🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.78

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.88 AU - 0.98 AU

Year: 329 Days

Day: 20.6 Hours

Environment

Temp: 91 °C

Axial Tilt: 14.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.48

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.8 AU - 1.92 AU

Year: 931 Days

Day: 35.7 Hours

Environment

Temp: -63 °C

Axial Tilt: 20.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.51

Radius: 0.76

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.53 AU - 2.53 AU

Year: 1062 Days

Day: 43.8 Hours

Environment

Temp: -68 °C

Axial Tilt: 8.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 52,594,385 km

• M1: 21,392 km (0.074 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.99

Radius: 1

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 2.97 AU - 4.89 AU

Year: 2860 Days

Day: 34.3 Hours

Environment

Temp: -132 °C

Axial Tilt: 10.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 52,594,385 km

• M1: 366,216 km (0.104 R)
• M2: 1,049,728 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 853.4

Radius: 14.3

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 4.96 AU - 7.6 AU

Year: 5777 Days

Day: 6.5 Hours

Environment

Temp: -157 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 52,594,385 km

• M1: 178,021 km (0.119 R)
• M2: 1,445,564 km (0.115 R)
• M3: 2,631,277 km (0.054 R)
• M4: 4,681,217 km (0.066 R)
• M5: 6,463,077 km (0.094 R)
• M6: 6,980,835 km (0.114 R)
• M7: 7,790,459 km (0.104 R)
• M8: 8,621,026 km (0.036 R)
• M9: 13,520,356 km (0.05 R)
• M10: 15,437,453 km (0.111 R)
• M11: 17,201,511 km (0.09 R)
• M12: 18,610,125 km (0.112 R)
• M13: 19,805,711 km (0.11 R)
• M14: 20,606,209 km (0.114 R)
• M15: 21,277,156 km (0.098 R)
• M16: 21,885,720 km (0.049 R)
• M17: 26,651,609 km (0.088 R)
• M18: 27,359,057 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 288.2

Radius: 13.9

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 6.13 AU - 7.15 AU

Year: 6281 Days

Day: 11.6 Hours

Environment

Temp: -162 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 52,594,385 km

• M1: 177,423 km (0.119 R)
• M2: 665,411 km (0.044 R)
• M3: 1,183,319 km (0.099 R)
• M4: 1,924,128 km (0.1 R)
• M5: 2,494,544 km (0.111 R)
• M6: 3,543,076 km (0.108 R)
• M7: 4,598,339 km (0.119 R)
• M8: 5,252,381 km (0.039 R)
• M9: 5,769,092 km (0.109 R)
• M10: 6,592,629 km (0.089 R)
• M11: 8,474,121 km (0.085 R)
• M12: 8,920,072 km (0.078 R)
• M13: 9,859,397 km (0.099 R)
• M14: 10,648,825 km (0.086 R)
• M15: 14,654,607 km (0.091 R)
• M16: 16,472,072 km (0.098 R)
• M17: 22,680,683 km (0.073 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 470.5

Radius: 5.5

Gravity: 15.55 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 11.48 AU - 13.72 AU

Year: 16418 Days

Day: 24.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 52,594,385 km

• M1: 68,516 km (0.084 R)
• M2: 337,343 km (0.071 R)
• M3: 620,682 km (0.118 R)
• M4: 1,137,841 km (0.106 R)
• M5: 2,142,989 km (0.097 R)
• M6: 2,379,055 km (0.079 R)
• M7: 2,880,507 km (0.091 R)
• M8: 3,582,719 km (0.087 R)
• M9: 4,209,834 km (0.084 R)
• M10: 4,392,941 km (0.087 R)
• M11: 5,979,427 km (0.105 R)
• M12: 6,408,922 km (0.089 R)
• M13: 7,198,949 km (0.073 R)
• M14: 7,417,212 km (0.113 R)
• M15: 8,478,609 km (0.091 R)
• M16: 10,615,764 km (0.118 R)
• M17: 10,841,657 km (0.099 R)
• M18: 11,128,735 km (0.065 R)
• M19: 12,020,339 km (0.076 R)
• M20: 13,610,414 km (0.025 R)
• M21: 14,012,085 km (0.041 R)
• M22: 14,629,176 km (0.112 R)
• M23: 18,310,331 km (0.078 R)
• M24: 19,804,365 km (0.094 R)
• M25: 22,103,235 km (0.082 R)
• M26: 22,379,393 km (0.075 R)
• M27: 23,602,954 km (0.081 R)
• M28: 23,891,528 km (0.094 R)
• M29: 27,753,247 km (0.118 R)
• M30: 28,507,370 km (0.103 R)
• M31: 29,164,404 km (0.116 R)
• M32: 30,508,840 km (0.09 R)
• M33: 33,441,407 km (0.105 R)
• M34: 38,118,136 km (0.091 R)
• M35: 39,995,739 km (0.117 R)
• M36: 50,155,828 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 170.9

Radius: 5.7

Gravity: 5.26 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 12.5 AU - 19.06 AU

Year: 23011 Days

Day: 17.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 52,594,385 km

• M1: 71,059 km (0.043 R)
• M2: 266,434 km (0.111 R)
• M3: 491,130 km (0.115 R)
• M4: 752,477 km (0.106 R)
• M5: 1,059,452 km (0.031 R)
• M6: 2,135,210 km (0.105 R)
• M7: 2,322,806 km (0.08 R)
• M8: 3,990,074 km (0.111 R)
• M9: 5,116,846 km (0.119 R)
• M10: 7,203,437 km (0.109 R)
• M11: 7,498,743 km (0.108 R)
• M12: 8,159,068 km (0.075 R)
• M13: 9,098,542 km (0.109 R)
• M14: 9,393,998 km (0.104 R)
• M15: 9,594,459 km (0.084 R)
• M16: 10,968,217 km (0.108 R)
• M17: 12,771,320 km (0.036 R)
• M18: 16,224,338 km (0.084 R)
• M19: 19,593,581 km (0.08 R)
• M20: 19,921,200 km (0.088 R)
• M21: 21,096,890 km (0.109 R)
• M22: 21,701,714 km (0.098 R)
• M23: 27,984,077 km (0.094 R)
• M24: 35,257,525 km (0.028 R)
• M25: 35,620,749 km (0.116 R)
• M26: 41,103,810 km (0.079 R)
• M27: 42,866,073 km (0.031 R)
• M28: 44,678,002 km (0.115 R)
• M29: 49,808,910 km (0.08 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 312 - 11,401 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit