🌌 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 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 742.5

Radius: 9.2

Gravity: 8.77 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.44 AU - 0.58 AU

Year: 256 Days

Day: 12.5 Hours

Environment

Temp: -145 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,056,887 km

• M1: 114,742 km (0.068 R)
• M2: 511,774 km (0.032 R)
• M3: 865,124 km (0.064 R)
• M4: 1,429,108 km (0.111 R)
• M5: 1,920,089 km (0.088 R)
• M6: 2,221,828 km (0.073 R)
• M7: 2,846,099 km (0.082 R)
• M8: 3,462,592 km (0.078 R)
• M9: 3,774,354 km (0.108 R)
• M10: 4,068,314 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 728.2

Radius: 13.2

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.6 AU - 0.6 AU

Year: 327 Days

Day: 6.3 Hours

Environment

Temp: -154 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,056,887 km

• M1: 164,258 km (0.104 R)
• M2: 613,650 km (0.096 R)
• M3: 1,059,602 km (0.081 R)
• M4: 1,554,172 km (0.096 R)
• M5: 2,091,827 km (0.111 R)
• M6: 2,584,453 km (0.065 R)
• M7: 3,029,955 km (0.075 R)
• M8: 3,549,808 km (0.066 R)
• M9: 3,966,139 km (0.108 R)
• M10: 4,756,913 km (0.065 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.1

Radius: 14.9

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.67 AU - 0.69 AU

Year: 394 Days

Day: 11 Hours

Environment

Temp: -153 °C

Axial Tilt: 71.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 66,056,887 km

• M1: 185,501 km (0.031 R)
• M2: 803,041 km (0.1 R)
• M3: 1,435,691 km (0.104 R)
• M4: 2,238,283 km (0.064 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260.3

Radius: 8.9

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.31 AU - 1.49 AU

Year: 1164 Days

Day: 13.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,056,887 km

• M1: 111,450 km (0.028 R)
• M2: 507,885 km (0.078 R)
• M3: 1,679,685 km (0.1 R)
• M4: 1,982,920 km (0.103 R)
• M5: 2,416,454 km (0.106 R)
• M6: 2,829,045 km (0.094 R)
• M7: 3,288,161 km (0.086 R)
• M8: 4,419,420 km (0.108 R)
• M9: 5,251,783 km (0.114 R)
• M10: 5,791,532 km (0.087 R)
• M11: 6,471,005 km (0.097 R)
• M12: 7,727,927 km (0.058 R)
• M13: 8,060,184 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 645.6

Radius: 13.9

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.43 AU - 1.47 AU

Year: 1227 Days

Day: 9.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 66,056,887 km

• M1: 172,935 km (0.098 R)
• M2: 618,288 km (0.069 R)
• M3: 1,094,608 km (0.051 R)
• M4: 1,534,575 km (0.1 R)
• M5: 2,642,497 km (0.11 R)
• M6: 3,341,867 km (0.097 R)
• M7: 4,128,303 km (0.108 R)
• M8: 4,805,981 km (0.08 R)
• M9: 5,682,625 km (0.116 R)
• M10: 6,181,833 km (0.054 R)
• M11: 7,319,076 km (0.093 R)
• M12: 7,858,675 km (0.115 R)
• M13: 8,397,228 km (0.101 R)
• M14: 9,548,682 km (0.064 R)
• M15: 10,257,028 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 239

Radius: 14.2

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 1.91 AU - 3.03 AU

Year: 2729 Days

Day: 8.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 66,056,887 km

• M1: 176,525 km (0.101 R)
• M2: 777,610 km (0.083 R)
• M3: 1,370,765 km (0.077 R)
• M4: 1,877,004 km (0.079 R)
• M5: 2,408,825 km (0.087 R)
• M6: 2,897,860 km (0.105 R)
• M7: 3,817,438 km (0.073 R)
• M8: 5,109,964 km (0.112 R)
• M9: 5,585,685 km (0.092 R)
• M10: 6,702,433 km (0.057 R)
• M11: 7,300,974 km (0.063 R)
• M12: 7,766,074 km (0.112 R)
• M13: 8,515,709 km (0.112 R)
• M14: 9,730,593 km (0.091 R)
• M15: 10,811,139 km (0.086 R)
• M16: 11,489,715 km (0.043 R)
• M17: 12,158,717 km (0.098 R)
• M18: 13,011,574 km (0.046 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 700.3

Radius: 9.5

Gravity: 7.76 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 2.24 AU - 3.28 AU

Year: 3223 Days

Day: 9.7 Hours

Environment

Temp: -210 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 66,056,887 km

• M1: 118,182 km (0.08 R)
• M2: 1,357,152 km (0.115 R)
• M3: 1,708,856 km (0.089 R)
• M4: 2,107,984 km (0.089 R)
• M5: 3,113,580 km (0.068 R)
• M6: 3,813,998 km (0.1 R)
• M7: 4,322,032 km (0.082 R)
• M8: 4,995,671 km (0.111 R)
• M9: 7,963,543 km (0.093 R)
• M10: 11,125,145 km (0.1 R)
• M11: 12,118,774 km (0.084 R)
• M12: 16,361,370 km (0.119 R)
• M13: 19,295,881 km (0.109 R)
• M14: 19,847,897 km (0.058 R)
• M15: 20,284,424 km (0.052 R)
• M16: 20,791,112 km (0.061 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 517.3

Radius: 12.5

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 4.25 AU - 6.61 AU

Year: 8894 Days

Day: 5.8 Hours

Environment

Temp: -215 °C

Axial Tilt: 87.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,056,887 km

• M1: 155,432 km (0.1 R)
• M2: 862,282 km (0.064 R)
• M3: 1,353,412 km (0.063 R)
• M4: 1,749,996 km (0.108 R)
• M5: 2,729,114 km (0.1 R)
• M6: 3,308,357 km (0.091 R)
• M7: 4,357,337 km (0.089 R)
• M8: 6,737,290 km (0.086 R)
• M9: 8,042,382 km (0.099 R)
• M10: 11,404,444 km (0.084 R)
• M11: 11,981,593 km (0.104 R)
• M12: 13,948,954 km (0.113 R)
• M13: 16,985,492 km (0.084 R)
• M14: 17,531,225 km (0.035 R)
• M15: 22,572,524 km (0.089 R)
• M16: 23,149,523 km (0.029 R)
• M17: 25,644,815 km (0.066 R)
• M18: 39,412,307 km (0.051 R)
• M19: 40,369,733 km (0.084 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 639.2

Radius: 4.8

Gravity: 27.74 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 8.05 AU - 8.51 AU

Year: 16748 Days

Day: 20.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 66,056,887 km

• M1: 116,238 km (0.107 R)
• M2: 484,398 km (0.114 R)
• M3: 743,501 km (0.045 R)
• M4: 905,366 km (0.104 R)
• M5: 1,652,757 km (0.105 R)
• M6: 3,138,863 km (0.06 R)
• M7: 4,509,179 km (0.085 R)
• M8: 5,567,434 km (0.104 R)
• M9: 6,358,657 km (0.093 R)
• M10: 7,729,572 km (0.111 R)
• M11: 8,064,372 km (0.105 R)
• M12: 9,232,732 km (0.116 R)
• M13: 10,109,375 km (0.112 R)
• M14: 12,026,472 km (0.043 R)
• M15: 14,315,020 km (0.062 R)
• M16: 14,602,099 km (0.117 R)
• M17: 15,411,124 km (0.046 R)
• M18: 17,118,335 km (0.089 R)
• M19: 19,033,636 km (0.096 R)
• M20: 23,981,436 km (0.105 R)
• M21: 30,780,360 km (0.107 R)
• M22: 33,345,964 km (0.091 R)
• M23: 38,482,107 km (0.077 R)
• M24: 39,737,982 km (0.096 R)
• M25: 40,020,722 km (0.115 R)
• M26: 48,654,314 km (0.112 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 203 - 13,123 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit