🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 838.5

Radius: 14.8

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.74 AU - 1.04 AU

Year: 534 Days

Day: 11.6 Hours

Environment

Temp: -144 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,069,365 km

• M1: 185,053 km (0.116 R)
• M2: 716,574 km (0.113 R)
• M3: 1,588,131 km (0.105 R)
• M4: 2,202,679 km (0.085 R)
• M5: 2,752,302 km (0.107 R)
• M6: 3,331,395 km (0.114 R)
• M7: 4,133,838 km (0.11 R)
• M8: 4,597,292 km (0.081 R)
• M9: 5,095,453 km (0.057 R)
• M10: 6,144,733 km (0.08 R)
• M11: 6,893,919 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 181.7

Radius: 13.6

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.01 AU - 1.33 AU

Year: 805 Days

Day: 7.7 Hours

Environment

Temp: -168 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 36,069,365 km

• M1: 185,801 km (0.07 R)
• M2: 1,012,778 km (0.091 R)
• M3: 1,542,354 km (0.05 R)
• M4: 2,732,405 km (0.077 R)
• M5: 3,173,868 km (0.091 R)
• M6: 3,602,616 km (0.083 R)
• M7: 4,436,923 km (0.103 R)
• M8: 5,348,722 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 791.1

Radius: 11.4

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.94 AU - 1.48 AU

Year: 846 Days

Day: 9 Hours

Environment

Temp: -160 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 36,069,365 km

• M1: 141,819 km (0.086 R)
• M2: 572,661 km (0.037 R)
• M3: 938,876 km (0.074 R)
• M4: 2,184,428 km (0.075 R)
• M5: 4,059,637 km (0.101 R)
• M6: 5,524,799 km (0.052 R)
• M7: 6,540,868 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 296.2

Radius: 8.2

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 1.52 AU - 2.34 AU

Year: 1705 Days

Day: 6.2 Hours

Environment

Temp: -191 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 36,069,365 km

• M1: 102,175 km (0.088 R)
• M2: 360,232 km (0.09 R)
• M3: 722,408 km (0.079 R)
• M4: 986,000 km (0.084 R)
• M5: 2,223,174 km (0.099 R)
• M6: 2,670,472 km (0.09 R)
• M7: 2,956,054 km (0.104 R)
• M8: 3,262,131 km (0.109 R)
• M9: 4,468,488 km (0.07 R)
• M10: 4,987,593 km (0.116 R)
• M11: 5,362,186 km (0.054 R)
• M12: 5,905,226 km (0.119 R)
• M13: 6,670,120 km (0.092 R)
• M14: 7,027,809 km (0.105 R)
• M15: 9,127,864 km (0.096 R)
• M16: 9,479,867 km (0.062 R)
• M17: 10,117,603 km (0.03 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 840.6

Radius: 10

Gravity: 8.41 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 1.9 AU - 2.54 AU

Year: 2103 Days

Day: 7.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 36,069,365 km

• M1: 150,346 km (0.075 R)
• M2: 601,383 km (0.093 R)
• M3: 1,286,542 km (0.041 R)
• M4: 1,659,788 km (0.09 R)
• M5: 2,884,397 km (0.097 R)
• M6: 3,641,063 km (0.097 R)
• M7: 6,386,483 km (0.081 R)
• M8: 7,251,906 km (0.093 R)
• M9: 7,577,282 km (0.078 R)
• M10: 8,099,229 km (0.098 R)
• M11: 9,526,841 km (0.043 R)
• M12: 10,693,256 km (0.091 R)
• M13: 11,429,577 km (0.06 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 657.8

Radius: 13.8

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 3.8 AU - 4.08 AU

Year: 4973 Days

Day: 13.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 36,069,365 km

• M1: 171,589 km (0.108 R)
• M2: 643,869 km (0.029 R)
• M3: 1,120,638 km (0.079 R)
• M4: 1,571,526 km (0.107 R)
• M5: 2,004,163 km (0.046 R)
• M6: 3,235,353 km (0.118 R)
• M7: 3,838,233 km (0.117 R)
• M8: 5,636,698 km (0.112 R)
• M9: 6,450,660 km (0.109 R)
• M10: 7,307,258 km (0.079 R)
• M11: 9,047,081 km (0.089 R)
• M12: 10,293,530 km (0.115 R)
• M13: 11,417,160 km (0.042 R)
• M14: 13,228,341 km (0.088 R)
• M15: 14,283,605 km (0.114 R)
• M16: 15,055,231 km (0.087 R)
• M17: 16,561,831 km (0.085 R)
• M18: 20,765,531 km (0.104 R)
• M19: 23,300,766 km (0.082 R)
• M20: 25,392,892 km (0.099 R)
• M21: 26,525,647 km (0.068 R)
• M22: 27,355,167 km (0.045 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 331.3

Radius: 4.4

Gravity: 17.11 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 5.7 AU - 8.4 AU

Year: 11902 Days

Day: 15.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 36,069,365 km

• M1: 55,800 km (0.065 R)
• M2: 234,121 km (0.113 R)
• M3: 510,278 km (0.094 R)
• M4: 675,285 km (0.116 R)
• M5: 1,116,299 km (0.065 R)
• M6: 1,895,255 km (0.083 R)
• M7: 2,040,066 km (0.059 R)
• M8: 2,675,408 km (0.083 R)
• M9: 2,816,778 km (0.113 R)
• M10: 3,027,562 km (0.097 R)
• M11: 4,135,633 km (0.072 R)
• M12: 4,492,424 km (0.12 R)
• M13: 6,663,089 km (0.039 R)
• M14: 7,308,305 km (0.076 R)
• M15: 8,722,005 km (0.073 R)
• M16: 10,962,682 km (0.078 R)
• M17: 11,169,426 km (0.054 R)
• M18: 11,697,805 km (0.092 R)
• M19: 11,968,129 km (0.049 R)
• M20: 13,324,084 km (0.035 R)
• M21: 13,738,171 km (0.113 R)
• M22: 14,221,821 km (0.092 R)
• M23: 17,434,435 km (0.081 R)
• M24: 18,874,165 km (0.055 R)
• M25: 20,158,612 km (0.042 R)
• M26: 23,924,140 km (0.111 R)
• M27: 24,272,255 km (0.062 R)
• M28: 25,516,909 km (0.055 R)
• M29: 28,813,747 km (0.115 R)
• M30: 30,208,298 km (0.105 R)
• M31: 30,411,003 km (0.096 R)
• M32: 30,819,405 km (0.043 R)
• M33: 33,238,852 km (0.107 R)
• M34: 34,329,121 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 79.6

Radius: 5.6

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 9.65 AU - 9.71 AU

Year: 19149 Days

Day: 19.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 36,069,365 km

• M1: 69,713 km (0.112 R)
• M2: 249,679 km (0.104 R)
• M3: 859,889 km (0.108 R)
• M4: 1,472,193 km (0.087 R)
• M5: 1,805,796 km (0.113 R)
• M6: 3,952,226 km (0.071 R)
• M7: 5,160,678 km (0.046 R)
• M8: 6,528,152 km (0.103 R)
• M9: 6,949,270 km (0.118 R)
• M10: 8,732,626 km (0.111 R)
• M11: 9,595,507 km (0.103 R)
• M12: 10,185,969 km (0.103 R)
• M13: 10,704,326 km (0.055 R)
• M14: 10,994,247 km (0.109 R)
• M15: 16,376,928 km (0.053 R)
• M16: 18,363,587 km (0.105 R)
• M17: 18,640,044 km (0.079 R)
• M18: 20,877,879 km (0.095 R)
• M19: 22,649,417 km (0.053 R)
• M20: 25,619,832 km (0.082 R)
• M21: 26,576,810 km (0.12 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: 221 - 14,573 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit