
• M2: 399,127 km (0.107 R)
• M3: 1,658,292 km (0.116 R)
• M4: 1,923,230 km (0.091 R)
• M5: 3,633,732 km (0.089 R)
• M6: 3,908,394 km (0.111 R)
• M7: 4,376,336 km (0.083 R)
• M8: 5,180,724 km (0.119 R)
• M9: 5,599,897 km (0.114 R)
• M10: 5,891,763 km (0.118 R)
• M11: 6,951,514 km (0.086 R)
• M12: 8,458,712 km (0.037 R)
• M13: 8,940,268 km (0.071 R)
• M14: 9,237,968 km (0.101 R)
• M15: 11,107,343 km (0.071 R)
• M16: 11,920,856 km (0.116 R)
• M17: 13,150,700 km (0.075 R)
• M18: 14,193,547 km (0.081 R)
• M19: 14,941,835 km (0.115 R)
• M20: 16,590,404 km (0.088 R)
• M21: 17,039,646 km (0.083 R)
• M22: 18,435,843 km (0.115 R)
• M23: 18,998,930 km (0.101 R)
• M24: 20,243,733 km (0.081 R)
• M25: 20,499,097 km (0.092 R)
• M26: 21,808,078 km (0.095 R)
• M27: 24,302,772 km (0.085 R)
• M28: 24,687,837 km (0.102 R)
• M29: 25,273,064 km (0.073 R)
• M30: 29,195,820 km (0.046 R)
• M31: 31,528,350 km (0.111 R)
• M32: 34,102,031 km (0.118 R)
• M33: 35,563,303 km (0.059 R)
• M34: 36,812,446 km (0.066 R)
• M35: 40,196,349 km (0.111 R)
• M36: 41,688,439 km (0.101 R)
• M37: 46,532,866 km (0.07 R)
• M38: 50,014,458 km (0.079 R)
• M39: 54,482,049 km (0.064 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 506 - 11,431 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit