🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 935.4

Radius: 14.7

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.68 AU - 0.7 AU

Year: 376 Days

Day: 14.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,761,271 km

• M1: 182,809 km (0.104 R)
• M2: 822,639 km (0.073 R)
• M3: 1,294,171 km (0.092 R)
• M4: 1,823,598 km (0.074 R)
• M5: 2,424,233 km (0.096 R)
• M6: 2,949,621 km (0.102 R)
• M7: 3,599,774 km (0.088 R)
• M8: 4,220,306 km (0.029 R)
• M9: 4,881,678 km (0.05 R)
• M10: 5,398,090 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 257.9

Radius: 14.2

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.87 AU - 1.41 AU

Year: 798 Days

Day: 13 Hours

Environment

Temp: -157 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,761,271 km

• M1: 176,525 km (0.093 R)
• M2: 622,626 km (0.115 R)
• M3: 1,064,389 km (0.053 R)
• M4: 1,946,567 km (0.101 R)
• M5: 3,300,877 km (0.119 R)
• M6: 3,849,452 km (0.093 R)
• M7: 5,890,566 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 326.1

Radius: 8.2

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 2.41 AU - 2.83 AU

Year: 2782 Days

Day: 12.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 66,761,271 km

• M1: 102,026 km (0.087 R)
• M2: 358,586 km (0.117 R)
• M3: 616,493 km (0.076 R)
• M4: 885,320 km (0.027 R)
• M5: 1,674,898 km (0.081 R)
• M6: 2,059,364 km (0.047 R)
• M7: 3,390,037 km (0.086 R)
• M8: 4,295,553 km (0.096 R)
• M9: 4,825,878 km (0.117 R)
• M10: 5,308,181 km (0.117 R)
• M11: 6,017,275 km (0.063 R)
• M12: 6,681,490 km (0.096 R)
• M13: 8,369,253 km (0.09 R)
• M14: 9,528,786 km (0.088 R)
• M15: 10,828,492 km (0.066 R)
• M16: 11,771,108 km (0.048 R)
• M17: 12,973,277 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421

Radius: 10.6

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 3.2 AU - 3.42 AU

Year: 3950 Days

Day: 13.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 66,761,271 km

• M1: 132,095 km (0.108 R)
• M2: 472,580 km (0.042 R)
• M3: 1,050,925 km (0.066 R)
• M4: 1,646,025 km (0.114 R)
• M5: 2,296,477 km (0.109 R)
• M6: 3,360,417 km (0.111 R)
• M7: 3,900,764 km (0.12 R)
• M8: 4,498,109 km (0.064 R)
• M9: 5,956,987 km (0.11 R)
• M10: 6,430,614 km (0.061 R)
• M11: 7,676,764 km (0.103 R)
• M12: 8,616,089 km (0.114 R)
• M13: 8,969,589 km (0.103 R)
• M14: 9,480,765 km (0.086 R)
• M15: 9,972,643 km (0.104 R)
• M16: 12,201,053 km (0.034 R)
• M17: 14,149,565 km (0.117 R)
• M18: 14,893,366 km (0.119 R)
• M19: 15,403,494 km (0.108 R)
• M20: 16,243,935 km (0.111 R)
• M21: 16,784,582 km (0.097 R)
• M22: 18,420,584 km (0.119 R)
• M23: 19,247,262 km (0.049 R)
• M24: 19,608,990 km (0.052 R)
• M25: 20,596,036 km (0.092 R)
• M26: 21,229,583 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 932

Radius: 12.3

Gravity: 6.16 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 2.93 AU - 4.79 AU

Year: 4975 Days

Day: 9.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 66,761,271 km

• M1: 153,039 km (0.079 R)
• M2: 556,803 km (0.115 R)
• M3: 962,513 km (0.118 R)
• M4: 1,663,379 km (0.065 R)
• M5: 2,277,478 km (0.093 R)
• M6: 2,755,593 km (0.118 R)
• M7: 3,870,097 km (0.105 R)
• M8: 4,608,362 km (0.084 R)
• M9: 5,827,735 km (0.078 R)
• M10: 6,596,219 km (0.118 R)
• M11: 8,335,294 km (0.084 R)
• M12: 13,226,247 km (0.107 R)
• M13: 15,131,077 km (0.113 R)
• M14: 18,996,536 km (0.092 R)
• M15: 20,610,847 km (0.114 R)
• M16: 24,676,169 km (0.12 R)
• M17: 25,582,283 km (0.067 R)
• M18: 27,026,202 km (0.088 R)
• M19: 27,900,601 km (0.095 R)
• M20: 29,890,403 km (0.118 R)
• M21: 33,149,093 km (0.1 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 482.5

Radius: 5.8

Gravity: 14.34 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 6.11 AU - 6.55 AU

Year: 10448 Days

Day: 21.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 124.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 66,761,271 km

• M1: 72,256 km (0.096 R)
• M2: 578,196 km (0.117 R)
• M3: 1,197,531 km (0.06 R)
• M4: 1,633,310 km (0.099 R)
• M5: 1,984,117 km (0.041 R)
• M6: 2,535,086 km (0.098 R)
• M7: 3,027,711 km (0.054 R)
• M8: 3,296,987 km (0.106 R)
• M9: 3,781,086 km (0.079 R)
• M10: 4,066,968 km (0.104 R)
• M11: 5,325,086 km (0.1 R)
• M12: 5,785,398 km (0.101 R)
• M13: 6,785,311 km (0.082 R)
• M14: 7,853,888 km (0.11 R)
• M15: 8,848,864 km (0.079 R)
• M16: 9,213,882 km (0.085 R)
• M17: 9,732,089 km (0.094 R)
• M18: 10,022,908 km (0.105 R)
• M19: 10,570,885 km (0.096 R)
• M20: 10,878,159 km (0.092 R)
• M21: 11,564,364 km (0.078 R)
• M22: 12,111,593 km (0.099 R)
• M23: 12,504,736 km (0.087 R)
• M24: 15,696,557 km (0.108 R)
• M25: 17,479,314 km (0.091 R)
• M26: 21,768,884 km (0.074 R)
• M27: 22,182,971 km (0.073 R)
• M28: 24,688,735 km (0.092 R)
• M29: 26,805,395 km (0.119 R)
• M30: 30,254,075 km (0.088 R)
• M31: 32,351,736 km (0.112 R)
• M32: 34,881,586 km (0.112 R)
• M33: 36,021,671 km (0.032 R)
• M34: 37,540,389 km (0.079 R)
• M35: 42,997,420 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 680.9

Radius: 5.4

Gravity: 23.35 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 7.81 AU - 9.35 AU

Year: 16487 Days

Day: 19.9 Hours

Environment

Temp: -235 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 66,761,271 km

• M1: 69,413 km (0.091 R)
• M2: 296,802 km (0.106 R)
• M3: 702,661 km (0.098 R)
• M4: 943,813 km (0.059 R)
• M5: 1,160,131 km (0.038 R)
• M6: 2,377,858 km (0.039 R)
• M7: 3,418,162 km (0.064 R)
• M8: 3,640,763 km (0.105 R)
• M9: 7,351,239 km (0.03 R)
• M10: 7,675,867 km (0.067 R)
• M11: 8,605,618 km (0.085 R)
• M12: 10,923,038 km (0.119 R)
• M13: 14,617,657 km (0.09 R)
• M14: 18,383,035 km (0.08 R)
• M15: 19,592,235 km (0.101 R)
• M16: 21,976,825 km (0.06 R)
• M17: 22,456,585 km (0.062 R)
• M18: 23,736,545 km (0.089 R)
• M19: 26,983,866 km (0.098 R)
• M20: 29,344,221 km (0.116 R)
• M21: 36,840,121 km (0.065 R)
• M22: 61,693,264 km (0.066 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 480 - 11,958 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit