🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.54

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.47 AU - 0.63 AU

Year: 268 Days

Day: 31.6 Hours

Environment

Temp: -130 °C

Axial Tilt: 0.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 957.4

Radius: 13.3

Gravity: 5.41 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.84 AU - 1.12 AU

Year: 636 Days

Day: 12.7 Hours

Environment

Temp: -163 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 47,421,313 km

• M1: 165,455 km (0.065 R)
• M2: 625,020 km (0.099 R)
• M3: 1,074,562 km (0.116 R)
• M4: 1,559,259 km (0.118 R)
• M5: 1,983,967 km (0.055 R)
• M6: 2,822,762 km (0.062 R)
• M7: 3,357,874 km (0.107 R)
• M8: 3,886,553 km (0.081 R)
• M9: 4,683,760 km (0.098 R)
• M10: 5,475,282 km (0.105 R)
• M11: 5,893,857 km (0.11 R)
• M12: 8,542,786 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130

Radius: 8.8

Gravity: 1.68 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 1.3 AU - 1.6 AU

Year: 1145 Days

Day: 5.2 Hours

Environment

Temp: -174 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 47,421,313 km

• M1: 109,655 km (0.109 R)
• M2: 400,025 km (0.064 R)
• M3: 811,419 km (0.106 R)
• M4: 1,213,239 km (0.031 R)
• M5: 1,783,805 km (0.086 R)
• M6: 2,100,055 km (0.085 R)
• M7: 2,980,289 km (0.087 R)
• M8: 3,429,082 km (0.11 R)
• M9: 3,722,145 km (0.095 R)
• M10: 4,073,700 km (0.105 R)
• M11: 4,627,511 km (0.094 R)
• M12: 4,954,532 km (0.076 R)
• M13: 5,655,099 km (0.067 R)
• M14: 6,307,046 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871.3

Radius: 10.1

Gravity: 8.54 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.96 AU - 2.6 AU

Year: 2258 Days

Day: 10.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 47,421,313 km

• M1: 128,205 km (0.075 R)
• M2: 752,627 km (0.028 R)
• M3: 1,110,615 km (0.113 R)
• M4: 1,425,219 km (0.104 R)
• M5: 2,000,273 km (0.055 R)
• M6: 2,322,058 km (0.079 R)
• M7: 2,863,004 km (0.089 R)
• M8: 3,379,117 km (0.067 R)
• M9: 4,300,191 km (0.118 R)
• M10: 4,887,512 km (0.067 R)
• M11: 5,212,588 km (0.118 R)
• M12: 7,297,384 km (0.073 R)
• M13: 7,911,035 km (0.112 R)
• M14: 8,230,426 km (0.119 R)
• M15: 9,241,109 km (0.119 R)
• M16: 11,466,976 km (0.11 R)
• M17: 12,988,536 km (0.111 R)
• M18: 13,982,165 km (0.101 R)
• M19: 14,592,674 km (0.057 R)
• M20: 15,516,890 km (0.116 R)
• M21: 17,589,418 km (0.071 R)
• M22: 18,301,056 km (0.064 R)
• M23: 18,636,005 km (0.055 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 819.9

Radius: 9.1

Gravity: 9.9 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 3.02 AU - 3.34 AU

Year: 3720 Days

Day: 5.1 Hours

Environment

Temp: -214 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 47,421,313 km

• M1: 113,246 km (0.066 R)
• M2: 752,477 km (0.082 R)
• M3: 1,143,377 km (0.061 R)
• M4: 1,597,256 km (0.053 R)
• M5: 2,182,633 km (0.032 R)
• M6: 3,273,052 km (0.058 R)
• M7: 3,819,982 km (0.092 R)
• M8: 4,521,745 km (0.062 R)
• M9: 4,891,102 km (0.075 R)
• M10: 5,860,197 km (0.039 R)
• M11: 6,210,107 km (0.05 R)
• M12: 7,146,589 km (0.079 R)
• M13: 8,686,400 km (0.119 R)
• M14: 9,142,225 km (0.04 R)
• M15: 10,351,724 km (0.053 R)
• M16: 12,266,876 km (0.062 R)
• M17: 13,583,636 km (0.075 R)
• M18: 15,759,836 km (0.116 R)
• M19: 18,405,026 km (0.047 R)
• M20: 19,670,474 km (0.108 R)
• M21: 22,373,708 km (0.047 R)
• M22: 23,230,754 km (0.079 R)
• M23: 23,667,281 km (0.112 R)
• M24: 25,391,995 km (0.101 R)
• M25: 25,777,658 km (0.089 R)
• M26: 26,089,121 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 762.9

Radius: 14.6

Gravity: 3.58 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 2.51 AU - 4.18 AU

Year: 4004 Days

Day: 5.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 47,421,313 km

• M1: 181,612 km (0.065 R)
• M2: 658,231 km (0.117 R)
• M3: 1,321,248 km (0.111 R)
• M4: 1,808,937 km (0.082 R)
• M5: 2,965,179 km (0.117 R)
• M6: 3,717,208 km (0.056 R)
• M7: 4,287,176 km (0.072 R)
• M8: 5,972,695 km (0.114 R)
• M9: 6,664,585 km (0.066 R)
• M10: 7,409,433 km (0.04 R)
• M11: 8,245,386 km (0.085 R)
• M12: 10,611,575 km (0.087 R)
• M13: 12,231,870 km (0.053 R)
• M14: 14,964,275 km (0.108 R)
• M15: 15,790,504 km (0.085 R)
• M16: 18,765,706 km (0.069 R)
• M17: 21,747,192 km (0.106 R)
• M18: 23,754,347 km (0.038 R)
• M19: 25,648,405 km (0.089 R)
• M20: 26,832,024 km (0.097 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 826.1

Radius: 4.8

Gravity: 35.86 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 6.41 AU - 8.29 AU

Year: 13072 Days

Day: 24.7 Hours

Environment

Temp: -215 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 47,421,313 km

• M1: 59,690 km (0.109 R)
• M2: 209,587 km (0.078 R)
• M3: 433,086 km (0.105 R)
• M4: 648,507 km (0.066 R)
• M5: 934,089 km (0.076 R)
• M6: 2,808,999 km (0.076 R)
• M7: 3,121,360 km (0.117 R)
• M8: 3,403,501 km (0.103 R)
• M9: 4,352,400 km (0.091 R)
• M10: 5,006,742 km (0.047 R)
• M11: 5,538,861 km (0.084 R)
• M12: 5,914,053 km (0.045 R)
• M13: 6,186,620 km (0.112 R)
• M14: 9,234,976 km (0.117 R)
• M15: 10,420,988 km (0.07 R)
• M16: 12,259,396 km (0.113 R)
• M17: 12,831,159 km (0.051 R)
• M18: 16,411,335 km (0.103 R)
• M19: 16,563,925 km (0.114 R)
• M20: 16,871,947 km (0.119 R)
• M21: 22,804,400 km (0.064 R)
• M22: 24,752,912 km (0.043 R)
• M23: 28,977,556 km (0.089 R)
• M24: 29,200,607 km (0.09 R)
• M25: 34,401,526 km (0.059 R)
• M26: 38,147,008 km (0.077 R)
• M27: 40,048,846 km (0.115 R)
• M28: 45,980,252 km (0.043 R)
• M29: 48,759,481 km (0.087 R)
• M30: 50,029,717 km (0.111 R)
• M31: 50,834,852 km (0.111 R)
• M32: 51,648,515 km (0.117 R)
• M33: 52,636,460 km (0.097 R)
• M34: 53,469,121 km (0.114 R)
• M35: 60,450,106 km (0.047 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 68.8

Radius: 7.9

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 5.92 AU - 8.92 AU

Year: 13259 Days

Day: 22.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 47,421,313 km

• M1: 98,735 km (0.064 R)
• M2: 473,328 km (0.097 R)
• M3: 888,761 km (0.105 R)
• M4: 1,522,458 km (0.089 R)
• M5: 3,079,921 km (0.096 R)
• M6: 5,685,317 km (0.105 R)
• M7: 6,002,016 km (0.036 R)
• M8: 6,861,755 km (0.083 R)
• M9: 7,187,878 km (0.07 R)
• M10: 9,526,542 km (0.034 R)
• M11: 9,891,710 km (0.073 R)
• M12: 10,393,162 km (0.111 R)
• M13: 11,859,670 km (0.092 R)
• M14: 12,377,877 km (0.114 R)
• M15: 20,023,525 km (0.099 R)
• M16: 21,649,355 km (0.118 R)
• M17: 23,507,809 km (0.037 R)
• M18: 24,175,166 km (0.11 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 361

Radius: 4.3

Gravity: 19.52 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 5.97 AU - 9.09 AU

Year: 13555 Days

Day: 18.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 47,421,313 km

• M1: 67,768 km (0.065 R)
• M2: 290,369 km (0.119 R)
• M3: 550,969 km (0.105 R)
• M4: 1,492,089 km (0.082 R)
• M5: 1,649,616 km (0.096 R)
• M6: 1,998,628 km (0.095 R)
• M7: 2,611,829 km (0.076 R)
• M8: 2,820,219 km (0.108 R)
• M9: 3,017,389 km (0.098 R)
• M10: 3,638,669 km (0.063 R)
• M11: 3,793,353 km (0.111 R)
• M12: 5,226,800 km (0.069 R)
• M13: 5,592,268 km (0.094 R)
• M14: 7,225,876 km (0.112 R)
• M15: 7,891,437 km (0.1 R)
• M16: 9,732,389 km (0.076 R)
• M17: 10,081,700 km (0.072 R)
• M18: 10,285,003 km (0.047 R)
• M19: 11,342,511 km (0.093 R)
• M20: 11,562,419 km (0.12 R)
• M21: 14,172,753 km (0.109 R)
• M22: 14,621,247 km (0.09 R)
• M23: 15,682,046 km (0.116 R)
• M24: 17,006,884 km (0.057 R)
• M25: 17,295,159 km (0.117 R)
• M26: 19,170,369 km (0.057 R)
• M27: 19,877,368 km (0.087 R)
• M28: 22,531,982 km (0.103 R)
• M29: 25,320,038 km (0.117 R)
• M30: 27,432,510 km (0.11 R)
• M31: 31,569,190 km (0.055 R)
• M32: 32,664,545 km (0.065 R)
• M33: 34,355,001 km (0.051 R)
• M34: 35,748,506 km (0.093 R)
• M35: 38,031,369 km (0.08 R)
• M36: 39,774,334 km (0.104 R)
• M37: 40,409,526 km (0.062 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 389 - 18,947 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit