🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 994.9

Radius: 8.3

Gravity: 14.44 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.49 AU - 0.71 AU

Year: 310 Days

Day: 11.8 Hours

Environment

Temp: -142 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 71,433,810 km

• M1: 103,223 km (0.089 R)
• M2: 369,357 km (0.105 R)
• M3: 684,111 km (0.084 R)
• M4: 972,386 km (0.092 R)
• M5: 1,289,683 km (0.119 R)
• M6: 1,682,976 km (0.102 R)
• M7: 2,088,386 km (0.084 R)
• M8: 2,399,999 km (0.078 R)
• M9: 2,722,681 km (0.106 R)
• M10: 3,074,236 km (0.08 R)
• M11: 3,432,523 km (0.094 R)
• M12: 3,818,635 km (0.106 R)
• M13: 4,328,315 km (0.085 R)
• M14: 4,592,505 km (0.058 R)
• M15: 4,956,776 km (0.073 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 266.3

Radius: 11.5

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.6 AU - 1 AU

Year: 477 Days

Day: 12.9 Hours

Environment

Temp: -171 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 71,433,810 km

• M1: 144,512 km (0.111 R)
• M2: 502,499 km (0.116 R)
• M3: 1,284,747 km (0.108 R)
• M4: 1,712,148 km (0.108 R)
• M5: 2,692,762 km (0.043 R)
• M6: 3,089,645 km (0.102 R)
• M7: 3,615,332 km (0.082 R)
• M8: 4,522,493 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 406.3

Radius: 11.4

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.92 AU - 1.36 AU

Year: 812 Days

Day: 14.9 Hours

Environment

Temp: -184 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,433,810 km

• M1: 141,819 km (0.06 R)
• M2: 523,144 km (0.064 R)
• M3: 955,930 km (0.081 R)
• M4: 1,499,270 km (0.086 R)
• M5: 2,011,792 km (0.101 R)
• M6: 2,693,659 km (0.059 R)
• M7: 3,643,755 km (0.11 R)
• M8: 4,137,428 km (0.076 R)
• M9: 4,723,553 km (0.094 R)
• M10: 5,224,706 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864

Radius: 8.6

Gravity: 11.68 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.16 AU - 1.4 AU

Year: 966 Days

Day: 9.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 71,433,810 km

• M1: 106,962 km (0.093 R)
• M2: 636,240 km (0.09 R)
• M3: 1,110,315 km (0.113 R)
• M4: 1,651,112 km (0.069 R)
• M5: 2,002,517 km (0.086 R)
• M6: 2,509,205 km (0.103 R)
• M7: 2,806,007 km (0.102 R)
• M8: 3,281,280 km (0.11 R)
• M9: 4,085,667 km (0.109 R)
• M10: 4,498,707 km (0.077 R)
• M11: 5,368,469 km (0.054 R)
• M12: 5,654,351 km (0.108 R)
• M13: 6,619,556 km (0.099 R)
• M14: 7,639,814 km (0.079 R)
• M15: 8,002,140 km (0.097 R)
• M16: 8,321,830 km (0.105 R)
• M17: 9,158,531 km (0.039 R)
• M18: 9,867,326 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 878.8

Radius: 9.7

Gravity: 9.34 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.36 AU - 1.44 AU

Year: 1105 Days

Day: 11.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 166.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 71,433,810 km

• M1: 120,576 km (0.081 R)
• M2: 425,307 km (0.077 R)
• M3: 1,118,094 km (0.115 R)
• M4: 1,770,491 km (0.037 R)
• M5: 2,238,882 km (0.096 R)
• M6: 2,697,399 km (0.064 R)
• M7: 3,074,685 km (0.088 R)
• M8: 3,564,319 km (0.085 R)
• M9: 4,441,262 km (0.107 R)
• M10: 4,969,791 km (0.117 R)
• M11: 5,775,375 km (0.105 R)
• M12: 6,382,294 km (0.054 R)
• M13: 7,156,164 km (0.064 R)
• M14: 7,565,912 km (0.114 R)
• M15: 8,072,750 km (0.103 R)
• M16: 11,088,793 km (0.119 R)
• M17: 11,533,846 km (0.063 R)
• M18: 11,990,718 km (0.111 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 11.1

Radius: 4.1

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 5.18 AU - 8.16 AU

Year: 11487 Days

Day: 21.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 71,433,810 km

• M1: 53,257 km (0.114 R)
• M2: 255,663 km (0.105 R)
• M3: 581,188 km (0.115 R)
• M4: 1,218,923 km (0.079 R)
• M5: 2,126,384 km (0.063 R)
• M6: 2,786,859 km (0.089 R)
• M7: 3,657,219 km (0.05 R)
• M8: 5,227,997 km (0.097 R)
• M9: 7,683,945 km (0.057 R)
• M10: 8,334,546 km (0.051 R)
• M11: 9,394,148 km (0.084 R)
• M12: 11,271,003 km (0.112 R)
• M13: 12,221,847 km (0.103 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 924.7

Radius: 3.6

Gravity: 71.35 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 7.38 AU - 9.02 AU

Year: 15659 Days

Day: 23.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 71,433,810 km

• M1: 51,312 km (0.082 R)
• M2: 171,290 km (0.053 R)
• M3: 348,264 km (0.025 R)
• M4: 668,852 km (0.059 R)
• M5: 1,270,834 km (0.076 R)
• M6: 2,130,573 km (0.113 R)
• M7: 2,362,150 km (0.082 R)
• M8: 2,495,442 km (0.048 R)
• M9: 2,657,157 km (0.094 R)
• M10: 2,825,904 km (0.103 R)
• M11: 3,001,831 km (0.096 R)
• M12: 5,221,265 km (0.106 R)
• M13: 5,371,760 km (0.082 R)
• M14: 7,695,614 km (0.028 R)
• M15: 10,553,083 km (0.097 R)
• M16: 12,249,074 km (0.082 R)
• M17: 12,514,759 km (0.06 R)
• M18: 13,973,638 km (0.075 R)
• M19: 15,932,024 km (0.119 R)
• M20: 19,740,636 km (0.077 R)
• M21: 20,014,101 km (0.076 R)
• M22: 20,290,258 km (0.06 R)
• M23: 21,133,691 km (0.119 R)
• M24: 25,166,251 km (0.051 R)
• M25: 27,249,551 km (0.082 R)
• M26: 28,160,154 km (0.045 R)
• M27: 28,739,397 km (0.11 R)
• M28: 34,183,861 km (0.117 R)
• M29: 40,569,746 km (0.112 R)
• M30: 40,716,800 km (0.084 R)
• M31: 47,869,823 km (0.1 R)
• M32: 56,545,901 km (0.093 R)
• M33: 58,398,222 km (0.086 R)
• M34: 61,833,587 km (0.099 R)
• M35: 70,368,295 km (0.041 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 227 - 17,571 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit