🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.24

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.54 AU - 0.7 AU

Year: 315 Days

Day: 17.6 Hours

Environment

Temp: -126 °C

Axial Tilt: 49.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 62,234,796 km

• M1: 58,642 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 731.8

Radius: 9.1

Gravity: 8.84 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.63 AU - 0.81 AU

Year: 394 Days

Day: 14.2 Hours

Environment

Temp: -132 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 62,234,796 km

• M1: 113,246 km (0.032 R)
• M2: 443,258 km (0.056 R)
• M3: 771,925 km (0.099 R)
• M4: 1,059,452 km (0.085 R)
• M5: 1,401,283 km (0.08 R)
• M6: 1,786,947 km (0.116 R)
• M7: 2,130,274 km (0.098 R)
• M8: 2,930,473 km (0.072 R)
• M9: 3,341,418 km (0.109 R)
• M10: 3,828,509 km (0.107 R)
• M11: 4,265,484 km (0.107 R)
• M12: 4,647,407 km (0.111 R)
• M13: 4,990,735 km (0.106 R)
• M14: 5,287,088 km (0.116 R)
• M15: 5,661,531 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 981.7

Radius: 13.3

Gravity: 5.55 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.52 AU - 1.64 AU

Year: 1282 Days

Day: 13.4 Hours

Environment

Temp: -186 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 62,234,796 km

• M1: 165,455 km (0.046 R)
• M2: 842,086 km (0.063 R)
• M3: 1,427,463 km (0.073 R)
• M4: 1,966,464 km (0.104 R)
• M5: 2,449,067 km (0.054 R)
• M6: 2,911,474 km (0.086 R)
• M7: 3,369,991 km (0.058 R)
• M8: 4,050,961 km (0.112 R)
• M9: 5,128,215 km (0.09 R)
• M10: 8,328,113 km (0.112 R)
• M11: 9,481,064 km (0.061 R)
• M12: 10,030,088 km (0.108 R)
• M13: 11,805,965 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 98.5

Radius: 11.5

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 2.33 AU - 2.35 AU

Year: 2311 Days

Day: 11.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 62,234,796 km

• M1: 143,764 km (0.094 R)
• M2: 535,560 km (0.039 R)
• M3: 1,091,616 km (0.09 R)
• M4: 2,483,175 km (0.08 R)
• M5: 2,982,234 km (0.067 R)
• M6: 3,619,670 km (0.079 R)
• M7: 4,264,138 km (0.086 R)
• M8: 5,093,060 km (0.106 R)
• M9: 6,088,185 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 661.2

Radius: 13.4

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 3.23 AU - 4.17 AU

Year: 4595 Days

Day: 13.1 Hours

Environment

Temp: -205 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 62,234,796 km

• M1: 166,652 km (0.097 R)
• M2: 700,417 km (0.087 R)
• M3: 1,496,876 km (0.079 R)
• M4: 2,229,457 km (0.098 R)
• M5: 2,790,748 km (0.043 R)
• M6: 3,526,770 km (0.065 R)
• M7: 4,064,275 km (0.079 R)
• M8: 5,251,334 km (0.082 R)
• M9: 7,797,041 km (0.104 R)
• M10: 8,302,383 km (0.094 R)
• M11: 9,909,513 km (0.07 R)
• M12: 10,331,229 km (0.087 R)
• M13: 11,256,043 km (0.119 R)
• M14: 12,044,573 km (0.047 R)
• M15: 13,169,549 km (0.087 R)
• M16: 15,347,395 km (0.053 R)
• M17: 15,970,321 km (0.088 R)
• M18: 16,610,151 km (0.107 R)
• M19: 18,505,705 km (0.092 R)
• M20: 19,670,474 km (0.107 R)
• M21: 21,229,284 km (0.102 R)
• M22: 25,132,442 km (0.116 R)
• M23: 26,641,137 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 146.9

Radius: 14.4

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 2.92 AU - 4.64 AU

Year: 4745 Days

Day: 6.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 62,234,796 km

• M1: 180,415 km (0.05 R)
• M2: 2,137,754 km (0.106 R)
• M3: 2,765,616 km (0.056 R)
• M4: 3,378,369 km (0.053 R)
• M5: 5,191,046 km (0.116 R)
• M6: 6,155,504 km (0.118 R)
• M7: 7,974,165 km (0.053 R)
• M8: 9,950,353 km (0.107 R)
• M9: 14,300,210 km (0.099 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 830.5

Radius: 7.4

Gravity: 15.17 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 5.63 AU - 6.67 AU

Year: 9848 Days

Day: 22.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 62,234,796 km

• M1: 93,199 km (0.065 R)
• M2: 349,012 km (0.115 R)
• M3: 652,097 km (0.053 R)
• M4: 919,578 km (0.108 R)
• M5: 1,567,486 km (0.111 R)
• M6: 2,183,830 km (0.114 R)
• M7: 2,797,929 km (0.045 R)
• M8: 3,421,902 km (0.11 R)
• M9: 4,512,021 km (0.057 R)
• M10: 6,216,839 km (0.107 R)
• M11: 7,610,044 km (0.095 R)
• M12: 8,177,020 km (0.097 R)
• M13: 9,297,059 km (0.11 R)
• M14: 14,217,782 km (0.083 R)
• M15: 16,537,446 km (0.097 R)
• M16: 17,862,135 km (0.044 R)
• M17: 18,628,076 km (0.099 R)
• M18: 19,495,595 km (0.12 R)
• M19: 24,426,789 km (0.111 R)
• M20: 30,668,611 km (0.026 R)
• M21: 31,433,953 km (0.049 R)
• M22: 32,888,793 km (0.085 R)
• M23: 34,154,540 km (0.116 R)
• M24: 35,213,992 km (0.104 R)
• M25: 40,842,014 km (0.101 R)
• M26: 45,754,210 km (0.077 R)
• M27: 47,766,301 km (0.087 R)
• M28: 48,499,031 km (0.079 R)
• M29: 49,239,242 km (0.045 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 186

Radius: 5.8

Gravity: 5.53 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 5.86 AU - 8.3 AU

Year: 12164 Days

Day: 24.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 62,234,796 km

• M1: 72,106 km (0.101 R)
• M2: 578,645 km (0.052 R)
• M3: 889,210 km (0.106 R)
• M4: 1,459,477 km (0.042 R)
• M5: 1,732,643 km (0.075 R)
• M6: 1,933,403 km (0.119 R)
• M7: 2,348,088 km (0.088 R)
• M8: 3,552,800 km (0.091 R)
• M9: 3,878,923 km (0.058 R)
• M10: 6,472,202 km (0.072 R)
• M11: 7,066,255 km (0.041 R)
• M12: 9,587,578 km (0.108 R)
• M13: 10,405,280 km (0.068 R)
• M14: 11,768,416 km (0.059 R)
• M15: 14,433,203 km (0.104 R)
• M16: 15,936,362 km (0.079 R)
• M17: 16,123,359 km (0.07 R)
• M18: 17,342,881 km (0.109 R)
• M19: 18,760,770 km (0.041 R)
• M20: 23,717,994 km (0.112 R)
• M21: 24,372,485 km (0.078 R)
• M22: 26,321,297 km (0.096 R)
• M23: 28,098,370 km (0.07 R)
• M24: 29,202,103 km (0.107 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 965

Radius: 4.3

Gravity: 52.19 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 6.87 AU - 10.31 AU

Year: 16256 Days

Day: 17 Hours

Environment

Temp: -226 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 62,234,796 km

• M1: 54,902 km (0.116 R)
• M2: 284,535 km (0.092 R)
• M3: 437,873 km (0.087 R)
• M4: 812,017 km (0.101 R)
• M5: 1,388,567 km (0.072 R)
• M6: 1,614,161 km (0.075 R)
• M7: 3,633,732 km (0.062 R)
• M8: 3,783,181 km (0.096 R)
• M9: 3,999,499 km (0.075 R)
• M10: 6,507,208 km (0.047 R)
• M11: 10,134,209 km (0.034 R)
• M12: 10,551,736 km (0.119 R)
• M13: 10,980,633 km (0.119 R)
• M14: 15,848,698 km (0.086 R)
• M15: 16,492,268 km (0.116 R)
• M16: 25,844,528 km (0.098 R)
• M17: 26,847,881 km (0.066 R)
• M18: 27,992,754 km (0.097 R)
• M19: 29,409,146 km (0.106 R)
• M20: 31,622,148 km (0.045 R)
• M21: 33,287,770 km (0.096 R)
• M22: 46,289,022 km (0.099 R)
• M23: 51,858,700 km (0.092 R)
• M24: 54,170,137 km (0.085 R)
• M25: 70,565,615 km (0.092 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 471

Radius: 3.6

Gravity: 36.34 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 8.57 AU - 9.71 AU

Year: 17842 Days

Day: 16.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 46.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 62,234,796 km

• M1: 46,824 km (0.113 R)
• M2: 163,361 km (0.071 R)
• M3: 339,587 km (0.107 R)
• M4: 588,368 km (0.093 R)
• M5: 707,000 km (0.093 R)
• M6: 1,016,518 km (0.082 R)
• M7: 1,215,184 km (0.116 R)
• M8: 1,395,449 km (0.091 R)
• M9: 1,609,075 km (0.115 R)
• M10: 2,620,805 km (0.093 R)
• M11: 3,194,812 km (0.078 R)
• M12: 3,484,284 km (0.097 R)
• M13: 3,705,539 km (0.09 R)
• M14: 3,995,161 km (0.069 R)
• M15: 5,093,508 km (0.095 R)
• M16: 7,679,457 km (0.105 R)
• M17: 9,675,093 km (0.104 R)
• M18: 13,210,988 km (0.109 R)
• M19: 13,477,871 km (0.104 R)
• M20: 15,010,351 km (0.088 R)
• M21: 15,300,870 km (0.084 R)
• M22: 17,601,087 km (0.096 R)
• M23: 21,102,874 km (0.046 R)
• M24: 22,397,494 km (0.038 R)
• M25: 25,245,688 km (0.089 R)
• M26: 26,915,948 km (0.108 R)
• M27: 35,092,519 km (0.102 R)
• M28: 36,250,706 km (0.118 R)
• M29: 40,016,533 km (0.106 R)
• M30: 48,629,481 km (0.05 R)
• M31: 48,946,628 km (0.098 R)
• M32: 49,105,800 km (0.036 R)
• M33: 49,585,261 km (0.083 R)
• M34: 52,361,050 km (0.119 R)
• M35: 54,211,276 km (0.073 R)
• M36: 59,116,740 km (0.076 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 231 - 11,049 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit