🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.49 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 291

Radius: 11.4

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.94 AU - 1 AU

Year: 637 Days

Day: 11.4 Hours

Environment

Temp: -183 °C

Axial Tilt: 71.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 40,745,153 km

• M1: 141,819 km (0.102 R)
• M2: 528,080 km (0.111 R)
• M3: 889,808 km (0.094 R)
• M4: 1,275,621 km (0.106 R)
• M5: 1,827,787 km (0.076 R)
• M6: 2,216,741 km (0.057 R)
• M7: 2,863,902 km (0.081 R)
• M8: 3,255,399 km (0.095 R)
• M9: 3,707,484 km (0.106 R)
• M10: 4,187,693 km (0.116 R)
• M11: 4,621,826 km (0.038 R)
• M12: 4,978,617 km (0.058 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 61.3

Radius: 14.6

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 2.01 AU - 2.43 AU

Year: 2206 Days

Day: 8.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 40,745,153 km

• M1: 182,360 km (0.107 R)
• M2: 768,484 km (0.107 R)
• M3: 1,891,515 km (0.115 R)
• M4: 2,726,122 km (0.099 R)
• M5: 3,712,870 km (0.06 R)
• M6: 6,695,253 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 436.6

Radius: 12

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 2.21 AU - 2.49 AU

Year: 2402 Days

Day: 9.1 Hours

Environment

Temp: -213 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,745,153 km

• M1: 149,299 km (0.074 R)
• M2: 584,180 km (0.099 R)
• M3: 1,696,440 km (0.11 R)
• M4: 2,147,029 km (0.054 R)
• M5: 3,214,559 km (0.049 R)
• M6: 3,628,945 km (0.047 R)
• M7: 4,250,225 km (0.062 R)
• M8: 5,450,598 km (0.096 R)
• M9: 5,921,533 km (0.059 R)
• M10: 6,522,617 km (0.031 R)
• M11: 7,730,171 km (0.078 R)
• M12: 9,310,074 km (0.087 R)
• M13: 9,985,059 km (0.088 R)
• M14: 10,764,913 km (0.109 R)
• M15: 11,357,171 km (0.118 R)
• M16: 11,777,092 km (0.11 R)
• M17: 13,182,116 km (0.079 R)
• M18: 15,518,535 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 511.1

Radius: 13.4

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 2.99 AU - 3.53 AU

Year: 3925 Days

Day: 7.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 40,745,153 km

• M1: 166,652 km (0.113 R)
• M2: 680,072 km (0.096 R)
• M3: 1,108,670 km (0.108 R)
• M4: 1,669,961 km (0.111 R)
• M5: 2,192,058 km (0.09 R)
• M6: 2,973,258 km (0.116 R)
• M7: 3,729,924 km (0.098 R)
• M8: 4,429,443 km (0.08 R)
• M9: 6,433,756 km (0.067 R)
• M10: 7,033,194 km (0.072 R)
• M11: 8,206,042 km (0.101 R)
• M12: 8,624,766 km (0.117 R)
• M13: 9,505,449 km (0.093 R)
• M14: 10,244,462 km (0.091 R)
• M15: 11,189,921 km (0.071 R)
• M16: 11,618,818 km (0.079 R)
• M17: 12,925,256 km (0.104 R)
• M18: 13,349,964 km (0.057 R)
• M19: 15,775,095 km (0.092 R)
• M20: 16,923,409 km (0.078 R)
• M21: 20,447,935 km (0.105 R)
• M22: 21,351,057 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 856.6

Radius: 9.3

Gravity: 9.9 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 3.8 AU - 3.96 AU

Year: 5097 Days

Day: 14.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 40,745,153 km

• M1: 116,088 km (0.093 R)
• M2: 415,433 km (0.113 R)
• M3: 706,102 km (0.096 R)
• M4: 1,002,156 km (0.086 R)
• M5: 1,903,184 km (0.078 R)
• M6: 2,762,773 km (0.113 R)
• M7: 3,127,643 km (0.118 R)
• M8: 3,679,210 km (0.099 R)
• M9: 4,574,404 km (0.089 R)
• M10: 5,638,194 km (0.118 R)
• M11: 6,325,148 km (0.096 R)
• M12: 6,859,062 km (0.079 R)
• M13: 7,243,230 km (0.062 R)
• M14: 12,524,633 km (0.097 R)
• M15: 13,206,051 km (0.083 R)
• M16: 13,583,187 km (0.03 R)
• M17: 14,757,680 km (0.097 R)
• M18: 15,163,839 km (0.028 R)
• M19: 15,697,005 km (0.095 R)
• M20: 17,435,931 km (0.048 R)
• M21: 18,485,360 km (0.097 R)
• M22: 19,925,988 km (0.108 R)
• M23: 20,565,668 km (0.106 R)
• M24: 21,145,809 km (0.045 R)
• M25: 24,051,448 km (0.101 R)
• M26: 30,547,885 km (0.036 R)
• M27: 31,781,469 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 836.1

Radius: 10.7

Gravity: 7.3 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 3.48 AU - 5.04 AU

Year: 5863 Days

Day: 12.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 40,745,153 km

• M1: 163,660 km (0.07 R)
• M2: 639,830 km (0.074 R)
• M3: 1,108,071 km (0.087 R)
• M4: 1,614,011 km (0.101 R)
• M5: 2,286,603 km (0.096 R)
• M6: 3,304,916 km (0.098 R)
• M7: 3,774,354 km (0.117 R)
• M8: 4,792,517 km (0.078 R)
• M9: 6,547,300 km (0.103 R)
• M10: 7,001,180 km (0.115 R)
• M11: 8,571,659 km (0.111 R)
• M12: 10,647,180 km (0.09 R)
• M13: 14,041,406 km (0.096 R)
• M14: 18,165,071 km (0.027 R)
• M15: 18,507,052 km (0.06 R)
• M16: 19,274,489 km (0.066 R)
• M17: 20,798,293 km (0.027 R)
• M18: 23,514,093 km (0.118 R)
• M19: 24,249,067 km (0.078 R)
• M20: 26,545,693 km (0.089 R)
• M21: 27,521,520 km (0.103 R)
• M22: 27,973,007 km (0.114 R)
• M23: 28,337,726 km (0.12 R)
• M24: 29,263,438 km (0.107 R)
• M25: 29,639,228 km (0.101 R)
• M26: 33,782,939 km (0.112 R)
• M27: 35,458,136 km (0.111 R)

Asteroid Belt

Center: 4.68 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 5.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 345.5

Radius: 13

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 5 AU - 5.18 AU

Year: 7658 Days

Day: 14.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 40,745,153 km

• M1: 161,715 km (0.075 R)
• M2: 579,393 km (0.037 R)
• M3: 1,183,469 km (0.113 R)
• M4: 2,149,871 km (0.071 R)
• M5: 3,194,363 km (0.113 R)
• M6: 4,707,247 km (0.098 R)
• M7: 5,165,166 km (0.095 R)
• M8: 5,682,326 km (0.104 R)
• M9: 6,956,600 km (0.068 R)
• M10: 8,182,854 km (0.098 R)
• M11: 8,887,909 km (0.053 R)
• M12: 10,419,641 km (0.103 R)
• M13: 11,343,109 km (0.066 R)
• M14: 14,838,314 km (0.101 R)
• M15: 15,298,626 km (0.091 R)
• M16: 17,110,855 km (0.099 R)
• M17: 18,660,539 km (0.039 R)
• M18: 19,197,296 km (0.079 R)
• M19: 20,301,927 km (0.11 R)
• M20: 21,013,564 km (0.049 R)
• M21: 22,486,654 km (0.05 R)
• M22: 26,051,422 km (0.075 R)
• M23: 29,703,405 km (0.101 R)
• M24: 30,992,939 km (0.071 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 846.8

Radius: 10.8

Gravity: 7.26 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 4.59 AU - 6.31 AU

Year: 8484 Days

Day: 5.9 Hours

Environment

Temp: -217 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 40,745,153 km

• M1: 134,339 km (0.084 R)
• M2: 584,778 km (0.063 R)
• M3: 951,592 km (0.077 R)
• M4: 1,973,196 km (0.071 R)
• M5: 3,564,618 km (0.08 R)
• M6: 4,351,353 km (0.102 R)
• M7: 4,697,074 km (0.079 R)
• M8: 5,061,046 km (0.112 R)
• M9: 5,609,172 km (0.117 R)
• M10: 8,828,219 km (0.074 R)
• M11: 11,465,630 km (0.102 R)
• M12: 14,781,018 km (0.117 R)
• M13: 16,379,920 km (0.108 R)
• M14: 16,867,310 km (0.036 R)
• M15: 18,091,170 km (0.107 R)
• M16: 19,296,330 km (0.066 R)
• M17: 21,949,748 km (0.095 R)
• M18: 25,203,800 km (0.035 R)
• M19: 25,853,654 km (0.069 R)
• M20: 30,825,539 km (0.068 R)
• M21: 35,005,303 km (0.049 R)
• M22: 36,635,920 km (0.04 R)
• M23: 38,195,029 km (0.12 R)
• M24: 40,048,248 km (0.116 R)
• M25: 41,702,351 km (0.115 R)
• M26: 43,401,334 km (0.105 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 171.6

Radius: 4.5

Gravity: 8.47 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 7 AU - 9.4 AU

Year: 15659 Days

Day: 23.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 40,745,153 km

• M1: 55,950 km (0.102 R)
• M2: 204,500 km (0.101 R)
• M3: 348,413 km (0.103 R)
• M4: 618,438 km (0.107 R)
• M5: 1,007,841 km (0.055 R)
• M6: 1,452,745 km (0.086 R)
• M7: 1,683,574 km (0.09 R)
• M8: 3,179,553 km (0.116 R)
• M9: 3,359,220 km (0.094 R)
• M10: 3,593,341 km (0.08 R)
• M11: 4,173,481 km (0.106 R)
• M12: 4,389,202 km (0.112 R)
• M13: 4,813,760 km (0.057 R)
• M14: 5,910,163 km (0.118 R)
• M15: 7,473,012 km (0.047 R)
• M16: 9,847,429 km (0.12 R)
• M17: 10,181,781 km (0.11 R)
• M18: 10,425,176 km (0.119 R)
• M19: 10,622,646 km (0.111 R)
• M20: 11,967,979 km (0.109 R)
• M21: 14,374,261 km (0.061 R)
• M22: 17,084,825 km (0.103 R)
• M23: 17,359,337 km (0.049 R)
• M24: 18,922,934 km (0.116 R)
• M25: 30,516,470 km (0.104 R)
• M26: 31,022,410 km (0.095 R)
• M27: 33,744,044 km (0.065 R)
• M28: 39,896,705 km (0.1 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: 282 - 14,393 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit