🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 46.4

Radius: 12.9

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.44 AU - 0.66 AU

Year: 287 Days

Day: 11.2 Hours

Environment

Temp: -150 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 83,202,993 km

• M1: 160,369 km (0.096 R)
• M2: 791,522 km (0.107 R)
• M3: 1,321,847 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 686.8

Radius: 9.2

Gravity: 8.11 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.6 AU - 0.92 AU

Year: 466 Days

Day: 14.1 Hours

Environment

Temp: -155 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 83,202,993 km

• M1: 114,442 km (0.111 R)
• M2: 448,943 km (0.098 R)
• M3: 890,107 km (0.104 R)
• M4: 1,225,506 km (0.073 R)
• M5: 1,631,365 km (0.095 R)
• M6: 2,116,959 km (0.034 R)
• M7: 2,534,786 km (0.074 R)
• M8: 3,258,840 km (0.12 R)
• M9: 4,440,663 km (0.039 R)
• M10: 5,049,227 km (0.097 R)
• M11: 5,423,671 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 813.8

Radius: 9.6

Gravity: 8.83 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1.01 AU - 1.65 AU

Year: 1078 Days

Day: 9.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 83,202,993 km

• M1: 119,379 km (0.065 R)
• M2: 574,605 km (0.098 R)
• M3: 944,561 km (0.084 R)
• M4: 1,256,323 km (0.062 R)
• M5: 1,576,313 km (0.1 R)
• M6: 2,064,899 km (0.062 R)
• M7: 2,844,903 km (0.107 R)
• M8: 3,317,482 km (0.104 R)
• M9: 3,729,475 km (0.09 R)
• M10: 4,492,274 km (0.095 R)
• M11: 5,056,258 km (0.066 R)
• M12: 5,709,253 km (0.097 R)
• M13: 6,122,891 km (0.064 R)
• M14: 6,440,338 km (0.117 R)
• M15: 6,768,855 km (0.111 R)
• M16: 7,587,754 km (0.082 R)
• M17: 8,034,752 km (0.092 R)
• M18: 9,243,952 km (0.038 R)
• M19: 9,632,457 km (0.075 R)
• M20: 10,125,532 km (0.099 R)
• M21: 10,570,586 km (0.12 R)
• M22: 10,929,471 km (0.104 R)
• M23: 11,296,434 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45.5

Radius: 11.8

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 2.53 AU - 3.41 AU

Year: 3598 Days

Day: 11.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 83,202,993 km

• M1: 150,495 km (0.095 R)
• M2: 575,802 km (0.07 R)
• M3: 1,298,809 km (0.099 R)
• M4: 1,995,336 km (0.086 R)
• M5: 3,255,848 km (0.067 R)
• M6: 4,003,239 km (0.12 R)
• M7: 4,879,733 km (0.029 R)
• M8: 5,480,219 km (0.11 R)
• M9: 5,962,223 km (0.102 R)
• M10: 6,626,886 km (0.096 R)
• M11: 7,035,139 km (0.084 R)
• M12: 8,361,923 km (0.081 R)
• M13: 9,278,808 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.4

Radius: 8.3

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 3.71 AU - 5.53 AU

Year: 6980 Days

Day: 10.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 83,202,993 km

• M1: 105,616 km (0.078 R)
• M2: 655,837 km (0.069 R)
• M3: 2,151,965 km (0.092 R)
• M4: 2,749,459 km (0.033 R)
• M5: 3,375,676 km (0.081 R)
• M6: 5,110,862 km (0.039 R)
• M7: 6,316,770 km (0.095 R)
• M8: 6,585,149 km (0.099 R)
• M9: 7,305,911 km (0.092 R)
• M10: 7,568,605 km (0.039 R)
• M11: 8,574,352 km (0.065 R)
• M12: 9,203,859 km (0.1 R)
• M13: 14,814,228 km (0.109 R)
• M14: 16,437,365 km (0.114 R)
• M15: 17,700,719 km (0.099 R)
• M16: 19,275,686 km (0.11 R)
• M17: 20,290,109 km (0.096 R)
• M18: 21,007,879 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 926.9

Radius: 10.6

Gravity: 8.25 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 4.33 AU - 4.95 AU

Year: 7026 Days

Day: 13.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 83,202,993 km

• M1: 132,394 km (0.063 R)
• M2: 588,817 km (0.089 R)
• M3: 926,759 km (0.12 R)
• M4: 1,462,319 km (0.075 R)
• M5: 2,609,436 km (0.06 R)
• M6: 3,052,844 km (0.086 R)
• M7: 4,779,951 km (0.035 R)
• M8: 5,542,900 km (0.109 R)
• M9: 7,625,153 km (0.114 R)
• M10: 9,472,986 km (0.096 R)
• M11: 11,708,427 km (0.088 R)
• M12: 12,139,718 km (0.103 R)
• M13: 13,439,424 km (0.102 R)
• M14: 18,394,405 km (0.093 R)
• M15: 22,742,317 km (0.087 R)
• M16: 27,352,175 km (0.102 R)
• M17: 27,730,658 km (0.063 R)
• M18: 28,304,964 km (0.104 R)
• M19: 36,510,408 km (0.099 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 33.2

Radius: 7.8

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 6.95 AU - 7.91 AU

Year: 14236 Days

Day: 15.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 83,202,993 km

• M1: 100,231 km (0.041 R)
• M2: 453,581 km (0.106 R)
• M3: 1,527,544 km (0.111 R)
• M4: 1,823,299 km (0.078 R)
• M5: 4,371,100 km (0.116 R)
• M6: 8,453,327 km (0.115 R)
• M7: 12,506,083 km (0.118 R)
• M8: 13,241,356 km (0.077 R)
• M9: 18,679,239 km (0.115 R)
• M10: 19,700,244 km (0.046 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 644.6

Radius: 3.7

Gravity: 47.09 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 9.72 AU - 11.08 AU

Year: 23575 Days

Day: 24.9 Hours

Environment

Temp: -234 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 83,202,993 km

• M1: 46,076 km (0.089 R)
• M2: 224,546 km (0.062 R)
• M3: 476,619 km (0.062 R)
• M4: 662,569 km (0.105 R)
• M5: 1,111,512 km (0.088 R)
• M6: 1,441,226 km (0.111 R)
• M7: 1,558,810 km (0.028 R)
• M8: 1,871,469 km (0.08 R)
• M9: 2,137,754 km (0.049 R)
• M10: 2,452,059 km (0.062 R)
• M11: 2,927,032 km (0.117 R)
• M12: 3,144,398 km (0.066 R)
• M13: 3,641,960 km (0.09 R)
• M14: 3,958,210 km (0.069 R)
• M15: 5,328,227 km (0.079 R)
• M16: 6,750,305 km (0.102 R)
• M17: 7,623,657 km (0.079 R)
• M18: 7,776,247 km (0.089 R)
• M19: 9,128,013 km (0.066 R)
• M20: 9,829,328 km (0.101 R)
• M21: 10,819,367 km (0.12 R)
• M22: 11,942,099 km (0.087 R)
• M23: 12,923,162 km (0.109 R)
• M24: 13,507,341 km (0.096 R)
• M25: 18,007,993 km (0.1 R)
• M26: 24,171,276 km (0.101 R)
• M27: 27,245,213 km (0.11 R)
• M28: 31,998,237 km (0.115 R)
• M29: 43,912,510 km (0.116 R)
• M30: 45,728,628 km (0.07 R)
• M31: 46,064,027 km (0.103 R)
• M32: 49,509,715 km (0.093 R)
• M33: 52,021,313 km (0.086 R)
• M34: 52,203,972 km (0.04 R)
• M35: 52,386,930 km (0.114 R)
• M36: 62,917,573 km (0.104 R)
• M37: 64,799,365 km (0.103 R)
• M38: 66,933,977 km (0.098 R)
• M39: 69,778,281 km (0.094 R)
• M40: 70,669,436 km (0.108 R)
• M41: 80,733,184 km (0.043 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 358 - 19,012 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit