🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.03

Radius: 1.01

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 0.78 AU - 1.02 AU

Year: 312 Days

Day: 43.2 Hours

Environment

Temp: 108 °C

Axial Tilt: 41.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.46

Radius: 0.73

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.26 AU - 1.32 AU

Year: 535 Days

Day: 23.6 Hours

Environment

Temp: -14 °C

Axial Tilt: 16.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.81

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.3 AU - 1.64 AU

Year: 651 Days

Day: 44.9 Hours

Environment

Temp: -36 °C

Axial Tilt: 7.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.76

Radius: 0.9

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 2.69 AU - 4.37 AU

Year: 2422 Days

Day: 18.7 Hours

Environment

Temp: -113 °C

Axial Tilt: 7.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 96,404,828 km

• M1: 206,595 km (0.094 R)
• M2: 277,055 km (0.03 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 3.09 AU - 4.11 AU

Year: 2495 Days

Day: 20.7 Hours

Environment

Temp: -110 °C

Axial Tilt: 11.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 5.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 240.3

Radius: 13.2

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 4.75 AU - 5.93 AU

Year: 4507 Days

Day: 6.1 Hours

Environment

Temp: -140 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 96,404,828 km

• M1: 164,258 km (0.074 R)
• M2: 690,993 km (0.105 R)
• M3: 1,843,046 km (0.075 R)
• M4: 2,717,445 km (0.032 R)
• M5: 3,319,577 km (0.091 R)
• M6: 4,109,902 km (0.083 R)
• M7: 4,615,693 km (0.03 R)
• M8: 7,188,327 km (0.068 R)
• M9: 8,183,004 km (0.098 R)
• M10: 8,884,169 km (0.067 R)
• M11: 12,267,624 km (0.104 R)
• M12: 15,411,124 km (0.099 R)
• M13: 16,325,616 km (0.051 R)
• M14: 16,743,592 km (0.029 R)
• M15: 18,431,206 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 979.9

Radius: 11.3

Gravity: 7.67 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 8.35 AU - 11.27 AU

Year: 11223 Days

Day: 13.9 Hours

Environment

Temp: -184 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 96,404,828 km

• M1: 141,370 km (0.057 R)
• M2: 821,143 km (0.068 R)
• M3: 1,260,512 km (0.107 R)
• M4: 1,775,278 km (0.085 R)
• M5: 2,193,703 km (0.09 R)
• M6: 2,613,924 km (0.107 R)
• M7: 3,208,874 km (0.079 R)
• M8: 4,063,377 km (0.118 R)
• M9: 4,896,937 km (0.087 R)
• M10: 5,730,496 km (0.051 R)
• M11: 6,336,966 km (0.065 R)
• M12: 7,501,286 km (0.085 R)
• M13: 11,086,997 km (0.109 R)
• M14: 14,074,916 km (0.088 R)
• M15: 15,179,995 km (0.087 R)
• M16: 15,899,411 km (0.074 R)
• M17: 18,355,210 km (0.093 R)
• M18: 18,924,430 km (0.08 R)
• M19: 20,877,729 km (0.118 R)
• M20: 21,948,700 km (0.11 R)
• M21: 22,405,423 km (0.039 R)
• M22: 23,055,725 km (0.115 R)
• M23: 26,497,523 km (0.104 R)
• M24: 29,156,176 km (0.048 R)
• M25: 30,606,677 km (0.077 R)
• M26: 31,177,094 km (0.046 R)
• M27: 33,050,508 km (0.066 R)
• M28: 40,883,303 km (0.06 R)
• M29: 41,854,492 km (0.113 R)
• M30: 44,567,898 km (0.063 R)
• M31: 48,468,214 km (0.102 R)
• M32: 49,712,569 km (0.033 R)
• M33: 52,265,158 km (0.043 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 908.3

Radius: 5.4

Gravity: 31.15 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 13.02 AU - 20.24 AU

Year: 24770 Days

Day: 17.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 42.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 96,404,828 km

• M1: 67,169 km (0.094 R)
• M2: 385,813 km (0.035 R)
• M3: 803,640 km (0.115 R)
• M4: 1,239,269 km (0.074 R)
• M5: 2,441,138 km (0.062 R)
• M6: 2,773,694 km (0.115 R)
• M7: 3,021,279 km (0.028 R)
• M8: 3,497,897 km (0.088 R)
• M9: 5,914,651 km (0.085 R)
• M10: 6,514,389 km (0.095 R)
• M11: 8,217,710 km (0.053 R)
• M12: 9,022,696 km (0.029 R)
• M13: 9,753,332 km (0.087 R)
• M14: 12,474,218 km (0.096 R)
• M15: 12,771,469 km (0.084 R)
• M16: 14,247,851 km (0.049 R)
• M17: 18,961,231 km (0.101 R)
• M18: 21,506,639 km (0.097 R)
• M19: 22,366,976 km (0.102 R)
• M20: 27,387,929 km (0.076 R)
• M21: 28,143,249 km (0.046 R)
• M22: 29,959,666 km (0.063 R)
• M23: 31,852,678 km (0.064 R)
• M24: 37,390,342 km (0.105 R)
• M25: 43,706,664 km (0.055 R)
• M26: 47,565,391 km (0.114 R)
• M27: 49,949,083 km (0.087 R)
• M28: 51,645,075 km (0.075 R)
• M29: 56,153,356 km (0.073 R)
• M30: 62,418,365 km (0.115 R)
• M31: 65,271,945 km (0.105 R)
• M32: 71,711,235 km (0.077 R)
• M33: 74,109,888 km (0.09 R)
• M34: 81,109,572 km (0.111 R)
• M35: 87,449,230 km (0.114 R)
• M36: 91,295,691 km (0.118 R)
• M37: 93,543,549 km (0.11 R)
• M38: 94,966,972 km (0.086 R)
• M39: 95,827,908 km (0.098 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 337 - 18,854 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit