🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.04

Radius: 1.02

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.53 AU - 0.67 AU

Year: 305 Days

Day: 33.4 Hours

Environment

Temp: -118 °C

Axial Tilt: 28.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 508.5

Radius: 10.5

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.6 AU - 0.98 AU

Year: 461 Days

Day: 7 Hours

Environment

Temp: -151 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,432,463 km

• M1: 130,749 km (0.113 R)
• M2: 476,469 km (0.061 R)
• M3: 807,380 km (0.096 R)
• M4: 1,348,625 km (0.083 R)
• M5: 1,790,836 km (0.072 R)
• M6: 2,319,814 km (0.07 R)
• M7: 3,255,998 km (0.087 R)
• M8: 4,048,268 km (0.116 R)
• M9: 4,919,227 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 334.9

Radius: 11.2

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.94 AU - 1.06 AU

Year: 656 Days

Day: 5 Hours

Environment

Temp: -153 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 76,432,463 km

• M1: 139,276 km (0.066 R)
• M2: 526,285 km (0.075 R)
• M3: 921,523 km (0.101 R)
• M4: 1,292,376 km (0.049 R)
• M5: 1,683,574 km (0.111 R)
• M6: 2,035,129 km (0.088 R)
• M7: 2,426,777 km (0.083 R)
• M8: 3,031,900 km (0.092 R)
• M9: 3,864,861 km (0.093 R)
• M10: 4,428,396 km (0.062 R)
• M11: 4,828,870 km (0.081 R)
• M12: 5,205,108 km (0.101 R)
• M13: 6,034,629 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 52.7

Radius: 11.9

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 3.03 AU - 3.07 AU

Year: 3494 Days

Day: 9.1 Hours

Environment

Temp: -194 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,432,463 km

• M1: 157,975 km (0.12 R)
• M2: 640,578 km (0.044 R)
• M3: 1,038,060 km (0.098 R)
• M4: 1,408,763 km (0.109 R)
• M5: 4,105,115 km (0.114 R)
• M6: 4,557,350 km (0.093 R)
• M7: 5,483,510 km (0.061 R)
• M8: 5,929,012 km (0.075 R)
• M9: 8,138,274 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 556.6

Radius: 8.7

Gravity: 7.35 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 3.13 AU - 3.53 AU

Year: 3986 Days

Day: 7.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 76,432,463 km

• M1: 108,309 km (0.091 R)
• M2: 503,397 km (0.083 R)
• M3: 1,261,858 km (0.072 R)
• M4: 2,120,999 km (0.093 R)
• M5: 2,660,598 km (0.114 R)
• M6: 3,086,952 km (0.073 R)
• M7: 4,814,059 km (0.115 R)
• M8: 5,086,926 km (0.066 R)
• M9: 6,254,687 km (0.118 R)
• M10: 8,135,282 km (0.102 R)
• M11: 10,695,799 km (0.099 R)
• M12: 11,378,713 km (0.084 R)
• M13: 13,999,070 km (0.114 R)
• M14: 14,972,503 km (0.101 R)
• M15: 15,342,458 km (0.059 R)
• M16: 18,706,167 km (0.078 R)
• M17: 20,077,081 km (0.103 R)
• M18: 20,983,645 km (0.118 R)
• M19: 22,463,018 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 281.8

Radius: 9.6

Gravity: 3.06 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 3.17 AU - 4.67 AU

Year: 5091 Days

Day: 14.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 76,432,463 km

• M1: 119,678 km (0.113 R)
• M2: 637,287 km (0.098 R)
• M3: 1,747,154 km (0.103 R)
• M4: 2,098,559 km (0.098 R)
• M5: 3,225,928 km (0.119 R)
• M6: 4,047,819 km (0.116 R)
• M7: 5,251,633 km (0.098 R)
• M8: 5,908,966 km (0.075 R)
• M9: 6,798,924 km (0.032 R)
• M10: 8,915,435 km (0.036 R)
• M11: 10,849,586 km (0.11 R)
• M12: 12,723,748 km (0.08 R)
• M13: 14,753,641 km (0.084 R)
• M14: 15,111,779 km (0.108 R)
• M15: 16,713,074 km (0.101 R)
• M16: 18,839,907 km (0.102 R)
• M17: 20,565,070 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178

Radius: 11.2

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 3.67 AU - 5.11 AU

Year: 6034 Days

Day: 11.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 76,432,463 km

• M1: 140,323 km (0.083 R)
• M2: 811,120 km (0.062 R)
• M3: 1,194,539 km (0.101 R)
• M4: 2,676,904 km (0.031 R)
• M5: 3,297,586 km (0.112 R)
• M6: 3,710,775 km (0.081 R)
• M7: 4,308,269 km (0.104 R)
• M8: 6,521,420 km (0.099 R)
• M9: 7,206,877 km (0.09 R)
• M10: 7,647,144 km (0.094 R)
• M11: 8,138,723 km (0.095 R)
• M12: 9,221,811 km (0.108 R)
• M13: 9,665,967 km (0.061 R)
• M14: 10,241,321 km (0.108 R)
• M15: 10,920,794 km (0.1 R)
• M16: 12,192,974 km (0.104 R)
• M17: 12,728,535 km (0.096 R)
• M18: 14,578,612 km (0.086 R)
• M19: 16,118,871 km (0.115 R)
• M20: 17,992,734 km (0.114 R)
• M21: 18,922,934 km (0.077 R)
• M22: 20,502,687 km (0.086 R)
• M23: 20,879,375 km (0.069 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 133

Radius: 11.4

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 4.28 AU - 4.7 AU

Year: 6241 Days

Day: 9.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 42 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 76,432,463 km

• M1: 148,102 km (0.045 R)
• M2: 1,065,286 km (0.119 R)
• M3: 1,459,178 km (0.048 R)
• M4: 1,868,178 km (0.099 R)
• M5: 3,004,823 km (0.036 R)
• M6: 4,939,123 km (0.095 R)
• M7: 5,443,268 km (0.113 R)
• M8: 6,387,679 km (0.063 R)
• M9: 7,165,140 km (0.115 R)
• M10: 9,620,789 km (0.118 R)
• M11: 10,409,319 km (0.091 R)
• M12: 12,157,819 km (0.117 R)
• M13: 15,714,060 km (0.104 R)
• M14: 16,385,006 km (0.066 R)
• M15: 18,118,247 km (0.079 R)
• M16: 18,913,659 km (0.115 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 438.2

Radius: 11.3

Gravity: 3.43 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 4.76 AU - 5.6 AU

Year: 7734 Days

Day: 9.4 Hours

Environment

Temp: -213 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 76,432,463 km

• M1: 142,866 km (0.1 R)
• M2: 656,435 km (0.091 R)
• M3: 1,172,997 km (0.107 R)
• M4: 1,652,159 km (0.062 R)
• M5: 2,708,320 km (0.1 R)
• M6: 3,256,895 km (0.081 R)
• M7: 3,973,469 km (0.067 R)
• M8: 5,537,515 km (0.073 R)
• M9: 6,097,609 km (0.103 R)
• M10: 6,558,969 km (0.1 R)
• M11: 7,930,183 km (0.102 R)
• M12: 8,848,116 km (0.12 R)
• M13: 9,268,635 km (0.113 R)
• M14: 9,879,892 km (0.074 R)
• M15: 11,329,196 km (0.112 R)
• M16: 13,238,963 km (0.119 R)
• M17: 15,475,002 km (0.114 R)
• M18: 18,018,914 km (0.093 R)
• M19: 19,390,128 km (0.066 R)
• M20: 20,317,934 km (0.039 R)
• M21: 22,031,578 km (0.088 R)
• M22: 25,322,282 km (0.078 R)
• M23: 27,659,898 km (0.053 R)
• M24: 28,198,301 km (0.107 R)
• M25: 33,973,527 km (0.081 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 490.2

Radius: 3.9

Gravity: 32.23 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 10.04 AU - 11.88 AU

Year: 23803 Days

Day: 18.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (45)

Outer Limit: 76,432,463 km

• M1: 81,980 km (0.119 R)
• M2: 457,919 km (0.036 R)
• M3: 668,852 km (0.097 R)
• M4: 818,300 km (0.113 R)
• M5: 1,256,323 km (0.099 R)
• M6: 1,637,049 km (0.102 R)
• M7: 2,894,569 km (0.107 R)
• M8: 3,465,883 km (0.047 R)
• M9: 3,886,253 km (0.052 R)
• M10: 4,306,324 km (0.09 R)
• M11: 5,198,227 km (0.114 R)
• M12: 7,196,256 km (0.078 R)
• M13: 8,029,666 km (0.111 R)
• M14: 8,234,764 km (0.116 R)
• M15: 8,548,920 km (0.112 R)
• M16: 8,708,840 km (0.107 R)
• M17: 9,944,369 km (0.064 R)
• M18: 10,240,573 km (0.078 R)
• M19: 10,481,874 km (0.118 R)
• M20: 12,413,482 km (0.119 R)
• M21: 13,106,569 km (0.106 R)
• M22: 13,534,718 km (0.071 R)
• M23: 16,219,700 km (0.056 R)
• M24: 16,383,061 km (0.062 R)
• M25: 17,557,255 km (0.119 R)
• M26: 18,164,921 km (0.083 R)
• M27: 20,260,339 km (0.116 R)
• M28: 21,611,656 km (0.082 R)
• M29: 22,108,621 km (0.118 R)
• M30: 24,492,463 km (0.074 R)
• M31: 25,580,189 km (0.076 R)
• M32: 30,377,942 km (0.113 R)
• M33: 33,052,602 km (0.091 R)
• M34: 33,579,187 km (0.078 R)
• M35: 37,139,616 km (0.087 R)
• M36: 39,303,998 km (0.059 R)
• M37: 42,628,063 km (0.078 R)
• M38: 45,808,364 km (0.105 R)
• M39: 51,044,589 km (0.061 R)
• M40: 53,534,645 km (0.09 R)
• M41: 56,853,474 km (0.064 R)
• M42: 64,101,192 km (0.063 R)
• M43: 69,331,732 km (0.05 R)
• M44: 72,160,777 km (0.118 R)
• M45: 72,381,583 km (0.088 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 325 - 11,762 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit