🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 17.7

Radius: 9.4

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.79 AU - 1.19 AU

Year: 668 Days

Day: 7.2 Hours

Environment

Temp: -173 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 82,321,185 km

• M1: 117,584 km (0.1 R)
• M2: 437,574 km (0.098 R)
• M3: 756,965 km (0.055 R)
• M4: 1,255,874 km (0.033 R)
• M5: 1,556,267 km (0.062 R)
• M6: 2,333,278 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 636

Radius: 8.1

Gravity: 9.69 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 2.23 AU - 3.69 AU

Year: 3454 Days

Day: 9.4 Hours

Environment

Temp: -214 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 82,321,185 km

• M1: 100,679 km (0.087 R)
• M2: 375,939 km (0.062 R)
• M3: 636,838 km (0.118 R)
• M4: 1,001,558 km (0.102 R)
• M5: 1,261,708 km (0.102 R)
• M6: 1,612,067 km (0.105 R)
• M7: 2,175,303 km (0.096 R)
• M8: 2,572,635 km (0.101 R)
• M9: 3,140,957 km (0.086 R)
• M10: 4,190,835 km (0.081 R)
• M11: 4,457,867 km (0.03 R)
• M12: 4,904,267 km (0.05 R)
• M13: 5,536,617 km (0.117 R)
• M14: 5,913,903 km (0.085 R)
• M15: 7,180,847 km (0.076 R)
• M16: 8,373,292 km (0.083 R)
• M17: 9,463,711 km (0.094 R)
• M18: 11,187,677 km (0.113 R)
• M19: 13,017,259 km (0.099 R)
• M20: 15,037,578 km (0.109 R)
• M21: 15,507,614 km (0.072 R)
• M22: 19,198,044 km (0.08 R)
• M23: 19,504,122 km (0.116 R)
• M24: 22,272,131 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 895

Radius: 11

Gravity: 7.4 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 2.66 AU - 3.66 AU

Year: 3810 Days

Day: 13.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 82,321,185 km

• M1: 136,882 km (0.061 R)
• M2: 501,602 km (0.075 R)
• M3: 1,321,847 km (0.078 R)
• M4: 1,800,111 km (0.088 R)
• M5: 3,018,287 km (0.062 R)
• M6: 3,624,158 km (0.076 R)
• M7: 4,056,945 km (0.118 R)
• M8: 4,404,012 km (0.057 R)
• M9: 5,455,834 km (0.079 R)
• M10: 5,967,459 km (0.104 R)
• M11: 8,231,772 km (0.113 R)
• M12: 8,639,576 km (0.074 R)
• M13: 9,060,844 km (0.112 R)
• M14: 9,576,358 km (0.068 R)
• M15: 11,241,083 km (0.113 R)
• M16: 13,190,942 km (0.077 R)
• M17: 17,264,342 km (0.111 R)
• M18: 17,995,577 km (0.103 R)
• M19: 18,938,642 km (0.108 R)
• M20: 22,178,483 km (0.039 R)
• M21: 22,752,191 km (0.087 R)
• M22: 23,929,376 km (0.076 R)
• M23: 24,457,008 km (0.044 R)
• M24: 25,379,428 km (0.079 R)
• M25: 26,086,428 km (0.095 R)
• M26: 26,887,225 km (0.048 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.9

Radius: 8.7

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 2.74 AU - 4.3 AU

Year: 4479 Days

Day: 12.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 82,321,185 km

• M1: 108,309 km (0.082 R)
• M2: 441,613 km (0.111 R)
• M3: 770,279 km (0.117 R)
• M4: 1,590,525 km (0.108 R)
• M5: 1,886,130 km (0.093 R)
• M6: 2,232,299 km (0.084 R)
• M7: 4,645,163 km (0.061 R)
• M8: 4,944,509 km (0.098 R)
• M9: 6,300,913 km (0.107 R)
• M10: 8,085,167 km (0.05 R)
• M11: 8,969,440 km (0.081 R)
• M12: 10,106,383 km (0.112 R)
• M13: 12,797,649 km (0.118 R)
• M14: 14,623,491 km (0.102 R)
• M15: 19,192,210 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 390.7

Radius: 10.7

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 3.65 AU - 4.75 AU

Year: 5838 Days

Day: 11.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 82,321,185 km

• M1: 133,142 km (0.096 R)
• M2: 505,641 km (0.075 R)
• M3: 849,716 km (0.053 R)
• M4: 2,701,887 km (0.095 R)
• M5: 3,404,100 km (0.119 R)
• M6: 5,090,816 km (0.077 R)
• M7: 6,750,903 km (0.12 R)
• M8: 7,479,445 km (0.112 R)
• M9: 8,669,645 km (0.117 R)
• M10: 10,191,654 km (0.1 R)
• M11: 10,707,318 km (0.104 R)
• M12: 13,449,597 km (0.059 R)
• M13: 14,070,428 km (0.09 R)
• M14: 16,048,261 km (0.117 R)
• M15: 17,956,083 km (0.079 R)
• M16: 19,417,804 km (0.108 R)
• M17: 21,721,461 km (0.045 R)
• M18: 22,217,528 km (0.103 R)
• M19: 25,431,788 km (0.117 R)
• M20: 25,982,906 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 109.2

Radius: 8.2

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 5.22 AU - 5.64 AU

Year: 8582 Days

Day: 7.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 82,321,185 km

• M1: 164,707 km (0.095 R)
• M2: 551,867 km (0.088 R)
• M3: 896,839 km (0.119 R)
• M4: 1,229,096 km (0.08 R)
• M5: 1,760,169 km (0.095 R)
• M6: 3,293,996 km (0.054 R)
• M7: 4,097,037 km (0.117 R)
• M8: 4,614,646 km (0.113 R)
• M9: 5,049,527 km (0.051 R)
• M10: 5,834,766 km (0.075 R)
• M11: 6,199,485 km (0.11 R)
• M12: 6,729,361 km (0.047 R)
• M13: 7,289,156 km (0.051 R)
• M14: 8,679,968 km (0.103 R)
• M15: 10,564,452 km (0.077 R)
• M16: 12,521,491 km (0.05 R)
• M17: 13,658,435 km (0.073 R)
• M18: 15,437,752 km (0.115 R)
• M19: 15,973,313 km (0.119 R)
• M20: 17,309,222 km (0.079 R)
• M21: 19,142,843 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 38.1

Radius: 3

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 5.19 AU - 7.55 AU

Year: 10904 Days

Day: 22.5 Hours

Environment

Temp: -238 °C

Axial Tilt: 49.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 82,321,185 km

• M1: 37,250 km (0.065 R)
• M2: 176,376 km (0.099 R)
• M3: 613,650 km (0.067 R)
• M4: 1,332,019 km (0.077 R)
• M5: 2,369,630 km (0.108 R)
• M6: 6,255,734 km (0.076 R)
• M7: 12,429,040 km (0.109 R)
• M8: 12,645,807 km (0.09 R)
• M9: 14,761,121 km (0.097 R)
• M10: 18,246,303 km (0.06 R)
• M11: 18,470,251 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 644.2

Radius: 5.8

Gravity: 19.15 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 7.91 AU - 13.18 AU

Year: 23209 Days

Day: 20.1 Hours

Environment

Temp: -241 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 82,321,185 km

• M1: 72,854 km (0.11 R)
• M2: 551,867 km (0.076 R)
• M3: 801,695 km (0.104 R)
• M4: 996,621 km (0.11 R)
• M5: 1,534,425 km (0.033 R)
• M6: 5,993,339 km (0.078 R)
• M7: 7,319,973 km (0.112 R)
• M8: 9,867,625 km (0.082 R)
• M9: 10,854,672 km (0.067 R)
• M10: 12,880,077 km (0.1 R)
• M11: 13,167,904 km (0.092 R)
• M12: 14,285,549 km (0.117 R)
• M13: 17,136,735 km (0.118 R)
• M14: 17,660,926 km (0.087 R)
• M15: 22,142,579 km (0.096 R)
• M16: 30,899,590 km (0.094 R)
• M17: 32,464,533 km (0.074 R)
• M18: 33,944,804 km (0.074 R)
• M19: 40,624,050 km (0.046 R)
• M20: 46,931,246 km (0.095 R)
• M21: 54,420,414 km (0.11 R)
• M22: 58,446,990 km (0.11 R)
• M23: 60,231,843 km (0.118 R)
• M24: 61,441,641 km (0.057 R)
• M25: 63,909,856 km (0.065 R)
• M26: 64,327,533 km (0.114 R)
• M27: 69,703,333 km (0.048 R)
• M28: 81,093,565 km (0.119 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: 413 - 18,975 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit