🌌 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: 2.1

Radius: 1.35

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.51 AU - 0.55 AU

Year: 249 Days

Day: 26.3 Hours

Environment

Temp: -121 °C

Axial Tilt: 11.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 615.2

Radius: 11.4

Gravity: 4.73 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.75 AU - 1.05 AU

Year: 551 Days

Day: 11.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 47,458,867 km

• M1: 142,866 km (0.108 R)
• M2: 670,348 km (0.086 R)
• M3: 1,112,410 km (0.089 R)
• M4: 1,488,499 km (0.086 R)
• M5: 1,950,756 km (0.108 R)
• M6: 2,518,480 km (0.032 R)
• M7: 3,054,340 km (0.059 R)
• M8: 3,511,511 km (0.094 R)
• M9: 4,083,872 km (0.103 R)
• M10: 4,504,392 km (0.056 R)
• M11: 4,874,198 km (0.064 R)
• M12: 5,763,557 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 775.5

Radius: 8.6

Gravity: 10.49 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.83 AU - 1.23 AU

Year: 675 Days

Day: 10.6 Hours

Environment

Temp: -156 °C

Axial Tilt: 82.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 47,458,867 km

• M1: 107,262 km (0.036 R)
• M2: 395,387 km (0.064 R)
• M3: 699,669 km (0.103 R)
• M4: 1,010,982 km (0.083 R)
• M5: 1,542,504 km (0.032 R)
• M6: 2,131,620 km (0.094 R)
• M7: 2,511,000 km (0.106 R)
• M8: 2,780,725 km (0.046 R)
• M9: 3,158,161 km (0.093 R)
• M10: 4,214,322 km (0.08 R)
• M11: 4,697,074 km (0.049 R)
• M12: 4,969,342 km (0.076 R)
• M13: 5,434,442 km (0.08 R)
• M14: 6,105,987 km (0.073 R)
• M15: 6,853,378 km (0.114 R)
• M16: 7,590,746 km (0.076 R)
• M17: 8,086,962 km (0.035 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 455.8

Radius: 13.1

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.85 AU - 1.37 AU

Year: 755 Days

Day: 5.2 Hours

Environment

Temp: -172 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 47,458,867 km

• M1: 162,912 km (0.1 R)
• M2: 586,723 km (0.062 R)
• M3: 1,060,649 km (0.113 R)
• M4: 1,517,222 km (0.09 R)
• M5: 2,008,950 km (0.109 R)
• M6: 2,649,827 km (0.056 R)
• M7: 3,285,169 km (0.119 R)
• M8: 3,727,530 km (0.109 R)
• M9: 4,543,886 km (0.115 R)
• M10: 4,995,073 km (0.088 R)
• M11: 5,876,055 km (0.072 R)
• M12: 6,492,398 km (0.11 R)
• M13: 7,432,022 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 703.5

Radius: 12.3

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 2.7 AU - 3.02 AU

Year: 3123 Days

Day: 10.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 47,458,867 km

• M1: 153,039 km (0.049 R)
• M2: 926,011 km (0.044 R)
• M3: 1,404,724 km (0.052 R)
• M4: 2,049,042 km (0.096 R)
• M5: 2,492,450 km (0.082 R)
• M6: 3,137,666 km (0.109 R)
• M7: 3,576,436 km (0.109 R)
• M8: 5,447,307 km (0.113 R)
• M9: 5,840,301 km (0.071 R)
• M10: 6,451,109 km (0.106 R)
• M11: 7,321,170 km (0.114 R)
• M12: 10,364,140 km (0.051 R)
• M13: 11,771,707 km (0.109 R)
• M14: 13,586,479 km (0.118 R)
• M15: 14,861,950 km (0.081 R)
• M16: 15,270,053 km (0.07 R)
• M17: 17,144,215 km (0.109 R)
• M18: 18,339,801 km (0.057 R)
• M19: 19,167,227 km (0.056 R)
• M20: 19,651,176 km (0.064 R)
• M21: 20,205,287 km (0.104 R)
• M22: 20,896,728 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 710.8

Radius: 14.7

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 2.21 AU - 3.53 AU

Year: 3139 Days

Day: 14.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 47,458,867 km

• M1: 182,809 km (0.119 R)
• M2: 713,881 km (0.066 R)
• M3: 1,393,205 km (0.076 R)
• M4: 1,865,485 km (0.043 R)
• M5: 2,505,764 km (0.062 R)
• M6: 3,290,854 km (0.11 R)
• M7: 3,881,766 km (0.108 R)
• M8: 5,558,758 km (0.065 R)
• M9: 6,148,622 km (0.072 R)
• M10: 7,743,335 km (0.118 R)
• M11: 8,690,290 km (0.111 R)
• M12: 9,155,539 km (0.06 R)
• M13: 11,780,683 km (0.109 R)
• M14: 13,932,947 km (0.105 R)
• M15: 14,873,469 km (0.116 R)
• M16: 18,123,483 km (0.081 R)
• M17: 18,589,929 km (0.103 R)
• M18: 19,607,793 km (0.063 R)
• M19: 20,852,597 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 306.8

Radius: 10.3

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 2.98 AU - 3.16 AU

Year: 3473 Days

Day: 13.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 47,458,867 km

• M1: 129,402 km (0.086 R)
• M2: 618,737 km (0.102 R)
• M3: 1,228,498 km (0.087 R)
• M4: 1,650,364 km (0.116 R)
• M5: 2,776,536 km (0.117 R)
• M6: 3,220,693 km (0.071 R)
• M7: 4,112,445 km (0.084 R)
• M8: 5,760,565 km (0.034 R)
• M9: 8,535,755 km (0.092 R)
• M10: 9,444,263 km (0.11 R)
• M11: 11,692,420 km (0.118 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452.5

Radius: 8.5

Gravity: 6.26 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 4.11 AU - 4.55 AU

Year: 5818 Days

Day: 6.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 47,458,867 km

• M1: 105,766 km (0.104 R)
• M2: 370,404 km (0.092 R)
• M3: 1,046,587 km (0.03 R)
• M4: 1,721,423 km (0.106 R)
• M5: 2,132,817 km (0.108 R)
• M6: 3,231,912 km (0.052 R)
• M7: 3,642,708 km (0.087 R)
• M8: 4,276,255 km (0.087 R)
• M9: 5,819,956 km (0.082 R)
• M10: 6,242,420 km (0.1 R)
• M11: 7,597,926 km (0.113 R)
• M12: 8,553,258 km (0.061 R)
• M13: 10,392,863 km (0.056 R)
• M14: 11,060,668 km (0.116 R)
• M15: 11,428,230 km (0.11 R)
• M16: 12,630,099 km (0.12 R)
• M17: 12,930,791 km (0.109 R)
• M18: 13,755,674 km (0.102 R)
• M19: 20,197,657 km (0.12 R)
• M20: 20,886,556 km (0.052 R)
• M21: 22,603,490 km (0.067 R)
• M22: 28,060,970 km (0.081 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 599.9

Radius: 7

Gravity: 12.24 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 6.23 AU - 6.63 AU

Year: 10528 Days

Day: 19.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 47,458,867 km

• M1: 87,216 km (0.101 R)
• M2: 507,286 km (0.119 R)
• M3: 854,204 km (0.079 R)
• M4: 1,230,442 km (0.11 R)
• M5: 1,698,235 km (0.065 R)
• M6: 2,334,325 km (0.119 R)
• M7: 2,727,768 km (0.084 R)
• M8: 3,522,132 km (0.059 R)
• M9: 5,325,983 km (0.085 R)
• M10: 7,341,067 km (0.119 R)
• M11: 7,671,379 km (0.106 R)
• M12: 13,892,855 km (0.119 R)
• M13: 16,686,296 km (0.045 R)
• M14: 19,205,524 km (0.101 R)
• M15: 19,517,735 km (0.096 R)
• M16: 20,555,495 km (0.111 R)
• M17: 21,967,550 km (0.115 R)
• M18: 25,169,243 km (0.065 R)
• M19: 25,637,185 km (0.114 R)
• M20: 27,075,868 km (0.105 R)
• M21: 29,904,016 km (0.118 R)
• M22: 30,853,214 km (0.044 R)
• M23: 31,497,233 km (0.085 R)
• M24: 39,057,760 km (0.088 R)
• M25: 41,217,654 km (0.07 R)
• M26: 42,656,935 km (0.079 R)
• M27: 44,946,531 km (0.095 R)
• M28: 45,635,279 km (0.109 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 231 - 17,439 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit