🌌 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 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 915.7

Radius: 13.9

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.48 AU - 0.64 AU

Year: 289 Days

Day: 11.9 Hours

Environment

Temp: -142 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 76,504,328 km

• M1: 172,935 km (0.1 R)
• M2: 631,303 km (0.093 R)
• M3: 1,090,718 km (0.091 R)
• M4: 1,649,915 km (0.086 R)
• M5: 2,452,059 km (0.117 R)
• M6: 2,939,000 km (0.115 R)
• M7: 3,445,837 km (0.07 R)
• M8: 4,610,756 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 381.8

Radius: 8.4

Gravity: 5.41 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.52 AU - 0.74 AU

Year: 345 Days

Day: 11.9 Hours

Environment

Temp: -152 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 76,504,328 km

• M1: 104,419 km (0.115 R)
• M2: 408,701 km (0.101 R)
• M3: 697,874 km (0.109 R)
• M4: 967,599 km (0.113 R)
• M5: 1,298,061 km (0.081 R)
• M6: 1,619,995 km (0.06 R)
• M7: 1,894,358 km (0.105 R)
• M8: 2,394,015 km (0.043 R)
• M9: 2,715,949 km (0.1 R)
• M10: 3,037,435 km (0.075 R)
• M11: 3,373,582 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 523.1

Radius: 13.6

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.55 AU - 0.75 AU

Year: 362 Days

Day: 12.8 Hours

Environment

Temp: -163 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 76,504,328 km

• M1: 169,195 km (0.102 R)
• M2: 746,942 km (0.087 R)
• M3: 1,218,475 km (0.096 R)
• M4: 1,894,657 km (0.112 R)
• M5: 2,553,785 km (0.097 R)
• M6: 3,947,888 km (0.113 R)
• M7: 4,709,341 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 822.2

Radius: 13.1

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.08 AU - 1.18 AU

Year: 829 Days

Day: 5.1 Hours

Environment

Temp: -179 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 76,504,328 km

• M1: 162,912 km (0.067 R)
• M2: 596,148 km (0.04 R)
• M3: 1,007,841 km (0.037 R)
• M4: 1,654,104 km (0.105 R)
• M5: 3,001,532 km (0.036 R)
• M6: 3,762,087 km (0.028 R)
• M7: 4,180,512 km (0.036 R)
• M8: 4,613,000 km (0.078 R)
• M9: 5,038,755 km (0.093 R)
• M10: 5,452,244 km (0.118 R)
• M11: 6,136,056 km (0.114 R)
• M12: 6,630,626 km (0.106 R)
• M13: 7,175,013 km (0.066 R)
• M14: 8,483,546 km (0.107 R)
• M15: 9,629,017 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 426.1

Radius: 13.4

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 1.36 AU - 1.74 AU

Year: 1332 Days

Day: 5.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 76,504,328 km

• M1: 166,652 km (0.087 R)
• M2: 685,906 km (0.069 R)
• M3: 1,117,646 km (0.112 R)
• M4: 1,609,972 km (0.083 R)
• M5: 2,527,755 km (0.104 R)
• M6: 3,214,409 km (0.117 R)
• M7: 3,863,365 km (0.073 R)
• M8: 4,851,459 km (0.097 R)
• M9: 6,686,875 km (0.081 R)
• M10: 7,497,995 km (0.102 R)
• M11: 9,345,379 km (0.034 R)
• M12: 9,814,069 km (0.085 R)
• M13: 10,236,982 km (0.072 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 143.4

Radius: 9.1

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 2.22 AU - 2.62 AU

Year: 2599 Days

Day: 13.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,504,328 km

• M1: 113,395 km (0.102 R)
• M2: 410,796 km (0.074 R)
• M3: 1,084,136 km (0.087 R)
• M4: 1,446,911 km (0.096 R)
• M5: 1,821,803 km (0.065 R)
• M6: 4,541,193 km (0.095 R)
• M7: 5,580,449 km (0.073 R)
• M8: 8,285,927 km (0.073 R)
• M9: 11,248,862 km (0.106 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 456.9

Radius: 14.6

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 2.76 AU - 3.06 AU

Year: 3426 Days

Day: 6.9 Hours

Environment

Temp: -205 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 76,504,328 km

• M1: 181,911 km (0.111 R)
• M2: 966,402 km (0.104 R)
• M3: 1,924,876 km (0.113 R)
• M4: 2,529,251 km (0.078 R)
• M5: 3,023,074 km (0.119 R)
• M6: 3,985,586 km (0.101 R)
• M7: 5,096,500 km (0.098 R)
• M8: 5,712,245 km (0.101 R)
• M9: 8,964,054 km (0.095 R)
• M10: 9,753,183 km (0.115 R)
• M11: 15,905,994 km (0.064 R)
• M12: 18,675,050 km (0.081 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 855.1

Radius: 10.9

Gravity: 7.2 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 4.16 AU - 5.22 AU

Year: 7011 Days

Day: 8.1 Hours

Environment

Temp: -214 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 76,504,328 km

• M1: 228,885 km (0.106 R)
• M2: 642,523 km (0.111 R)
• M3: 1,188,405 km (0.083 R)
• M4: 1,689,259 km (0.089 R)
• M5: 5,616,203 km (0.108 R)
• M6: 6,457,093 km (0.108 R)
• M7: 6,816,128 km (0.103 R)
• M8: 13,183,612 km (0.115 R)
• M9: 14,665,079 km (0.102 R)
• M10: 17,125,067 km (0.109 R)
• M11: 17,537,209 km (0.1 R)
• M12: 18,381,240 km (0.067 R)
• M13: 20,610,099 km (0.103 R)
• M14: 22,765,056 km (0.101 R)
• M15: 23,599,962 km (0.119 R)
• M16: 31,030,488 km (0.11 R)
• M17: 34,285,588 km (0.092 R)
• M18: 35,715,893 km (0.119 R)
• M19: 39,764,311 km (0.099 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 633.4

Radius: 4.2

Gravity: 35.91 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 6.4 AU - 8.84 AU

Year: 14519 Days

Day: 24.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 76,504,328 km

• M1: 52,509 km (0.071 R)
• M2: 227,239 km (0.083 R)
• M3: 430,991 km (0.102 R)
• M4: 789,727 km (0.098 R)
• M5: 998,267 km (0.086 R)
• M6: 1,957,937 km (0.111 R)
• M7: 2,466,420 km (0.107 R)
• M8: 3,628,347 km (0.053 R)
• M9: 4,115,288 km (0.096 R)
• M10: 4,266,531 km (0.077 R)
• M11: 4,942,714 km (0.092 R)
• M12: 5,079,147 km (0.065 R)
• M13: 8,034,752 km (0.053 R)
• M14: 9,683,321 km (0.09 R)
• M15: 11,131,278 km (0.1 R)
• M16: 13,365,822 km (0.117 R)
• M17: 13,631,208 km (0.118 R)
• M18: 14,241,268 km (0.117 R)
• M19: 15,011,249 km (0.049 R)
• M20: 20,572,101 km (0.079 R)
• M21: 21,373,796 km (0.036 R)
• M22: 21,554,660 km (0.057 R)
• M23: 23,420,743 km (0.104 R)
• M24: 24,000,884 km (0.082 R)
• M25: 25,290,717 km (0.051 R)
• M26: 26,626,027 km (0.109 R)
• M27: 29,436,223 km (0.057 R)
• M28: 29,660,171 km (0.088 R)
• M29: 31,963,380 km (0.117 R)
• M30: 33,522,639 km (0.117 R)
• M31: 33,889,602 km (0.103 R)
• M32: 34,259,109 km (0.047 R)
• M33: 35,637,205 km (0.096 R)
• M34: 39,992,747 km (0.075 R)
• M35: 47,862,792 km (0.092 R)
• M36: 48,172,459 km (0.107 R)
• M37: 50,378,579 km (0.112 R)
• M38: 54,652,441 km (0.101 R)
• M39: 56,358,604 km (0.036 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 708.3

Radius: 6.6

Gravity: 16.26 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 8.3 AU - 10.46 AU

Year: 19830 Days

Day: 23.7 Hours

Environment

Temp: -233 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 76,504,328 km

• M1: 85,420 km (0.118 R)
• M2: 666,309 km (0.11 R)
• M3: 999,763 km (0.082 R)
• M4: 1,247,796 km (0.108 R)
• M5: 1,520,363 km (0.036 R)
• M6: 1,777,671 km (0.025 R)
• M7: 2,633,521 km (0.11 R)
• M8: 2,903,994 km (0.112 R)
• M9: 3,112,384 km (0.12 R)
• M10: 4,144,459 km (0.118 R)
• M11: 5,121,334 km (0.053 R)
• M12: 6,592,030 km (0.063 R)
• M13: 8,428,494 km (0.098 R)
• M14: 10,765,811 km (0.111 R)
• M15: 11,916,368 km (0.04 R)
• M16: 14,459,532 km (0.083 R)
• M17: 16,424,799 km (0.11 R)
• M18: 16,921,614 km (0.108 R)
• M19: 19,557,528 km (0.107 R)
• M20: 23,481,181 km (0.1 R)
• M21: 24,111,736 km (0.104 R)
• M22: 27,550,243 km (0.068 R)
• M23: 30,179,725 km (0.12 R)
• M24: 32,711,220 km (0.08 R)
• M25: 34,028,429 km (0.048 R)
• M26: 35,107,479 km (0.048 R)
• M27: 35,931,613 km (0.026 R)
• M28: 37,050,306 km (0.051 R)
• M29: 38,336,399 km (0.105 R)
• M30: 48,015,830 km (0.095 R)
• M31: 51,103,680 km (0.091 R)
• M32: 53,054,436 km (0.082 R)
• M33: 73,116,707 km (0.192 R)
• M34: 74,684,792 km (0.118 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 353 - 20,291 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit