🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.63

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.67 AU - 0.81 AU

Year: 231 Days

Day: 32.1 Hours

Environment

Temp: 161 °C

Axial Tilt: 32.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.66

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 1.61 AU - 1.81 AU

Year: 813 Days

Day: 24 Hours

Environment

Temp: -48 °C

Axial Tilt: 25.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 5.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 573.7

Radius: 12.2

Gravity: 3.85 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 4.89 AU - 5.79 AU

Year: 4485 Days

Day: 7.2 Hours

Environment

Temp: -142 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 58,160,060 km

• M1: 155,432 km (0.103 R)
• M2: 652,696 km (0.074 R)
• M3: 1,038,658 km (0.093 R)
• M4: 1,431,652 km (0.048 R)
• M5: 1,836,314 km (0.086 R)
• M6: 2,273,738 km (0.065 R)
• M7: 3,746,828 km (0.07 R)
• M8: 4,227,636 km (0.098 R)
• M9: 4,675,681 km (0.102 R)
• M10: 5,612,613 km (0.111 R)
• M11: 6,394,411 km (0.12 R)
• M12: 8,391,244 km (0.101 R)
• M13: 9,064,135 km (0.109 R)
• M14: 9,453,239 km (0.079 R)
• M15: 11,035,087 km (0.025 R)
• M16: 11,614,928 km (0.033 R)
• M17: 13,577,353 km (0.065 R)
• M18: 16,373,038 km (0.032 R)
• M19: 21,735,374 km (0.119 R)
• M20: 25,459,164 km (0.03 R)

Planet 4 - Gas Giant

Semi-Major Axis: 10.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 518.6

Radius: 10.2

Gravity: 4.98 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 9.58 AU - 11.32 AU

Year: 12277 Days

Day: 7 Hours

Environment

Temp: -172 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 58,160,060 km

• M1: 126,859 km (0.085 R)
• M2: 520,601 km (0.098 R)
• M3: 965,056 km (0.115 R)
• M4: 1,283,400 km (0.073 R)
• M5: 1,644,230 km (0.04 R)
• M6: 2,196,396 km (0.117 R)
• M7: 3,802,179 km (0.067 R)
• M8: 4,127,106 km (0.086 R)
• M9: 4,589,214 km (0.039 R)
• M10: 5,721,670 km (0.099 R)
• M11: 8,622,073 km (0.11 R)
• M12: 9,925,819 km (0.072 R)
• M13: 12,799,295 km (0.054 R)
• M14: 14,621,995 km (0.048 R)
• M15: 15,424,588 km (0.104 R)
• M16: 16,115,730 km (0.115 R)
• M17: 20,291,156 km (0.092 R)
• M18: 31,027,496 km (0.075 R)
• M19: 33,369,151 km (0.045 R)
• M20: 36,307,553 km (0.108 R)
• M21: 37,529,917 km (0.091 R)
• M22: 40,185,429 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 10.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 48.8

Radius: 13.5

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 9.32 AU - 11.74 AU

Year: 12419 Days

Day: 7.6 Hours

Environment

Temp: -174 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 58,160,060 km

• M1: 167,998 km (0.082 R)
• M2: 4,968,444 km (0.114 R)
• M3: 8,153,383 km (0.099 R)
• M4: 9,328,175 km (0.103 R)
• M5: 12,550,364 km (0.052 R)
• M6: 13,483,406 km (0.107 R)
• M7: 21,290,619 km (0.045 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 206.6

Radius: 8.2

Gravity: 3.07 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 9.49 AU - 12.21 AU

Year: 12989 Days

Day: 13.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 58,160,060 km

• M1: 104,569 km (0.102 R)
• M2: 393,742 km (0.061 R)
• M3: 1,195,586 km (0.117 R)
• M4: 1,752,389 km (0.095 R)
• M5: 2,229,457 km (0.09 R)
• M6: 2,790,599 km (0.11 R)
• M7: 3,115,226 km (0.061 R)
• M8: 3,397,667 km (0.065 R)
• M9: 5,719,875 km (0.065 R)
• M10: 6,178,691 km (0.054 R)
• M11: 10,060,008 km (0.096 R)
• M12: 12,261,939 km (0.066 R)
• M13: 12,694,277 km (0.101 R)
• M14: 14,706,219 km (0.117 R)
• M15: 17,661,824 km (0.086 R)
• M16: 24,803,177 km (0.099 R)
• M17: 28,767,671 km (0.073 R)
• M18: 31,298,418 km (0.084 R)
• M19: 36,464,631 km (0.084 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 543.3

Radius: 7.7

Gravity: 9.16 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 12.44 AU - 13.28 AU

Year: 16761 Days

Day: 24.6 Hours

Environment

Temp: -184 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 58,160,060 km

• M1: 96,042 km (0.111 R)
• M2: 342,280 km (0.06 R)
• M3: 588,368 km (0.115 R)
• M4: 1,339,799 km (0.119 R)
• M5: 1,783,506 km (0.112 R)
• M6: 2,124,888 km (0.112 R)
• M7: 2,552,588 km (0.114 R)
• M8: 3,746,978 km (0.059 R)
• M9: 4,156,726 km (0.026 R)
• M10: 6,837,371 km (0.115 R)
• M11: 7,540,331 km (0.096 R)
• M12: 9,938,684 km (0.109 R)
• M13: 12,546,175 km (0.095 R)
• M14: 12,803,783 km (0.075 R)
• M15: 15,138,108 km (0.084 R)
• M16: 16,405,501 km (0.087 R)
• M17: 20,012,006 km (0.119 R)
• M18: 20,899,720 km (0.071 R)
• M19: 22,374,157 km (0.04 R)
• M20: 25,119,278 km (0.108 R)
• M21: 27,535,882 km (0.115 R)
• M22: 31,032,582 km (0.054 R)
• M23: 32,220,838 km (0.101 R)
• M24: 33,810,465 km (0.065 R)
• M25: 35,580,058 km (0.098 R)
• M26: 36,357,070 km (0.105 R)
• M27: 36,881,410 km (0.091 R)
• M28: 38,484,351 km (0.092 R)
• M29: 42,260,052 km (0.083 R)
• M30: 50,863,874 km (0.069 R)
• M31: 55,227,495 km (0.088 R)
• M32: 56,443,576 km (0.096 R)
• M33: 58,211,673 km (0.114 R)
• M34: 62,605,213 km (0.051 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 139.2

Radius: 6.9

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 16.8 AU - 20.82 AU

Year: 29649 Days

Day: 20.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 58,160,060 km

• M1: 99,632 km (0.072 R)
• M2: 529,876 km (0.062 R)
• M3: 1,106,575 km (0.112 R)
• M4: 1,849,628 km (0.116 R)
• M5: 2,211,057 km (0.082 R)
• M6: 4,512,470 km (0.086 R)
• M7: 4,866,120 km (0.077 R)
• M8: 11,534,445 km (0.102 R)
• M9: 13,074,106 km (0.079 R)
• M10: 13,594,407 km (0.12 R)
• M11: 17,552,468 km (0.079 R)
• M12: 26,085,530 km (0.091 R)

Kuiper Belt

Range: 30.2 - 58.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 270 - 16,911 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit