🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 600.4

Radius: 10.7

Gravity: 5.24 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.77 AU - 0.81 AU

Year: 446 Days

Day: 10.7 Hours

Environment

Temp: -142 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 34,716,495 km

• M1: 133,142 km (0.118 R)
• M2: 504,893 km (0.089 R)
• M3: 859,440 km (0.105 R)
• M4: 1,244,953 km (0.097 R)
• M5: 1,717,982 km (0.065 R)
• M6: 2,273,439 km (0.12 R)
• M7: 2,758,286 km (0.096 R)
• M8: 3,152,626 km (0.112 R)
• M9: 3,596,632 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 894.5

Radius: 12.2

Gravity: 6.01 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 2.23 AU - 2.39 AU

Year: 2232 Days

Day: 8.3 Hours

Environment

Temp: -186 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 34,716,495 km

• M1: 151,842 km (0.093 R)
• M2: 699,819 km (0.101 R)
• M3: 1,209,648 km (0.051 R)
• M4: 1,609,673 km (0.11 R)
• M5: 2,471,656 km (0.11 R)
• M6: 3,788,117 km (0.086 R)
• M7: 4,221,652 km (0.084 R)
• M8: 5,236,823 km (0.111 R)
• M9: 5,751,440 km (0.079 R)
• M10: 6,628,532 km (0.06 R)
• M11: 8,383,764 km (0.058 R)
• M12: 8,986,643 km (0.107 R)
• M13: 10,736,789 km (0.063 R)
• M14: 11,610,740 km (0.084 R)
• M15: 12,704,150 km (0.119 R)
• M16: 13,681,772 km (0.096 R)
• M17: 14,329,681 km (0.106 R)
• M18: 16,140,713 km (0.117 R)
• M19: 16,916,677 km (0.057 R)
• M20: 19,222,279 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 258.7

Radius: 11.7

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 2.05 AU - 2.71 AU

Year: 2335 Days

Day: 5.4 Hours

Environment

Temp: -192 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 34,716,495 km

• M1: 145,559 km (0.098 R)
• M2: 559,346 km (0.099 R)
• M3: 1,244,505 km (0.063 R)
• M4: 1,636,750 km (0.05 R)
• M5: 2,439,044 km (0.116 R)
• M6: 3,534,998 km (0.099 R)
• M7: 4,035,103 km (0.08 R)
• M8: 4,854,152 km (0.112 R)
• M9: 6,310,188 km (0.116 R)
• M10: 6,947,475 km (0.063 R)
• M11: 7,845,062 km (0.084 R)
• M12: 8,495,065 km (0.076 R)
• M13: 9,180,522 km (0.095 R)
• M14: 9,742,561 km (0.107 R)
• M15: 10,628,330 km (0.073 R)
• M16: 12,903,714 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344.9

Radius: 9.4

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 2.86 AU - 3.58 AU

Year: 3674 Days

Day: 5.2 Hours

Environment

Temp: -211 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 34,716,495 km

• M1: 118,930 km (0.084 R)
• M2: 636,689 km (0.091 R)
• M3: 1,093,860 km (0.093 R)
• M4: 1,972,598 km (0.076 R)
• M5: 2,280,620 km (0.113 R)
• M6: 3,458,852 km (0.095 R)
• M7: 3,871,443 km (0.064 R)
• M8: 4,595,647 km (0.097 R)
• M9: 4,955,579 km (0.11 R)
• M10: 7,404,496 km (0.028 R)
• M11: 9,415,092 km (0.058 R)
• M12: 10,450,010 km (0.087 R)
• M13: 15,555,486 km (0.066 R)
• M14: 16,061,127 km (0.119 R)
• M15: 16,998,806 km (0.078 R)
• M16: 18,529,342 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 19.1

Radius: 8.7

Gravity: 0.25 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 4.05 AU - 5.05 AU

Year: 6171 Days

Day: 11.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 34,716,495 km

• M1: 108,159 km (0.083 R)
• M2: 908,657 km (0.107 R)
• M3: 1,297,762 km (0.078 R)
• M4: 1,998,927 km (0.102 R)
• M5: 2,338,065 km (0.115 R)
• M6: 4,794,761 km (0.118 R)
• M7: 5,113,704 km (0.117 R)
• M8: 6,399,348 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 149.8

Radius: 14.1

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 4.67 AU - 5.63 AU

Year: 7431 Days

Day: 5.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 34,716,495 km

• M1: 176,825 km (0.097 R)
• M2: 714,031 km (0.114 R)
• M3: 1,236,426 km (0.065 R)
• M4: 1,856,210 km (0.118 R)
• M5: 2,361,402 km (0.101 R)
• M6: 2,874,822 km (0.073 R)
• M7: 3,425,043 km (0.07 R)
• M8: 4,003,239 km (0.057 R)
• M9: 4,599,686 km (0.068 R)
• M10: 5,128,963 km (0.113 R)
• M11: 6,111,821 km (0.098 R)
• M12: 10,336,465 km (0.106 R)
• M13: 12,125,805 km (0.087 R)
• M14: 12,580,732 km (0.057 R)
• M15: 16,146,846 km (0.108 R)
• M16: 17,261,949 km (0.1 R)
• M17: 19,521,625 km (0.063 R)
• M18: 20,084,412 km (0.086 R)
• M19: 21,046,476 km (0.087 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 221.9

Radius: 3.4

Gravity: 19.2 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 5.62 AU - 7.62 AU

Year: 10830 Days

Day: 19.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 34,716,495 km

• M1: 42,336 km (0.071 R)
• M2: 161,715 km (0.027 R)
• M3: 354,248 km (0.114 R)
• M4: 521,648 km (0.084 R)
• M5: 740,061 km (0.106 R)
• M6: 941,569 km (0.093 R)
• M7: 1,478,476 km (0.111 R)
• M8: 1,687,165 km (0.058 R)
• M9: 2,147,029 km (0.057 R)
• M10: 3,097,873 km (0.08 R)
• M11: 5,204,510 km (0.04 R)
• M12: 11,582,316 km (0.042 R)
• M13: 11,833,940 km (0.112 R)
• M14: 12,192,226 km (0.109 R)
• M15: 13,586,628 km (0.087 R)
• M16: 16,245,132 km (0.095 R)
• M17: 21,186,649 km (0.088 R)
• M18: 24,734,512 km (0.045 R)
• M19: 31,786,406 km (0.087 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 202 - 11,583 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit