🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 423.3

Radius: 12.2

Gravity: 2.84 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.88 AU - 1.2 AU

Year: 732 Days

Day: 10.7 Hours

Environment

Temp: -180 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 58,233,636 km

• M1: 153,936 km (0.096 R)
• M2: 633,697 km (0.107 R)
• M3: 1,271,283 km (0.045 R)
• M4: 1,850,825 km (0.109 R)
• M5: 2,389,676 km (0.04 R)
• M6: 2,883,349 km (0.076 R)
• M7: 3,854,389 km (0.105 R)
• M8: 4,804,485 km (0.106 R)
• M9: 5,650,611 km (0.104 R)
• M10: 6,338,761 km (0.116 R)
• M11: 6,916,658 km (0.07 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 124.6

Radius: 9.7

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.13 AU - 1.23 AU

Year: 885 Days

Day: 11.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 158.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 58,233,636 km

• M1: 121,025 km (0.085 R)
• M2: 591,510 km (0.101 R)
• M3: 1,031,627 km (0.075 R)
• M4: 1,509,143 km (0.083 R)
• M5: 1,983,668 km (0.056 R)
• M6: 2,326,995 km (0.082 R)
• M7: 2,632,025 km (0.109 R)
• M8: 2,974,604 km (0.067 R)
• M9: 3,462,293 km (0.115 R)
• M10: 4,172,584 km (0.054 R)
• M11: 4,712,483 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 334.4

Radius: 12.3

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 1.48 AU - 1.98 AU

Year: 1571 Days

Day: 13.1 Hours

Environment

Temp: -191 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 58,233,636 km

• M1: 194,028 km (0.095 R)
• M2: 706,252 km (0.109 R)
• M3: 1,187,059 km (0.099 R)
• M4: 1,650,065 km (0.042 R)
• M5: 2,277,777 km (0.095 R)
• M6: 3,060,174 km (0.101 R)
• M7: 3,981,697 km (0.117 R)
• M8: 5,099,043 km (0.054 R)
• M9: 5,555,616 km (0.044 R)
• M10: 6,236,436 km (0.079 R)
• M11: 6,829,891 km (0.087 R)
• M12: 9,471,191 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 67.5

Radius: 10.9

Gravity: 0.57 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.59 AU - 1.89 AU

Year: 1584 Days

Day: 12.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 58,233,636 km

• M1: 135,536 km (0.116 R)
• M2: 589,116 km (0.088 R)
• M3: 1,226,403 km (0.042 R)
• M4: 2,624,844 km (0.05 R)
• M5: 3,777,645 km (0.071 R)
• M6: 4,918,329 km (0.055 R)
• M7: 6,200,981 km (0.085 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 795.9

Radius: 4.8

Gravity: 34.54 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 4.64 AU - 7.38 AU

Year: 10170 Days

Day: 17.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 58,233,636 km

• M1: 59,989 km (0.092 R)
• M2: 224,696 km (0.061 R)
• M3: 392,545 km (0.118 R)
• M4: 893,847 km (0.087 R)
• M5: 1,165,218 km (0.032 R)
• M6: 1,546,992 km (0.117 R)
• M7: 2,638,009 km (0.115 R)
• M8: 4,425,255 km (0.116 R)
• M9: 4,949,894 km (0.057 R)
• M10: 5,902,683 km (0.115 R)
• M11: 7,216,900 km (0.049 R)
• M12: 8,254,212 km (0.086 R)
• M13: 8,855,895 km (0.109 R)
• M14: 9,837,855 km (0.104 R)
• M15: 10,999,483 km (0.102 R)
• M16: 11,784,572 km (0.103 R)
• M17: 12,015,701 km (0.106 R)
• M18: 12,970,135 km (0.115 R)
• M19: 13,340,689 km (0.104 R)
• M20: 14,760,224 km (0.084 R)
• M21: 15,028,752 km (0.077 R)
• M22: 17,000,302 km (0.084 R)
• M23: 18,047,936 km (0.112 R)
• M24: 18,743,566 km (0.117 R)
• M25: 19,942,593 km (0.086 R)
• M26: 20,270,811 km (0.12 R)
• M27: 26,023,597 km (0.082 R)
• M28: 26,317,108 km (0.089 R)
• M29: 30,662,178 km (0.118 R)
• M30: 31,762,919 km (0.113 R)
• M31: 38,165,110 km (0.061 R)
• M32: 40,215,199 km (0.067 R)
• M33: 40,476,546 km (0.088 R)
• M34: 41,400,014 km (0.076 R)
• M35: 46,229,183 km (0.08 R)
• M36: 46,659,725 km (0.117 R)
• M37: 47,093,111 km (0.03 R)
• M38: 47,821,054 km (0.074 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 131.4

Radius: 7.8

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 6.01 AU - 8.29 AU

Year: 13197 Days

Day: 22.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 58,233,636 km

• M1: 99,632 km (0.074 R)
• M2: 386,860 km (0.11 R)
• M3: 1,631,365 km (0.103 R)
• M4: 2,034,082 km (0.113 R)
• M5: 3,518,093 km (0.108 R)
• M6: 4,292,262 km (0.069 R)
• M7: 5,118,491 km (0.084 R)
• M8: 8,548,172 km (0.106 R)
• M9: 9,415,989 km (0.077 R)
• M10: 10,160,687 km (0.117 R)
• M11: 11,916,069 km (0.117 R)
• M12: 14,312,477 km (0.08 R)
• M13: 15,119,109 km (0.111 R)
• M14: 17,720,915 km (0.069 R)
• M15: 19,196,249 km (0.059 R)
• M16: 23,318,269 km (0.086 R)
• M17: 24,515,052 km (0.118 R)
• M18: 27,378,355 km (0.089 R)
• M19: 32,079,917 km (0.106 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 382.2

Radius: 4.4

Gravity: 19.74 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 6.99 AU - 10.55 AU

Year: 17927 Days

Day: 16.7 Hours

Environment

Temp: -239 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 58,233,636 km

• M1: 57,146 km (0.073 R)
• M2: 371,900 km (0.05 R)
• M3: 1,373,308 km (0.04 R)
• M4: 1,578,856 km (0.072 R)
• M5: 2,033,484 km (0.036 R)
• M6: 2,222,426 km (0.05 R)
• M7: 2,485,569 km (0.103 R)
• M8: 3,297,735 km (0.081 R)
• M9: 4,273,413 km (0.098 R)
• M10: 4,552,413 km (0.106 R)
• M11: 5,866,630 km (0.09 R)
• M12: 6,095,066 km (0.089 R)
• M13: 6,329,336 km (0.118 R)
• M14: 7,863,313 km (0.057 R)
• M15: 8,765,388 km (0.064 R)
• M16: 9,472,687 km (0.115 R)
• M17: 12,558,592 km (0.102 R)
• M18: 13,987,551 km (0.104 R)
• M19: 17,086,919 km (0.081 R)
• M20: 17,947,406 km (0.078 R)
• M21: 19,250,254 km (0.098 R)
• M22: 19,501,279 km (0.099 R)
• M23: 22,133,753 km (0.091 R)
• M24: 24,500,840 km (0.06 R)
• M25: 25,093,098 km (0.05 R)
• M26: 33,561,684 km (0.043 R)
• M27: 35,281,760 km (0.11 R)
• M28: 35,657,849 km (0.034 R)
• M29: 36,673,918 km (0.116 R)
• M30: 41,624,560 km (0.098 R)
• M31: 42,044,482 km (0.104 R)
• M32: 42,892,701 km (0.087 R)
• M33: 46,100,678 km (0.094 R)
• M34: 48,686,328 km (0.116 R)
• M35: 49,464,835 km (0.078 R)
• M36: 52,989,062 km (0.064 R)
• M37: 54,144,556 km (0.066 R)
• M38: 55,316,655 km (0.1 R)
• M39: 57,711,567 km (0.057 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 324 - 14,521 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit