🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 193.4

Radius: 9

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.68 AU - 0.68 AU

Year: 357 Days

Day: 9 Hours

Environment

Temp: -139 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 71,141,139 km

• M1: 111,899 km (0.09 R)
• M2: 451,786 km (0.085 R)
• M3: 771,476 km (0.099 R)
• M4: 1,111,662 km (0.117 R)
• M5: 1,452,296 km (0.07 R)
• M6: 1,875,658 km (0.09 R)
• M7: 2,334,026 km (0.118 R)
• M8: 2,736,295 km (0.102 R)
• M9: 3,212,614 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 989.7

Radius: 12.2

Gravity: 6.65 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.81 AU - 1.01 AU

Year: 552 Days

Day: 7.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 71,141,139 km

• M1: 151,692 km (0.042 R)
• M2: 710,291 km (0.082 R)
• M3: 1,185,713 km (0.109 R)
• M4: 1,917,546 km (0.047 R)
• M5: 2,448,020 km (0.064 R)
• M6: 2,944,086 km (0.04 R)
• M7: 3,414,721 km (0.086 R)
• M8: 4,983,703 km (0.107 R)
• M9: 5,509,690 km (0.08 R)
• M10: 6,348,186 km (0.048 R)
• M11: 7,358,121 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 753.2

Radius: 14.9

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 1.07 AU - 1.55 AU

Year: 953 Days

Day: 14.1 Hours

Environment

Temp: -175 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 71,141,139 km

• M1: 185,352 km (0.085 R)
• M2: 666,309 km (0.073 R)
• M3: 1,152,951 km (0.099 R)
• M4: 2,092,874 km (0.112 R)
• M5: 2,905,939 km (0.066 R)
• M6: 3,530,659 km (0.057 R)
• M7: 4,671,343 km (0.087 R)
• M8: 5,241,461 km (0.087 R)
• M9: 5,734,834 km (0.1 R)
• M10: 6,908,130 km (0.09 R)
• M11: 8,579,887 km (0.111 R)
• M12: 10,143,035 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 374.9

Radius: 8.3

Gravity: 5.44 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 2.52 AU - 2.8 AU

Year: 2758 Days

Day: 14.7 Hours

Environment

Temp: -192 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,141,139 km

• M1: 103,372 km (0.105 R)
• M2: 540,198 km (0.079 R)
• M3: 960,119 km (0.061 R)
• M4: 1,232,836 km (0.102 R)
• M5: 1,648,269 km (0.114 R)
• M6: 2,438,146 km (0.035 R)
• M7: 3,741,443 km (0.098 R)
• M8: 4,114,839 km (0.117 R)
• M9: 10,278,870 km (0.111 R)
• M10: 11,470,417 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 700.8

Radius: 11.4

Gravity: 5.39 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 3.18 AU - 3.86 AU

Year: 4199 Days

Day: 13.7 Hours

Environment

Temp: -204 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 71,141,139 km

• M1: 141,819 km (0.117 R)
• M2: 1,008,140 km (0.108 R)
• M3: 1,573,919 km (0.058 R)
• M4: 2,421,092 km (0.071 R)
• M5: 2,938,850 km (0.079 R)
• M6: 3,330,797 km (0.099 R)
• M7: 4,062,629 km (0.114 R)
• M8: 4,624,220 km (0.032 R)
• M9: 6,167,172 km (0.119 R)
• M10: 8,992,328 km (0.08 R)
• M11: 9,541,951 km (0.088 R)
• M12: 11,690,475 km (0.097 R)
• M13: 12,585,669 km (0.03 R)
• M14: 12,976,119 km (0.115 R)
• M15: 13,935,790 km (0.094 R)
• M16: 22,950,109 km (0.075 R)
• M17: 25,112,695 km (0.115 R)
• M18: 25,576,449 km (0.088 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 341

Radius: 3.1

Gravity: 35.48 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 5.52 AU - 8.24 AU

Year: 11474 Days

Day: 23.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 71,141,139 km

• M1: 38,596 km (0.063 R)
• M2: 463,604 km (0.109 R)
• M3: 606,470 km (0.095 R)
• M4: 803,939 km (0.034 R)
• M5: 1,021,903 km (0.111 R)
• M6: 1,242,111 km (0.057 R)
• M7: 1,822,102 km (0.034 R)
• M8: 2,094,669 km (0.057 R)
• M9: 2,412,415 km (0.067 R)
• M10: 3,557,886 km (0.09 R)
• M11: 3,854,389 km (0.063 R)
• M12: 5,556,514 km (0.115 R)
• M13: 6,196,344 km (0.095 R)
• M14: 6,846,646 km (0.12 R)
• M15: 7,226,924 km (0.108 R)
• M16: 7,461,643 km (0.095 R)
• M17: 9,573,516 km (0.095 R)
• M18: 11,148,781 km (0.056 R)
• M19: 11,304,662 km (0.102 R)
• M20: 11,462,189 km (0.1 R)
• M21: 11,621,062 km (0.107 R)
• M22: 11,835,286 km (0.108 R)
• M23: 12,161,409 km (0.088 R)
• M24: 13,763,004 km (0.116 R)
• M25: 17,100,533 km (0.092 R)
• M26: 26,312,470 km (0.102 R)
• M27: 29,363,220 km (0.062 R)
• M28: 31,695,899 km (0.079 R)
• M29: 35,590,381 km (0.1 R)
• M30: 38,003,095 km (0.109 R)
• M31: 40,034,335 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 306.4

Radius: 6.9

Gravity: 6.44 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 7.52 AU - 9.44 AU

Year: 15701 Days

Day: 20.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 71,141,139 km

• M1: 85,869 km (0.082 R)
• M2: 446,699 km (0.117 R)
• M3: 786,436 km (0.107 R)
• M4: 1,354,908 km (0.101 R)
• M5: 1,572,872 km (0.087 R)
• M6: 3,132,430 km (0.046 R)
• M7: 5,451,047 km (0.096 R)
• M8: 6,377,058 km (0.116 R)
• M9: 7,403,898 km (0.106 R)
• M10: 8,400,519 km (0.027 R)
• M11: 9,386,070 km (0.064 R)
• M12: 10,870,828 km (0.104 R)
• M13: 11,472,960 km (0.08 R)
• M14: 12,446,842 km (0.115 R)
• M15: 13,724,557 km (0.088 R)
• M16: 14,105,134 km (0.105 R)
• M17: 14,362,742 km (0.091 R)
• M18: 15,492,954 km (0.09 R)
• M19: 16,325,466 km (0.082 R)
• M20: 17,041,890 km (0.105 R)
• M21: 17,481,708 km (0.118 R)
• M22: 21,615,546 km (0.102 R)
• M23: 22,566,540 km (0.101 R)
• M24: 29,281,390 km (0.12 R)
• M25: 32,080,665 km (0.079 R)
• M26: 36,003,570 km (0.105 R)
• M27: 38,579,944 km (0.109 R)
• M28: 39,210,948 km (0.06 R)
• M29: 41,145,398 km (0.074 R)
• M30: 48,635,913 km (0.076 R)
• M31: 49,520,336 km (0.048 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 704.5

Radius: 3.6

Gravity: 54.36 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 7.29 AU - 11.17 AU

Year: 17829 Days

Day: 15.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 78.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 71,141,139 km

• M1: 44,730 km (0.093 R)
• M2: 167,699 km (0.111 R)
• M3: 1,308,832 km (0.061 R)
• M4: 1,507,348 km (0.08 R)
• M5: 2,183,381 km (0.113 R)
• M6: 2,599,712 km (0.099 R)
• M7: 2,888,735 km (0.041 R)
• M8: 4,165,553 km (0.088 R)
• M9: 4,980,712 km (0.099 R)
• M10: 5,937,390 km (0.112 R)
• M11: 6,919,949 km (0.039 R)
• M12: 8,511,969 km (0.112 R)
• M13: 9,365,275 km (0.084 R)
• M14: 11,116,019 km (0.056 R)
• M15: 12,867,810 km (0.062 R)
• M16: 22,301,303 km (0.086 R)
• M17: 26,581,298 km (0.1 R)
• M18: 27,930,371 km (0.079 R)
• M19: 34,436,682 km (0.093 R)
• M20: 53,092,733 km (0.099 R)
• M21: 55,046,332 km (0.119 R)
• M22: 59,663,520 km (0.084 R)
• M23: 62,358,376 km (0.092 R)
• M24: 66,144,100 km (0.102 R)
• M25: 67,782,795 km (0.114 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 489 - 15,784 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit