🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 354

Radius: 9.4

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 0.54 AU - 0.6 AU

Year: 297 Days

Day: 13.5 Hours

Environment

Temp: -154 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 76,285,040 km

• M1: 117,734 km (0.091 R)
• M2: 427,551 km (0.093 R)
• M3: 931,845 km (0.073 R)
• M4: 1,250,189 km (0.047 R)
• M5: 2,469,412 km (0.078 R)
• M6: 2,962,786 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 365.5

Radius: 10.5

Gravity: 3.32 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.9 AU - 0.9 AU

Year: 589 Days

Day: 6.8 Hours

Environment

Temp: -168 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 76,285,040 km

• M1: 130,599 km (0.093 R)
• M2: 466,895 km (0.107 R)
• M3: 833,111 km (0.049 R)
• M4: 1,196,783 km (0.118 R)
• M5: 1,583,942 km (0.063 R)
• M6: 1,916,947 km (0.119 R)
• M7: 2,288,399 km (0.093 R)
• M8: 3,023,373 km (0.072 R)
• M9: 3,363,259 km (0.086 R)
• M10: 3,779,740 km (0.087 R)
• M11: 4,426,302 km (0.114 R)
• M12: 5,192,392 km (0.107 R)
• M13: 5,682,924 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 290.6

Radius: 14

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.33 AU - 1.47 AU

Year: 1143 Days

Day: 10.1 Hours

Environment

Temp: -179 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 76,285,040 km

• M1: 174,730 km (0.091 R)
• M2: 637,437 km (0.111 R)
• M3: 1,151,904 km (0.103 R)
• M4: 1,594,863 km (0.12 R)
• M5: 2,362,898 km (0.059 R)
• M6: 2,928,079 km (0.098 R)
• M7: 3,865,609 km (0.048 R)
• M8: 4,334,150 km (0.063 R)
• M9: 5,029,780 km (0.103 R)
• M10: 5,954,145 km (0.114 R)
• M11: 6,923,689 km (0.104 R)
• M12: 7,829,504 km (0.049 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 194.4

Radius: 14.6

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 1.23 AU - 2.03 AU

Year: 1436 Days

Day: 5.8 Hours

Environment

Temp: -187 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 76,285,040 km

• M1: 191,934 km (0.104 R)
• M2: 1,350,420 km (0.057 R)
• M3: 3,057,930 km (0.111 R)
• M4: 5,886,826 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 347.5

Radius: 12.5

Gravity: 2.22 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.77 AU - 1.79 AU

Year: 1639 Days

Day: 9.7 Hours

Environment

Temp: -189 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 76,285,040 km

• M1: 155,432 km (0.1 R)
• M2: 561,291 km (0.077 R)
• M3: 1,004,251 km (0.095 R)
• M4: 1,698,235 km (0.109 R)
• M5: 2,757,238 km (0.105 R)
• M6: 3,914,527 km (0.091 R)
• M7: 6,405,930 km (0.106 R)
• M8: 7,905,200 km (0.07 R)
• M9: 8,836,297 km (0.119 R)
• M10: 10,916,755 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 517.7

Radius: 13

Gravity: 3.06 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 1.77 AU - 2.75 AU

Year: 2345 Days

Day: 13.3 Hours

Environment

Temp: -200 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 76,285,040 km

• M1: 161,715 km (0.094 R)
• M2: 1,070,971 km (0.114 R)
• M3: 2,368,583 km (0.106 R)
• M4: 2,823,361 km (0.114 R)
• M5: 3,713,169 km (0.087 R)
• M6: 4,803,288 km (0.061 R)
• M7: 5,286,190 km (0.117 R)
• M8: 5,947,712 km (0.11 R)
• M9: 6,690,316 km (0.11 R)
• M10: 7,379,513 km (0.084 R)
• M11: 10,046,993 km (0.063 R)
• M12: 11,481,637 km (0.11 R)
• M13: 12,068,359 km (0.108 R)
• M14: 12,923,461 km (0.067 R)
• M15: 13,644,822 km (0.117 R)
• M16: 14,708,762 km (0.07 R)
• M17: 15,401,400 km (0.115 R)
• M18: 16,115,580 km (0.087 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.7

Radius: 9.4

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 3.03 AU - 3.21 AU

Year: 3804 Days

Day: 11.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 76,285,040 km

• M1: 116,836 km (0.104 R)
• M2: 1,164,619 km (0.069 R)
• M3: 1,513,930 km (0.12 R)
• M4: 2,371,425 km (0.032 R)
• M5: 3,173,569 km (0.076 R)
• M6: 4,729,686 km (0.083 R)
• M7: 5,843,592 km (0.103 R)
• M8: 7,099,317 km (0.091 R)
• M9: 7,547,063 km (0.085 R)
• M10: 8,416,675 km (0.118 R)
• M11: 9,381,133 km (0.11 R)

Asteroid Belt

Center: 3.59 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 4.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 599.5

Radius: 11.9

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 3.5 AU - 4.6 AU

Year: 5626 Days

Day: 6.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 76,285,040 km

• M1: 148,102 km (0.08 R)
• M2: 639,680 km (0.028 R)
• M3: 1,021,604 km (0.113 R)
• M4: 1,908,869 km (0.109 R)
• M5: 2,586,098 km (0.089 R)
• M6: 3,234,605 km (0.096 R)
• M7: 3,965,690 km (0.117 R)
• M8: 6,373,916 km (0.036 R)
• M9: 6,764,965 km (0.114 R)
• M10: 7,346,452 km (0.098 R)
• M11: 7,776,845 km (0.091 R)
• M12: 8,846,919 km (0.078 R)
• M13: 9,883,183 km (0.114 R)
• M14: 11,091,336 km (0.082 R)
• M15: 12,195,966 km (0.051 R)
• M16: 12,955,176 km (0.094 R)
• M17: 15,191,215 km (0.11 R)
• M18: 16,129,942 km (0.118 R)
• M19: 17,546,633 km (0.094 R)
• M20: 21,703,809 km (0.076 R)
• M21: 22,219,323 km (0.12 R)
• M22: 22,818,462 km (0.065 R)
• M23: 25,323,628 km (0.114 R)
• M24: 25,977,521 km (0.047 R)
• M25: 28,093,732 km (0.041 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 612

Radius: 4.8

Gravity: 26.56 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 8.08 AU - 11.56 AU

Year: 21241 Days

Day: 20.2 Hours

Environment

Temp: -240 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 76,285,040 km

• M1: 90,656 km (0.114 R)
• M2: 395,986 km (0.12 R)
• M3: 755,619 km (0.107 R)
• M4: 1,368,821 km (0.038 R)
• M5: 2,464,924 km (0.079 R)
• M6: 3,920,811 km (0.078 R)
• M7: 12,129,246 km (0.118 R)
• M8: 12,535,254 km (0.115 R)
• M9: 13,517,963 km (0.117 R)
• M10: 15,009,304 km (0.102 R)
• M11: 15,242,078 km (0.056 R)
• M12: 15,714,808 km (0.09 R)
• M13: 23,294,782 km (0.045 R)
• M14: 34,453,886 km (0.108 R)
• M15: 34,859,146 km (0.107 R)
• M16: 39,527,797 km (0.052 R)
• M17: 41,172,027 km (0.083 R)
• M18: 44,436,851 km (0.085 R)
• M19: 61,967,328 km (0.102 R)
• M20: 72,684,519 km (0.11 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 263 - 11,047 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit