🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 787.3

Radius: 14.4

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.42 AU - 0.68 AU

Year: 282 Days

Day: 8.8 Hours

Environment

Temp: -148 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 72,852,671 km

• M1: 179,069 km (0.118 R)
• M2: 673,190 km (0.097 R)
• M3: 1,577,659 km (0.057 R)
• M4: 2,202,829 km (0.107 R)
• M5: 2,798,827 km (0.071 R)
• M6: 3,624,158 km (0.094 R)
• M7: 4,244,092 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 737.3

Radius: 10.4

Gravity: 6.82 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.72 AU - 0.72 AU

Year: 422 Days

Day: 12.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,852,671 km

• M1: 129,552 km (0.098 R)
• M2: 458,966 km (0.06 R)
• M3: 793,617 km (0.097 R)
• M4: 1,119,291 km (0.088 R)
• M5: 1,743,114 km (0.073 R)
• M6: 2,266,408 km (0.087 R)
• M7: 2,881,704 km (0.106 R)
• M8: 3,580,176 km (0.074 R)
• M9: 3,910,638 km (0.085 R)
• M10: 4,430,491 km (0.114 R)
• M11: 5,492,486 km (0.045 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 909.9

Radius: 12

Gravity: 6.32 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.68 AU - 0.8 AU

Year: 439 Days

Day: 11.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,852,671 km

• M1: 149,299 km (0.085 R)
• M2: 529,576 km (0.1 R)
• M3: 960,418 km (0.041 R)
• M4: 1,393,803 km (0.106 R)
• M5: 2,255,637 km (0.086 R)
• M6: 3,407,540 km (0.099 R)
• M7: 4,059,189 km (0.118 R)
• M8: 4,459,363 km (0.103 R)
• M9: 5,256,869 km (0.038 R)
• M10: 5,893,259 km (0.099 R)
• M11: 6,465,321 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 264.9

Radius: 14.4

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.11 AU - 1.37 AU

Year: 953 Days

Day: 10.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 72,852,671 km

• M1: 179,069 km (0.117 R)
• M2: 701,913 km (0.114 R)
• M3: 1,249,292 km (0.068 R)
• M4: 1,864,887 km (0.051 R)
• M5: 2,394,314 km (0.103 R)
• M6: 3,094,432 km (0.117 R)
• M7: 4,376,785 km (0.12 R)
• M8: 5,039,204 km (0.077 R)
• M9: 5,877,700 km (0.036 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 537

Radius: 12.3

Gravity: 3.55 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 2.09 AU - 2.55 AU

Year: 2439 Days

Day: 5.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 72,852,671 km

• M1: 153,338 km (0.119 R)
• M2: 970,890 km (0.1 R)
• M3: 1,962,724 km (0.104 R)
• M4: 3,237,298 km (0.078 R)
• M5: 3,701,051 km (0.088 R)
• M6: 4,228,683 km (0.048 R)
• M7: 5,204,809 km (0.099 R)
• M8: 6,887,935 km (0.092 R)
• M9: 7,869,297 km (0.103 R)
• M10: 8,843,179 km (0.103 R)
• M11: 9,931,055 km (0.082 R)
• M12: 11,491,959 km (0.032 R)
• M13: 14,131,314 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 736.1

Radius: 11.7

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 3.14 AU - 4.84 AU

Year: 5501 Days

Day: 5.7 Hours

Environment

Temp: -215 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 72,852,671 km

• M1: 145,559 km (0.104 R)
• M2: 696,079 km (0.096 R)
• M3: 1,210,845 km (0.088 R)
• M4: 1,702,274 km (0.032 R)
• M5: 2,423,934 km (0.04 R)
• M6: 2,998,689 km (0.104 R)
• M7: 3,381,660 km (0.063 R)
• M8: 4,654,289 km (0.102 R)
• M9: 5,114,751 km (0.046 R)
• M10: 6,127,678 km (0.118 R)
• M11: 7,891,437 km (0.102 R)
• M12: 8,992,627 km (0.106 R)
• M13: 9,580,397 km (0.08 R)
• M14: 11,305,709 km (0.097 R)
• M15: 14,269,243 km (0.094 R)
• M16: 16,635,134 km (0.093 R)
• M17: 18,306,441 km (0.106 R)
• M18: 23,203,079 km (0.08 R)
• M19: 23,594,277 km (0.075 R)
• M20: 26,034,966 km (0.113 R)
• M21: 26,884,682 km (0.084 R)
• M22: 29,544,981 km (0.086 R)
• M23: 30,844,538 km (0.101 R)
• M24: 32,766,721 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 668.8

Radius: 12.3

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 3.29 AU - 5.07 AU

Year: 5899 Days

Day: 6.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 72,852,671 km

• M1: 153,936 km (0.114 R)
• M2: 568,771 km (0.056 R)
• M3: 1,203,515 km (0.068 R)
• M4: 1,629,869 km (0.084 R)
• M5: 2,082,702 km (0.093 R)
• M6: 2,515,488 km (0.1 R)
• M7: 3,457,506 km (0.104 R)
• M8: 5,722,418 km (0.09 R)
• M9: 6,582,007 km (0.103 R)
• M10: 7,060,571 km (0.084 R)
• M11: 9,423,469 km (0.099 R)
• M12: 9,855,807 km (0.095 R)
• M13: 10,437,892 km (0.09 R)
• M14: 11,137,861 km (0.092 R)
• M15: 11,523,823 km (0.087 R)
• M16: 14,941,835 km (0.099 R)
• M17: 15,770,907 km (0.05 R)
• M18: 16,381,715 km (0.103 R)
• M19: 19,605,699 km (0.11 R)
• M20: 20,169,533 km (0.11 R)
• M21: 24,021,828 km (0.098 R)
• M22: 24,994,812 km (0.107 R)
• M23: 28,071,741 km (0.098 R)
• M24: 32,262,426 km (0.07 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 842.6

Radius: 5

Gravity: 33.7 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 7.66 AU - 9.2 AU

Year: 16895 Days

Day: 22.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 72,852,671 km

• M1: 63,429 km (0.089 R)
• M2: 225,893 km (0.119 R)
• M3: 577,448 km (0.067 R)
• M4: 755,768 km (0.065 R)
• M5: 1,080,994 km (0.027 R)
• M6: 1,401,433 km (0.112 R)
• M7: 1,912,010 km (0.109 R)
• M8: 2,923,142 km (0.118 R)
• M9: 3,346,355 km (0.032 R)
• M10: 5,115,798 km (0.104 R)
• M11: 5,610,668 km (0.116 R)
• M12: 5,889,967 km (0.081 R)
• M13: 8,213,222 km (0.114 R)
• M14: 9,832,021 km (0.093 R)
• M15: 11,022,222 km (0.097 R)
• M16: 11,780,683 km (0.103 R)
• M17: 12,573,402 km (0.056 R)
• M18: 14,560,361 km (0.086 R)
• M19: 17,494,274 km (0.052 R)
• M20: 17,663,170 km (0.091 R)
• M21: 18,004,403 km (0.074 R)
• M22: 23,870,734 km (0.112 R)
• M23: 25,785,886 km (0.041 R)
• M24: 26,557,512 km (0.118 R)
• M25: 26,780,712 km (0.099 R)
• M26: 27,005,258 km (0.1 R)
• M27: 30,770,636 km (0.094 R)
• M28: 32,268,410 km (0.071 R)
• M29: 36,087,195 km (0.097 R)
• M30: 37,052,101 km (0.08 R)
• M31: 39,033,226 km (0.09 R)
• M32: 43,980,428 km (0.088 R)
• M33: 50,517,256 km (0.095 R)
• M34: 52,246,907 km (0.101 R)
• M35: 55,277,460 km (0.109 R)
• M36: 57,485,824 km (0.114 R)
• M37: 57,672,373 km (0.109 R)
• M38: 62,077,581 km (0.1 R)
• M39: 63,860,638 km (0.064 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 213 - 15,925 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit