🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 371.3

Radius: 8.3

Gravity: 5.39 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.78 AU - 0.82 AU

Year: 485 Days

Day: 7.6 Hours

Environment

Temp: -174 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 64,891,328 km

• M1: 103,223 km (0.117 R)
• M2: 612,304 km (0.03 R)
• M3: 910,303 km (0.112 R)
• M4: 1,248,693 km (0.074 R)
• M5: 1,636,152 km (0.109 R)
• M6: 1,997,580 km (0.057 R)
• M7: 2,606,593 km (0.096 R)
• M8: 3,049,104 km (0.101 R)
• M9: 3,390,486 km (0.11 R)
• M10: 4,163,159 km (0.06 R)
• M11: 4,459,213 km (0.109 R)
• M12: 4,929,549 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 316.4

Radius: 10.1

Gravity: 3.1 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.18 AU - 1.58 AU

Year: 1100 Days

Day: 5.7 Hours

Environment

Temp: -191 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 64,891,328 km

• M1: 125,662 km (0.114 R)
• M2: 449,093 km (0.065 R)
• M3: 796,459 km (0.093 R)
• M4: 1,111,363 km (0.118 R)
• M5: 1,863,840 km (0.066 R)
• M6: 2,240,677 km (0.103 R)
• M7: 2,567,399 km (0.119 R)
• M8: 3,048,954 km (0.051 R)
• M9: 3,466,033 km (0.077 R)
• M10: 4,287,924 km (0.092 R)
• M11: 4,627,810 km (0.038 R)
• M12: 4,985,798 km (0.081 R)
• M13: 5,307,433 km (0.091 R)
• M14: 5,893,857 km (0.046 R)
• M15: 6,460,085 km (0.057 R)
• M16: 6,864,747 km (0.104 R)
• M17: 7,309,053 km (0.118 R)
• M18: 7,819,780 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 312.7

Radius: 13.3

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 1.79 AU - 2.23 AU

Year: 1933 Days

Day: 10.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 64,891,328 km

• M1: 165,605 km (0.113 R)
• M2: 772,075 km (0.113 R)
• M3: 1,413,101 km (0.09 R)
• M4: 2,212,702 km (0.095 R)
• M5: 2,887,688 km (0.062 R)
• M6: 3,523,628 km (0.089 R)
• M7: 4,060,685 km (0.065 R)
• M8: 4,540,445 km (0.097 R)
• M9: 5,551,128 km (0.039 R)
• M10: 7,075,231 km (0.114 R)
• M11: 7,640,711 km (0.09 R)
• M12: 8,746,539 km (0.078 R)
• M13: 9,643,827 km (0.097 R)
• M14: 10,147,074 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 259.4

Radius: 11.6

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 2.03 AU - 2.03 AU

Year: 1962 Days

Day: 6.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 64,891,328 km

• M1: 144,212 km (0.106 R)
• M2: 744,399 km (0.078 R)
• M3: 1,581,100 km (0.09 R)
• M4: 2,423,934 km (0.109 R)
• M5: 3,049,553 km (0.079 R)
• M6: 3,637,771 km (0.118 R)
• M7: 4,026,277 km (0.115 R)
• M8: 4,460,410 km (0.111 R)
• M9: 6,900,651 km (0.092 R)
• M10: 8,051,507 km (0.053 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 938.6

Radius: 13.5

Gravity: 5.15 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 2.33 AU - 2.91 AU

Year: 2876 Days

Day: 11.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 64,891,328 km

• M1: 167,998 km (0.117 R)
• M2: 1,105,379 km (0.113 R)
• M3: 2,424,233 km (0.057 R)
• M4: 3,462,592 km (0.095 R)
• M5: 3,895,977 km (0.102 R)
• M6: 4,523,391 km (0.115 R)
• M7: 5,242,657 km (0.079 R)
• M8: 6,009,197 km (0.085 R)
• M9: 6,463,526 km (0.12 R)
• M10: 7,156,912 km (0.07 R)
• M11: 8,410,841 km (0.037 R)
• M12: 9,053,663 km (0.08 R)
• M13: 10,317,765 km (0.085 R)
• M14: 11,097,020 km (0.107 R)
• M15: 13,479,815 km (0.116 R)
• M16: 15,702,540 km (0.102 R)
• M17: 18,573,473 km (0.087 R)
• M18: 22,244,605 km (0.102 R)
• M19: 22,718,232 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 625

Radius: 8.2

Gravity: 9.3 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 2.69 AU - 3.53 AU

Year: 3720 Days

Day: 9.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 64,891,328 km

• M1: 102,026 km (0.051 R)
• M2: 363,972 km (0.117 R)
• M3: 735,573 km (0.099 R)
• M4: 1,059,751 km (0.115 R)
• M5: 1,415,794 km (0.102 R)
• M6: 2,018,973 km (0.113 R)
• M7: 2,587,894 km (0.108 R)
• M8: 3,830,603 km (0.095 R)
• M9: 4,262,043 km (0.064 R)
• M10: 4,536,256 km (0.101 R)
• M11: 5,248,192 km (0.068 R)
• M12: 6,527,105 km (0.102 R)
• M13: 7,017,187 km (0.097 R)
• M14: 8,036,547 km (0.115 R)
• M15: 9,113,951 km (0.029 R)
• M16: 10,613,071 km (0.108 R)
• M17: 11,862,812 km (0.093 R)
• M18: 13,449,597 km (0.047 R)
• M19: 13,992,038 km (0.113 R)
• M20: 14,651,765 km (0.044 R)
• M21: 15,120,455 km (0.1 R)
• M22: 15,869,492 km (0.073 R)
• M23: 16,531,014 km (0.104 R)
• M24: 17,268,232 km (0.105 R)
• M25: 18,265,152 km (0.075 R)
• M26: 19,674,214 km (0.044 R)
• M27: 21,887,964 km (0.053 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 624.7

Radius: 9.1

Gravity: 7.54 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 3.15 AU - 3.85 AU

Year: 4441 Days

Day: 7.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 151.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 64,891,328 km

• M1: 113,694 km (0.114 R)
• M2: 504,594 km (0.1 R)
• M3: 900,430 km (0.11 R)
• M4: 1,209,948 km (0.082 R)
• M5: 1,522,757 km (0.056 R)
• M6: 2,025,106 km (0.084 R)
• M7: 2,471,506 km (0.06 R)
• M8: 2,982,682 km (0.088 R)
• M9: 3,322,120 km (0.07 R)
• M10: 3,879,970 km (0.072 R)
• M11: 4,170,190 km (0.034 R)
• M12: 5,103,083 km (0.09 R)
• M13: 5,618,896 km (0.113 R)
• M14: 12,752,770 km (0.1 R)
• M15: 14,169,013 km (0.085 R)
• M16: 15,133,171 km (0.104 R)
• M17: 16,255,005 km (0.103 R)
• M18: 16,895,135 km (0.086 R)
• M19: 17,734,080 km (0.1 R)
• M20: 19,821,269 km (0.101 R)
• M21: 22,924,079 km (0.064 R)
• M22: 26,416,142 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 665.2

Radius: 4.9

Gravity: 27.71 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 8.19 AU - 8.25 AU

Year: 15984 Days

Day: 17.2 Hours

Environment

Temp: -238 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 64,891,328 km

• M1: 111,450 km (0.108 R)
• M2: 346,917 km (0.038 R)
• M3: 652,845 km (0.109 R)
• M4: 3,265,572 km (0.059 R)
• M5: 4,898,433 km (0.072 R)
• M6: 5,179,527 km (0.071 R)
• M7: 6,834,828 km (0.11 R)
• M8: 8,610,255 km (0.098 R)
• M9: 10,383,289 km (0.105 R)
• M10: 14,994,344 km (0.103 R)
• M11: 16,426,445 km (0.115 R)
• M12: 20,626,106 km (0.034 R)
• M13: 21,450,988 km (0.107 R)
• M14: 25,908,107 km (0.109 R)
• M15: 32,024,865 km (0.12 R)
• M16: 34,132,998 km (0.071 R)
• M17: 36,862,860 km (0.073 R)
• M18: 38,761,257 km (0.091 R)
• M19: 41,874,688 km (0.108 R)
• M20: 42,899,284 km (0.086 R)
• M21: 44,241,027 km (0.092 R)
• M22: 52,713,951 km (0.1 R)
• M23: 60,705,918 km (0.11 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 482 - 17,047 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit