🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.77

Radius: 1.26

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.47 AU - 0.59 AU

Year: 249 Days

Day: 40.7 Hours

Environment

Temp: -125 °C

Axial Tilt: 48.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 36.1

Radius: 9.4

Gravity: 0.41 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.55 AU - 0.83 AU

Year: 370 Days

Day: 13 Hours

Environment

Temp: -134 °C

Axial Tilt: 41.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 59,686,618 km

• M1: 116,986 km (0.095 R)
• M2: 427,850 km (0.109 R)
• M3: 789,278 km (0.116 R)
• M4: 1,100,592 km (0.098 R)
• M5: 1,542,055 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191.4

Radius: 13.6

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.81 AU - 1.03 AU

Year: 570 Days

Day: 12.6 Hours

Environment

Temp: -148 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 59,686,618 km

• M1: 169,345 km (0.075 R)
• M2: 636,240 km (0.055 R)
• M3: 1,078,002 km (0.074 R)
• M4: 1,606,083 km (0.048 R)
• M5: 2,155,107 km (0.12 R)
• M6: 2,625,143 km (0.065 R)
• M7: 3,472,017 km (0.053 R)
• M8: 4,063,228 km (0.101 R)
• M9: 4,639,928 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 939.4

Radius: 9.3

Gravity: 10.86 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.76 AU - 1.14 AU

Year: 598 Days

Day: 13.3 Hours

Environment

Temp: -164 °C

Axial Tilt: 48.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 59,686,618 km

• M1: 115,639 km (0.066 R)
• M2: 483,949 km (0.102 R)
• M3: 842,236 km (0.107 R)
• M4: 1,224,907 km (0.12 R)
• M5: 1,517,820 km (0.04 R)
• M6: 1,875,509 km (0.069 R)
• M7: 2,200,136 km (0.056 R)
• M8: 2,695,604 km (0.093 R)
• M9: 3,434,618 km (0.079 R)
• M10: 3,794,400 km (0.115 R)
• M11: 4,873,151 km (0.045 R)
• M12: 6,489,107 km (0.075 R)
• M13: 6,825,253 km (0.096 R)
• M14: 7,904,003 km (0.044 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 955.7

Radius: 13.1

Gravity: 5.57 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 1.23 AU - 1.79 AU

Year: 1198 Days

Day: 5.1 Hours

Environment

Temp: -184 °C

Axial Tilt: 42 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 59,686,618 km

• M1: 162,912 km (0.082 R)
• M2: 572,361 km (0.092 R)
• M3: 1,108,371 km (0.09 R)
• M4: 1,828,236 km (0.067 R)
• M5: 2,606,593 km (0.111 R)
• M6: 3,758,497 km (0.106 R)
• M7: 4,367,061 km (0.106 R)
• M8: 5,872,464 km (0.059 R)
• M9: 6,768,705 km (0.101 R)
• M10: 8,056,743 km (0.101 R)
• M11: 8,803,386 km (0.088 R)
• M12: 9,347,025 km (0.09 R)
• M13: 9,977,430 km (0.104 R)
• M14: 11,358,218 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 791.3

Radius: 11.8

Gravity: 5.68 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 2.15 AU - 2.21 AU

Year: 2078 Days

Day: 10.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 59,686,618 km

• M1: 146,756 km (0.082 R)
• M2: 526,734 km (0.04 R)
• M3: 1,025,942 km (0.115 R)
• M4: 1,709,754 km (0.11 R)
• M5: 2,400,447 km (0.046 R)
• M6: 2,856,571 km (0.106 R)
• M7: 3,353,535 km (0.047 R)
• M8: 3,777,496 km (0.102 R)
• M9: 4,564,231 km (0.108 R)
• M10: 5,041,747 km (0.111 R)
• M11: 5,820,853 km (0.111 R)
• M12: 6,252,593 km (0.1 R)
• M13: 6,624,044 km (0.118 R)
• M14: 7,038,580 km (0.066 R)
• M15: 10,008,696 km (0.115 R)
• M16: 10,780,172 km (0.115 R)
• M17: 13,333,808 km (0.106 R)
• M18: 15,388,385 km (0.038 R)
• M19: 16,117,974 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 993.7

Radius: 9.8

Gravity: 10.35 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 2.08 AU - 3.28 AU

Year: 2833 Days

Day: 8.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 59,686,618 km

• M1: 121,922 km (0.064 R)
• M2: 439,668 km (0.081 R)
• M3: 795,561 km (0.116 R)
• M4: 1,111,512 km (0.086 R)
• M5: 1,535,024 km (0.113 R)
• M6: 1,884,036 km (0.106 R)
• M7: 2,300,516 km (0.11 R)
• M8: 2,911,623 km (0.104 R)
• M9: 3,228,472 km (0.119 R)
• M10: 3,788,117 km (0.088 R)
• M11: 5,644,028 km (0.027 R)
• M12: 7,507,420 km (0.117 R)
• M13: 10,181,930 km (0.086 R)
• M14: 10,917,653 km (0.105 R)
• M15: 11,298,678 km (0.086 R)
• M16: 11,776,344 km (0.103 R)
• M17: 12,959,215 km (0.115 R)
• M18: 14,827,842 km (0.097 R)
• M19: 18,789,044 km (0.051 R)
• M20: 19,832,788 km (0.047 R)
• M21: 20,210,224 km (0.085 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 799.5

Radius: 12.3

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 5.36 AU - 6.12 AU

Year: 8879 Days

Day: 13.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 59,686,618 km

• M1: 153,039 km (0.11 R)
• M2: 725,699 km (0.113 R)
• M3: 1,407,716 km (0.09 R)
• M4: 1,853,518 km (0.113 R)
• M5: 3,171,924 km (0.094 R)
• M6: 3,847,657 km (0.047 R)
• M7: 4,559,145 km (0.119 R)
• M8: 7,884,406 km (0.087 R)
• M9: 9,361,236 km (0.09 R)
• M10: 10,804,856 km (0.034 R)
• M11: 11,498,092 km (0.118 R)
• M12: 12,738,857 km (0.093 R)
• M13: 13,271,426 km (0.093 R)
• M14: 13,942,522 km (0.112 R)
• M15: 14,700,235 km (0.073 R)
• M16: 15,551,895 km (0.117 R)
• M17: 16,297,940 km (0.113 R)
• M18: 17,353,652 km (0.094 R)
• M19: 18,679,987 km (0.038 R)
• M20: 20,471,721 km (0.119 R)
• M21: 23,326,347 km (0.06 R)
• M22: 25,124,364 km (0.094 R)
• M23: 27,206,916 km (0.074 R)
• M24: 31,498,131 km (0.113 R)
• M25: 32,037,282 km (0.076 R)
• M26: 32,473,060 km (0.082 R)
• M27: 33,356,436 km (0.066 R)
• M28: 43,889,921 km (0.094 R)
• M29: 45,242,585 km (0.088 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 218.2

Radius: 3.2

Gravity: 21.31 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 5.49 AU - 6.85 AU

Year: 9896 Days

Day: 21.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 59,686,618 km

• M1: 49,068 km (0.084 R)
• M2: 199,264 km (0.079 R)
• M3: 380,876 km (0.087 R)
• M4: 715,078 km (0.104 R)
• M5: 1,408,165 km (0.102 R)
• M6: 1,529,489 km (0.102 R)
• M7: 1,921,585 km (0.12 R)
• M8: 2,532,243 km (0.115 R)
• M9: 2,978,793 km (0.073 R)
• M10: 3,118,368 km (0.113 R)
• M11: 3,475,607 km (0.12 R)
• M12: 3,766,874 km (0.114 R)
• M13: 4,956,028 km (0.102 R)
• M14: 5,802,901 km (0.09 R)
• M15: 6,276,827 km (0.119 R)
• M16: 6,407,426 km (0.096 R)
• M17: 8,956,275 km (0.075 R)
• M18: 9,163,618 km (0.112 R)
• M19: 10,025,152 km (0.052 R)
• M20: 10,384,336 km (0.11 R)
• M21: 11,224,029 km (0.077 R)
• M22: 12,107,853 km (0.12 R)
• M23: 12,361,422 km (0.105 R)
• M24: 12,879,030 km (0.07 R)
• M25: 13,411,000 km (0.096 R)
• M26: 15,329,144 km (0.04 R)
• M27: 15,685,636 km (0.109 R)
• M28: 15,926,339 km (0.115 R)
• M29: 17,166,954 km (0.038 R)
• M30: 19,421,244 km (0.099 R)
• M31: 19,629,185 km (0.08 R)
• M32: 21,790,575 km (0.057 R)
• M33: 29,035,301 km (0.056 R)
• M34: 31,257,577 km (0.057 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 419.6

Radius: 3.8

Gravity: 29.06 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 8.12 AU - 10.1 AU

Year: 17754 Days

Day: 24.3 Hours

Environment

Temp: -236 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 59,686,618 km

• M1: 48,619 km (0.114 R)
• M2: 214,374 km (0.033 R)
• M3: 599,588 km (0.117 R)
• M4: 744,848 km (0.028 R)
• M5: 871,707 km (0.111 R)
• M6: 1,024,596 km (0.104 R)
• M7: 2,350,183 km (0.098 R)
• M8: 2,829,793 km (0.066 R)
• M9: 2,995,249 km (0.117 R)
• M10: 3,477,253 km (0.075 R)
• M11: 3,750,867 km (0.082 R)
• M12: 4,309,915 km (0.115 R)
• M13: 10,298,018 km (0.1 R)
• M14: 10,976,145 km (0.085 R)
• M15: 11,987,128 km (0.085 R)
• M16: 14,055,618 km (0.118 R)
• M17: 15,608,144 km (0.054 R)
• M18: 20,241,639 km (0.066 R)
• M19: 22,493,536 km (0.07 R)
• M20: 27,808,449 km (0.069 R)
• M21: 28,349,245 km (0.1 R)
• M22: 38,646,665 km (0.068 R)
• M23: 39,864,093 km (0.049 R)
• M24: 40,138,156 km (0.084 R)
• M25: 48,018,523 km (0.089 R)
• M26: 52,483,271 km (0.057 R)
• M27: 52,812,387 km (0.058 R)
• M28: 53,308,603 km (0.111 R)
• M29: 53,474,656 km (0.064 R)
• M30: 56,351,424 km (0.115 R)
• M31: 56,696,396 km (0.06 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 191 - 10,895 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit