🌌 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: 4.88

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.5 AU - 0.68 AU

Year: 297 Days

Day: 13.1 Hours

Environment

Temp: -123 °C

Axial Tilt: 35.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 81,404,708 km

• M1: 187,895 km (0.027 R)
• M2: 492,626 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 926

Radius: 10.5

Gravity: 8.4 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.61 AU - 0.85 AU

Year: 409 Days

Day: 10.7 Hours

Environment

Temp: -150 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 81,404,708 km

• M1: 130,749 km (0.09 R)
• M2: 501,751 km (0.08 R)
• M3: 900,878 km (0.114 R)
• M4: 2,025,854 km (0.113 R)
• M5: 3,679,808 km (0.109 R)
• M6: 4,373,344 km (0.065 R)
• M7: 5,216,478 km (0.069 R)
• M8: 5,651,209 km (0.04 R)
• M9: 6,128,277 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966.5

Radius: 11.6

Gravity: 7.18 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.81 AU - 1.19 AU

Year: 656 Days

Day: 6.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 81,404,708 km

• M1: 144,212 km (0.081 R)
• M2: 670,348 km (0.101 R)
• M3: 1,149,959 km (0.102 R)
• M4: 1,745,358 km (0.092 R)
• M5: 4,024,931 km (0.098 R)
• M6: 4,449,340 km (0.07 R)
• M7: 5,008,686 km (0.109 R)
• M8: 6,476,840 km (0.091 R)
• M9: 7,287,660 km (0.074 R)
• M10: 7,945,143 km (0.079 R)
• M11: 8,667,551 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 694.9

Radius: 8.1

Gravity: 10.59 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 2.05 AU - 3.17 AU

Year: 2766 Days

Day: 7.1 Hours

Environment

Temp: -204 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 81,404,708 km

• M1: 107,112 km (0.064 R)
• M2: 364,720 km (0.089 R)
• M3: 780,003 km (0.076 R)
• M4: 1,190,949 km (0.079 R)
• M5: 1,482,515 km (0.071 R)
• M6: 2,308,894 km (0.119 R)
• M7: 2,768,009 km (0.067 R)
• M8: 4,070,558 km (0.11 R)
• M9: 5,714,040 km (0.037 R)
• M10: 6,057,068 km (0.113 R)
• M11: 6,784,563 km (0.102 R)
• M12: 8,378,827 km (0.063 R)
• M13: 9,756,025 km (0.116 R)
• M14: 11,237,044 km (0.08 R)
• M15: 12,159,913 km (0.08 R)
• M16: 12,951,884 km (0.108 R)
• M17: 13,730,990 km (0.068 R)
• M18: 14,492,443 km (0.032 R)
• M19: 14,785,206 km (0.117 R)
• M20: 16,413,430 km (0.109 R)
• M21: 17,216,471 km (0.104 R)
• M22: 18,441,229 km (0.057 R)
• M23: 19,191,612 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 989.6

Radius: 11.7

Gravity: 7.23 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 2.79 AU - 4.21 AU

Year: 4295 Days

Day: 13.3 Hours

Environment

Temp: -213 °C

Axial Tilt: 52.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 81,404,708 km

• M1: 145,559 km (0.095 R)
• M2: 586,124 km (0.08 R)
• M3: 1,142,180 km (0.079 R)
• M4: 1,554,172 km (0.096 R)
• M5: 2,110,527 km (0.103 R)
• M6: 2,603,601 km (0.107 R)
• M7: 4,412,988 km (0.074 R)
• M8: 5,088,272 km (0.081 R)
• M9: 5,742,165 km (0.116 R)
• M10: 6,451,259 km (0.077 R)
• M11: 7,217,798 km (0.117 R)
• M12: 7,677,363 km (0.098 R)
• M13: 8,499,702 km (0.043 R)
• M14: 9,630,064 km (0.047 R)
• M15: 10,452,553 km (0.096 R)
• M16: 11,653,076 km (0.11 R)
• M17: 12,486,336 km (0.095 R)
• M18: 13,306,581 km (0.074 R)
• M19: 14,107,827 km (0.096 R)
• M20: 15,572,390 km (0.095 R)
• M21: 17,448,348 km (0.103 R)
• M22: 18,801,909 km (0.045 R)
• M23: 22,827,588 km (0.096 R)
• M24: 25,728,141 km (0.071 R)
• M25: 27,224,568 km (0.1 R)
• M26: 28,080,568 km (0.095 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 406.8

Radius: 9.8

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 3.87 AU - 4.59 AU

Year: 5707 Days

Day: 12.1 Hours

Environment

Temp: -203 °C

Axial Tilt: 46 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 81,404,708 km

• M1: 121,922 km (0.113 R)
• M2: 721,211 km (0.098 R)
• M3: 1,463,965 km (0.071 R)
• M4: 3,193,316 km (0.08 R)
• M5: 4,277,452 km (0.112 R)
• M6: 5,152,749 km (0.106 R)
• M7: 5,647,320 km (0.11 R)
• M8: 5,964,916 km (0.094 R)
• M9: 6,510,350 km (0.11 R)
• M10: 7,527,765 km (0.103 R)
• M11: 8,572,257 km (0.049 R)
• M12: 9,467,152 km (0.075 R)
• M13: 9,792,677 km (0.047 R)
• M14: 10,682,934 km (0.092 R)
• M15: 12,046,967 km (0.094 R)
• M16: 13,370,908 km (0.054 R)
• M17: 14,252,638 km (0.084 R)
• M18: 15,172,814 km (0.065 R)
• M19: 18,421,631 km (0.045 R)
• M20: 21,264,589 km (0.115 R)
• M21: 26,257,418 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.4

Radius: 14.8

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 5.04 AU - 6.58 AU

Year: 9187 Days

Day: 9 Hours

Environment

Temp: -225 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 81,404,708 km

• M1: 191,934 km (0.089 R)
• M2: 720,314 km (0.084 R)
• M3: 1,611,468 km (0.076 R)
• M4: 2,882,901 km (0.066 R)
• M5: 3,582,869 km (0.068 R)
• M6: 4,289,869 km (0.078 R)
• M7: 4,915,786 km (0.109 R)
• M8: 7,167,533 km (0.105 R)
• M9: 7,854,038 km (0.066 R)
• M10: 11,148,333 km (0.117 R)
• M11: 15,834,935 km (0.089 R)
• M12: 17,201,661 km (0.049 R)
• M13: 18,716,489 km (0.098 R)
• M14: 26,559,905 km (0.119 R)
• M15: 33,657,427 km (0.116 R)
• M16: 36,242,179 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 203.8

Radius: 6.4

Gravity: 4.98 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 6.38 AU - 7.34 AU

Year: 11787 Days

Day: 23.3 Hours

Environment

Temp: -231 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 81,404,708 km

• M1: 79,586 km (0.09 R)
• M2: 895,642 km (0.098 R)
• M3: 1,161,627 km (0.108 R)
• M4: 1,811,929 km (0.09 R)
• M5: 5,443,717 km (0.102 R)
• M6: 5,783,454 km (0.108 R)
• M7: 6,006,803 km (0.06 R)
• M8: 8,285,927 km (0.034 R)
• M9: 8,987,690 km (0.086 R)
• M10: 10,136,752 km (0.116 R)
• M11: 12,723,000 km (0.098 R)
• M12: 14,341,200 km (0.113 R)
• M13: 15,411,872 km (0.115 R)
• M14: 22,503,409 km (0.028 R)
• M15: 24,523,579 km (0.098 R)
• M16: 25,534,861 km (0.105 R)
• M17: 27,103,693 km (0.101 R)
• M18: 30,240,162 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 894.7

Radius: 6

Gravity: 24.85 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 6.69 AU - 10.63 AU

Year: 16718 Days

Day: 21.9 Hours

Environment

Temp: -235 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 81,404,708 km

• M1: 74,799 km (0.115 R)
• M2: 268,379 km (0.066 R)
• M3: 596,447 km (0.102 R)
• M4: 797,207 km (0.081 R)
• M5: 1,106,725 km (0.11 R)
• M6: 1,799,513 km (0.087 R)
• M7: 2,145,981 km (0.096 R)
• M8: 2,700,242 km (0.077 R)
• M9: 3,457,506 km (0.11 R)
• M10: 4,216,865 km (0.082 R)
• M11: 5,459,425 km (0.077 R)
• M12: 5,694,742 km (0.095 R)
• M13: 6,615,667 km (0.052 R)
• M14: 8,076,639 km (0.117 R)
• M15: 8,695,975 km (0.118 R)
• M16: 11,113,626 km (0.048 R)
• M17: 12,341,525 km (0.105 R)
• M18: 14,238,277 km (0.1 R)
• M19: 14,460,280 km (0.081 R)
• M20: 14,987,463 km (0.094 R)
• M21: 15,449,421 km (0.06 R)
• M22: 15,920,953 km (0.098 R)
• M23: 16,975,170 km (0.039 R)
• M24: 18,598,606 km (0.114 R)
• M25: 20,322,871 km (0.112 R)
• M26: 23,257,831 km (0.062 R)
• M27: 26,463,564 km (0.116 R)
• M28: 27,594,374 km (0.115 R)
• M29: 37,401,562 km (0.048 R)
• M30: 40,578,722 km (0.064 R)
• M31: 40,876,122 km (0.089 R)
• M32: 51,181,172 km (0.093 R)
• M33: 51,702,670 km (0.087 R)
• M34: 65,715,203 km (0.095 R)
• M35: 69,045,252 km (0.108 R)

Planet 10 - Ice Giant

Semi-Major Axis: 11.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 570.1

Radius: 7.6

Gravity: 9.87 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 10.47 AU - 11.73 AU

Year: 24260 Days

Day: 16.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 81,404,708 km

• M1: 94,845 km (0.11 R)
• M2: 380,128 km (0.114 R)
• M3: 984,204 km (0.09 R)
• M4: 1,261,260 km (0.095 R)
• M5: 1,607,728 km (0.065 R)
• M6: 2,160,792 km (0.103 R)
• M7: 3,178,805 km (0.052 R)
• M8: 5,067,628 km (0.108 R)
• M9: 5,576,410 km (0.075 R)
• M10: 6,424,929 km (0.099 R)
• M11: 6,973,654 km (0.086 R)
• M12: 7,259,685 km (0.119 R)
• M13: 8,699,116 km (0.059 R)
• M14: 9,370,661 km (0.117 R)
• M15: 11,927,737 km (0.101 R)
• M16: 16,372,889 km (0.111 R)
• M17: 18,011,135 km (0.05 R)
• M18: 18,279,364 km (0.118 R)
• M19: 20,815,646 km (0.098 R)
• M20: 27,272,889 km (0.086 R)
• M21: 29,196,268 km (0.09 R)
• M22: 29,815,454 km (0.074 R)
• M23: 30,065,582 km (0.116 R)
• M24: 34,534,668 km (0.077 R)
• M25: 41,881,719 km (0.099 R)
• M26: 45,420,158 km (0.067 R)
• M27: 50,559,742 km (0.118 R)
• M28: 52,174,053 km (0.118 R)
• M29: 54,007,674 km (0.082 R)
• M30: 58,387,151 km (0.118 R)
• M31: 64,447,660 km (0.104 R)
• M32: 66,984,840 km (0.083 R)
• M33: 68,712,845 km (0.062 R)
• M34: 74,764,079 km (0.113 R)
• M35: 76,155,489 km (0.103 R)
• M36: 76,622,982 km (0.115 R)
• M37: 81,404,729 km (0.118 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 524 - 17,511 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit