🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 229.5

Radius: 13

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.54 AU - 0.62 AU

Year: 300 Days

Day: 10 Hours

Environment

Temp: -141 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 57,171,010 km

• M1: 175,927 km (0.045 R)
• M2: 660,774 km (0.098 R)
• M3: 1,333,515 km (0.091 R)
• M4: 1,782,459 km (0.081 R)
• M5: 2,686,628 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 266.8

Radius: 10.8

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.54 AU - 0.64 AU

Year: 307 Days

Day: 8.7 Hours

Environment

Temp: -152 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 57,171,010 km

• M1: 134,339 km (0.062 R)
• M2: 625,618 km (0.107 R)
• M3: 1,087,577 km (0.068 R)
• M4: 1,761,665 km (0.063 R)
• M5: 2,580,713 km (0.09 R)
• M6: 3,415,170 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 194.9

Radius: 9.2

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.52 AU - 0.8 AU

Year: 364 Days

Day: 14.5 Hours

Environment

Temp: -157 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,171,010 km

• M1: 114,442 km (0.041 R)
• M2: 409,300 km (0.09 R)
• M3: 774,019 km (0.067 R)
• M4: 1,089,521 km (0.076 R)
• M5: 1,470,397 km (0.108 R)
• M6: 1,993,392 km (0.096 R)
• M7: 2,505,316 km (0.046 R)
• M8: 2,920,300 km (0.033 R)
• M9: 3,263,777 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 455.3

Radius: 14.7

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.53 AU - 0.83 AU

Year: 380 Days

Day: 12.4 Hours

Environment

Temp: -150 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 57,171,010 km

• M1: 182,958 km (0.096 R)
• M2: 807,679 km (0.087 R)
• M3: 1,352,814 km (0.072 R)
• M4: 2,040,814 km (0.089 R)
• M5: 2,985,674 km (0.116 R)
• M6: 3,465,285 km (0.114 R)
• M7: 4,411,192 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 731.5

Radius: 8.7

Gravity: 9.66 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.83 AU - 0.87 AU

Year: 532 Days

Day: 6.6 Hours

Environment

Temp: -172 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 57,171,010 km

• M1: 108,159 km (0.093 R)
• M2: 708,944 km (0.111 R)
• M3: 991,535 km (0.112 R)
• M4: 1,404,275 km (0.12 R)
• M5: 1,741,020 km (0.116 R)
• M6: 2,446,673 km (0.05 R)
• M7: 2,793,291 km (0.099 R)
• M8: 3,112,982 km (0.061 R)
• M9: 3,559,831 km (0.094 R)
• M10: 4,221,802 km (0.076 R)
• M11: 4,866,120 km (0.116 R)
• M12: 5,144,970 km (0.034 R)
• M13: 5,434,591 km (0.076 R)
• M14: 6,466,368 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 261.4

Radius: 12.6

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.72 AU - 1.74 AU

Year: 1543 Days

Day: 10.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 57,171,010 km

• M1: 156,779 km (0.12 R)
• M2: 554,111 km (0.075 R)
• M3: 956,080 km (0.108 R)
• M4: 1,597,855 km (0.039 R)
• M5: 2,262,369 km (0.114 R)
• M6: 3,158,161 km (0.12 R)
• M7: 4,002,940 km (0.115 R)
• M8: 4,757,960 km (0.084 R)
• M9: 5,293,371 km (0.081 R)
• M10: 6,246,609 km (0.079 R)
• M11: 6,663,089 km (0.111 R)
• M12: 7,310,998 km (0.106 R)
• M13: 8,076,939 km (0.106 R)
• M14: 9,032,719 km (0.108 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 560.5

Radius: 12.7

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 4.33 AU - 5.81 AU

Year: 7743 Days

Day: 14.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,171,010 km

• M1: 158,275 km (0.107 R)
• M2: 678,277 km (0.04 R)
• M3: 1,236,576 km (0.116 R)
• M4: 2,272,990 km (0.036 R)
• M5: 2,695,903 km (0.113 R)
• M6: 3,386,597 km (0.066 R)
• M7: 4,586,820 km (0.106 R)
• M8: 6,251,994 km (0.102 R)
• M9: 9,129,958 km (0.083 R)
• M10: 9,842,642 km (0.061 R)
• M11: 11,735,654 km (0.092 R)
• M12: 12,632,643 km (0.076 R)
• M13: 14,326,390 km (0.086 R)
• M14: 16,167,042 km (0.099 R)
• M15: 19,073,280 km (0.067 R)
• M16: 28,526,519 km (0.12 R)
• M17: 30,243,304 km (0.102 R)
• M18: 32,332,438 km (0.082 R)
• M19: 34,092,607 km (0.075 R)
• M20: 36,907,141 km (0.12 R)

Asteroid Belt

Center: 5.55 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 6.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 206.7

Radius: 5.8

Gravity: 6.14 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 5.39 AU - 6.65 AU

Year: 10018 Days

Day: 22.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 57,171,010 km

• M1: 72,256 km (0.119 R)
• M2: 544,387 km (0.099 R)
• M3: 800,049 km (0.07 R)
• M4: 1,195,137 km (0.105 R)
• M5: 1,834,519 km (0.035 R)
• M6: 2,417,801 km (0.119 R)
• M7: 3,322,120 km (0.095 R)
• M8: 4,282,538 km (0.096 R)
• M9: 5,803,500 km (0.105 R)
• M10: 7,615,878 km (0.061 R)
• M11: 8,334,546 km (0.083 R)
• M12: 9,014,917 km (0.115 R)
• M13: 10,037,568 km (0.088 R)
• M14: 11,664,595 km (0.104 R)
• M15: 15,138,108 km (0.079 R)
• M16: 19,657,011 km (0.067 R)
• M17: 23,877,765 km (0.11 R)
• M18: 25,739,211 km (0.086 R)
• M19: 29,566,074 km (0.067 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 793

Radius: 8

Gravity: 12.39 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 5.92 AU - 7.74 AU

Year: 12107 Days

Day: 24.5 Hours

Environment

Temp: -230 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 57,171,010 km

• M1: 101,427 km (0.104 R)
• M2: 690,693 km (0.109 R)
• M3: 1,068,278 km (0.052 R)
• M4: 1,406,818 km (0.052 R)
• M5: 2,188,018 km (0.111 R)
• M6: 3,061,221 km (0.103 R)
• M7: 3,356,378 km (0.111 R)
• M8: 5,128,664 km (0.087 R)
• M9: 8,217,112 km (0.05 R)
• M10: 8,596,193 km (0.044 R)
• M11: 9,086,126 km (0.114 R)
• M12: 13,701,220 km (0.088 R)
• M13: 15,772,702 km (0.103 R)
• M14: 16,137,272 km (0.066 R)
• M15: 18,044,645 km (0.111 R)
• M16: 20,268,118 km (0.099 R)
• M17: 20,699,109 km (0.089 R)
• M18: 21,224,348 km (0.065 R)
• M19: 22,484,261 km (0.119 R)
• M20: 24,080,320 km (0.093 R)
• M21: 25,053,754 km (0.092 R)
• M22: 26,768,295 km (0.118 R)
• M23: 28,884,058 km (0.116 R)
• M24: 37,165,197 km (0.111 R)
• M25: 38,071,312 km (0.065 R)
• M26: 43,248,894 km (0.115 R)
• M27: 46,153,636 km (0.117 R)
• M28: 52,187,068 km (0.063 R)
• M29: 52,996,691 km (0.119 R)
• M30: 54,309,562 km (0.113 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: 193 - 17,551 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit