🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 532.1

Radius: 10.7

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.43 AU - 0.63 AU

Year: 257 Days

Day: 13.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 28,248,827 km

• M1: 132,993 km (0.065 R)
• M2: 574,605 km (0.105 R)
• M3: 1,068,877 km (0.089 R)
• M4: 1,799,363 km (0.117 R)
• M5: 2,214,796 km (0.088 R)
• M6: 2,642,198 km (0.12 R)
• M7: 2,991,658 km (0.082 R)
• M8: 3,412,926 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 147.3

Radius: 13

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.48 AU - 0.6 AU

Year: 265 Days

Day: 13.9 Hours

Environment

Temp: -152 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 28,248,827 km

• M1: 161,715 km (0.078 R)
• M2: 829,819 km (0.091 R)
• M3: 1,547,141 km (0.04 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 128.6

Radius: 10

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.55 AU - 0.59 AU

Year: 287 Days

Day: 6.1 Hours

Environment

Temp: -149 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 28,248,827 km

• M1: 124,316 km (0.063 R)
• M2: 482,752 km (0.088 R)
• M3: 1,112,410 km (0.052 R)
• M4: 1,529,339 km (0.056 R)
• M5: 1,921,136 km (0.064 R)
• M6: 2,236,787 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 144

Radius: 14.7

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.54 AU - 0.88 AU

Year: 399 Days

Day: 14.6 Hours

Environment

Temp: -165 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 28,248,827 km

• M1: 182,958 km (0.04 R)
• M2: 656,286 km (0.109 R)
• M3: 1,266,047 km (0.05 R)
• M4: 1,923,081 km (0.097 R)
• M5: 2,529,251 km (0.071 R)
• M6: 3,070,795 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 590.2

Radius: 10.7

Gravity: 5.16 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.77 AU - 0.85 AU

Year: 486 Days

Day: 12.2 Hours

Environment

Temp: -170 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 28,248,827 km

• M1: 133,142 km (0.117 R)
• M2: 466,895 km (0.057 R)
• M3: 1,017,714 km (0.108 R)
• M4: 1,359,695 km (0.116 R)
• M5: 1,727,556 km (0.114 R)
• M6: 2,425,729 km (0.082 R)
• M7: 3,040,726 km (0.116 R)
• M8: 4,127,555 km (0.069 R)
• M9: 4,465,048 km (0.061 R)
• M10: 4,805,682 km (0.085 R)
• M11: 5,777,470 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187

Radius: 10.6

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.39 AU - 1.99 AU

Year: 1465 Days

Day: 9.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 28,248,827 km

• M1: 131,796 km (0.045 R)
• M2: 644,468 km (0.077 R)
• M3: 1,335,311 km (0.114 R)
• M4: 2,702,635 km (0.067 R)
• M5: 3,736,207 km (0.079 R)
• M6: 4,375,439 km (0.094 R)
• M7: 5,068,226 km (0.057 R)
• M8: 6,212,201 km (0.101 R)
• M9: 6,976,646 km (0.106 R)
• M10: 8,092,198 km (0.081 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 803.1

Radius: 12.9

Gravity: 4.83 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 2.19 AU - 2.45 AU

Year: 2356 Days

Day: 10.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 28,248,827 km

• M1: 160,369 km (0.088 R)
• M2: 584,778 km (0.109 R)
• M3: 1,638,695 km (0.083 R)
• M4: 2,058,317 km (0.083 R)
• M5: 2,818,274 km (0.108 R)
• M6: 3,429,382 km (0.055 R)
• M7: 3,872,191 km (0.049 R)
• M8: 4,437,073 km (0.11 R)
• M9: 5,315,512 km (0.047 R)
• M10: 5,809,334 km (0.074 R)
• M11: 6,415,056 km (0.092 R)
• M12: 7,538,386 km (0.108 R)
• M13: 8,035,500 km (0.073 R)
• M14: 8,654,386 km (0.06 R)
• M15: 9,624,229 km (0.094 R)
• M16: 10,322,851 km (0.105 R)
• M17: 12,238,602 km (0.107 R)
• M18: 12,839,536 km (0.066 R)
• M19: 14,100,497 km (0.11 R)
• M20: 14,617,956 km (0.111 R)
• M21: 15,941,897 km (0.071 R)
• M22: 16,400,564 km (0.039 R)
• M23: 17,078,542 km (0.092 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 142.6

Radius: 11.7

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 3.6 AU - 5.22 AU

Year: 6176 Days

Day: 9.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 49.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 28,248,827 km

• M1: 145,559 km (0.115 R)
• M2: 589,715 km (0.064 R)
• M3: 956,678 km (0.113 R)
• M4: 1,682,826 km (0.064 R)
• M5: 2,337,766 km (0.108 R)
• M6: 2,764,419 km (0.086 R)
• M7: 6,408,773 km (0.075 R)
• M8: 6,983,079 km (0.091 R)
• M9: 9,125,321 km (0.12 R)
• M10: 9,890,364 km (0.06 R)
• M11: 10,385,084 km (0.054 R)
• M12: 11,757,645 km (0.107 R)
• M13: 12,226,634 km (0.119 R)
• M14: 13,111,356 km (0.033 R)
• M15: 13,569,574 km (0.087 R)
• M16: 14,038,264 km (0.04 R)
• M17: 18,470,999 km (0.063 R)
• M18: 18,989,056 km (0.104 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 213.4

Radius: 14.4

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 4.46 AU - 6.82 AU

Year: 8932 Days

Day: 10.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 71 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 28,248,827 km

• M1: 179,069 km (0.105 R)
• M2: 865,274 km (0.03 R)
• M3: 1,565,243 km (0.047 R)
• M4: 3,554,745 km (0.069 R)
• M5: 4,440,214 km (0.112 R)
• M6: 10,366,833 km (0.066 R)
• M7: 11,690,176 km (0.117 R)
• M8: 12,868,259 km (0.118 R)
• M9: 13,591,116 km (0.107 R)
• M10: 17,370,557 km (0.059 R)
• M11: 17,935,289 km (0.097 R)
• M12: 21,584,579 km (0.069 R)
• M13: 29,071,354 km (0.111 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 85.9

Radius: 7.6

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 6.89 AU - 7.43 AU

Year: 12776 Days

Day: 22.8 Hours

Environment

Temp: -233 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 28,248,827 km

• M1: 94,546 km (0.113 R)
• M2: 366,515 km (0.082 R)
• M3: 1,397,095 km (0.067 R)
• M4: 1,923,529 km (0.083 R)
• M5: 4,122,169 km (0.112 R)
• M6: 7,303,368 km (0.088 R)
• M7: 10,779,125 km (0.048 R)
• M8: 14,028,540 km (0.099 R)
• M9: 16,603,568 km (0.119 R)
• M10: 17,507,140 km (0.086 R)
• M11: 26,350,468 km (0.06 R)
• M12: 26,837,260 km (0.075 R)
• M13: 28,164,492 km (0.092 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: 425 - 13,172 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit