🌌 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: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.77

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.58 AU - 0.6 AU

Year: 288 Days

Day: 26.8 Hours

Environment

Temp: -121 °C

Axial Tilt: 38.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 977.7

Radius: 12.2

Gravity: 6.57 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.83 AU - 1.05 AU

Year: 579 Days

Day: 13.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 82,601,694 km

• M1: 151,842 km (0.088 R)
• M2: 556,654 km (0.064 R)
• M3: 990,936 km (0.116 R)
• M4: 1,597,256 km (0.118 R)
• M5: 2,005,210 km (0.071 R)
• M6: 2,711,611 km (0.117 R)
• M7: 3,365,055 km (0.054 R)
• M8: 3,958,360 km (0.096 R)
• M9: 4,507,982 km (0.116 R)
• M10: 5,038,755 km (0.107 R)
• M11: 5,666,917 km (0.101 R)
• M12: 6,266,356 km (0.116 R)
• M13: 7,255,497 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 445.6

Radius: 11.8

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 1.75 AU - 1.75 AU

Year: 1472 Days

Day: 8.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 82,601,694 km

• M1: 146,756 km (0.066 R)
• M2: 588,219 km (0.055 R)
• M3: 1,154,148 km (0.115 R)
• M4: 1,887,476 km (0.068 R)
• M5: 2,297,375 km (0.088 R)
• M6: 2,741,531 km (0.11 R)
• M7: 3,493,409 km (0.101 R)
• M8: 4,203,700 km (0.072 R)
• M9: 4,630,503 km (0.116 R)
• M10: 5,046,983 km (0.115 R)
• M11: 5,488,596 km (0.116 R)
• M12: 6,021,613 km (0.12 R)
• M13: 7,648,490 km (0.042 R)
• M14: 8,314,799 km (0.059 R)
• M15: 9,916,992 km (0.078 R)
• M16: 10,355,763 km (0.097 R)
• M17: 11,578,277 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 318.7

Radius: 12.4

Gravity: 2.07 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 4.77 AU - 5.67 AU

Year: 7583 Days

Day: 14.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 82,601,694 km

• M1: 154,983 km (0.112 R)
• M2: 617,241 km (0.083 R)
• M3: 1,123,929 km (0.081 R)
• M4: 1,660,836 km (0.077 R)
• M5: 2,165,579 km (0.073 R)
• M6: 2,718,792 km (0.103 R)
• M7: 3,406,344 km (0.103 R)
• M8: 3,881,616 km (0.103 R)
• M9: 5,211,541 km (0.085 R)
• M10: 5,696,986 km (0.086 R)
• M11: 6,275,182 km (0.088 R)
• M12: 6,792,192 km (0.093 R)
• M13: 7,478,398 km (0.075 R)
• M14: 7,948,883 km (0.062 R)
• M15: 9,029,578 km (0.111 R)
• M16: 9,563,642 km (0.061 R)
• M17: 12,109,200 km (0.105 R)
• M18: 12,964,002 km (0.078 R)
• M19: 15,479,340 km (0.063 R)
• M20: 16,185,592 km (0.081 R)
• M21: 17,599,292 km (0.1 R)
• M22: 23,008,452 km (0.055 R)
• M23: 25,354,745 km (0.095 R)
• M24: 27,004,959 km (0.11 R)
• M25: 27,599,162 km (0.036 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 440.7

Radius: 3.7

Gravity: 32.19 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 7.39 AU - 8.29 AU

Year: 13957 Days

Day: 20.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 82,601,694 km

• M1: 47,722 km (0.1 R)
• M2: 203,453 km (0.102 R)
• M3: 742,155 km (0.113 R)
• M4: 1,440,179 km (0.094 R)
• M5: 2,004,611 km (0.096 R)
• M6: 2,857,020 km (0.073 R)
• M7: 4,719,813 km (0.036 R)
• M8: 5,685,168 km (0.101 R)
• M9: 6,539,073 km (0.095 R)
• M10: 7,432,621 km (0.048 R)
• M11: 7,689,630 km (0.104 R)
• M12: 8,131,392 km (0.102 R)
• M13: 9,810,928 km (0.116 R)
• M14: 11,881,661 km (0.104 R)
• M15: 13,142,323 km (0.082 R)
• M16: 16,209,827 km (0.032 R)
• M17: 17,605,126 km (0.032 R)
• M18: 24,267,318 km (0.09 R)
• M19: 32,318,675 km (0.098 R)
• M20: 38,317,999 km (0.112 R)
• M21: 40,647,387 km (0.104 R)
• M22: 41,044,569 km (0.079 R)
• M23: 51,370,862 km (0.087 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 306.7

Radius: 7.6

Gravity: 5.31 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 7.12 AU - 9.42 AU

Year: 15121 Days

Day: 24.3 Hours

Environment

Temp: -235 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 82,601,694 km

• M1: 95,892 km (0.073 R)
• M2: 348,563 km (0.08 R)
• M3: 744,549 km (0.097 R)
• M4: 1,164,320 km (0.1 R)
• M5: 1,615,956 km (0.11 R)
• M6: 2,306,799 km (0.09 R)
• M7: 2,637,111 km (0.101 R)
• M8: 2,954,558 km (0.073 R)
• M9: 3,345,158 km (0.069 R)
• M10: 4,008,774 km (0.112 R)
• M11: 4,606,418 km (0.106 R)
• M12: 6,085,342 km (0.107 R)
• M13: 7,686,638 km (0.102 R)
• M14: 8,929,946 km (0.073 R)
• M15: 10,984,672 km (0.114 R)
• M16: 14,791,639 km (0.114 R)
• M17: 17,061,338 km (0.069 R)
• M18: 18,316,614 km (0.112 R)
• M19: 24,412,278 km (0.117 R)
• M20: 26,003,850 km (0.1 R)
• M21: 27,168,170 km (0.1 R)
• M22: 27,763,121 km (0.071 R)
• M23: 29,704,752 km (0.12 R)
• M24: 33,742,249 km (0.112 R)
• M25: 35,360,748 km (0.083 R)
• M26: 40,783,820 km (0.065 R)
• M27: 46,032,312 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 664.7

Radius: 3.5

Gravity: 54.26 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 10.26 AU - 11.2 AU

Year: 22348 Days

Day: 17.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 82,601,694 km

• M1: 43,982 km (0.084 R)
• M2: 166,802 km (0.099 R)
• M3: 280,646 km (0.114 R)
• M4: 524,191 km (0.046 R)
• M5: 721,660 km (0.118 R)
• M6: 883,375 km (0.11 R)
• M7: 1,069,026 km (0.091 R)
• M8: 1,235,828 km (0.075 R)
• M9: 1,403,677 km (0.065 R)
• M10: 1,569,431 km (0.115 R)
• M11: 1,900,641 km (0.116 R)
• M12: 4,422,263 km (0.112 R)
• M13: 4,779,054 km (0.12 R)
• M14: 6,444,377 km (0.082 R)
• M15: 7,934,671 km (0.063 R)
• M16: 8,353,545 km (0.103 R)
• M17: 13,753,729 km (0.084 R)
• M18: 14,053,374 km (0.103 R)
• M19: 14,743,469 km (0.058 R)
• M20: 18,264,703 km (0.112 R)
• M21: 18,445,118 km (0.059 R)
• M22: 18,717,985 km (0.118 R)
• M23: 19,365,145 km (0.062 R)
• M24: 22,410,659 km (0.106 R)
• M25: 23,563,759 km (0.117 R)
• M26: 37,489,526 km (0.045 R)
• M27: 51,250,435 km (0.113 R)
• M28: 55,103,179 km (0.112 R)
• M29: 55,479,866 km (0.069 R)
• M30: 56,620,251 km (0.091 R)
• M31: 58,947,695 km (0.091 R)
• M32: 59,539,354 km (0.111 R)
• M33: 65,886,941 km (0.087 R)
• M34: 69,332,779 km (0.12 R)
• M35: 75,416,625 km (0.065 R)
• M36: 76,815,365 km (0.111 R)
• M37: 77,285,402 km (0.117 R)
• M38: 78,468,870 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 580.7

Radius: 6

Gravity: 16.13 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 9.66 AU - 13.2 AU

Year: 24570 Days

Day: 16.9 Hours

Environment

Temp: -239 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 82,601,694 km

• M1: 76,445 km (0.091 R)
• M2: 400,174 km (0.107 R)
• M3: 1,379,592 km (0.117 R)
• M4: 2,005,210 km (0.11 R)
• M5: 2,347,639 km (0.047 R)
• M6: 4,254,863 km (0.095 R)
• M7: 5,238,469 km (0.117 R)
• M8: 9,316,058 km (0.098 R)
• M9: 9,963,218 km (0.064 R)
• M10: 10,267,201 km (0.088 R)
• M11: 10,703,129 km (0.119 R)
• M12: 11,086,399 km (0.078 R)
• M13: 11,948,382 km (0.076 R)
• M14: 12,500,548 km (0.047 R)
• M15: 12,925,854 km (0.111 R)
• M16: 16,937,920 km (0.088 R)
• M17: 18,440,630 km (0.042 R)
• M18: 29,115,486 km (0.088 R)
• M19: 29,363,070 km (0.085 R)
• M20: 37,604,417 km (0.043 R)
• M21: 39,540,064 km (0.105 R)
• M22: 43,932,855 km (0.118 R)
• M23: 47,262,455 km (0.085 R)
• M24: 52,201,130 km (0.072 R)
• M25: 55,741,214 km (0.116 R)
• M26: 62,264,579 km (0.056 R)
• M27: 62,675,524 km (0.082 R)
• M28: 63,502,950 km (0.061 R)
• M29: 65,815,583 km (0.092 R)
• M30: 66,455,862 km (0.117 R)
• M31: 66,670,236 km (0.091 R)
• M32: 67,100,330 km (0.103 R)
• M33: 79,183,799 km (0.076 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 451 - 16,574 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit