🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.05

Radius: 1.33

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.46 AU - 0.58 AU

Year: 246 Days

Day: 41.3 Hours

Environment

Temp: -122 °C

Axial Tilt: 43 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 579.9

Radius: 13.2

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.65 AU - 0.95 AU

Year: 469 Days

Day: 7.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 89,884,289 km

• M1: 164,707 km (0.056 R)
• M2: 595,250 km (0.05 R)
• M3: 1,113,307 km (0.07 R)
• M4: 1,598,453 km (0.114 R)
• M5: 2,065,049 km (0.1 R)
• M6: 2,507,560 km (0.112 R)
• M7: 3,024,719 km (0.084 R)
• M8: 3,662,156 km (0.101 R)
• M9: 4,073,251 km (0.082 R)
• M10: 5,176,086 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 712.9

Radius: 10.4

Gravity: 6.59 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.88 AU - 0.96 AU

Year: 579 Days

Day: 5.1 Hours

Environment

Temp: -155 °C

Axial Tilt: 41.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 89,884,289 km

• M1: 129,402 km (0.067 R)
• M2: 643,271 km (0.117 R)
• M3: 1,048,831 km (0.119 R)
• M4: 1,396,646 km (0.116 R)
• M5: 1,757,925 km (0.112 R)
• M6: 2,210,009 km (0.029 R)
• M7: 2,663,141 km (0.037 R)
• M8: 3,093,385 km (0.083 R)
• M9: 3,622,812 km (0.096 R)
• M10: 4,138,326 km (0.116 R)
• M11: 4,961,713 km (0.12 R)
• M12: 5,456,582 km (0.094 R)
• M13: 6,002,764 km (0.116 R)
• M14: 6,890,328 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11.5

Radius: 10.4

Gravity: 0.11 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 1.39 AU - 2.29 AU

Year: 1637 Days

Day: 12.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (2)

Outer Limit: 89,884,289 km

• M1: 308,920 km (0.116 R)
• M2: 1,371,214 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 923.7

Radius: 8.8

Gravity: 11.93 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 2.13 AU - 3.13 AU

Year: 2798 Days

Day: 7.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 89,884,289 km

• M1: 113,246 km (0.064 R)
• M2: 445,054 km (0.091 R)
• M3: 755,469 km (0.093 R)
• M4: 1,076,057 km (0.119 R)
• M5: 1,709,156 km (0.114 R)
• M6: 2,016,729 km (0.094 R)
• M7: 2,361,552 km (0.094 R)
• M8: 3,409,186 km (0.039 R)
• M9: 3,778,992 km (0.118 R)
• M10: 5,226,650 km (0.048 R)
• M11: 5,800,508 km (0.026 R)
• M12: 6,074,870 km (0.119 R)
• M13: 7,451,320 km (0.105 R)
• M14: 8,988,139 km (0.068 R)
• M15: 9,927,913 km (0.066 R)
• M16: 11,140,553 km (0.088 R)
• M17: 11,479,841 km (0.072 R)
• M18: 12,001,938 km (0.108 R)
• M19: 14,448,910 km (0.091 R)
• M20: 16,217,756 km (0.11 R)
• M21: 18,184,818 km (0.071 R)
• M22: 18,596,511 km (0.101 R)
• M23: 20,117,772 km (0.085 R)
• M24: 20,940,710 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 839.6

Radius: 11.5

Gravity: 6.35 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 3.23 AU - 3.53 AU

Year: 4076 Days

Day: 7.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 89,884,289 km

• M1: 143,165 km (0.103 R)
• M2: 530,923 km (0.063 R)
• M3: 939,175 km (0.062 R)
• M4: 1,707,061 km (0.067 R)
• M5: 2,192,357 km (0.119 R)
• M6: 4,760,653 km (0.08 R)
• M7: 6,511,995 km (0.039 R)
• M8: 6,993,401 km (0.108 R)
• M9: 8,544,432 km (0.105 R)
• M10: 9,082,984 km (0.115 R)
• M11: 10,703,578 km (0.101 R)
• M12: 11,193,661 km (0.046 R)
• M13: 11,792,052 km (0.034 R)
• M14: 13,254,820 km (0.12 R)
• M15: 14,348,381 km (0.057 R)
• M16: 15,165,634 km (0.036 R)
• M17: 15,956,109 km (0.073 R)
• M18: 17,012,569 km (0.12 R)
• M19: 17,928,108 km (0.108 R)
• M20: 18,556,419 km (0.108 R)
• M21: 19,790,901 km (0.095 R)
• M22: 21,850,265 km (0.076 R)
• M23: 22,494,882 km (0.053 R)
• M24: 24,124,452 km (0.111 R)
• M25: 25,672,790 km (0.039 R)
• M26: 26,471,343 km (0.028 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 240.7

Radius: 9

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 3.95 AU - 4.29 AU

Year: 5486 Days

Day: 5 Hours

Environment

Temp: -207 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 89,884,289 km

• M1: 113,096 km (0.114 R)
• M2: 468,541 km (0.119 R)
• M3: 872,006 km (0.059 R)
• M4: 1,610,271 km (0.113 R)
• M5: 2,194,750 km (0.03 R)
• M6: 2,733,153 km (0.096 R)
• M7: 3,338,576 km (0.025 R)
• M8: 4,581,435 km (0.119 R)
• M9: 5,057,306 km (0.054 R)
• M10: 5,435,639 km (0.066 R)
• M11: 5,751,889 km (0.118 R)
• M12: 6,249,152 km (0.113 R)
• M13: 7,141,653 km (0.097 R)
• M14: 7,881,564 km (0.057 R)
• M15: 8,814,456 km (0.071 R)
• M16: 9,819,006 km (0.119 R)
• M17: 10,249,549 km (0.113 R)
• M18: 10,692,508 km (0.101 R)
• M19: 11,022,820 km (0.101 R)
• M20: 11,660,256 km (0.105 R)
• M21: 12,098,728 km (0.069 R)
• M22: 14,110,969 km (0.081 R)
• M23: 15,015,886 km (0.094 R)
• M24: 15,746,223 km (0.099 R)
• M25: 17,108,910 km (0.065 R)
• M26: 19,943,042 km (0.113 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831.8

Radius: 13.1

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 4.04 AU - 6.6 AU

Year: 8050 Days

Day: 9.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 41.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 89,884,289 km

• M1: 163,062 km (0.1 R)
• M2: 835,355 km (0.108 R)
• M3: 1,341,444 km (0.03 R)
• M4: 2,069,387 km (0.103 R)
• M5: 2,525,362 km (0.098 R)
• M6: 3,571,350 km (0.113 R)
• M7: 4,021,939 km (0.081 R)
• M8: 4,510,525 km (0.041 R)
• M9: 6,184,974 km (0.107 R)
• M10: 6,615,816 km (0.032 R)
• M11: 9,638,441 km (0.109 R)
• M12: 12,214,965 km (0.083 R)
• M13: 19,516,688 km (0.089 R)
• M14: 20,212,468 km (0.066 R)
• M15: 21,735,673 km (0.113 R)
• M16: 22,148,862 km (0.077 R)
• M17: 23,942,242 km (0.095 R)
• M18: 32,196,454 km (0.1 R)
• M19: 34,048,326 km (0.105 R)
• M20: 34,718,524 km (0.068 R)
• M21: 42,425,507 km (0.105 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 994.9

Radius: 5.7

Gravity: 30.62 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 8.86 AU - 11.5 AU

Year: 21307 Days

Day: 15.6 Hours

Environment

Temp: -240 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 89,884,289 km

• M1: 70,909 km (0.111 R)
• M2: 667,655 km (0.112 R)
• M3: 1,135,448 km (0.11 R)
• M4: 1,440,777 km (0.073 R)
• M5: 7,566,062 km (0.069 R)
• M6: 8,038,791 km (0.101 R)
• M7: 11,096,721 km (0.096 R)
• M8: 12,196,266 km (0.061 R)
• M9: 14,291,982 km (0.088 R)
• M10: 14,529,843 km (0.077 R)
• M11: 15,507,914 km (0.101 R)
• M12: 21,683,763 km (0.115 R)
• M13: 24,059,078 km (0.081 R)
• M14: 37,960,908 km (0.082 R)
• M15: 42,202,158 km (0.109 R)
• M16: 43,516,973 km (0.064 R)
• M17: 55,813,619 km (0.074 R)
• M18: 56,206,613 km (0.074 R)
• M19: 61,694,461 km (0.115 R)
• M20: 63,386,563 km (0.076 R)
• M21: 64,028,936 km (0.091 R)
• M22: 65,544,811 km (0.118 R)
• M23: 71,847,818 km (0.048 R)
• M24: 81,282,956 km (0.066 R)
• M25: 84,086,121 km (0.114 R)
• M26: 85,902,987 km (0.119 R)
• M27: 87,746,033 km (0.111 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 357 - 20,008 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit