🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.41

Radius: 0.7

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.53 AU - 0.65 AU

Year: 293 Days

Day: 41.1 Hours

Environment

Temp: -136 °C

Axial Tilt: 38.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 55,741,222 km

• M1: 157,975 km (0.113 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.05

Radius: 1.02

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.58 AU - 0.72 AU

Year: 338 Days

Day: 28.2 Hours

Environment

Temp: -134 °C

Axial Tilt: 46.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 55,741,222 km

• M1: 87,365 km (0.053 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.67

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.52 AU - 0.78 AU

Year: 338 Days

Day: 20.6 Hours

Environment

Temp: -125 °C

Axial Tilt: 9.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 802.5

Radius: 13.8

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.57 AU - 0.85 AU

Year: 386 Days

Day: 6.2 Hours

Environment

Temp: -138 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 55,741,222 km

• M1: 171,589 km (0.101 R)
• M2: 626,516 km (0.101 R)
• M3: 1,078,601 km (0.109 R)
• M4: 2,592,382 km (0.109 R)
• M5: 3,061,670 km (0.086 R)
• M6: 3,648,842 km (0.118 R)
• M7: 4,081,479 km (0.095 R)
• M8: 4,605,819 km (0.048 R)
• M9: 5,723,914 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 154.2

Radius: 14.4

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.63 AU - 1.89 AU

Year: 1508 Days

Day: 7.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,741,222 km

• M1: 188,194 km (0.038 R)
• M2: 643,869 km (0.082 R)
• M3: 1,232,088 km (0.083 R)
• M4: 2,512,795 km (0.104 R)
• M5: 3,132,729 km (0.113 R)
• M6: 3,825,068 km (0.087 R)
• M7: 4,866,419 km (0.115 R)
• M8: 7,553,795 km (0.047 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 998.2

Radius: 8.2

Gravity: 14.85 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 3.41 AU - 4.15 AU

Year: 4745 Days

Day: 12 Hours

Environment

Temp: -218 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 55,741,222 km

• M1: 106,663 km (0.081 R)
• M2: 667,954 km (0.075 R)
• M3: 1,083,837 km (0.117 R)
• M4: 1,443,619 km (0.115 R)
• M5: 1,982,770 km (0.074 R)
• M6: 3,105,353 km (0.091 R)
• M7: 3,611,891 km (0.11 R)
• M8: 3,885,356 km (0.086 R)
• M9: 4,898,433 km (0.054 R)
• M10: 5,615,455 km (0.101 R)
• M11: 8,071,553 km (0.057 R)
• M12: 8,501,198 km (0.049 R)
• M13: 9,838,304 km (0.118 R)
• M14: 11,749,267 km (0.093 R)
• M15: 12,352,595 km (0.111 R)
• M16: 15,207,372 km (0.083 R)
• M17: 19,566,953 km (0.089 R)
• M18: 23,102,698 km (0.03 R)
• M19: 26,018,361 km (0.095 R)
• M20: 27,128,975 km (0.087 R)
• M21: 31,122,341 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.4

Radius: 14.7

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 4.39 AU - 5.25 AU

Year: 6833 Days

Day: 13.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 118.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 55,741,222 km

• M1: 182,809 km (0.045 R)
• M2: 773,122 km (0.064 R)
• M3: 1,466,508 km (0.066 R)
• M4: 2,127,581 km (0.077 R)
• M5: 2,638,458 km (0.109 R)
• M6: 3,123,753 km (0.104 R)
• M7: 3,997,106 km (0.077 R)
• M8: 4,595,946 km (0.08 R)
• M9: 6,976,646 km (0.066 R)
• M10: 8,470,381 km (0.08 R)
• M11: 9,050,073 km (0.069 R)
• M12: 10,208,708 km (0.1 R)
• M13: 11,076,974 km (0.098 R)
• M14: 13,103,577 km (0.106 R)
• M15: 15,314,184 km (0.103 R)
• M16: 16,066,961 km (0.118 R)
• M17: 17,185,205 km (0.105 R)
• M18: 20,982,747 km (0.055 R)
• M19: 21,576,950 km (0.106 R)
• M20: 22,592,270 km (0.086 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 863

Radius: 8

Gravity: 13.48 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 5.92 AU - 7.46 AU

Year: 11173 Days

Day: 18.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 55,741,222 km

• M1: 99,483 km (0.119 R)
• M2: 397,631 km (0.091 R)
• M3: 1,320,949 km (0.082 R)
• M4: 1,601,744 km (0.117 R)
• M5: 2,210,159 km (0.063 R)
• M6: 3,152,626 km (0.034 R)
• M7: 3,581,074 km (0.11 R)
• M8: 4,492,574 km (0.075 R)
• M9: 4,839,342 km (0.081 R)
• M10: 5,102,484 km (0.047 R)
• M11: 6,100,452 km (0.064 R)
• M12: 8,336,491 km (0.084 R)
• M13: 10,512,841 km (0.113 R)
• M14: 11,643,801 km (0.075 R)
• M15: 12,299,339 km (0.08 R)
• M16: 13,360,436 km (0.115 R)
• M17: 14,617,358 km (0.096 R)
• M18: 14,891,720 km (0.106 R)
• M19: 15,735,452 km (0.06 R)
• M20: 16,685,099 km (0.1 R)
• M21: 18,617,754 km (0.119 R)
• M22: 19,513,696 km (0.087 R)
• M23: 20,182,997 km (0.073 R)
• M24: 21,391,149 km (0.118 R)
• M25: 24,236,800 km (0.113 R)
• M26: 25,600,833 km (0.12 R)
• M27: 26,504,404 km (0.114 R)
• M28: 31,685,278 km (0.092 R)
• M29: 32,376,869 km (0.112 R)
• M30: 37,247,476 km (0.077 R)
• M31: 39,856,463 km (0.084 R)
• M32: 47,504,654 km (0.082 R)
• M33: 48,562,610 km (0.105 R)
• M34: 50,725,347 km (0.105 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 160 - 11,234 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit