🌌 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: 1.07

Radius: 1.03

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.48 AU - 0.7 AU

Year: 297 Days

Day: 45.4 Hours

Environment

Temp: -126 °C

Axial Tilt: 1.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 81,906,200 km

• M1: 350,508 km (0.034 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 917.2

Radius: 10.5

Gravity: 8.32 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.81 AU - 1.11 AU

Year: 617 Days

Day: 10.6 Hours

Environment

Temp: -161 °C

Axial Tilt: 135.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 81,906,200 km

• M1: 130,599 km (0.094 R)
• M2: 555,307 km (0.064 R)
• M3: 1,022,950 km (0.067 R)
• M4: 1,401,882 km (0.12 R)
• M5: 1,866,832 km (0.086 R)
• M6: 2,915,363 km (0.055 R)
• M7: 3,302,074 km (0.072 R)
• M8: 3,680,556 km (0.075 R)
• M9: 4,640,077 km (0.084 R)
• M10: 5,099,193 km (0.097 R)
• M11: 5,458,527 km (0.041 R)
• M12: 6,577,370 km (0.069 R)
• M13: 7,047,855 km (0.12 R)
• M14: 8,176,870 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870

Radius: 13.7

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.96 AU - 1 AU

Year: 636 Days

Day: 5.8 Hours

Environment

Temp: -163 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 81,906,200 km

• M1: 170,542 km (0.115 R)
• M2: 629,209 km (0.11 R)
• M3: 1,171,351 km (0.096 R)
• M4: 2,334,924 km (0.095 R)
• M5: 2,867,492 km (0.112 R)
• M6: 3,480,993 km (0.106 R)
• M7: 3,942,652 km (0.052 R)
• M8: 5,042,645 km (0.111 R)
• M9: 6,177,345 km (0.112 R)
• M10: 6,668,026 km (0.09 R)
• M11: 7,318,029 km (0.053 R)
• M12: 7,844,763 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 146.1

Radius: 10.3

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.84 AU - 1.2 AU

Year: 676 Days

Day: 6 Hours

Environment

Temp: -157 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 81,906,200 km

• M1: 128,056 km (0.118 R)
• M2: 543,788 km (0.047 R)
• M3: 1,825,094 km (0.117 R)
• M4: 2,364,544 km (0.119 R)
• M5: 3,931,582 km (0.05 R)
• M6: 4,347,763 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 649.2

Radius: 14

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 1.44 AU - 1.5 AU

Year: 1169 Days

Day: 10.8 Hours

Environment

Temp: -183 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 81,906,200 km

• M1: 174,581 km (0.078 R)
• M2: 699,819 km (0.075 R)
• M3: 1,281,306 km (0.05 R)
• M4: 2,508,756 km (0.093 R)
• M5: 3,260,336 km (0.067 R)
• M6: 3,894,930 km (0.112 R)
• M7: 4,503,644 km (0.115 R)
• M8: 5,373,406 km (0.101 R)
• M9: 6,262,915 km (0.103 R)
• M10: 6,743,423 km (0.084 R)
• M11: 8,692,683 km (0.055 R)
• M12: 9,147,012 km (0.116 R)
• M13: 10,103,391 km (0.117 R)
• M14: 10,831,185 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 102.6

Radius: 13.1

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 2.65 AU - 4.37 AU

Year: 4314 Days

Day: 5.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 81,906,200 km

• M1: 174,132 km (0.052 R)
• M2: 665,411 km (0.055 R)
• M3: 1,321,548 km (0.114 R)
• M4: 1,822,700 km (0.077 R)
• M5: 3,010,508 km (0.091 R)
• M6: 4,109,454 km (0.095 R)
• M7: 5,219,769 km (0.068 R)
• M8: 5,707,458 km (0.104 R)
• M9: 6,347,438 km (0.07 R)
• M10: 7,167,683 km (0.104 R)
• M11: 8,173,579 km (0.108 R)
• M12: 9,691,249 km (0.099 R)
• M13: 11,426,136 km (0.082 R)
• M14: 14,106,481 km (0.069 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966.8

Radius: 14.5

Gravity: 4.6 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 2.78 AU - 4.44 AU

Year: 4500 Days

Day: 10.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 81,906,200 km

• M1: 180,265 km (0.032 R)
• M2: 719,416 km (0.079 R)
• M3: 1,170,903 km (0.031 R)
• M4: 2,506,064 km (0.118 R)
• M5: 3,002,878 km (0.118 R)
• M6: 4,175,277 km (0.041 R)
• M7: 6,148,024 km (0.101 R)
• M8: 7,517,891 km (0.079 R)
• M9: 8,256,007 km (0.082 R)
• M10: 9,834,564 km (0.077 R)
• M11: 13,583,038 km (0.078 R)
• M12: 14,234,088 km (0.047 R)
• M13: 14,792,387 km (0.104 R)
• M14: 15,249,558 km (0.112 R)
• M15: 15,775,245 km (0.091 R)
• M16: 17,425,160 km (0.105 R)
• M17: 21,792,071 km (0.061 R)
• M18: 23,140,846 km (0.067 R)
• M19: 23,680,146 km (0.114 R)
• M20: 28,214,458 km (0.082 R)
• M21: 29,275,555 km (0.094 R)
• M22: 30,454,985 km (0.114 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 911.3

Radius: 11.3

Gravity: 7.14 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 4.04 AU - 5.28 AU

Year: 6599 Days

Day: 9 Hours

Environment

Temp: -212 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 81,906,200 km

• M1: 141,071 km (0.113 R)
• M2: 612,454 km (0.105 R)
• M3: 1,142,180 km (0.114 R)
• M4: 1,761,515 km (0.065 R)
• M5: 2,360,206 km (0.032 R)
• M6: 2,746,617 km (0.06 R)
• M7: 3,111,785 km (0.099 R)
• M8: 3,509,416 km (0.096 R)
• M9: 4,327,567 km (0.03 R)
• M10: 4,970,090 km (0.068 R)
• M11: 5,453,590 km (0.077 R)
• M12: 5,902,384 km (0.095 R)
• M13: 6,480,430 km (0.067 R)
• M14: 6,947,624 km (0.06 R)
• M15: 8,528,126 km (0.113 R)
• M16: 9,815,266 km (0.095 R)
• M17: 14,093,017 km (0.087 R)
• M18: 16,539,092 km (0.063 R)
• M19: 17,413,791 km (0.091 R)
• M20: 18,319,007 km (0.116 R)
• M21: 19,036,479 km (0.092 R)
• M22: 19,698,150 km (0.084 R)
• M23: 21,380,228 km (0.06 R)
• M24: 25,115,687 km (0.066 R)
• M25: 26,815,867 km (0.103 R)
• M26: 28,116,920 km (0.045 R)
• M27: 29,362,172 km (0.098 R)
• M28: 33,850,557 km (0.076 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 256.7

Radius: 6.2

Gravity: 6.68 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 8.45 AU - 11.53 AU

Year: 20714 Days

Day: 16.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 81,906,200 km

• M1: 78,838 km (0.108 R)
• M2: 285,882 km (0.12 R)
• M3: 499,358 km (0.056 R)
• M4: 861,983 km (0.055 R)
• M5: 1,108,969 km (0.087 R)
• M6: 2,166,476 km (0.078 R)
• M7: 2,564,855 km (0.072 R)
• M8: 3,327,356 km (0.071 R)
• M9: 3,559,382 km (0.036 R)
• M10: 3,802,329 km (0.103 R)
• M11: 3,998,901 km (0.106 R)
• M12: 4,321,434 km (0.049 R)
• M13: 5,187,157 km (0.089 R)
• M14: 5,499,966 km (0.08 R)
• M15: 8,664,260 km (0.073 R)
• M16: 10,031,136 km (0.096 R)
• M17: 10,571,932 km (0.073 R)
• M18: 11,419,404 km (0.112 R)
• M19: 12,129,395 km (0.084 R)
• M20: 12,805,578 km (0.095 R)
• M21: 13,441,817 km (0.077 R)
• M22: 17,018,703 km (0.095 R)
• M23: 17,631,904 km (0.11 R)
• M24: 18,180,480 km (0.088 R)
• M25: 18,498,973 km (0.089 R)
• M26: 19,476,895 km (0.103 R)
• M27: 19,726,723 km (0.106 R)
• M28: 20,660,962 km (0.052 R)
• M29: 21,535,511 km (0.094 R)
• M30: 30,883,284 km (0.112 R)
• M31: 31,794,933 km (0.103 R)
• M32: 35,745,364 km (0.12 R)
• M33: 38,292,268 km (0.078 R)
• M34: 45,328,903 km (0.086 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 680.2

Radius: 6.2

Gravity: 17.7 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 8.22 AU - 12.84 AU

Year: 22416 Days

Day: 24.8 Hours

Environment

Temp: -238 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 81,906,200 km

• M1: 78,240 km (0.107 R)
• M2: 364,420 km (0.108 R)
• M3: 570,417 km (0.103 R)
• M4: 771,775 km (0.113 R)
• M5: 1,355,656 km (0.065 R)
• M6: 2,011,493 km (0.114 R)
• M7: 2,468,066 km (0.109 R)
• M8: 3,379,266 km (0.103 R)
• M9: 3,676,517 km (0.063 R)
• M10: 5,314,165 km (0.119 R)
• M11: 5,553,372 km (0.076 R)
• M12: 7,191,170 km (0.037 R)
• M13: 9,528,487 km (0.055 R)
• M14: 10,183,426 km (0.075 R)
• M15: 12,259,546 km (0.103 R)
• M16: 12,537,498 km (0.085 R)
• M17: 12,748,731 km (0.115 R)
• M18: 13,543,394 km (0.087 R)
• M19: 14,294,226 km (0.102 R)
• M20: 18,287,741 km (0.054 R)
• M21: 19,579,220 km (0.099 R)
• M22: 23,495,842 km (0.09 R)
• M23: 25,580,488 km (0.1 R)
• M24: 27,547,401 km (0.1 R)
• M25: 32,172,368 km (0.048 R)
• M26: 32,568,653 km (0.081 R)
• M27: 34,737,074 km (0.045 R)
• M28: 39,660,789 km (0.07 R)
• M29: 40,116,464 km (0.068 R)
• M30: 42,764,047 km (0.046 R)
• M31: 45,525,923 km (0.092 R)
• M32: 46,696,975 km (0.054 R)
• M33: 56,031,733 km (0.104 R)
• M34: 69,352,825 km (0.068 R)
• M35: 74,299,278 km (0.07 R)
• M36: 75,455,371 km (0.114 R)
• M37: 75,687,995 km (0.052 R)
• M38: 77,329,982 km (0.119 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: 427 - 11,181 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit