🌌 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: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 725.9

Radius: 13.3

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.53 AU - 0.81 AU

Year: 366 Days

Day: 6.6 Hours

Environment

Temp: -147 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 57,943,137 km

• M1: 167,101 km (0.109 R)
• M2: 650,601 km (0.063 R)
• M3: 2,332,081 km (0.077 R)
• M4: 2,827,400 km (0.082 R)
• M5: 3,531,407 km (0.063 R)
• M6: 4,137,129 km (0.027 R)
• M7: 4,957,973 km (0.085 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 750.4

Radius: 14.6

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.79 AU - 1.11 AU

Year: 617 Days

Day: 11.8 Hours

Environment

Temp: -166 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,943,137 km

• M1: 181,612 km (0.072 R)
• M2: 660,325 km (0.117 R)
• M3: 1,512,434 km (0.093 R)
• M4: 2,012,989 km (0.105 R)
• M5: 2,948,424 km (0.063 R)
• M6: 3,912,134 km (0.117 R)
• M7: 5,213,935 km (0.076 R)
• M8: 6,767,508 km (0.109 R)
• M9: 7,562,172 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 739.1

Radius: 8.7

Gravity: 9.76 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.9 AU - 1.06 AU

Year: 647 Days

Day: 9.1 Hours

Environment

Temp: -175 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 57,943,137 km

• M1: 108,458 km (0.114 R)
• M2: 409,898 km (0.057 R)
• M3: 778,358 km (0.119 R)
• M4: 1,181,823 km (0.114 R)
• M5: 1,495,380 km (0.117 R)
• M6: 1,830,180 km (0.066 R)
• M7: 2,427,076 km (0.103 R)
• M8: 3,404,997 km (0.097 R)
• M9: 3,717,657 km (0.059 R)
• M10: 4,354,196 km (0.114 R)
• M11: 5,165,914 km (0.105 R)
• M12: 5,824,144 km (0.073 R)
• M13: 6,414,308 km (0.106 R)
• M14: 7,087,199 km (0.03 R)
• M15: 7,759,941 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 825.6

Radius: 14.2

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.65 AU - 1.69 AU

Year: 1439 Days

Day: 13.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,943,137 km

• M1: 177,124 km (0.102 R)
• M2: 779,854 km (0.112 R)
• M3: 1,567,337 km (0.089 R)
• M4: 2,022,264 km (0.104 R)
• M5: 2,503,072 km (0.1 R)
• M6: 3,194,363 km (0.085 R)
• M7: 4,374,092 km (0.117 R)
• M8: 7,232,010 km (0.1 R)
• M9: 8,345,616 km (0.095 R)
• M10: 9,474,781 km (0.046 R)
• M11: 11,592,040 km (0.076 R)
• M12: 12,148,544 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130

Radius: 8.8

Gravity: 1.68 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.37 AU - 2.15 AU

Year: 1557 Days

Day: 11.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,943,137 km

• M1: 109,506 km (0.086 R)
• M2: 635,641 km (0.054 R)
• M3: 910,303 km (0.111 R)
• M4: 1,189,752 km (0.085 R)
• M5: 1,651,560 km (0.112 R)
• M6: 2,239,031 km (0.077 R)
• M7: 3,282,776 km (0.084 R)
• M8: 3,986,185 km (0.116 R)
• M9: 4,428,995 km (0.088 R)
• M10: 5,287,088 km (0.073 R)
• M11: 6,744,919 km (0.085 R)
• M12: 7,197,303 km (0.036 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 611.1

Radius: 13.6

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.64 AU - 2.54 AU

Year: 2015 Days

Day: 12.5 Hours

Environment

Temp: -198 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,943,137 km

• M1: 169,195 km (0.084 R)
• M2: 819,048 km (0.088 R)
• M3: 1,676,543 km (0.032 R)
• M4: 2,722,980 km (0.067 R)
• M5: 5,080,792 km (0.11 R)
• M6: 6,709,165 km (0.091 R)
• M7: 8,112,244 km (0.091 R)
• M8: 8,819,991 km (0.101 R)
• M9: 12,307,118 km (0.1 R)
• M10: 15,346,797 km (0.089 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 270

Radius: 11.4

Gravity: 2.08 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 4.63 AU - 4.97 AU

Year: 7013 Days

Day: 6.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 57,943,137 km

• M1: 141,819 km (0.112 R)
• M2: 1,179,430 km (0.069 R)
• M3: 2,172,011 km (0.067 R)
• M4: 2,881,105 km (0.033 R)
• M5: 3,759,843 km (0.112 R)
• M6: 4,609,410 km (0.11 R)
• M7: 5,810,082 km (0.039 R)
• M8: 7,208,373 km (0.119 R)
• M9: 7,791,356 km (0.043 R)
• M10: 8,629,703 km (0.11 R)
• M11: 9,012,673 km (0.119 R)
• M12: 9,567,681 km (0.08 R)
• M13: 12,497,705 km (0.092 R)
• M14: 16,675,675 km (0.115 R)
• M15: 17,452,536 km (0.119 R)
• M16: 18,004,253 km (0.053 R)
• M17: 19,013,889 km (0.083 R)
• M18: 20,939,663 km (0.104 R)
• M19: 21,985,053 km (0.119 R)
• M20: 22,556,816 km (0.115 R)
• M21: 24,407,341 km (0.074 R)
• M22: 27,575,525 km (0.034 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 276.4

Radius: 7.5

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 5.87 AU - 6.67 AU

Year: 10470 Days

Day: 23 Hours

Environment

Temp: -218 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 57,943,137 km

• M1: 94,396 km (0.087 R)
• M2: 384,616 km (0.094 R)
• M3: 802,293 km (0.061 R)
• M4: 1,047,634 km (0.099 R)
• M5: 1,512,434 km (0.115 R)
• M6: 2,372,622 km (0.119 R)
• M7: 2,715,650 km (0.063 R)
• M8: 2,969,368 km (0.114 R)
• M9: 3,501,937 km (0.111 R)
• M10: 4,021,939 km (0.079 R)
• M11: 4,646,659 km (0.091 R)
• M12: 7,461,044 km (0.084 R)
• M13: 7,883,060 km (0.105 R)
• M14: 13,297,007 km (0.074 R)
• M15: 14,205,963 km (0.099 R)
• M16: 16,788,322 km (0.056 R)
• M17: 17,181,166 km (0.055 R)
• M18: 18,190,054 km (0.093 R)
• M19: 20,399,315 km (0.025 R)
• M20: 27,543,810 km (0.073 R)
• M21: 34,273,471 km (0.066 R)
• M22: 35,118,250 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 359.9

Radius: 6.9

Gravity: 7.56 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 7.65 AU - 10.57 AU

Year: 18336 Days

Day: 24.5 Hours

Environment

Temp: -236 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 57,943,137 km

• M1: 86,019 km (0.112 R)
• M2: 744,848 km (0.09 R)
• M3: 1,302,249 km (0.087 R)
• M4: 2,830,392 km (0.095 R)
• M5: 6,605,045 km (0.081 R)
• M6: 8,797,252 km (0.103 R)
• M7: 9,145,666 km (0.114 R)
• M8: 10,913,763 km (0.116 R)
• M9: 14,900,098 km (0.075 R)
• M10: 16,048,261 km (0.082 R)
• M11: 18,519,917 km (0.031 R)
• M12: 18,845,592 km (0.094 R)
• M13: 24,592,095 km (0.101 R)
• M14: 26,913,405 km (0.105 R)
• M15: 29,156,775 km (0.101 R)
• M16: 38,712,937 km (0.104 R)
• M17: 56,565,648 km (0.094 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 552 - 16,217 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit