🌌 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: 1.24

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.44 AU - 0.62 AU

Year: 249 Days

Day: 39.7 Hours

Environment

Temp: -112 °C

Axial Tilt: 19.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 65.3

Radius: 13.7

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.65 AU - 0.99 AU

Year: 479 Days

Day: 13.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 50,737,408 km

• M1: 170,841 km (0.103 R)
• M2: 714,779 km (0.083 R)
• M3: 1,647,970 km (0.043 R)
• M4: 2,458,043 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 306.9

Radius: 11.8

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.85 AU - 1.09 AU

Year: 617 Days

Day: 6.8 Hours

Environment

Temp: -156 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 50,737,408 km

• M1: 146,756 km (0.081 R)
• M2: 661,971 km (0.104 R)
• M3: 1,059,901 km (0.108 R)
• M4: 1,444,517 km (0.032 R)
• M5: 2,317,121 km (0.118 R)
• M6: 3,003,327 km (0.096 R)
• M7: 4,133,240 km (0.066 R)
• M8: 5,254,476 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 643.1

Radius: 11.7

Gravity: 4.7 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.86 AU - 1.18 AU

Year: 665 Days

Day: 8.6 Hours

Environment

Temp: -163 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 50,737,408 km

• M1: 145,559 km (0.078 R)
• M2: 513,121 km (0.068 R)
• M3: 915,389 km (0.07 R)
• M4: 1,530,835 km (0.048 R)
• M5: 1,999,974 km (0.102 R)
• M6: 2,661,346 km (0.115 R)
• M7: 3,816,242 km (0.113 R)
• M8: 4,313,505 km (0.064 R)
• M9: 4,690,342 km (0.11 R)
• M10: 5,072,116 km (0.039 R)
• M11: 5,785,997 km (0.039 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 878.2

Radius: 8

Gravity: 13.72 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.3 AU - 1.56 AU

Year: 1104 Days

Day: 14.3 Hours

Environment

Temp: -185 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 50,737,408 km

• M1: 99,782 km (0.088 R)
• M2: 410,796 km (0.1 R)
• M3: 672,742 km (0.067 R)
• M4: 961,316 km (0.058 R)
• M5: 2,153,312 km (0.084 R)
• M6: 3,156,964 km (0.111 R)
• M7: 4,003,837 km (0.113 R)
• M8: 4,353,148 km (0.067 R)
• M9: 5,013,773 km (0.117 R)
• M10: 5,610,369 km (0.071 R)
• M11: 6,368,980 km (0.092 R)
• M12: 8,006,927 km (0.102 R)
• M13: 8,337,538 km (0.092 R)
• M14: 9,293,917 km (0.105 R)
• M15: 10,161,136 km (0.064 R)
• M16: 11,081,163 km (0.077 R)
• M17: 11,492,108 km (0.078 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 495.7

Radius: 13.6

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 2.29 AU - 3.65 AU

Year: 3305 Days

Day: 9.7 Hours

Environment

Temp: -196 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 50,737,408 km

• M1: 169,345 km (0.068 R)
• M2: 698,173 km (0.065 R)
• M3: 1,370,017 km (0.102 R)
• M4: 1,883,437 km (0.081 R)
• M5: 2,369,481 km (0.115 R)
• M6: 3,399,462 km (0.077 R)
• M7: 4,891,551 km (0.061 R)
• M8: 5,669,011 km (0.082 R)
• M9: 7,563,968 km (0.073 R)
• M10: 9,555,714 km (0.065 R)
• M11: 10,227,707 km (0.099 R)
• M12: 13,010,228 km (0.109 R)
• M13: 13,883,281 km (0.089 R)
• M14: 14,795,229 km (0.083 R)
• M15: 15,900,458 km (0.062 R)
• M16: 16,368,251 km (0.119 R)
• M17: 18,331,873 km (0.069 R)
• M18: 19,429,472 km (0.069 R)

Asteroid Belt

Center: 3.59 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 563.5

Radius: 8.6

Gravity: 7.62 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 4.16 AU - 4.26 AU

Year: 5577 Days

Day: 9.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 50,737,408 km

• M1: 107,262 km (0.044 R)
• M2: 495,468 km (0.12 R)
• M3: 950,545 km (0.087 R)
• M4: 1,452,147 km (0.114 R)
• M5: 1,905,727 km (0.115 R)
• M6: 2,305,902 km (0.062 R)
• M7: 2,963,384 km (0.081 R)
• M8: 3,784,976 km (0.114 R)
• M9: 6,240,475 km (0.119 R)
• M10: 6,559,418 km (0.088 R)
• M11: 7,264,473 km (0.082 R)
• M12: 7,982,094 km (0.093 R)
• M13: 10,068,984 km (0.1 R)
• M14: 14,222,718 km (0.082 R)
• M15: 14,664,331 km (0.092 R)
• M16: 17,446,253 km (0.059 R)
• M17: 18,599,054 km (0.12 R)
• M18: 22,435,492 km (0.056 R)
• M19: 26,106,624 km (0.071 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 999.2

Radius: 14.4

Gravity: 4.82 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 4.12 AU - 6.28 AU

Year: 7656 Days

Day: 8.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 50,737,408 km

• M1: 179,218 km (0.076 R)
• M2: 674,836 km (0.047 R)
• M3: 1,217,128 km (0.094 R)
• M4: 1,691,952 km (0.033 R)
• M5: 2,189,365 km (0.113 R)
• M6: 3,211,866 km (0.104 R)
• M7: 4,065,621 km (0.1 R)
• M8: 4,618,834 km (0.053 R)
• M9: 5,317,008 km (0.069 R)
• M10: 6,774,091 km (0.1 R)
• M11: 8,180,012 km (0.111 R)
• M12: 11,295,836 km (0.074 R)
• M13: 12,913,438 km (0.098 R)
• M14: 14,744,665 km (0.078 R)
• M15: 15,656,016 km (0.085 R)
• M16: 18,616,857 km (0.083 R)
• M17: 19,296,929 km (0.106 R)
• M18: 20,229,372 km (0.095 R)
• M19: 20,706,739 km (0.052 R)
• M20: 25,165,055 km (0.098 R)
• M21: 28,107,346 km (0.1 R)
• M22: 36,983,436 km (0.11 R)
• M23: 38,787,287 km (0.117 R)
• M24: 39,278,118 km (0.099 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 656.7

Radius: 5

Gravity: 26.27 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 5.12 AU - 8.22 AU

Year: 11123 Days

Day: 23.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 50,737,408 km

• M1: 63,130 km (0.052 R)
• M2: 311,164 km (0.114 R)
• M3: 1,127,669 km (0.106 R)
• M4: 1,899,893 km (0.047 R)
• M5: 2,197,892 km (0.051 R)
• M6: 3,952,226 km (0.116 R)
• M7: 4,291,215 km (0.105 R)
• M8: 4,467,740 km (0.081 R)
• M9: 4,710,837 km (0.093 R)
• M10: 5,357,100 km (0.082 R)
• M11: 6,208,461 km (0.044 R)
• M12: 6,549,844 km (0.112 R)
• M13: 8,310,611 km (0.114 R)
• M14: 8,678,621 km (0.084 R)
• M15: 10,103,691 km (0.08 R)
• M16: 13,534,119 km (0.066 R)
• M17: 17,818,902 km (0.067 R)
• M18: 18,046,590 km (0.108 R)
• M19: 19,214,051 km (0.092 R)
• M20: 19,533,592 km (0.03 R)
• M21: 20,348,302 km (0.065 R)
• M22: 20,513,907 km (0.103 R)
• M23: 24,669,437 km (0.045 R)
• M24: 26,007,889 km (0.113 R)
• M25: 26,399,087 km (0.113 R)
• M26: 26,794,026 km (0.109 R)
• M27: 34,950,251 km (0.04 R)
• M28: 35,907,229 km (0.117 R)
• M29: 37,004,380 km (0.101 R)
• M30: 38,375,594 km (0.091 R)
• M31: 41,218,851 km (0.101 R)
• M32: 42,827,477 km (0.037 R)
• M33: 44,060,911 km (0.093 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 419 - 14,412 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit