🌌 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: 164.4

Radius: 9.8

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.5 AU - 0.6 AU

Year: 282 Days

Day: 9.6 Hours

Environment

Temp: -150 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 67,413,590 km

• M1: 121,922 km (0.091 R)
• M2: 555,457 km (0.085 R)
• M3: 1,151,156 km (0.064 R)
• M4: 1,486,255 km (0.047 R)
• M5: 1,815,370 km (0.081 R)
• M6: 2,248,157 km (0.084 R)
• M7: 2,579,217 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 279.9

Radius: 13.5

Gravity: 1.54 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 1.71 AU - 1.85 AU

Year: 1639 Days

Day: 14.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 67,413,590 km

• M1: 175,478 km (0.105 R)
• M2: 677,828 km (0.105 R)
• M3: 1,098,198 km (0.085 R)
• M4: 1,837,361 km (0.069 R)
• M5: 2,354,521 km (0.077 R)
• M6: 3,047,608 km (0.054 R)
• M7: 3,703,146 km (0.112 R)
• M8: 5,163,071 km (0.108 R)
• M9: 6,141,890 km (0.113 R)
• M10: 6,721,732 km (0.11 R)
• M11: 7,338,075 km (0.117 R)
• M12: 9,101,385 km (0.087 R)
• M13: 9,532,227 km (0.071 R)

Asteroid Belt

Center: 2.34 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 2.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136

Radius: 11.8

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 2.82 AU - 2.98 AU

Year: 3409 Days

Day: 10.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,413,590 km

• M1: 149,448 km (0.1 R)
• M2: 593,305 km (0.114 R)
• M3: 1,352,365 km (0.118 R)
• M4: 2,088,985 km (0.086 R)
• M5: 3,853,791 km (0.049 R)
• M6: 4,717,569 km (0.118 R)
• M7: 5,728,402 km (0.115 R)
• M8: 7,241,135 km (0.118 R)
• M9: 8,349,207 km (0.047 R)
• M10: 10,185,371 km (0.119 R)
• M11: 11,466,228 km (0.1 R)
• M12: 11,978,002 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 753.8

Radius: 13.4

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 2.44 AU - 4.02 AU

Year: 4007 Days

Day: 14.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 67,413,590 km

• M1: 166,802 km (0.12 R)
• M2: 636,389 km (0.084 R)
• M3: 1,293,124 km (0.112 R)
• M4: 1,801,607 km (0.031 R)
• M5: 2,247,708 km (0.1 R)
• M6: 2,836,974 km (0.057 R)
• M7: 5,248,342 km (0.074 R)
• M8: 7,239,639 km (0.055 R)
• M9: 7,956,662 km (0.095 R)
• M10: 8,424,006 km (0.053 R)
• M11: 11,042,268 km (0.05 R)
• M12: 11,488,518 km (0.064 R)
• M13: 11,946,886 km (0.059 R)
• M14: 12,465,093 km (0.032 R)
• M15: 13,146,362 km (0.087 R)
• M16: 14,058,759 km (0.052 R)
• M17: 20,980,952 km (0.06 R)
• M18: 21,945,708 km (0.05 R)
• M19: 22,581,499 km (0.095 R)
• M20: 23,156,703 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 514.7

Radius: 11.1

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 4.31 AU - 4.43 AU

Year: 6306 Days

Day: 8.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 67,413,590 km

• M1: 138,079 km (0.111 R)
• M2: 501,452 km (0.082 R)
• M3: 1,107,024 km (0.115 R)
• M4: 1,861,297 km (0.094 R)
• M5: 2,535,834 km (0.093 R)
• M6: 3,823,123 km (0.114 R)
• M7: 4,547,027 km (0.046 R)
• M8: 5,051,172 km (0.1 R)
• M9: 5,711,198 km (0.066 R)
• M10: 7,273,748 km (0.113 R)
• M11: 7,965,039 km (0.031 R)
• M12: 8,981,258 km (0.079 R)
• M13: 10,348,283 km (0.114 R)
• M14: 11,557,483 km (0.072 R)
• M15: 12,246,381 km (0.066 R)
• M16: 13,330,816 km (0.101 R)
• M17: 14,366,183 km (0.071 R)
• M18: 18,118,845 km (0.096 R)
• M19: 18,513,484 km (0.114 R)
• M20: 19,525,364 km (0.031 R)
• M21: 20,150,085 km (0.109 R)
• M22: 23,708,869 km (0.116 R)
• M23: 24,419,908 km (0.059 R)
• M24: 26,978,181 km (0.119 R)
• M25: 28,454,562 km (0.114 R)
• M26: 29,984,051 km (0.081 R)
• M27: 31,378,453 km (0.095 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 16.2

Radius: 5.5

Gravity: 0.54 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 5.87 AU - 7.75 AU

Year: 12267 Days

Day: 24.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 67,413,590 km

• M1: 68,366 km (0.089 R)
• M2: 916,287 km (0.104 R)
• M3: 5,158,284 km (0.075 R)
• M4: 7,096,325 km (0.067 R)
• M5: 7,546,614 km (0.113 R)
• M6: 10,949,517 km (0.091 R)
• M7: 12,735,865 km (0.067 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 998.4

Radius: 5.4

Gravity: 34.24 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 7.82 AU - 11 AU

Year: 19925 Days

Day: 16.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 67,413,590 km

• M1: 68,217 km (0.104 R)
• M2: 351,555 km (0.077 R)
• M3: 527,931 km (0.042 R)
• M4: 775,964 km (0.093 R)
• M5: 958,025 km (0.079 R)
• M6: 1,154,896 km (0.1 R)
• M7: 1,759,570 km (0.12 R)
• M8: 3,506,724 km (0.1 R)
• M9: 4,748,236 km (0.098 R)
• M10: 10,307,742 km (0.107 R)
• M11: 12,018,543 km (0.087 R)
• M12: 17,370,258 km (0.057 R)
• M13: 21,363,623 km (0.103 R)
• M14: 21,773,222 km (0.12 R)
• M15: 22,292,476 km (0.098 R)
• M16: 27,343,349 km (0.11 R)
• M17: 39,322,698 km (0.101 R)
• M18: 41,029,310 km (0.117 R)
• M19: 41,980,603 km (0.094 R)
• M20: 71,486,091 km (0.103 R)
• M21: 71,714,227 km (0.058 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 480

Radius: 6.2

Gravity: 12.49 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 7.67 AU - 11.15 AU

Year: 19925 Days

Day: 18.1 Hours

Environment

Temp: -232 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 67,413,590 km

• M1: 77,193 km (0.078 R)
• M2: 683,064 km (0.104 R)
• M3: 1,462,319 km (0.085 R)
• M4: 1,931,757 km (0.117 R)
• M5: 3,245,077 km (0.115 R)
• M6: 4,517,257 km (0.117 R)
• M7: 4,924,762 km (0.084 R)
• M8: 6,674,159 km (0.106 R)
• M9: 10,977,492 km (0.108 R)
• M10: 12,745,290 km (0.112 R)
• M11: 17,646,415 km (0.095 R)
• M12: 18,230,146 km (0.103 R)
• M13: 21,343,427 km (0.101 R)
• M14: 22,197,781 km (0.065 R)
• M15: 24,793,753 km (0.115 R)
• M16: 28,826,911 km (0.113 R)
• M17: 34,166,957 km (0.071 R)
• M18: 40,993,856 km (0.106 R)
• M19: 45,808,813 km (0.065 R)
• M20: 48,838,918 km (0.05 R)
• M21: 49,165,340 km (0.119 R)
• M22: 52,682,386 km (0.054 R)
• M23: 53,198,050 km (0.119 R)
• M24: 63,647,910 km (0.056 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 204 - 16,786 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit