🌌 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: 309.7

Radius: 9.2

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.49 AU - 0.57 AU

Year: 257 Days

Day: 10.1 Hours

Environment

Temp: -142 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 80,253,473 km

• M1: 117,285 km (0.069 R)
• M2: 452,085 km (0.073 R)
• M3: 739,761 km (0.034 R)
• M4: 1,644,679 km (0.106 R)
• M5: 1,934,001 km (0.066 R)
• M6: 2,406,282 km (0.03 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865

Radius: 12.5

Gravity: 5.54 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.44 AU - 0.72 AU

Year: 295 Days

Day: 12.3 Hours

Environment

Temp: -154 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 80,253,473 km

• M1: 155,432 km (0.09 R)
• M2: 597,494 km (0.116 R)
• M3: 1,037,162 km (0.083 R)
• M4: 1,457,682 km (0.118 R)
• M5: 2,306,500 km (0.108 R)
• M6: 2,755,892 km (0.059 R)
• M7: 3,575,090 km (0.061 R)
• M8: 3,967,934 km (0.097 R)
• M9: 4,912,794 km (0.054 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 540

Radius: 11.6

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.77 AU - 0.93 AU

Year: 523 Days

Day: 12.2 Hours

Environment

Temp: -169 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 80,253,473 km

• M1: 145,260 km (0.089 R)
• M2: 631,602 km (0.107 R)
• M3: 999,164 km (0.039 R)
• M4: 1,392,158 km (0.118 R)
• M5: 2,087,189 km (0.114 R)
• M6: 2,505,615 km (0.116 R)
• M7: 2,871,830 km (0.05 R)
• M8: 3,345,008 km (0.118 R)
• M9: 4,263,839 km (0.103 R)
• M10: 4,790,273 km (0.064 R)
• M11: 5,294,418 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 358.9

Radius: 11.3

Gravity: 2.81 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.81 AU - 0.89 AU

Year: 523 Days

Day: 6.3 Hours

Environment

Temp: -174 °C

Axial Tilt: 131.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 80,253,473 km

• M1: 140,622 km (0.047 R)
• M2: 588,668 km (0.099 R)
• M3: 1,049,579 km (0.116 R)
• M4: 1,456,036 km (0.069 R)
• M5: 2,079,710 km (0.115 R)
• M6: 2,477,341 km (0.092 R)
• M7: 3,886,852 km (0.083 R)
• M8: 4,304,230 km (0.103 R)
• M9: 4,693,932 km (0.036 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 143.1

Radius: 15

Gravity: 0.64 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 3.31 AU - 5.05 AU

Year: 5699 Days

Day: 6.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 80,253,473 km

• M1: 186,549 km (0.104 R)
• M2: 914,492 km (0.09 R)
• M3: 1,621,192 km (0.101 R)
• M4: 2,171,413 km (0.1 R)
• M5: 2,770,253 km (0.08 R)
• M6: 4,003,837 km (0.111 R)
• M7: 5,144,521 km (0.106 R)
• M8: 6,141,741 km (0.093 R)
• M9: 6,686,875 km (0.069 R)
• M10: 7,383,852 km (0.067 R)
• M11: 11,540,728 km (0.106 R)
• M12: 13,562,992 km (0.068 R)
• M13: 15,166,531 km (0.069 R)
• M14: 17,641,329 km (0.104 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 386.1

Radius: 6.1

Gravity: 10.38 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 4.75 AU - 7.15 AU

Year: 9678 Days

Day: 17.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 80,253,473 km

• M1: 76,145 km (0.059 R)
• M2: 1,415,495 km (0.054 R)
• M3: 2,369,481 km (0.07 R)
• M4: 3,150,082 km (0.103 R)
• M5: 4,794,013 km (0.042 R)
• M6: 6,685,828 km (0.087 R)
• M7: 10,307,144 km (0.079 R)
• M8: 11,395,319 km (0.087 R)
• M9: 14,567,841 km (0.106 R)
• M10: 16,192,773 km (0.111 R)
• M11: 19,139,402 km (0.1 R)
• M12: 19,872,581 km (0.119 R)
• M13: 20,472,319 km (0.104 R)
• M14: 21,161,516 km (0.095 R)
• M15: 25,537,105 km (0.079 R)
• M16: 27,702,982 km (0.109 R)
• M17: 29,309,065 km (0.073 R)
• M18: 35,255,730 km (0.065 R)
• M19: 36,356,023 km (0.095 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 510.1

Radius: 7.3

Gravity: 9.57 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 7.71 AU - 7.81 AU

Year: 14415 Days

Day: 19.4 Hours

Environment

Temp: -236 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 80,253,473 km

• M1: 93,349 km (0.078 R)
• M2: 339,438 km (0.081 R)
• M3: 2,546,305 km (0.043 R)
• M4: 3,033,097 km (0.119 R)
• M5: 3,606,805 km (0.059 R)
• M6: 4,935,533 km (0.102 R)
• M7: 7,009,707 km (0.113 R)
• M8: 8,952,685 km (0.1 R)
• M9: 15,361,757 km (0.093 R)
• M10: 17,189,543 km (0.103 R)
• M11: 24,677,366 km (0.104 R)
• M12: 27,692,959 km (0.109 R)
• M13: 30,497,920 km (0.09 R)
• M14: 32,431,023 km (0.073 R)
• M15: 39,243,112 km (0.082 R)
• M16: 40,711,265 km (0.045 R)
• M17: 42,632,102 km (0.059 R)
• M18: 45,479,997 km (0.092 R)
• M19: 50,921,170 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 659.7

Radius: 6.8

Gravity: 14.27 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 9.62 AU - 11 AU

Year: 22076 Days

Day: 21 Hours

Environment

Temp: -235 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 80,253,473 km

• M1: 84,523 km (0.075 R)
• M2: 394,789 km (0.082 R)
• M3: 651,948 km (0.065 R)
• M4: 926,609 km (0.029 R)
• M5: 1,680,134 km (0.091 R)
• M6: 7,837,133 km (0.093 R)
• M7: 8,302,083 km (0.11 R)
• M8: 14,163,478 km (0.038 R)
• M9: 16,134,579 km (0.037 R)
• M10: 30,508,990 km (0.117 R)
• M11: 33,233,915 km (0.11 R)
• M12: 33,636,034 km (0.074 R)
• M13: 34,999,619 km (0.106 R)
• M14: 44,774,044 km (0.112 R)
• M15: 45,924,153 km (0.093 R)
• M16: 46,256,260 km (0.107 R)
• M17: 47,093,709 km (0.08 R)
• M18: 69,910,376 km (0.106 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: 468 - 14,341 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit