🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683.9

Radius: 12.7

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.56 AU - 0.86 AU

Year: 392 Days

Day: 6.5 Hours

Environment

Temp: -143 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 69,936,573 km

• M1: 157,975 km (0.108 R)
• M2: 559,047 km (0.036 R)
• M3: 1,071,869 km (0.079 R)
• M4: 1,675,197 km (0.107 R)
• M5: 2,130,722 km (0.084 R)
• M6: 2,797,779 km (0.057 R)
• M7: 3,332,143 km (0.095 R)
• M8: 3,746,230 km (0.103 R)
• M9: 4,824,531 km (0.076 R)
• M10: 5,516,571 km (0.069 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 726.5

Radius: 14.4

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.6 AU - 0.98 AU

Year: 461 Days

Day: 11.8 Hours

Environment

Temp: -138 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 69,936,573 km

• M1: 179,069 km (0.071 R)
• M2: 628,012 km (0.082 R)
• M3: 1,103,135 km (0.093 R)
• M4: 1,661,733 km (0.03 R)
• M5: 2,290,194 km (0.04 R)
• M6: 2,743,176 km (0.079 R)
• M7: 3,543,674 km (0.104 R)
• M8: 4,087,612 km (0.116 R)
• M9: 4,657,281 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 442.4

Radius: 9.5

Gravity: 4.9 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.89 AU - 0.97 AU

Year: 588 Days

Day: 8.4 Hours

Environment

Temp: -146 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 69,936,573 km

• M1: 119,529 km (0.106 R)
• M2: 445,054 km (0.043 R)
• M3: 841,638 km (0.041 R)
• M4: 1,400,535 km (0.072 R)
• M5: 1,814,772 km (0.1 R)
• M6: 2,559,919 km (0.052 R)
• M7: 3,196,308 km (0.113 R)
• M8: 3,672,628 km (0.105 R)
• M9: 4,167,497 km (0.118 R)
• M10: 5,016,765 km (0.102 R)
• M11: 5,457,330 km (0.079 R)
• M12: 5,835,364 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 501.7

Radius: 11.4

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1.09 AU - 1.41 AU

Year: 917 Days

Day: 6 Hours

Environment

Temp: -173 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 69,936,573 km

• M1: 174,581 km (0.07 R)
• M2: 572,511 km (0.034 R)
• M3: 1,121,685 km (0.041 R)
• M4: 1,487,751 km (0.097 R)
• M5: 1,845,589 km (0.089 R)
• M6: 2,672,117 km (0.03 R)
• M7: 4,484,645 km (0.062 R)
• M8: 4,977,420 km (0.066 R)
• M9: 5,620,093 km (0.12 R)
• M10: 6,112,419 km (0.119 R)
• M11: 7,575,487 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 113.4

Radius: 15

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.31 AU - 1.47 AU

Year: 1075 Days

Day: 8.1 Hours

Environment

Temp: -175 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 69,936,573 km

• M1: 186,848 km (0.1 R)
• M2: 1,156,092 km (0.117 R)
• M3: 2,637,710 km (0.077 R)
• M4: 3,969,131 km (0.032 R)
• M5: 4,602,229 km (0.113 R)
• M6: 5,286,190 km (0.066 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 220.5

Radius: 8.6

Gravity: 2.98 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 3.54 AU - 3.78 AU

Year: 4593 Days

Day: 7.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 69,936,573 km

• M1: 205,847 km (0.106 R)
• M2: 616,493 km (0.057 R)
• M3: 1,234,332 km (0.054 R)
• M4: 1,547,889 km (0.071 R)
• M5: 1,926,970 km (0.062 R)
• M6: 4,142,215 km (0.06 R)
• M7: 4,609,110 km (0.114 R)
• M8: 6,778,130 km (0.113 R)
• M9: 7,735,556 km (0.11 R)
• M10: 10,102,494 km (0.04 R)
• M11: 10,752,646 km (0.093 R)
• M12: 11,883,606 km (0.094 R)
• M13: 13,047,627 km (0.048 R)
• M14: 13,726,053 km (0.042 R)
• M15: 14,144,479 km (0.118 R)
• M16: 14,619,153 km (0.06 R)
• M17: 17,803,343 km (0.082 R)
• M18: 18,300,906 km (0.107 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479.4

Radius: 9.3

Gravity: 5.54 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 3.62 AU - 5.68 AU

Year: 6578 Days

Day: 10.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 69,936,573 km

• M1: 121,623 km (0.087 R)
• M2: 679,324 km (0.102 R)
• M3: 1,127,669 km (0.097 R)
• M4: 1,714,092 km (0.075 R)
• M5: 2,018,225 km (0.109 R)
• M6: 2,960,991 km (0.114 R)
• M7: 4,599,387 km (0.029 R)
• M8: 4,890,504 km (0.079 R)
• M9: 5,336,156 km (0.086 R)
• M10: 6,276,827 km (0.032 R)
• M11: 9,761,859 km (0.058 R)
• M12: 10,155,900 km (0.095 R)
• M13: 11,987,128 km (0.042 R)
• M14: 13,430,897 km (0.109 R)
• M15: 16,230,771 km (0.112 R)
• M16: 17,864,080 km (0.117 R)
• M17: 18,720,678 km (0.116 R)
• M18: 21,749,286 km (0.053 R)
• M19: 22,422,178 km (0.114 R)
• M20: 25,253,317 km (0.099 R)
• M21: 28,847,406 km (0.071 R)
• M22: 30,394,398 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 630.8

Radius: 5.3

Gravity: 22.46 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 7.67 AU - 10.77 AU

Year: 18366 Days

Day: 15.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 69,936,573 km

• M1: 65,973 km (0.092 R)
• M2: 346,768 km (0.103 R)
• M3: 927,208 km (0.084 R)
• M4: 1,933,552 km (0.052 R)
• M5: 2,554,084 km (0.1 R)
• M6: 3,010,508 km (0.105 R)
• M7: 3,960,753 km (0.1 R)
• M8: 5,354,257 km (0.042 R)
• M9: 12,937,523 km (0.1 R)
• M10: 15,925,292 km (0.058 R)
• M11: 16,239,298 km (0.102 R)
• M12: 24,341,070 km (0.068 R)
• M13: 31,716,245 km (0.096 R)
• M14: 36,108,737 km (0.063 R)
• M15: 37,889,999 km (0.098 R)
• M16: 40,306,603 km (0.084 R)
• M17: 42,673,092 km (0.073 R)
• M18: 59,030,422 km (0.112 R)
• M19: 59,217,719 km (0.07 R)
• M20: 64,230,295 km (0.111 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 169 - 15,860 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit