🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.8 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 555.4

Radius: 8

Gravity: 8.68 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.31 AU - 1.89 AU

Year: 1423 Days

Day: 8.6 Hours

Environment

Temp: -196 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 81,449,578 km

• M1: 99,632 km (0.062 R)
• M2: 373,247 km (0.114 R)
• M3: 788,979 km (0.096 R)
• M4: 1,128,566 km (0.037 R)
• M5: 1,486,255 km (0.07 R)
• M6: 1,808,040 km (0.067 R)
• M7: 2,120,400 km (0.083 R)
• M8: 2,432,312 km (0.082 R)
• M9: 2,735,098 km (0.062 R)
• M10: 3,402,005 km (0.097 R)
• M11: 5,943,523 km (0.118 R)
• M12: 6,615,367 km (0.088 R)
• M13: 7,107,544 km (0.116 R)
• M14: 7,518,789 km (0.112 R)
• M15: 8,109,850 km (0.084 R)
• M16: 9,233,480 km (0.037 R)
• M17: 9,723,114 km (0.105 R)
• M18: 10,555,925 km (0.105 R)
• M19: 10,989,609 km (0.079 R)
• M20: 11,928,485 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260.5

Radius: 11

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.42 AU - 2.3 AU

Year: 1783 Days

Day: 13.7 Hours

Environment

Temp: -191 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 81,449,578 km

• M1: 136,882 km (0.11 R)
• M2: 556,354 km (0.114 R)
• M3: 1,895,555 km (0.032 R)
• M4: 2,471,955 km (0.113 R)
• M5: 2,984,926 km (0.108 R)
• M6: 3,508,070 km (0.095 R)
• M7: 3,927,692 km (0.107 R)
• M8: 4,277,153 km (0.053 R)
• M9: 5,000,907 km (0.117 R)
• M10: 6,061,855 km (0.101 R)
• M11: 7,023,321 km (0.117 R)
• M12: 7,952,174 km (0.043 R)
• M13: 8,542,038 km (0.117 R)
• M14: 9,218,670 km (0.119 R)
• M15: 10,551,736 km (0.052 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 832.7

Radius: 8.8

Gravity: 10.75 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 2.55 AU - 2.71 AU

Year: 2998 Days

Day: 14.6 Hours

Environment

Temp: -204 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 81,449,578 km

• M1: 109,506 km (0.105 R)
• M2: 725,250 km (0.11 R)
• M3: 1,095,655 km (0.047 R)
• M4: 1,380,639 km (0.086 R)
• M5: 1,716,037 km (0.05 R)
• M6: 2,825,455 km (0.085 R)
• M7: 3,987,232 km (0.115 R)
• M8: 5,893,857 km (0.036 R)
• M9: 6,401,442 km (0.065 R)
• M10: 6,907,382 km (0.095 R)
• M11: 7,798,537 km (0.07 R)
• M12: 8,944,905 km (0.097 R)
• M13: 12,592,102 km (0.085 R)
• M14: 20,286,668 km (0.118 R)
• M15: 20,667,395 km (0.081 R)
• M16: 21,247,386 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 15.1

Radius: 12

Gravity: 0.1 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 2.58 AU - 4.3 AU

Year: 4485 Days

Day: 5.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 81,449,578 km

• M1: 245,640 km (0.032 R)
• M2: 738,116 km (0.118 R)
• M3: 3,914,827 km (0.052 R)
• M4: 6,303,157 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 245.5

Radius: 10.6

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 4.07 AU - 4.37 AU

Year: 6094 Days

Day: 7.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 81,449,578 km

• M1: 133,441 km (0.055 R)
• M2: 530,624 km (0.119 R)
• M3: 885,320 km (0.1 R)
• M4: 1,364,781 km (0.087 R)
• M5: 2,040,216 km (0.059 R)
• M6: 2,675,109 km (0.063 R)
• M7: 3,048,356 km (0.098 R)
• M8: 3,554,296 km (0.037 R)
• M9: 3,943,250 km (0.08 R)
• M10: 4,905,464 km (0.052 R)
• M11: 6,276,229 km (0.107 R)
• M12: 7,921,058 km (0.061 R)
• M13: 8,588,414 km (0.093 R)
• M14: 9,757,072 km (0.057 R)
• M15: 10,565,499 km (0.07 R)
• M16: 13,799,356 km (0.104 R)
• M17: 14,765,459 km (0.069 R)
• M18: 15,994,705 km (0.114 R)
• M19: 21,000,549 km (0.072 R)
• M20: 21,599,389 km (0.12 R)
• M21: 22,209,449 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 365.4

Radius: 12

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 4.15 AU - 4.71 AU

Year: 6554 Days

Day: 11.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 87.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 81,449,578 km

• M1: 149,299 km (0.052 R)
• M2: 562,787 km (0.028 R)
• M3: 1,188,405 km (0.054 R)
• M4: 1,603,540 km (0.091 R)
• M5: 2,469,412 km (0.119 R)
• M6: 2,934,512 km (0.032 R)
• M7: 4,567,971 km (0.099 R)
• M8: 5,384,775 km (0.094 R)
• M9: 6,051,683 km (0.083 R)
• M10: 6,515,885 km (0.027 R)
• M11: 7,376,970 km (0.109 R)
• M12: 8,016,351 km (0.077 R)
• M13: 8,463,051 km (0.112 R)
• M14: 9,777,567 km (0.094 R)
• M15: 11,831,396 km (0.06 R)
• M16: 14,867,635 km (0.106 R)
• M17: 19,036,479 km (0.05 R)
• M18: 19,968,473 km (0.08 R)
• M19: 22,578,059 km (0.078 R)
• M20: 24,079,572 km (0.098 R)
• M21: 26,129,662 km (0.06 R)
• M22: 26,700,826 km (0.05 R)
• M23: 28,636,772 km (0.09 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 86.5

Radius: 7.8

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 5.33 AU - 7.99 AU

Year: 12081 Days

Day: 17 Hours

Environment

Temp: -239 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 81,449,578 km

• M1: 102,325 km (0.081 R)
• M2: 644,019 km (0.058 R)
• M3: 1,203,515 km (0.112 R)
• M4: 1,956,740 km (0.076 R)
• M5: 2,865,398 km (0.107 R)
• M6: 4,030,316 km (0.112 R)
• M7: 6,176,148 km (0.117 R)
• M8: 7,222,436 km (0.06 R)
• M9: 10,284,854 km (0.076 R)
• M10: 23,254,989 km (0.109 R)
• M11: 26,551,228 km (0.073 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 744.9

Radius: 5.4

Gravity: 25.55 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 6.47 AU - 9.35 AU

Year: 15638 Days

Day: 24.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 81,449,578 km

• M1: 70,461 km (0.069 R)
• M2: 265,237 km (0.114 R)
• M3: 559,047 km (0.05 R)
• M4: 961,466 km (0.108 R)
• M5: 1,141,432 km (0.064 R)
• M6: 1,492,538 km (0.078 R)
• M7: 1,787,695 km (0.064 R)
• M8: 2,281,966 km (0.062 R)
• M9: 2,628,883 km (0.114 R)
• M10: 2,936,008 km (0.088 R)
• M11: 3,853,043 km (0.112 R)
• M12: 4,032,710 km (0.066 R)
• M13: 5,756,975 km (0.063 R)
• M14: 7,919,861 km (0.083 R)
• M15: 12,679,168 km (0.05 R)
• M16: 13,971,095 km (0.104 R)
• M17: 14,830,834 km (0.027 R)
• M18: 16,576,491 km (0.071 R)
• M19: 19,053,234 km (0.078 R)
• M20: 21,766,041 km (0.111 R)
• M21: 25,452,881 km (0.084 R)
• M22: 25,768,832 km (0.07 R)
• M23: 26,301,250 km (0.066 R)
• M24: 26,624,232 km (0.089 R)
• M25: 28,845,461 km (0.063 R)
• M26: 39,951,757 km (0.093 R)
• M27: 44,054,479 km (0.119 R)
• M28: 49,403,051 km (0.086 R)
• M29: 51,557,410 km (0.111 R)
• M30: 57,125,593 km (0.037 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 22.9

Radius: 7.6

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 7.18 AU - 10.26 AU

Year: 18100 Days

Day: 24 Hours

Environment

Temp: -233 °C

Axial Tilt: 48.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 81,449,578 km

• M1: 101,427 km (0.117 R)
• M2: 1,459,776 km (0.046 R)
• M3: 2,573,233 km (0.046 R)
• M4: 3,361,763 km (0.074 R)
• M5: 5,485,156 km (0.097 R)
• M6: 8,834,053 km (0.046 R)
• M7: 13,153,542 km (0.11 R)
• M8: 13,874,455 km (0.09 R)
• M9: 14,170,060 km (0.088 R)
• M10: 15,185,979 km (0.036 R)
• M11: 16,033,002 km (0.094 R)
• M12: 20,427,589 km (0.104 R)
• M13: 22,660,487 km (0.106 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 604.7

Radius: 3.6

Gravity: 46.66 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 10.08 AU - 10.72 AU

Year: 23575 Days

Day: 22.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 81,449,578 km

• M1: 44,879 km (0.086 R)
• M2: 347,965 km (0.1 R)
• M3: 466,297 km (0.068 R)
• M4: 911,500 km (0.069 R)
• M5: 3,565,067 km (0.082 R)
• M6: 3,748,623 km (0.104 R)
• M7: 4,035,851 km (0.064 R)
• M8: 9,331,766 km (0.094 R)
• M9: 17,105,918 km (0.074 R)
• M10: 23,768,858 km (0.105 R)
• M11: 24,748,275 km (0.107 R)
• M12: 26,209,846 km (0.109 R)
• M13: 27,372,521 km (0.118 R)
• M14: 28,327,105 km (0.094 R)
• M15: 33,434,825 km (0.104 R)
• M16: 36,919,857 km (0.09 R)
• M17: 56,089,178 km (0.099 R)
• M18: 56,470,803 km (0.111 R)
• M19: 59,785,443 km (0.102 R)
• M20: 62,815,697 km (0.075 R)
• M21: 66,798,890 km (0.057 R)
• M22: 69,839,168 km (0.05 R)
• M23: 70,724,488 km (0.111 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: 282 - 18,342 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit