🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.54 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 345.3

Radius: 12.6

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 1.07 AU - 1.09 AU

Year: 789 Days

Day: 7.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 52,878,381 km

• M1: 156,629 km (0.067 R)
• M2: 647,011 km (0.12 R)
• M3: 1,155,045 km (0.068 R)
• M4: 1,660,836 km (0.044 R)
• M5: 2,156,154 km (0.119 R)
• M6: 2,760,230 km (0.077 R)
• M7: 3,156,365 km (0.101 R)
• M8: 3,884,309 km (0.054 R)
• M9: 4,399,673 km (0.055 R)
• M10: 5,058,652 km (0.083 R)
• M11: 5,639,541 km (0.109 R)
• M12: 6,574,378 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 48.9

Radius: 14.3

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 1.28 AU - 1.5 AU

Year: 1152 Days

Day: 7.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 52,878,381 km

• M1: 180,864 km (0.066 R)
• M2: 855,999 km (0.115 R)
• M3: 1,439,132 km (0.088 R)
• M4: 1,983,817 km (0.03 R)
• M5: 2,999,138 km (0.118 R)
• M6: 3,670,683 km (0.05 R)
• M7: 4,693,932 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 66.1

Radius: 12

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.45 AU - 1.81 AU

Year: 1463 Days

Day: 7.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 52,878,381 km

• M1: 149,299 km (0.087 R)
• M2: 632,649 km (0.1 R)
• M3: 1,030,729 km (0.082 R)
• M4: 1,428,959 km (0.103 R)
• M5: 1,916,199 km (0.081 R)
• M6: 2,456,098 km (0.104 R)
• M7: 2,985,824 km (0.075 R)
• M8: 4,110,949 km (0.066 R)
• M9: 4,519,052 km (0.094 R)
• M10: 5,286,789 km (0.089 R)
• M11: 5,770,738 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 43.7

Radius: 9.4

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.87 AU - 1.89 AU

Year: 1812 Days

Day: 6.5 Hours

Environment

Temp: -198 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 52,878,381 km

• M1: 121,473 km (0.108 R)
• M2: 473,776 km (0.115 R)
• M3: 1,870,123 km (0.052 R)
• M4: 2,695,754 km (0.097 R)
• M5: 3,746,679 km (0.091 R)
• M6: 4,487,936 km (0.096 R)
• M7: 4,909,204 km (0.05 R)
• M8: 5,744,409 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 623.5

Radius: 10.8

Gravity: 5.35 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.76 AU - 2.24 AU

Year: 1988 Days

Day: 7.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 52,878,381 km

• M1: 149,598 km (0.119 R)
• M2: 610,808 km (0.041 R)
• M3: 1,272,031 km (0.048 R)
• M4: 1,691,503 km (0.08 R)
• M5: 4,811,068 km (0.087 R)
• M6: 5,356,053 km (0.072 R)
• M7: 7,297,235 km (0.11 R)
• M8: 10,113,863 km (0.111 R)
• M9: 10,501,771 km (0.094 R)
• M10: 10,972,854 km (0.113 R)
• M11: 11,841,120 km (0.116 R)
• M12: 12,592,251 km (0.049 R)
• M13: 13,165,959 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 334.4

Radius: 14.5

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 3.17 AU - 3.81 AU

Year: 4583 Days

Day: 10.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 52,878,381 km

• M1: 180,714 km (0.072 R)
• M2: 700,866 km (0.096 R)
• M3: 1,363,285 km (0.052 R)
• M4: 2,962,187 km (0.063 R)
• M5: 3,763,134 km (0.115 R)
• M6: 5,561,600 km (0.102 R)
• M7: 6,263,812 km (0.1 R)
• M8: 7,813,646 km (0.088 R)
• M9: 8,280,841 km (0.064 R)
• M10: 9,308,578 km (0.059 R)
• M11: 10,340,205 km (0.058 R)
• M12: 14,683,929 km (0.102 R)
• M13: 18,842,151 km (0.054 R)
• M14: 19,563,662 km (0.096 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 70

Radius: 4.8

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 4.78 AU - 6.66 AU

Year: 9616 Days

Day: 20.6 Hours

Environment

Temp: -234 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 52,878,381 km

• M1: 59,839 km (0.098 R)
• M2: 301,141 km (0.113 R)
• M3: 502,649 km (0.036 R)
• M4: 1,001,259 km (0.114 R)
• M5: 1,273,377 km (0.106 R)
• M6: 1,802,954 km (0.04 R)
• M7: 2,393,117 km (0.114 R)
• M8: 3,393,777 km (0.038 R)
• M9: 3,642,708 km (0.077 R)
• M10: 4,198,913 km (0.044 R)
• M11: 5,529,885 km (0.113 R)
• M12: 7,852,392 km (0.107 R)
• M13: 9,999,720 km (0.118 R)
• M14: 12,964,600 km (0.073 R)
• M15: 14,695,896 km (0.08 R)
• M16: 17,403,917 km (0.1 R)
• M17: 17,742,906 km (0.106 R)
• M18: 18,028,638 km (0.047 R)
• M19: 20,364,459 km (0.09 R)
• M20: 21,378,433 km (0.097 R)

Asteroid Belt

Center: 6 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 6.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 751.5

Radius: 3.2

Gravity: 73.39 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 5.22 AU - 7.34 AU

Year: 11062 Days

Day: 24.2 Hours

Environment

Temp: -236 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 52,878,381 km

• M1: 39,943 km (0.1 R)
• M2: 155,881 km (0.051 R)
• M3: 318,195 km (0.111 R)
• M4: 501,751 km (0.091 R)
• M5: 947,254 km (0.1 R)
• M6: 2,916,261 km (0.077 R)
• M7: 3,446,885 km (0.1 R)
• M8: 3,761,938 km (0.089 R)
• M9: 4,010,719 km (0.071 R)
• M10: 4,211,629 km (0.095 R)
• M11: 6,764,217 km (0.08 R)
• M12: 7,426,487 km (0.028 R)
• M13: 10,084,841 km (0.07 R)
• M14: 10,456,293 km (0.098 R)
• M15: 11,226,123 km (0.096 R)
• M16: 11,624,951 km (0.112 R)
• M17: 15,024,413 km (0.107 R)
• M18: 17,549,177 km (0.117 R)
• M19: 20,849,306 km (0.108 R)
• M20: 22,961,029 km (0.046 R)
• M21: 26,991,794 km (0.081 R)
• M22: 27,912,868 km (0.072 R)
• M23: 30,580,946 km (0.051 R)
• M24: 35,074,717 km (0.108 R)
• M25: 36,913,873 km (0.081 R)
• M26: 39,074,964 km (0.113 R)
• M27: 45,342,217 km (0.055 R)
• M28: 46,787,931 km (0.096 R)
• M29: 47,227,599 km (0.082 R)
• M30: 49,013,798 km (0.105 R)
• M31: 50,229,131 km (0.116 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 390 - 15,041 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit