🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.23

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.52 AU - 0.82 AU

Year: 354 Days

Day: 26.7 Hours

Environment

Temp: -135 °C

Axial Tilt: 18.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 81,691,127 km

• M1: 89,160 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 438.8

Radius: 10.5

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.75 AU - 1.11 AU

Year: 579 Days

Day: 7.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 81,691,127 km

• M1: 130,599 km (0.084 R)
• M2: 495,319 km (0.043 R)
• M3: 838,496 km (0.096 R)
• M4: 1,361,341 km (0.032 R)
• M5: 1,762,712 km (0.062 R)
• M6: 2,306,650 km (0.039 R)
• M7: 2,788,205 km (0.079 R)
• M8: 3,432,074 km (0.11 R)
• M9: 3,783,330 km (0.039 R)
• M10: 4,256,359 km (0.069 R)
• M11: 4,677,776 km (0.094 R)
• M12: 5,127,018 km (0.097 R)
• M13: 5,537,216 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 66.3

Radius: 15

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.15 AU - 1.37 AU

Year: 913 Days

Day: 12.9 Hours

Environment

Temp: -170 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 81,691,127 km

• M1: 195,375 km (0.093 R)
• M2: 727,494 km (0.097 R)
• M3: 1,685,070 km (0.093 R)
• M4: 2,319,066 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 927.5

Radius: 13.5

Gravity: 5.09 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 1.28 AU - 1.96 AU

Year: 1331 Days

Day: 12.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 81,691,127 km

• M1: 167,998 km (0.042 R)
• M2: 704,756 km (0.111 R)
• M3: 1,292,077 km (0.05 R)
• M4: 1,784,553 km (0.091 R)
• M5: 2,247,708 km (0.078 R)
• M6: 3,329,450 km (0.076 R)
• M7: 3,781,984 km (0.054 R)
• M8: 4,294,207 km (0.09 R)
• M9: 5,265,845 km (0.11 R)
• M10: 6,234,790 km (0.073 R)
• M11: 7,480,342 km (0.107 R)
• M12: 9,926,866 km (0.04 R)
• M13: 11,475,952 km (0.057 R)
• M14: 13,022,943 km (0.102 R)
• M15: 13,622,233 km (0.049 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 920.8

Radius: 13.4

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.37 AU - 1.97 AU

Year: 1393 Days

Day: 14.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 81,691,127 km

• M1: 166,652 km (0.055 R)
• M2: 657,931 km (0.106 R)
• M3: 2,074,773 km (0.085 R)
• M4: 2,517,283 km (0.082 R)
• M5: 3,037,884 km (0.119 R)
• M6: 3,990,074 km (0.077 R)
• M7: 5,048,629 km (0.075 R)
• M8: 6,190,061 km (0.099 R)
• M9: 6,682,238 km (0.107 R)
• M10: 7,147,487 km (0.08 R)
• M11: 7,886,052 km (0.046 R)
• M12: 9,104,377 km (0.045 R)
• M13: 9,873,759 km (0.089 R)
• M14: 10,860,805 km (0.041 R)
• M15: 12,290,512 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 10.8

Radius: 13.1

Gravity: 0.06 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.34 AU - 2.18 AU

Year: 1508 Days

Day: 6.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 81,691,127 km

• M1: 163,062 km (0.098 R)
• M2: 1,284,447 km (0.113 R)
• M3: 1,773,333 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 597.5

Radius: 4.9

Gravity: 24.89 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 7.27 AU - 7.71 AU

Year: 13235 Days

Day: 22.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 81,691,127 km

• M1: 60,886 km (0.097 R)
• M2: 258,505 km (0.069 R)
• M3: 536,009 km (0.111 R)
• M4: 902,075 km (0.062 R)
• M5: 1,146,368 km (0.109 R)
• M6: 1,919,341 km (0.098 R)
• M7: 2,152,863 km (0.095 R)
• M8: 2,385,039 km (0.112 R)
• M9: 2,570,091 km (0.093 R)
• M10: 4,059,787 km (0.119 R)
• M11: 4,445,600 km (0.119 R)
• M12: 4,855,348 km (0.065 R)
• M13: 5,019,607 km (0.112 R)
• M14: 7,681,701 km (0.063 R)
• M15: 7,905,051 km (0.089 R)
• M16: 8,132,589 km (0.07 R)
• M17: 8,364,466 km (0.119 R)
• M18: 9,797,763 km (0.114 R)
• M19: 10,007,499 km (0.067 R)
• M20: 10,490,401 km (0.053 R)
• M21: 10,765,362 km (0.076 R)
• M22: 16,278,791 km (0.096 R)
• M23: 19,057,871 km (0.088 R)
• M24: 22,137,493 km (0.033 R)
• M25: 24,750,519 km (0.044 R)
• M26: 32,630,736 km (0.069 R)
• M27: 34,772,230 km (0.093 R)
• M28: 35,753,442 km (0.093 R)
• M29: 36,501,282 km (0.118 R)
• M30: 36,752,906 km (0.042 R)
• M31: 42,585,128 km (0.067 R)
• M32: 43,284,498 km (0.031 R)
• M33: 45,865,810 km (0.105 R)
• M34: 49,311,049 km (0.078 R)
• M35: 53,247,118 km (0.065 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 942.7

Radius: 4.1

Gravity: 56.08 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 8.8 AU - 10.24 AU

Year: 18966 Days

Day: 21.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 68 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 81,691,127 km

• M1: 51,013 km (0.075 R)
• M2: 226,192 km (0.112 R)
• M3: 637,885 km (0.091 R)
• M4: 3,092,936 km (0.106 R)
• M5: 3,231,613 km (0.081 R)
• M6: 3,765,528 km (0.032 R)
• M7: 4,856,695 km (0.106 R)
• M8: 7,490,515 km (0.116 R)
• M9: 9,136,241 km (0.095 R)
• M10: 13,559,850 km (0.113 R)
• M11: 14,775,782 km (0.049 R)
• M12: 17,075,251 km (0.112 R)
• M13: 23,951,517 km (0.04 R)
• M14: 37,322,425 km (0.084 R)
• M15: 52,523,962 km (0.081 R)
• M16: 59,566,581 km (0.111 R)
• M17: 64,038,660 km (0.104 R)
• M18: 70,268,513 km (0.085 R)
• M19: 70,935,122 km (0.078 R)
• M20: 71,381,821 km (0.1 R)
• M21: 72,280,904 km (0.094 R)
• M22: 75,719,860 km (0.084 R)
• M23: 80,472,584 km (0.071 R)
• M24: 81,446,466 km (0.039 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 323 - 10,763 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit