🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 569.2

Radius: 13.5

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.52 AU - 0.8 AU

Year: 364 Days

Day: 11.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 81,485,263 km

• M1: 167,998 km (0.066 R)
• M2: 737,069 km (0.07 R)
• M3: 1,295,817 km (0.11 R)
• M4: 1,765,105 km (0.03 R)
• M5: 2,764,269 km (0.051 R)
• M6: 3,196,757 km (0.096 R)
• M7: 3,816,541 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 562.5

Radius: 12.9

Gravity: 3.38 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.67 AU - 0.79 AU

Year: 423 Days

Day: 7.7 Hours

Environment

Temp: -151 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 81,485,263 km

• M1: 160,519 km (0.11 R)
• M2: 702,512 km (0.105 R)
• M3: 1,681,031 km (0.075 R)
• M4: 2,118,156 km (0.111 R)
• M5: 2,748,412 km (0.089 R)
• M6: 3,631,339 km (0.11 R)
• M7: 4,080,880 km (0.054 R)
• M8: 4,987,743 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 703.4

Radius: 11.6

Gravity: 5.23 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.83 AU - 0.85 AU

Year: 522 Days

Day: 9.6 Hours

Environment

Temp: -162 °C

Axial Tilt: 122 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 81,485,263 km

• M1: 144,362 km (0.112 R)
• M2: 506,987 km (0.085 R)
• M3: 884,572 km (0.094 R)
• M4: 1,407,716 km (0.085 R)
• M5: 1,773,932 km (0.113 R)
• M6: 2,159,595 km (0.089 R)
• M7: 2,530,598 km (0.082 R)
• M8: 2,911,324 km (0.115 R)
• M9: 3,428,783 km (0.118 R)
• M10: 3,979,603 km (0.05 R)
• M11: 4,393,689 km (0.093 R)
• M12: 4,932,092 km (0.074 R)
• M13: 6,012,039 km (0.109 R)
• M14: 6,443,479 km (0.042 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969.2

Radius: 8.8

Gravity: 12.52 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.11 AU - 1.33 AU

Year: 914 Days

Day: 11.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 81,485,263 km

• M1: 109,805 km (0.102 R)
• M2: 395,537 km (0.102 R)
• M3: 683,961 km (0.119 R)
• M4: 1,107,623 km (0.079 R)
• M5: 1,534,874 km (0.086 R)
• M6: 2,017,926 km (0.036 R)
• M7: 2,636,064 km (0.113 R)
• M8: 4,560,940 km (0.08 R)
• M9: 5,479,321 km (0.097 R)
• M10: 5,939,335 km (0.116 R)
• M11: 6,289,842 km (0.032 R)
• M12: 7,500,688 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 822.8

Radius: 10.6

Gravity: 7.32 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 2.09 AU - 2.19 AU

Year: 2123 Days

Day: 5.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 81,485,263 km

• M1: 131,796 km (0.063 R)
• M2: 486,193 km (0.065 R)
• M3: 1,000,062 km (0.112 R)
• M4: 1,465,610 km (0.106 R)
• M5: 2,036,925 km (0.069 R)
• M6: 2,751,853 km (0.083 R)
• M7: 3,143,350 km (0.083 R)
• M8: 3,662,605 km (0.091 R)
• M9: 5,570,726 km (0.113 R)
• M10: 7,251,009 km (0.042 R)
• M11: 8,807,275 km (0.09 R)
• M12: 9,734,782 km (0.108 R)
• M13: 12,780,595 km (0.107 R)
• M14: 14,013,730 km (0.069 R)
• M15: 15,713,760 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 708.2

Radius: 12.3

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 2.17 AU - 2.47 AU

Year: 2397 Days

Day: 10.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 81,485,263 km

• M1: 153,039 km (0.07 R)
• M2: 600,635 km (0.06 R)
• M3: 1,123,330 km (0.107 R)
• M4: 1,711,549 km (0.056 R)
• M5: 2,115,763 km (0.099 R)
• M6: 2,686,479 km (0.071 R)
• M7: 3,255,848 km (0.082 R)
• M8: 4,616,441 km (0.099 R)
• M9: 5,806,941 km (0.108 R)
• M10: 8,820,440 km (0.091 R)
• M11: 9,332,813 km (0.111 R)
• M12: 9,756,923 km (0.081 R)
• M13: 10,606,040 km (0.092 R)
• M14: 11,503,777 km (0.071 R)
• M15: 12,707,142 km (0.115 R)
• M16: 15,024,264 km (0.087 R)
• M17: 16,717,562 km (0.079 R)
• M18: 17,933,045 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 435.9

Radius: 9.8

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 5.05 AU - 5.81 AU

Year: 8582 Days

Day: 7.8 Hours

Environment

Temp: -215 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 81,485,263 km

• M1: 122,670 km (0.081 R)
• M2: 427,700 km (0.077 R)
• M3: 902,075 km (0.066 R)
• M4: 1,407,566 km (0.107 R)
• M5: 1,911,711 km (0.069 R)
• M6: 2,272,840 km (0.103 R)
• M7: 2,623,797 km (0.027 R)
• M8: 2,930,622 km (0.078 R)
• M9: 3,526,171 km (0.058 R)
• M10: 3,901,512 km (0.06 R)
• M11: 4,788,628 km (0.12 R)
• M12: 5,161,426 km (0.073 R)
• M13: 6,500,476 km (0.068 R)
• M14: 7,437,857 km (0.103 R)
• M15: 8,881,177 km (0.108 R)
• M16: 13,915,893 km (0.082 R)
• M17: 15,405,290 km (0.072 R)
• M18: 16,284,476 km (0.102 R)
• M19: 18,142,482 km (0.064 R)
• M20: 21,649,654 km (0.112 R)
• M21: 26,372,309 km (0.119 R)
• M22: 27,447,170 km (0.07 R)
• M23: 28,272,352 km (0.055 R)
• M24: 29,493,519 km (0.115 R)
• M25: 34,307,280 km (0.076 R)
• M26: 35,050,482 km (0.057 R)
• M27: 36,239,785 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 642.9

Radius: 5.9

Gravity: 18.47 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 8.06 AU - 12.82 AU

Year: 22879 Days

Day: 21 Hours

Environment

Temp: -226 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 81,485,263 km

• M1: 74,201 km (0.065 R)
• M2: 311,463 km (0.103 R)
• M3: 572,361 km (0.094 R)
• M4: 838,197 km (0.117 R)
• M5: 1,300,155 km (0.096 R)
• M6: 1,520,812 km (0.093 R)
• M7: 2,498,733 km (0.095 R)
• M8: 2,791,347 km (0.056 R)
• M9: 3,134,075 km (0.065 R)
• M10: 3,504,480 km (0.053 R)
• M11: 3,808,762 km (0.046 R)
• M12: 4,401,020 km (0.119 R)
• M13: 5,441,623 km (0.098 R)
• M14: 7,247,418 km (0.09 R)
• M15: 8,311,807 km (0.084 R)
• M16: 8,853,651 km (0.116 R)
• M17: 9,418,682 km (0.113 R)
• M18: 10,188,961 km (0.099 R)
• M19: 10,746,213 km (0.107 R)
• M20: 13,397,836 km (0.096 R)
• M21: 14,447,265 km (0.099 R)
• M22: 17,222,305 km (0.11 R)
• M23: 20,722,297 km (0.082 R)
• M24: 22,742,167 km (0.053 R)
• M25: 23,266,807 km (0.116 R)
• M26: 24,231,564 km (0.092 R)
• M27: 30,207,700 km (0.104 R)
• M28: 37,676,673 km (0.091 R)
• M29: 38,707,551 km (0.114 R)
• M30: 39,005,550 km (0.084 R)
• M31: 39,455,242 km (0.05 R)
• M32: 49,367,896 km (0.105 R)
• M33: 52,399,646 km (0.039 R)
• M34: 53,130,731 km (0.083 R)
• M35: 53,498,742 km (0.052 R)
• M36: 65,981,038 km (0.115 R)
• M37: 67,047,372 km (0.114 R)
• M38: 68,559,657 km (0.093 R)
• M39: 69,433,907 km (0.107 R)
• M40: 71,204,847 km (0.118 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 186 - 19,927 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit