🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.94

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.62 AU - 0.66 AU

Year: 336 Days

Day: 27.1 Hours

Environment

Temp: -141 °C

Axial Tilt: 142.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.48

Radius: 1.44

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.62 AU - 0.72 AU

Year: 360 Days

Day: 17.9 Hours

Environment

Temp: -134 °C

Axial Tilt: 19.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,345,912 km

• M1: 726,298 km (0.039 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 572

Radius: 12.4

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.63 AU - 0.99 AU

Year: 478 Days

Day: 7.9 Hours

Environment

Temp: -156 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 45,345,912 km

• M1: 154,684 km (0.058 R)
• M2: 664,663 km (0.118 R)
• M3: 1,097,151 km (0.059 R)
• M4: 1,528,142 km (0.067 R)
• M5: 1,991,746 km (0.072 R)
• M6: 2,473,152 km (0.075 R)
• M7: 3,800,235 km (0.052 R)
• M8: 4,447,844 km (0.112 R)
• M9: 5,231,288 km (0.093 R)
• M10: 5,707,009 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159.1

Radius: 10.8

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.66 AU - 1.04 AU

Year: 514 Days

Day: 8.6 Hours

Environment

Temp: -158 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 45,345,912 km

• M1: 134,339 km (0.093 R)
• M2: 515,215 km (0.054 R)
• M3: 898,934 km (0.118 R)
• M4: 1,261,708 km (0.113 R)
• M5: 1,610,870 km (0.107 R)
• M6: 2,419,446 km (0.073 R)
• M7: 2,827,998 km (0.082 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 939.8

Radius: 5.9

Gravity: 27 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 6.12 AU - 6.4 AU

Year: 10275 Days

Day: 19 Hours

Environment

Temp: -220 °C

Axial Tilt: 49.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 45,345,912 km

• M1: 74,500 km (0.106 R)
• M2: 358,736 km (0.096 R)
• M3: 785,239 km (0.108 R)
• M4: 1,069,924 km (0.03 R)
• M5: 1,262,307 km (0.107 R)
• M6: 1,967,062 km (0.091 R)
• M7: 2,202,081 km (0.115 R)
• M8: 3,462,144 km (0.078 R)
• M9: 4,379,478 km (0.056 R)
• M10: 5,242,508 km (0.115 R)
• M11: 7,427,983 km (0.106 R)
• M12: 8,228,032 km (0.041 R)
• M13: 8,888,956 km (0.038 R)
• M14: 9,893,655 km (0.059 R)
• M15: 10,156,199 km (0.082 R)
• M16: 10,423,381 km (0.048 R)
• M17: 10,695,350 km (0.119 R)
• M18: 11,310,048 km (0.069 R)
• M19: 11,539,381 km (0.119 R)
• M20: 12,126,254 km (0.106 R)
• M21: 14,270,889 km (0.116 R)
• M22: 16,362,566 km (0.11 R)
• M23: 17,253,571 km (0.077 R)
• M24: 18,491,344 km (0.077 R)
• M25: 19,787,161 km (0.111 R)
• M26: 20,627,003 km (0.066 R)
• M27: 21,055,900 km (0.099 R)
• M28: 22,377,897 km (0.107 R)
• M29: 28,011,453 km (0.111 R)
• M30: 28,537,290 km (0.096 R)
• M31: 29,608,560 km (0.083 R)
• M32: 37,233,713 km (0.116 R)
• M33: 37,997,261 km (0.108 R)
• M34: 38,254,120 km (0.115 R)
• M35: 42,109,257 km (0.084 R)
• M36: 49,198,102 km (0.091 R)
• M37: 53,585,508 km (0.101 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 861

Radius: 7.4

Gravity: 15.72 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 6.59 AU - 7.35 AU

Year: 12071 Days

Day: 23.2 Hours

Environment

Temp: -217 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 45,345,912 km

• M1: 92,152 km (0.108 R)
• M2: 340,934 km (0.104 R)
• M3: 603,927 km (0.087 R)
• M4: 881,431 km (0.12 R)
• M5: 1,157,289 km (0.026 R)
• M6: 1,939,686 km (0.093 R)
• M7: 3,538,738 km (0.062 R)
• M8: 6,407,127 km (0.1 R)
• M9: 7,543,921 km (0.082 R)
• M10: 12,179,211 km (0.118 R)
• M11: 19,411,521 km (0.111 R)
• M12: 19,749,013 km (0.096 R)
• M13: 21,765,742 km (0.045 R)
• M14: 23,532,343 km (0.061 R)
• M15: 27,348,286 km (0.073 R)
• M16: 31,557,372 km (0.071 R)
• M17: 32,613,981 km (0.106 R)
• M18: 32,971,371 km (0.071 R)
• M19: 33,693,928 km (0.07 R)
• M20: 38,916,988 km (0.073 R)
• M21: 44,654,964 km (0.064 R)
• M22: 57,599,070 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 234

Radius: 7.5

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 8.32 AU - 8.32 AU

Year: 15743 Days

Day: 18.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 178.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 45,345,912 km

• M1: 93,349 km (0.101 R)
• M2: 335,847 km (0.099 R)
• M3: 581,786 km (0.105 R)
• M4: 993,928 km (0.085 R)
• M5: 1,254,977 km (0.058 R)
• M6: 1,507,647 km (0.094 R)
• M7: 1,983,967 km (0.096 R)
• M8: 2,757,089 km (0.097 R)
• M9: 3,974,367 km (0.107 R)
• M10: 4,244,540 km (0.078 R)
• M11: 4,497,959 km (0.102 R)
• M12: 8,741,153 km (0.108 R)
• M13: 9,339,993 km (0.066 R)
• M14: 9,673,597 km (0.085 R)
• M15: 11,035,536 km (0.099 R)
• M16: 11,845,159 km (0.118 R)
• M17: 17,409,452 km (0.056 R)
• M18: 17,842,388 km (0.092 R)
• M19: 18,356,556 km (0.118 R)
• M20: 18,654,705 km (0.111 R)
• M21: 18,955,995 km (0.11 R)
• M22: 20,512,112 km (0.085 R)
• M23: 24,053,393 km (0.115 R)
• M24: 25,968,096 km (0.083 R)
• M25: 32,972,567 km (0.078 R)
• M26: 41,012,107 km (0.077 R)
• M27: 42,945,958 km (0.077 R)
• M28: 43,471,795 km (0.083 R)
• M29: 45,210,272 km (0.039 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 452 - 14,126 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit