🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11.1

Radius: 12.9

Gravity: 0.07 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.63 AU - 0.65 AU

Year: 341 Days

Day: 7 Hours

Environment

Temp: -143 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (2)

Outer Limit: 78,235,333 km

• M1: 160,519 km (0.098 R)
• M2: 614,548 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 72.3

Radius: 14.1

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.9 AU - 1.12 AU

Year: 677 Days

Day: 13.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 78,235,333 km

• M1: 175,628 km (0.109 R)
• M2: 1,244,505 km (0.105 R)
• M3: 2,738,239 km (0.092 R)
• M4: 3,212,016 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 799.1

Radius: 13.5

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 2.17 AU - 2.23 AU

Year: 2176 Days

Day: 7.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 78,235,333 km

• M1: 168,597 km (0.033 R)
• M2: 788,830 km (0.072 R)
• M3: 1,432,848 km (0.045 R)
• M4: 2,180,688 km (0.106 R)
• M5: 2,785,064 km (0.112 R)
• M6: 3,310,302 km (0.115 R)
• M7: 4,153,286 km (0.031 R)
• M8: 5,157,985 km (0.114 R)
• M9: 6,318,715 km (0.089 R)
• M10: 6,890,777 km (0.113 R)
• M11: 8,139,022 km (0.116 R)
• M12: 8,587,067 km (0.105 R)
• M13: 11,712,466 km (0.04 R)
• M14: 12,326,416 km (0.07 R)
• M15: 13,309,423 km (0.118 R)
• M16: 14,114,709 km (0.104 R)
• M17: 15,095,024 km (0.088 R)
• M18: 16,675,375 km (0.057 R)
• M19: 17,984,955 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 627.7

Radius: 14

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.77 AU - 2.91 AU

Year: 2387 Days

Day: 7 Hours

Environment

Temp: -199 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 78,235,333 km

• M1: 174,431 km (0.077 R)
• M2: 692,489 km (0.111 R)
• M3: 1,155,344 km (0.12 R)
• M4: 1,675,047 km (0.072 R)
• M5: 3,273,052 km (0.045 R)
• M6: 4,025,380 km (0.081 R)
• M7: 4,673,886 km (0.086 R)
• M8: 5,851,521 km (0.099 R)
• M9: 6,686,127 km (0.105 R)
• M10: 7,363,207 km (0.085 R)
• M11: 8,273,510 km (0.085 R)
• M12: 8,854,848 km (0.085 R)
• M13: 9,956,037 km (0.092 R)
• M14: 10,465,568 km (0.04 R)
• M15: 11,146,537 km (0.084 R)
• M16: 13,193,784 km (0.087 R)
• M17: 16,216,260 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 844.7

Radius: 10.8

Gravity: 7.24 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 2.13 AU - 2.99 AU

Year: 2731 Days

Day: 11.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 78,235,333 km

• M1: 134,339 km (0.034 R)
• M2: 567,126 km (0.076 R)
• M3: 1,129,314 km (0.055 R)
• M4: 1,479,822 km (0.06 R)
• M5: 2,268,652 km (0.063 R)
• M6: 2,970,116 km (0.03 R)
• M7: 3,910,788 km (0.072 R)
• M8: 4,573,357 km (0.089 R)
• M9: 6,660,097 km (0.062 R)
• M10: 7,573,691 km (0.086 R)
• M11: 9,499,914 km (0.093 R)
• M12: 10,980,185 km (0.067 R)
• M13: 11,394,122 km (0.115 R)
• M14: 11,775,596 km (0.112 R)
• M15: 12,563,977 km (0.113 R)
• M16: 14,294,974 km (0.119 R)
• M17: 16,934,180 km (0.042 R)
• M18: 20,498,199 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 440.5

Radius: 9.3

Gravity: 5.09 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 3.44 AU - 3.92 AU

Year: 4708 Days

Day: 5.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 78,235,333 km

• M1: 118,033 km (0.113 R)
• M2: 628,311 km (0.103 R)
• M3: 1,003,203 km (0.107 R)
• M4: 1,408,913 km (0.083 R)
• M5: 1,833,322 km (0.089 R)
• M6: 2,124,888 km (0.108 R)
• M7: 2,621,403 km (0.12 R)
• M8: 3,249,565 km (0.117 R)
• M9: 4,445,600 km (0.04 R)
• M10: 5,105,027 km (0.11 R)
• M11: 7,183,241 km (0.068 R)
• M12: 9,495,276 km (0.093 R)
• M13: 12,827,718 km (0.065 R)
• M14: 13,262,150 km (0.039 R)
• M15: 14,211,499 km (0.077 R)
• M16: 14,676,748 km (0.086 R)
• M17: 18,587,984 km (0.087 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 225.2

Radius: 5.5

Gravity: 7.44 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 5.03 AU - 8.09 AU

Year: 11204 Days

Day: 24.2 Hours

Environment

Temp: -229 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 78,235,333 km

• M1: 70,610 km (0.113 R)
• M2: 432,338 km (0.117 R)
• M3: 937,081 km (0.069 R)
• M4: 2,452,208 km (0.115 R)
• M5: 3,490,418 km (0.114 R)
• M6: 5,134,797 km (0.091 R)
• M7: 5,492,187 km (0.103 R)
• M8: 7,272,850 km (0.098 R)
• M9: 9,626,324 km (0.096 R)
• M10: 11,718,749 km (0.107 R)
• M11: 12,077,485 km (0.062 R)
• M12: 16,648,597 km (0.117 R)
• M13: 18,718,733 km (0.109 R)
• M14: 19,138,355 km (0.099 R)
• M15: 20,656,624 km (0.043 R)
• M16: 25,604,424 km (0.117 R)
• M17: 27,176,248 km (0.057 R)
• M18: 34,212,285 km (0.096 R)
• M19: 35,580,806 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 838.1

Radius: 6

Gravity: 23.28 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 8.98 AU - 9.58 AU

Year: 18852 Days

Day: 18.9 Hours

Environment

Temp: -234 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 78,235,333 km

• M1: 74,799 km (0.085 R)
• M2: 312,959 km (0.077 R)
• M3: 1,238,222 km (0.056 R)
• M4: 1,496,428 km (0.103 R)
• M5: 2,588,043 km (0.079 R)
• M6: 3,039,530 km (0.1 R)
• M7: 3,844,216 km (0.092 R)
• M8: 4,535,059 km (0.105 R)
• M9: 5,002,254 km (0.071 R)
• M10: 5,422,175 km (0.119 R)
• M11: 6,869,833 km (0.062 R)
• M12: 7,632,932 km (0.114 R)
• M13: 9,962,470 km (0.111 R)
• M14: 14,702,329 km (0.099 R)
• M15: 15,722,587 km (0.077 R)
• M16: 33,048,713 km (0.09 R)
• M17: 46,400,772 km (0.084 R)
• M18: 48,075,071 km (0.111 R)
• M19: 49,443,143 km (0.034 R)
• M20: 53,338,971 km (0.062 R)
• M21: 66,244,780 km (0.109 R)
• M22: 68,365,479 km (0.053 R)
• M23: 68,794,974 km (0.091 R)
• M24: 78,001,078 km (0.117 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 520 - 16,452 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit