🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.3

Radius: 11.4

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.41 AU - 0.67 AU

Year: 265 Days

Day: 12.7 Hours

Environment

Temp: -144 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 82,630,549 km

• M1: 141,819 km (0.091 R)
• M2: 521,199 km (0.111 R)
• M3: 1,149,360 km (0.065 R)
• M4: 1,515,726 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707.6

Radius: 13

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.46 AU - 0.74 AU

Year: 310 Days

Day: 9.3 Hours

Environment

Temp: -141 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 82,630,549 km

• M1: 161,715 km (0.088 R)
• M2: 688,599 km (0.101 R)
• M3: 1,115,252 km (0.094 R)
• M4: 1,801,009 km (0.045 R)
• M5: 2,439,044 km (0.05 R)
• M6: 3,109,990 km (0.104 R)
• M7: 3,986,035 km (0.098 R)
• M8: 4,403,563 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 262.9

Radius: 12.1

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.63 AU - 0.77 AU

Year: 391 Days

Day: 10.8 Hours

Environment

Temp: -168 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 82,630,549 km

• M1: 150,645 km (0.064 R)
• M2: 768,335 km (0.119 R)
• M3: 1,210,396 km (0.105 R)
• M4: 2,038,869 km (0.098 R)
• M5: 2,771,450 km (0.045 R)
• M6: 3,254,651 km (0.111 R)
• M7: 3,883,860 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 598.3

Radius: 11.8

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.23 AU - 1.31 AU

Year: 954 Days

Day: 14.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 82,630,549 km

• M1: 146,756 km (0.063 R)
• M2: 513,869 km (0.093 R)
• M3: 1,005,298 km (0.073 R)
• M4: 1,502,411 km (0.106 R)
• M5: 1,938,040 km (0.109 R)
• M6: 2,480,333 km (0.062 R)
• M7: 3,188,529 km (0.088 R)
• M8: 3,797,093 km (0.094 R)
• M9: 4,299,293 km (0.109 R)
• M10: 4,792,218 km (0.078 R)
• M11: 6,811,490 km (0.071 R)
• M12: 7,223,632 km (0.1 R)
• M13: 8,987,840 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 994.8

Radius: 13.2

Gravity: 5.71 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.06 AU - 1.74 AU

Year: 1105 Days

Day: 8.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 82,630,549 km

• M1: 164,109 km (0.072 R)
• M2: 583,581 km (0.072 R)
• M3: 1,020,407 km (0.098 R)
• M4: 1,519,466 km (0.098 R)
• M5: 2,272,392 km (0.119 R)
• M6: 2,709,965 km (0.089 R)
• M7: 3,204,087 km (0.105 R)
• M8: 3,807,266 km (0.119 R)
• M9: 5,101,138 km (0.094 R)
• M10: 5,750,692 km (0.082 R)
• M11: 6,290,890 km (0.102 R)
• M12: 7,164,840 km (0.1 R)
• M13: 8,008,423 km (0.087 R)
• M14: 8,976,022 km (0.082 R)
• M15: 10,180,285 km (0.101 R)
• M16: 10,737,836 km (0.088 R)
• M17: 11,629,888 km (0.058 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 857

Radius: 14.5

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 2.48 AU - 3.44 AU

Year: 3396 Days

Day: 14.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 82,630,549 km

• M1: 180,714 km (0.08 R)
• M2: 688,150 km (0.1 R)
• M3: 1,638,246 km (0.094 R)
• M4: 2,123,542 km (0.094 R)
• M5: 3,045,513 km (0.101 R)
• M6: 4,067,117 km (0.043 R)
• M7: 4,587,269 km (0.104 R)
• M8: 6,303,456 km (0.101 R)
• M9: 6,785,011 km (0.115 R)
• M10: 12,393,436 km (0.085 R)
• M11: 12,959,963 km (0.108 R)
• M12: 13,543,694 km (0.105 R)
• M13: 14,659,544 km (0.107 R)
• M14: 15,945,936 km (0.093 R)
• M15: 20,517,498 km (0.097 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 890.7

Radius: 12.7

Gravity: 5.52 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 3.51 AU - 4.73 AU

Year: 5577 Days

Day: 12.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 82,630,549 km

• M1: 157,975 km (0.049 R)
• M2: 576,251 km (0.081 R)
• M3: 1,000,959 km (0.069 R)
• M4: 1,460,973 km (0.05 R)
• M5: 2,140,446 km (0.12 R)
• M6: 3,548,162 km (0.082 R)
• M7: 4,134,137 km (0.071 R)
• M8: 4,542,539 km (0.116 R)
• M9: 5,441,323 km (0.112 R)
• M10: 9,893,655 km (0.088 R)
• M11: 10,676,501 km (0.098 R)
• M12: 11,450,520 km (0.063 R)
• M13: 12,313,550 km (0.083 R)
• M14: 13,002,449 km (0.111 R)
• M15: 17,556,208 km (0.056 R)
• M16: 18,497,627 km (0.094 R)
• M17: 20,481,295 km (0.067 R)
• M18: 21,905,616 km (0.115 R)
• M19: 23,076,070 km (0.091 R)
• M20: 24,205,534 km (0.101 R)
• M21: 25,034,755 km (0.078 R)
• M22: 29,373,991 km (0.112 R)
• M23: 30,127,066 km (0.087 R)
• M24: 31,183,676 km (0.089 R)
• M25: 33,574,250 km (0.07 R)
• M26: 34,501,458 km (0.088 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 611.9

Radius: 4.7

Gravity: 27.7 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 5.16 AU - 8.46 AU

Year: 11851 Days

Day: 17.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 82,630,549 km

• M1: 59,839 km (0.051 R)
• M2: 265,985 km (0.076 R)
• M3: 593,455 km (0.088 R)
• M4: 1,782,459 km (0.038 R)
• M5: 1,982,471 km (0.036 R)
• M6: 5,523,004 km (0.076 R)
• M7: 12,484,840 km (0.069 R)
• M8: 13,218,019 km (0.063 R)
• M9: 13,722,463 km (0.111 R)
• M10: 14,904,286 km (0.106 R)
• M11: 15,659,008 km (0.096 R)
• M12: 18,540,412 km (0.047 R)
• M13: 21,496,616 km (0.11 R)
• M14: 22,018,114 km (0.118 R)
• M15: 22,816,069 km (0.109 R)
• M16: 36,954,863 km (0.095 R)
• M17: 38,333,706 km (0.099 R)
• M18: 39,486,956 km (0.061 R)
• M19: 50,620,030 km (0.085 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 950.1

Radius: 6.6

Gravity: 21.81 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 7.14 AU - 11.66 AU

Year: 19219 Days

Day: 23.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 82,630,549 km

• M1: 82,129 km (0.032 R)
• M2: 338,989 km (0.066 R)
• M3: 587,920 km (0.106 R)
• M4: 835,654 km (0.116 R)
• M5: 2,401,195 km (0.027 R)
• M6: 3,384,203 km (0.065 R)
• M7: 4,611,654 km (0.089 R)
• M8: 11,423,293 km (0.064 R)
• M9: 15,612,183 km (0.074 R)
• M10: 19,660,601 km (0.109 R)
• M11: 22,232,787 km (0.081 R)
• M12: 25,356,989 km (0.092 R)
• M13: 25,695,977 km (0.091 R)
• M14: 25,923,665 km (0.092 R)
• M15: 26,383,080 km (0.075 R)
• M16: 29,752,025 km (0.044 R)
• M17: 30,764,952 km (0.086 R)
• M18: 33,262,189 km (0.051 R)
• M19: 35,467,411 km (0.095 R)
• M20: 37,475,314 km (0.042 R)
• M21: 47,624,183 km (0.105 R)
• M22: 55,383,077 km (0.11 R)
• M23: 57,884,802 km (0.09 R)
• M24: 66,480,546 km (0.12 R)
• M25: 67,557,202 km (0.117 R)
• M26: 68,426,964 km (0.093 R)
• M27: 80,421,721 km (0.097 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: 250 - 16,622 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit