🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.91

Radius: 0.96

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.46 AU - 0.56 AU

Year: 235 Days

Day: 12.8 Hours

Environment

Temp: -114 °C

Axial Tilt: 19.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 94,452,716 km

• M1: 25,282 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 991

Radius: 8.3

Gravity: 14.39 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.68 AU - 0.72 AU

Year: 378 Days

Day: 5 Hours

Environment

Temp: -131 °C

Axial Tilt: 46 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 94,452,716 km

• M1: 166,353 km (0.118 R)
• M2: 430,094 km (0.048 R)
• M3: 710,889 km (0.088 R)
• M4: 997,070 km (0.088 R)
• M5: 1,432,848 km (0.108 R)
• M6: 1,706,912 km (0.108 R)
• M7: 1,982,920 km (0.113 R)
• M8: 2,656,559 km (0.047 R)
• M9: 3,029,955 km (0.117 R)
• M10: 3,438,058 km (0.097 R)
• M11: 3,869,349 km (0.118 R)
• M12: 4,422,263 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.3

Radius: 11

Gravity: 1.55 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.62 AU - 0.8 AU

Year: 386 Days

Day: 8.6 Hours

Environment

Temp: -143 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 94,452,716 km

• M1: 136,732 km (0.04 R)
• M2: 574,456 km (0.096 R)
• M3: 1,137,542 km (0.065 R)
• M4: 1,584,690 km (0.113 R)
• M5: 1,933,253 km (0.031 R)
• M6: 2,763,970 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 139

Radius: 9.8

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.08 AU - 1.14 AU

Year: 755 Days

Day: 10.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 94,452,716 km

• M1: 128,953 km (0.11 R)
• M2: 602,879 km (0.072 R)
• M3: 1,089,820 km (0.108 R)
• M4: 2,039,917 km (0.057 R)
• M5: 3,321,821 km (0.089 R)
• M6: 4,008,026 km (0.077 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 557.8

Radius: 14.6

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 1.59 AU - 2.31 AU

Year: 1758 Days

Day: 13.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 149.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 94,452,716 km

• M1: 197,170 km (0.055 R)
• M2: 1,283,999 km (0.115 R)
• M3: 1,873,564 km (0.101 R)
• M4: 2,389,377 km (0.106 R)
• M5: 3,221,889 km (0.029 R)
• M6: 4,776,510 km (0.086 R)
• M7: 5,271,380 km (0.106 R)
• M8: 5,732,441 km (0.085 R)
• M9: 7,175,163 km (0.119 R)
• M10: 7,660,309 km (0.081 R)
• M11: 8,283,234 km (0.118 R)
• M12: 9,760,513 km (0.084 R)
• M13: 10,357,558 km (0.107 R)
• M14: 12,107,704 km (0.057 R)
• M15: 13,073,208 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130.2

Radius: 13.5

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.78 AU - 2.72 AU

Year: 2179 Days

Day: 11.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 94,452,716 km

• M1: 167,849 km (0.095 R)
• M2: 714,779 km (0.111 R)
• M3: 1,199,625 km (0.105 R)
• M4: 1,738,776 km (0.111 R)
• M5: 2,245,165 km (0.045 R)
• M6: 3,199,001 km (0.07 R)
• M7: 3,694,619 km (0.066 R)
• M8: 5,005,694 km (0.114 R)
• M9: 6,193,801 km (0.035 R)
• M10: 6,696,300 km (0.069 R)
• M11: 8,265,881 km (0.081 R)
• M12: 9,123,226 km (0.087 R)
• M13: 9,804,495 km (0.087 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 654.8

Radius: 8.9

Gravity: 8.27 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 2.93 AU - 4.11 AU

Year: 4264 Days

Day: 11.4 Hours

Environment

Temp: -208 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 94,452,716 km

• M1: 110,702 km (0.11 R)
• M2: 394,340 km (0.108 R)
• M3: 676,930 km (0.029 R)
• M4: 1,025,194 km (0.042 R)
• M5: 1,933,253 km (0.087 R)
• M6: 2,426,627 km (0.085 R)
• M7: 4,121,721 km (0.117 R)
• M8: 5,581,796 km (0.088 R)
• M9: 8,267,227 km (0.098 R)
• M10: 9,524,896 km (0.105 R)
• M11: 10,012,436 km (0.1 R)
• M12: 10,431,310 km (0.109 R)
• M13: 11,621,062 km (0.104 R)
• M14: 12,083,918 km (0.104 R)
• M15: 12,947,995 km (0.089 R)
• M16: 14,007,447 km (0.069 R)
• M17: 15,178,200 km (0.029 R)
• M18: 15,675,463 km (0.047 R)
• M19: 16,819,588 km (0.092 R)
• M20: 19,856,275 km (0.03 R)
• M21: 22,096,054 km (0.114 R)
• M22: 24,423,797 km (0.056 R)
• M23: 25,646,909 km (0.097 R)
• M24: 26,750,044 km (0.095 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 646.7

Radius: 7.2

Gravity: 12.47 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 6.23 AU - 6.31 AU

Year: 10137 Days

Day: 24.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 103.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 94,452,716 km

• M1: 92,003 km (0.075 R)
• M2: 356,641 km (0.112 R)
• M3: 752,477 km (0.091 R)
• M4: 1,220,868 km (0.083 R)
• M5: 1,934,600 km (0.107 R)
• M6: 2,547,353 km (0.106 R)
• M7: 2,920,599 km (0.11 R)
• M8: 3,401,706 km (0.094 R)
• M9: 3,751,017 km (0.082 R)
• M10: 4,151,640 km (0.049 R)
• M11: 4,434,230 km (0.033 R)
• M12: 4,975,476 km (0.104 R)
• M13: 5,294,717 km (0.078 R)
• M14: 5,764,604 km (0.084 R)
• M15: 6,942,987 km (0.111 R)
• M16: 10,166,970 km (0.086 R)
• M17: 11,268,310 km (0.094 R)
• M18: 12,680,514 km (0.063 R)
• M19: 15,047,451 km (0.112 R)
• M20: 15,648,386 km (0.055 R)
• M21: 16,334,592 km (0.039 R)
• M22: 19,437,700 km (0.113 R)
• M23: 19,910,878 km (0.113 R)
• M24: 21,627,663 km (0.115 R)
• M25: 24,704,293 km (0.118 R)
• M26: 25,728,590 km (0.064 R)
• M27: 28,665,346 km (0.111 R)
• M28: 30,319,449 km (0.099 R)
• M29: 35,780,071 km (0.108 R)
• M30: 37,089,950 km (0.097 R)
• M31: 38,803,144 km (0.115 R)
• M32: 41,992,272 km (0.072 R)
• M33: 42,518,258 km (0.055 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 772.7

Radius: 5.8

Gravity: 22.97 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 5.74 AU - 8.78 AU

Year: 12630 Days

Day: 24 Hours

Environment

Temp: -221 °C

Axial Tilt: 129.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 94,452,716 km

• M1: 74,649 km (0.074 R)
• M2: 328,966 km (0.051 R)
• M3: 837,598 km (0.045 R)
• M4: 1,613,114 km (0.116 R)
• M5: 2,340,608 km (0.106 R)
• M6: 3,167,436 km (0.098 R)
• M7: 3,447,184 km (0.094 R)
• M8: 4,510,675 km (0.075 R)
• M9: 5,449,402 km (0.095 R)
• M10: 6,273,387 km (0.062 R)
• M11: 7,091,986 km (0.085 R)
• M12: 8,259,747 km (0.04 R)
• M13: 10,912,865 km (0.066 R)
• M14: 11,970,672 km (0.095 R)
• M15: 13,354,452 km (0.081 R)
• M16: 16,661,463 km (0.102 R)
• M17: 17,273,917 km (0.096 R)
• M18: 17,822,043 km (0.083 R)
• M19: 18,300,906 km (0.052 R)
• M20: 19,201,335 km (0.103 R)
• M21: 19,451,912 km (0.091 R)
• M22: 21,625,868 km (0.041 R)
• M23: 23,099,108 km (0.031 R)
• M24: 23,382,596 km (0.094 R)
• M25: 25,232,374 km (0.098 R)
• M26: 27,072,727 km (0.06 R)
• M27: 31,132,813 km (0.108 R)
• M28: 31,594,771 km (0.096 R)
• M29: 35,205,465 km (0.111 R)
• M30: 41,539,290 km (0.059 R)
• M31: 44,534,089 km (0.119 R)
• M32: 50,313,354 km (0.053 R)
• M33: 51,109,065 km (0.071 R)
• M34: 54,043,428 km (0.118 R)
• M35: 56,572,978 km (0.099 R)

Planet 10 - Ice Giant

Semi-Major Axis: 11.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 871.3

Radius: 5.7

Gravity: 26.82 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 8.7 AU - 13.9 AU

Year: 24526 Days

Day: 22.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 94,452,716 km

• M1: 71,657 km (0.092 R)
• M2: 358,586 km (0.116 R)
• M3: 792,420 km (0.112 R)
• M4: 1,264,700 km (0.116 R)
• M5: 1,545,645 km (0.077 R)
• M6: 2,828,597 km (0.098 R)
• M7: 4,774,566 km (0.053 R)
• M8: 5,331,967 km (0.112 R)
• M9: 5,712,694 km (0.103 R)
• M10: 8,110,748 km (0.115 R)
• M11: 20,867,856 km (0.108 R)
• M12: 23,113,320 km (0.081 R)
• M13: 30,142,026 km (0.037 R)
• M14: 33,142,511 km (0.078 R)
• M15: 48,757,686 km (0.097 R)
• M16: 56,011,388 km (0.083 R)
• M17: 61,580,916 km (0.091 R)
• M18: 63,516,414 km (0.118 R)
• M19: 70,726,433 km (0.093 R)
• M20: 81,247,352 km (0.112 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: 200 - 11,680 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit