🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.23

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.5 AU - 0.62 AU

Year: 275 Days

Day: 12.1 Hours

Environment

Temp: -128 °C

Axial Tilt: 49 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 89,830,282 km

• M1: 25,432 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 656

Radius: 12.6

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.61 AU - 1.01 AU

Year: 478 Days

Day: 15 Hours

Environment

Temp: -153 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 89,830,282 km

• M1: 156,779 km (0.062 R)
• M2: 578,046 km (0.102 R)
• M3: 1,139,038 km (0.091 R)
• M4: 1,777,372 km (0.029 R)
• M5: 2,605,696 km (0.118 R)
• M6: 3,025,318 km (0.103 R)
• M7: 3,702,248 km (0.106 R)
• M8: 4,235,864 km (0.099 R)
• M9: 4,699,468 km (0.103 R)
• M10: 5,100,839 km (0.103 R)
• M11: 6,116,309 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.4

Radius: 9.7

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 2.91 AU - 2.95 AU

Year: 3290 Days

Day: 10.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 89,830,282 km

• M1: 120,576 km (0.108 R)
• M2: 438,322 km (0.106 R)
• M3: 760,855 km (0.099 R)
• M4: 2,320,413 km (0.034 R)
• M5: 4,727,143 km (0.119 R)
• M6: 5,066,281 km (0.072 R)
• M7: 8,561,636 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 377.4

Radius: 11.7

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 3.55 AU - 4.61 AU

Year: 5406 Days

Day: 9.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 89,830,282 km

• M1: 148,251 km (0.114 R)
• M2: 522,246 km (0.072 R)
• M3: 1,043,894 km (0.07 R)
• M4: 1,416,841 km (0.097 R)
• M5: 2,384,740 km (0.106 R)
• M6: 3,049,403 km (0.032 R)
• M7: 3,749,820 km (0.092 R)
• M8: 5,718,977 km (0.11 R)
• M9: 6,598,912 km (0.102 R)
• M10: 9,624,379 km (0.11 R)
• M11: 10,068,685 km (0.045 R)
• M12: 10,696,547 km (0.108 R)
• M13: 13,472,635 km (0.087 R)
• M14: 14,548,543 km (0.03 R)
• M15: 15,080,662 km (0.113 R)
• M16: 17,163,214 km (0.109 R)
• M17: 17,757,417 km (0.111 R)
• M18: 18,488,651 km (0.071 R)
• M19: 19,050,092 km (0.117 R)
• M20: 21,615,696 km (0.032 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 669.3

Radius: 5

Gravity: 26.77 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 6.04 AU - 6.28 AU

Year: 10030 Days

Day: 21.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 89,830,282 km

• M1: 62,233 km (0.111 R)
• M2: 226,042 km (0.059 R)
• M3: 420,520 km (0.113 R)
• M4: 870,061 km (0.102 R)
• M5: 1,412,653 km (0.056 R)
• M6: 1,803,851 km (0.09 R)
• M7: 2,120,400 km (0.075 R)
• M8: 2,453,555 km (0.098 R)
• M9: 2,799,575 km (0.071 R)
• M10: 3,715,862 km (0.06 R)
• M11: 4,228,085 km (0.115 R)
• M12: 4,486,590 km (0.073 R)
• M13: 6,119,301 km (0.113 R)
• M14: 6,301,810 km (0.115 R)
• M15: 8,154,879 km (0.076 R)
• M16: 8,555,652 km (0.048 R)
• M17: 10,918,550 km (0.077 R)
• M18: 12,833,702 km (0.087 R)
• M19: 15,697,604 km (0.1 R)
• M20: 17,459,418 km (0.12 R)
• M21: 18,501,517 km (0.117 R)
• M22: 19,270,899 km (0.108 R)
• M23: 20,708,833 km (0.045 R)
• M24: 21,622,128 km (0.111 R)
• M25: 22,388,967 km (0.099 R)
• M26: 26,497,224 km (0.111 R)
• M27: 27,970,912 km (0.114 R)
• M28: 29,602,127 km (0.11 R)
• M29: 32,276,339 km (0.104 R)
• M30: 34,184,011 km (0.066 R)
• M31: 40,611,932 km (0.067 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 266.5

Radius: 7.9

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 6.6 AU - 10.1 AU

Year: 15828 Days

Day: 24 Hours

Environment

Temp: -237 °C

Axial Tilt: 46.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 89,830,282 km

• M1: 148,551 km (0.077 R)
• M2: 449,841 km (0.071 R)
• M3: 713,731 km (0.113 R)
• M4: 1,095,356 km (0.102 R)
• M5: 1,365,978 km (0.096 R)
• M6: 2,639,505 km (0.066 R)
• M7: 3,088,298 km (0.096 R)
• M8: 3,415,020 km (0.069 R)
• M9: 5,278,112 km (0.118 R)
• M10: 5,542,452 km (0.103 R)
• M11: 5,920,635 km (0.104 R)
• M12: 6,501,224 km (0.065 R)
• M13: 7,860,620 km (0.038 R)
• M14: 8,118,826 km (0.11 R)
• M15: 8,927,851 km (0.105 R)
• M16: 9,642,032 km (0.082 R)
• M17: 11,900,959 km (0.11 R)
• M18: 15,076,773 km (0.104 R)
• M19: 15,882,656 km (0.047 R)
• M20: 17,144,814 km (0.109 R)
• M21: 18,171,803 km (0.117 R)
• M22: 22,175,042 km (0.114 R)
• M23: 30,264,696 km (0.095 R)
• M24: 32,308,652 km (0.078 R)
• M25: 35,956,147 km (0.091 R)
• M26: 36,311,592 km (0.081 R)
• M27: 36,909,086 km (0.117 R)
• M28: 39,995,739 km (0.087 R)
• M29: 45,147,740 km (0.047 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 190.5

Radius: 8

Gravity: 2.98 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 7.13 AU - 10.03 AU

Year: 16487 Days

Day: 15.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 89,830,282 km

• M1: 124,465 km (0.033 R)
• M2: 538,552 km (0.106 R)
• M3: 1,015,470 km (0.097 R)
• M4: 1,857,557 km (0.093 R)
• M5: 2,115,164 km (0.075 R)
• M6: 3,735,160 km (0.099 R)
• M7: 5,287,836 km (0.091 R)
• M8: 5,676,790 km (0.058 R)
• M9: 6,622,099 km (0.119 R)
• M10: 7,426,936 km (0.041 R)
• M11: 8,511,969 km (0.067 R)
• M12: 9,369,015 km (0.103 R)
• M13: 9,746,750 km (0.101 R)
• M14: 10,036,671 km (0.056 R)
• M15: 11,201,589 km (0.094 R)
• M16: 11,843,963 km (0.108 R)
• M17: 13,677,285 km (0.118 R)
• M18: 14,473,295 km (0.113 R)
• M19: 19,450,865 km (0.053 R)
• M20: 23,683,138 km (0.068 R)
• M21: 25,189,888 km (0.117 R)
• M22: 26,291,227 km (0.066 R)
• M23: 37,215,612 km (0.057 R)
• M24: 39,126,874 km (0.094 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 942.5

Radius: 6.5

Gravity: 22.31 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 8.15 AU - 10.05 AU

Year: 18008 Days

Day: 18.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 89,830,282 km

• M1: 85,869 km (0.092 R)
• M2: 454,628 km (0.068 R)
• M3: 886,367 km (0.071 R)
• M4: 1,547,889 km (0.033 R)
• M5: 2,125,337 km (0.092 R)
• M6: 2,639,804 km (0.083 R)
• M7: 3,124,800 km (0.077 R)
• M8: 3,403,052 km (0.115 R)
• M9: 3,697,910 km (0.073 R)
• M10: 5,553,821 km (0.107 R)
• M11: 6,525,010 km (0.096 R)
• M12: 6,887,935 km (0.074 R)
• M13: 8,529,323 km (0.045 R)
• M14: 9,018,807 km (0.049 R)
• M15: 10,974,500 km (0.114 R)
• M16: 11,293,592 km (0.113 R)
• M17: 11,950,327 km (0.05 R)
• M18: 12,632,343 km (0.096 R)
• M19: 13,924,869 km (0.102 R)
• M20: 16,686,296 km (0.108 R)
• M21: 21,930,449 km (0.083 R)
• M22: 24,977,459 km (0.052 R)
• M23: 27,236,088 km (0.098 R)
• M24: 31,127,278 km (0.071 R)
• M25: 33,604,618 km (0.054 R)
• M26: 38,214,477 km (0.081 R)
• M27: 46,140,322 km (0.079 R)
• M28: 47,643,930 km (0.093 R)
• M29: 47,982,470 km (0.112 R)
• M30: 51,634,453 km (0.119 R)
• M31: 53,985,683 km (0.085 R)
• M32: 56,407,224 km (0.095 R)
• M33: 63,081,233 km (0.091 R)
• M34: 70,044,117 km (0.117 R)
• M35: 77,035,424 km (0.047 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 958.8

Radius: 3.3

Gravity: 88.04 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 9.46 AU - 11.14 AU

Year: 21685 Days

Day: 17.6 Hours

Environment

Temp: -238 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (45)

Outer Limit: 89,830,282 km

• M1: 40,990 km (0.069 R)
• M2: 151,094 km (0.072 R)
• M3: 332,107 km (0.095 R)
• M4: 748,588 km (0.095 R)
• M5: 1,206,357 km (0.102 R)
• M6: 1,477,877 km (0.069 R)
• M7: 1,583,045 km (0.025 R)
• M8: 1,693,149 km (0.046 R)
• M9: 2,141,494 km (0.092 R)
• M10: 2,715,949 km (0.051 R)
• M11: 2,955,755 km (0.028 R)
• M12: 3,477,552 km (0.084 R)
• M13: 4,776,062 km (0.109 R)
• M14: 5,326,432 km (0.12 R)
• M15: 5,449,551 km (0.036 R)
• M16: 6,094,617 km (0.091 R)
• M17: 6,229,405 km (0.113 R)
• M18: 9,603,286 km (0.086 R)
• M19: 10,348,134 km (0.081 R)
• M20: 12,021,834 km (0.073 R)
• M21: 13,033,864 km (0.109 R)
• M22: 13,333,060 km (0.116 R)
• M23: 14,337,310 km (0.119 R)
• M24: 17,559,948 km (0.115 R)
• M25: 19,435,456 km (0.062 R)
• M26: 25,042,384 km (0.116 R)
• M27: 25,157,425 km (0.079 R)
• M28: 25,855,150 km (0.064 R)
• M29: 27,532,890 km (0.096 R)
• M30: 31,503,367 km (0.096 R)
• M31: 32,042,069 km (0.098 R)
• M32: 40,239,434 km (0.117 R)
• M33: 41,836,541 km (0.076 R)
• M34: 45,156,566 km (0.047 R)
• M35: 50,275,955 km (0.067 R)
• M36: 51,940,082 km (0.119 R)
• M37: 55,182,915 km (0.089 R)
• M38: 59,371,655 km (0.056 R)
• M39: 61,229,960 km (0.043 R)
• M40: 63,553,215 km (0.092 R)
• M41: 64,844,992 km (0.088 R)
• M42: 66,374,032 km (0.082 R)
• M43: 71,567,023 km (0.111 R)
• M44: 81,736,088 km (0.111 R)
• M45: 81,989,207 km (0.057 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 193 - 16,606 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit