🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.89

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.6 AU - 0.94 AU

Year: 260 Days

Day: 19.2 Hours

Environment

Temp: 163 °C

Axial Tilt: 19 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 45,854,973 km

• M1: 48,619 km (0.103 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.8

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.84 AU - 1.14 AU

Year: 379 Days

Day: 32.5 Hours

Environment

Temp: 9 °C

Axial Tilt: 10.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.42

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 1.65 AU - 2.51 AU

Year: 1155 Days

Day: 45.8 Hours

Environment

Temp: -79 °C

Axial Tilt: 15.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.4

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 2.11 AU - 3.15 AU

Year: 1642 Days

Day: 42.3 Hours

Environment

Temp: -114 °C

Axial Tilt: 34.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,854,973 km

• M1: 1,093,112 km (0.05 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.94

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 2.91 AU - 3.45 AU

Year: 2183 Days

Day: 23.3 Hours

Environment

Temp: -123 °C

Axial Tilt: 6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 45,854,973 km

• M1: 296,653 km (0.07 R)
• M2: 983,756 km (0.104 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.16

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 2.55 AU - 3.87 AU

Year: 2214 Days

Day: 12.9 Hours

Environment

Temp: -122 °C

Axial Tilt: 25.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 838.8

Radius: 10.5

Gravity: 7.61 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 4.49 AU - 6.15 AU

Year: 4724 Days

Day: 14.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 45,854,973 km

• M1: 130,599 km (0.11 R)
• M2: 483,351 km (0.081 R)
• M3: 1,009,486 km (0.102 R)
• M4: 1,402,480 km (0.111 R)
• M5: 2,010,745 km (0.083 R)
• M6: 3,225,031 km (0.027 R)
• M7: 3,599,175 km (0.097 R)
• M8: 4,386,210 km (0.115 R)
• M9: 11,405,491 km (0.078 R)
• M10: 13,944,018 km (0.075 R)
• M11: 14,271,936 km (0.032 R)
• M12: 14,943,481 km (0.117 R)
• M13: 16,714,570 km (0.093 R)
• M14: 17,523,895 km (0.093 R)
• M15: 19,764,123 km (0.116 R)
• M16: 20,317,784 km (0.095 R)
• M17: 21,820,495 km (0.115 R)
• M18: 23,014,286 km (0.088 R)
• M19: 29,195,371 km (0.101 R)
• M20: 29,913,740 km (0.09 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 730.8

Radius: 13.6

Gravity: 3.95 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 5.97 AU - 7.55 AU

Year: 6767 Days

Day: 9.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 45,854,973 km

• M1: 169,195 km (0.094 R)
• M2: 784,940 km (0.06 R)
• M3: 1,321,548 km (0.105 R)
• M4: 1,808,189 km (0.11 R)
• M5: 3,262,580 km (0.101 R)
• M6: 3,709,279 km (0.082 R)
• M7: 5,732,590 km (0.082 R)
• M8: 8,368,206 km (0.093 R)
• M9: 10,020,963 km (0.103 R)
• M10: 13,281,897 km (0.102 R)
• M11: 15,152,619 km (0.072 R)
• M12: 16,797,298 km (0.045 R)
• M13: 17,730,788 km (0.094 R)
• M14: 18,488,202 km (0.102 R)
• M15: 19,338,966 km (0.098 R)
• M16: 22,523,755 km (0.047 R)
• M17: 23,906,937 km (0.081 R)
• M18: 27,022,013 km (0.113 R)
• M19: 29,148,397 km (0.063 R)
• M20: 30,398,437 km (0.074 R)
• M21: 32,594,833 km (0.083 R)
• M22: 34,257,314 km (0.097 R)
• M23: 35,002,311 km (0.041 R)
• M24: 36,634,873 km (0.06 R)

Planet 9 - Gas Giant

Semi-Major Axis: 8.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 741.9

Radius: 12

Gravity: 5.15 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 6.6 AU - 9.74 AU

Year: 8991 Days

Day: 6 Hours

Environment

Temp: -176 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 45,854,973 km

• M1: 149,299 km (0.108 R)
• M2: 566,527 km (0.1 R)
• M3: 1,048,831 km (0.084 R)
• M4: 1,497,774 km (0.099 R)
• M5: 2,058,915 km (0.097 R)
• M6: 4,314,103 km (0.072 R)
• M7: 5,794,225 km (0.064 R)
• M8: 8,613,546 km (0.119 R)
• M9: 10,371,321 km (0.086 R)
• M10: 12,585,669 km (0.078 R)
• M11: 14,904,436 km (0.06 R)
• M12: 16,577,090 km (0.115 R)
• M13: 17,566,680 km (0.084 R)
• M14: 20,531,410 km (0.105 R)
• M15: 22,683,974 km (0.116 R)
• M16: 24,349,297 km (0.109 R)
• M17: 26,094,656 km (0.108 R)
• M18: 29,833,406 km (0.114 R)
• M19: 31,402,687 km (0.081 R)
• M20: 38,476,273 km (0.049 R)
• M21: 39,833,275 km (0.1 R)
• M22: 42,511,975 km (0.107 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: 435 - 16,929 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit