🌌 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: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.05

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.56 AU - 0.7 AU

Year: 323 Days

Day: 44 Hours

Environment

Temp: -136 °C

Axial Tilt: 155.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 124.7

Radius: 10.7

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.73 AU - 1.03 AU

Year: 533 Days

Day: 10.1 Hours

Environment

Temp: -148 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 81,789,027 km

• M1: 133,292 km (0.094 R)
• M2: 521,199 km (0.1 R)
• M3: 861,534 km (0.089 R)
• M4: 1,240,316 km (0.085 R)
• M5: 1,750,744 km (0.07 R)
• M6: 2,831,888 km (0.083 R)
• M7: 3,277,689 km (0.118 R)
• M8: 3,661,258 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.2

Radius: 12.4

Gravity: 5.66 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.83 AU - 1.33 AU

Year: 725 Days

Day: 10.2 Hours

Environment

Temp: -161 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 81,789,027 km

• M1: 154,684 km (0.102 R)
• M2: 709,244 km (0.111 R)
• M3: 1,116,748 km (0.078 R)
• M4: 1,566,439 km (0.09 R)
• M5: 1,957,339 km (0.079 R)
• M6: 3,144,547 km (0.112 R)
• M7: 4,363,171 km (0.075 R)
• M8: 4,920,274 km (0.054 R)
• M9: 5,736,779 km (0.104 R)
• M10: 6,198,438 km (0.077 R)
• M11: 6,882,100 km (0.09 R)
• M12: 7,497,396 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 549.3

Radius: 8.7

Gravity: 7.26 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.19 AU - 1.95 AU

Year: 1270 Days

Day: 6.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 81,789,027 km

• M1: 108,159 km (0.102 R)
• M2: 430,692 km (0.084 R)
• M3: 734,376 km (0.055 R)
• M4: 1,044,642 km (0.118 R)
• M5: 1,451,698 km (0.078 R)
• M6: 1,853,218 km (0.112 R)
• M7: 2,612,876 km (0.094 R)
• M8: 3,239,841 km (0.104 R)
• M9: 4,079,983 km (0.098 R)
• M10: 5,478,573 km (0.072 R)
• M11: 8,341,278 km (0.073 R)
• M12: 9,072,213 km (0.118 R)
• M13: 9,906,521 km (0.057 R)
• M14: 10,790,943 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871.9

Radius: 10.6

Gravity: 7.76 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 2.73 AU - 3.99 AU

Year: 3977 Days

Day: 6.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 81,789,027 km

• M1: 131,796 km (0.056 R)
• M2: 543,040 km (0.076 R)
• M3: 1,005,746 km (0.117 R)
• M4: 1,491,491 km (0.101 R)
• M5: 1,828,984 km (0.11 R)
• M6: 2,278,226 km (0.063 R)
• M7: 3,421,303 km (0.056 R)
• M8: 4,224,045 km (0.1 R)
• M9: 4,834,554 km (0.049 R)
• M10: 5,309,827 km (0.115 R)
• M11: 7,290,802 km (0.075 R)
• M12: 8,503,442 km (0.102 R)
• M13: 9,477,474 km (0.071 R)
• M14: 9,887,372 km (0.086 R)
• M15: 10,351,873 km (0.117 R)
• M16: 11,833,192 km (0.106 R)
• M17: 13,349,216 km (0.066 R)
• M18: 14,074,616 km (0.064 R)
• M19: 15,156,508 km (0.083 R)
• M20: 19,643,846 km (0.119 R)
• M21: 20,243,883 km (0.087 R)
• M22: 22,693,997 km (0.112 R)
• M23: 24,331,645 km (0.082 R)
• M24: 27,261,070 km (0.079 R)
• M25: 27,591,233 km (0.074 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 559.1

Radius: 11.2

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 5.15 AU - 5.21 AU

Year: 7612 Days

Day: 11.7 Hours

Environment

Temp: -209 °C

Axial Tilt: 116 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 81,789,027 km

• M1: 139,276 km (0.055 R)
• M2: 580,290 km (0.085 R)
• M3: 947,254 km (0.118 R)
• M4: 1,302,249 km (0.107 R)
• M5: 1,789,789 km (0.045 R)
• M6: 2,279,124 km (0.075 R)
• M7: 2,629,332 km (0.116 R)
• M8: 3,015,594 km (0.086 R)
• M9: 4,101,674 km (0.06 R)
• M10: 4,597,442 km (0.109 R)
• M11: 5,074,809 km (0.058 R)
• M12: 5,431,450 km (0.077 R)
• M13: 5,804,846 km (0.104 R)
• M14: 7,741,839 km (0.12 R)
• M15: 8,542,936 km (0.083 R)
• M16: 9,442,618 km (0.07 R)
• M17: 10,499,227 km (0.079 R)
• M18: 11,889,889 km (0.074 R)
• M19: 13,968,701 km (0.117 R)
• M20: 15,033,539 km (0.091 R)
• M21: 15,710,469 km (0.063 R)
• M22: 16,407,595 km (0.102 R)
• M23: 22,747,553 km (0.092 R)
• M24: 26,457,131 km (0.1 R)
• M25: 31,538,074 km (0.059 R)
• M26: 32,954,317 km (0.113 R)
• M27: 34,518,362 km (0.069 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 552.7

Radius: 3.3

Gravity: 50.75 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 6.01 AU - 7.17 AU

Year: 10923 Days

Day: 23.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 81,789,027 km

• M1: 316,848 km (0.12 R)
• M2: 744,997 km (0.115 R)
• M3: 2,085,993 km (0.088 R)
• M4: 3,067,504 km (0.077 R)
• M5: 3,348,150 km (0.083 R)
• M6: 3,933,526 km (0.059 R)
• M7: 5,173,244 km (0.044 R)
• M8: 6,462,628 km (0.12 R)
• M9: 8,256,905 km (0.074 R)
• M10: 8,844,675 km (0.1 R)
• M11: 10,933,660 km (0.047 R)
• M12: 11,641,557 km (0.074 R)
• M13: 13,087,570 km (0.07 R)
• M14: 15,173,862 km (0.115 R)
• M15: 17,037,552 km (0.105 R)
• M16: 18,817,467 km (0.118 R)
• M17: 22,568,185 km (0.067 R)
• M18: 22,741,569 km (0.108 R)
• M19: 23,267,555 km (0.056 R)
• M20: 38,323,534 km (0.057 R)
• M21: 40,329,192 km (0.1 R)
• M22: 40,584,706 km (0.062 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 911.2

Radius: 4.1

Gravity: 54.21 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 9.01 AU - 10.27 AU

Year: 19326 Days

Day: 23.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 81,789,027 km

• M1: 52,808 km (0.066 R)
• M2: 326,871 km (0.107 R)
• M3: 734,825 km (0.032 R)
• M4: 863,329 km (0.093 R)
• M5: 1,487,601 km (0.115 R)
• M6: 1,750,893 km (0.064 R)
• M7: 2,023,910 km (0.092 R)
• M8: 2,605,845 km (0.109 R)
• M9: 3,770,016 km (0.078 R)
• M10: 4,361,376 km (0.056 R)
• M11: 4,571,561 km (0.074 R)
• M12: 5,440,725 km (0.119 R)
• M13: 5,725,709 km (0.111 R)
• M14: 5,893,109 km (0.101 R)
• M15: 7,649,388 km (0.103 R)
• M16: 8,216,364 km (0.079 R)
• M17: 8,483,246 km (0.099 R)
• M18: 9,491,835 km (0.027 R)
• M19: 11,086,100 km (0.045 R)
• M20: 12,921,815 km (0.088 R)
• M21: 13,948,954 km (0.098 R)
• M22: 15,671,424 km (0.109 R)
• M23: 17,009,577 km (0.108 R)
• M24: 21,277,904 km (0.04 R)
• M25: 21,578,745 km (0.075 R)
• M26: 23,125,736 km (0.045 R)
• M27: 24,197,156 km (0.097 R)
• M28: 26,669,860 km (0.108 R)
• M29: 31,848,489 km (0.114 R)
• M30: 31,979,387 km (0.087 R)
• M31: 34,949,653 km (0.116 R)
• M32: 44,462,432 km (0.117 R)
• M33: 45,283,874 km (0.077 R)
• M34: 46,450,737 km (0.107 R)
• M35: 49,894,929 km (0.112 R)
• M36: 51,139,434 km (0.031 R)
• M37: 55,943,321 km (0.11 R)
• M38: 61,646,440 km (0.038 R)
• M39: 69,030,441 km (0.099 R)
• M40: 76,982,167 km (0.111 R)
• M41: 78,881,611 km (0.057 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 315 - 14,940 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit