🌌 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 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.76

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.52 AU - 0.54 AU

Year: 249 Days

Day: 40.1 Hours

Environment

Temp: -118 °C

Axial Tilt: 18 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 30,848,718 km

• M1: 56,398 km (0.072 R)
• M2: 311,463 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 614.1

Radius: 13.4

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.67 AU - 0.73 AU

Year: 378 Days

Day: 6.2 Hours

Environment

Temp: -136 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 30,848,718 km

• M1: 166,802 km (0.103 R)
• M2: 696,677 km (0.09 R)
• M3: 1,180,926 km (0.104 R)
• M4: 1,709,904 km (0.066 R)
• M5: 2,217,489 km (0.116 R)
• M6: 2,776,536 km (0.108 R)
• M7: 3,613,237 km (0.096 R)
• M8: 4,781,148 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 829.7

Radius: 9

Gravity: 10.24 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.61 AU - 0.81 AU

Year: 386 Days

Day: 8.8 Hours

Environment

Temp: -136 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 30,848,718 km

• M1: 112,198 km (0.069 R)
• M2: 441,314 km (0.053 R)
• M3: 810,671 km (0.099 R)
• M4: 1,418,188 km (0.082 R)
• M5: 1,743,414 km (0.111 R)
• M6: 2,303,358 km (0.086 R)
• M7: 2,787,906 km (0.104 R)
• M8: 3,132,879 km (0.068 R)
• M9: 3,767,174 km (0.107 R)
• M10: 4,929,399 km (0.101 R)
• M11: 5,258,066 km (0.101 R)
• M12: 5,702,372 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 68.9

Radius: 14.8

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 1.08 AU - 1.3 AU

Year: 838 Days

Day: 7.3 Hours

Environment

Temp: -170 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 30,848,718 km

• M1: 184,005 km (0.025 R)
• M2: 1,053,319 km (0.116 R)
• M3: 1,859,801 km (0.057 R)
• M4: 2,503,221 km (0.075 R)
• M5: 3,417,414 km (0.115 R)
• M6: 4,232,722 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 632.8

Radius: 14.6

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.21 AU - 1.75 AU

Year: 1163 Days

Day: 5.6 Hours

Environment

Temp: -179 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 30,848,718 km

• M1: 185,202 km (0.111 R)
• M2: 642,523 km (0.114 R)
• M3: 1,178,382 km (0.104 R)
• M4: 2,001,470 km (0.11 R)
• M5: 2,462,531 km (0.1 R)
• M6: 3,885,356 km (0.077 R)
• M7: 4,686,303 km (0.081 R)
• M8: 5,677,538 km (0.081 R)
• M9: 7,534,497 km (0.083 R)
• M10: 8,643,615 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 504.3

Radius: 10.7

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.41 AU - 1.77 AU

Year: 1295 Days

Day: 7.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 30,848,718 km

• M1: 133,142 km (0.108 R)
• M2: 491,579 km (0.068 R)
• M3: 1,003,054 km (0.066 R)
• M4: 1,460,225 km (0.12 R)
• M5: 2,013,887 km (0.1 R)
• M6: 2,703,383 km (0.11 R)
• M7: 3,453,766 km (0.115 R)
• M8: 3,806,518 km (0.105 R)
• M9: 4,621,527 km (0.111 R)
• M10: 5,386,122 km (0.069 R)
• M11: 5,905,526 km (0.087 R)
• M12: 6,572,582 km (0.055 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 531

Radius: 9.8

Gravity: 5.53 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 2.19 AU - 2.57 AU

Year: 2371 Days

Day: 11 Hours

Environment

Temp: -199 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 30,848,718 km

• M1: 122,371 km (0.061 R)
• M2: 505,491 km (0.116 R)
• M3: 833,709 km (0.112 R)
• M4: 1,193,492 km (0.101 R)
• M5: 1,794,576 km (0.044 R)
• M6: 2,758,585 km (0.064 R)
• M7: 3,174,168 km (0.099 R)
• M8: 3,720,649 km (0.11 R)
• M9: 4,170,789 km (0.097 R)
• M10: 4,957,823 km (0.111 R)
• M11: 6,797,727 km (0.085 R)
• M12: 7,385,647 km (0.069 R)
• M13: 7,766,224 km (0.109 R)
• M14: 8,283,832 km (0.111 R)
• M15: 9,940,479 km (0.047 R)
• M16: 10,772,243 km (0.071 R)
• M17: 13,546,985 km (0.075 R)
• M18: 14,569,037 km (0.117 R)
• M19: 15,689,525 km (0.083 R)
• M20: 16,467,734 km (0.073 R)
• M21: 16,816,147 km (0.1 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 262.9

Radius: 9.1

Gravity: 3.17 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 2.4 AU - 3.82 AU

Year: 3541 Days

Day: 12.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 30,848,718 km

• M1: 115,789 km (0.117 R)
• M2: 435,479 km (0.069 R)
• M3: 849,566 km (0.065 R)
• M4: 1,351,318 km (0.055 R)
• M5: 1,712,746 km (0.106 R)
• M6: 2,052,932 km (0.107 R)
• M7: 3,355,031 km (0.113 R)
• M8: 3,780,488 km (0.11 R)
• M9: 4,383,068 km (0.088 R)
• M10: 5,115,948 km (0.102 R)
• M11: 5,632,360 km (0.108 R)
• M12: 7,838,031 km (0.095 R)
• M13: 8,686,251 km (0.083 R)
• M14: 12,407,498 km (0.117 R)
• M15: 12,995,417 km (0.032 R)
• M16: 13,470,391 km (0.077 R)
• M17: 13,823,142 km (0.089 R)
• M18: 14,778,175 km (0.116 R)
• M19: 16,119,320 km (0.081 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 416.3

Radius: 8.5

Gravity: 5.76 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 2.85 AU - 3.89 AU

Year: 3994 Days

Day: 5.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 30,848,718 km

• M1: 105,766 km (0.095 R)
• M2: 486,492 km (0.108 R)
• M3: 937,081 km (0.099 R)
• M4: 1,289,384 km (0.054 R)
• M5: 2,294,981 km (0.07 R)
• M6: 2,961,888 km (0.097 R)
• M7: 3,499,393 km (0.028 R)
• M8: 4,934,785 km (0.079 R)
• M9: 5,328,826 km (0.106 R)
• M10: 5,904,778 km (0.105 R)
• M11: 6,550,741 km (0.117 R)
• M12: 7,655,073 km (0.039 R)
• M13: 7,949,631 km (0.077 R)
• M14: 8,319,886 km (0.042 R)
• M15: 9,131,304 km (0.029 R)
• M16: 9,955,888 km (0.12 R)
• M17: 10,228,306 km (0.097 R)
• M18: 14,837,865 km (0.101 R)
• M19: 15,245,220 km (0.04 R)
• M20: 16,242,589 km (0.079 R)
• M21: 16,729,829 km (0.099 R)
• M22: 18,250,491 km (0.077 R)

Planet 10 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 669.2

Radius: 14.3

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 3.31 AU - 4.75 AU

Year: 5224 Days

Day: 6 Hours

Environment

Temp: -205 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 30,848,718 km

• M1: 177,872 km (0.113 R)
• M2: 704,606 km (0.099 R)
• M3: 1,393,953 km (0.042 R)
• M4: 2,170,366 km (0.105 R)
• M5: 2,790,449 km (0.118 R)
• M6: 3,341,867 km (0.092 R)
• M7: 4,127,854 km (0.119 R)
• M8: 5,768,643 km (0.113 R)
• M9: 7,277,338 km (0.109 R)
• M10: 8,562,085 km (0.041 R)
• M11: 10,209,755 km (0.101 R)
• M12: 21,221,954 km (0.097 R)
• M13: 23,443,183 km (0.042 R)
• M14: 23,905,441 km (0.111 R)
• M15: 28,868,649 km (0.098 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 417 - 19,069 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit