🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.3

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.54 AU - 0.6 AU

Year: 282 Days

Day: 36.8 Hours

Environment

Temp: -119 °C

Axial Tilt: 44.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 205.6

Radius: 9.1

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.9 AU - 0.96 AU

Year: 588 Days

Day: 13.5 Hours

Environment

Temp: -160 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 55,553,770 km

• M1: 113,246 km (0.067 R)
• M2: 553,961 km (0.092 R)
• M3: 919,429 km (0.065 R)
• M4: 1,287,589 km (0.109 R)
• M5: 2,873,625 km (0.089 R)
• M6: 3,311,498 km (0.116 R)
• M7: 4,644,565 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 491.7

Radius: 9.2

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.02 AU - 1.08 AU

Year: 706 Days

Day: 6.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 55,553,770 km

• M1: 114,442 km (0.087 R)
• M2: 491,878 km (0.102 R)
• M3: 844,630 km (0.08 R)
• M4: 1,566,439 km (0.109 R)
• M5: 1,935,796 km (0.105 R)
• M6: 2,373,221 km (0.057 R)
• M7: 2,898,309 km (0.088 R)
• M8: 3,382,857 km (0.105 R)
• M9: 3,977,508 km (0.114 R)
• M10: 4,375,887 km (0.037 R)
• M11: 5,184,015 km (0.115 R)
• M12: 5,880,842 km (0.075 R)
• M13: 7,308,305 km (0.064 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 213.2

Radius: 13.4

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 1.18 AU - 1.4 AU

Year: 961 Days

Day: 6.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,553,770 km

• M1: 166,652 km (0.086 R)
• M2: 684,261 km (0.098 R)
• M3: 1,463,965 km (0.115 R)
• M4: 2,248,157 km (0.104 R)
• M5: 2,893,971 km (0.064 R)
• M6: 3,395,423 km (0.103 R)
• M7: 4,107,658 km (0.095 R)
• M8: 4,636,487 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 157.6

Radius: 11.5

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.47 AU - 1.75 AU

Year: 1340 Days

Day: 13.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 55,553,770 km

• M1: 146,157 km (0.064 R)
• M2: 682,615 km (0.106 R)
• M3: 1,311,973 km (0.083 R)
• M4: 1,959,583 km (0.114 R)
• M5: 2,413,313 km (0.104 R)
• M6: 2,833,384 km (0.12 R)
• M7: 3,365,952 km (0.091 R)
• M8: 3,725,286 km (0.106 R)
• M9: 4,366,313 km (0.102 R)
• M10: 5,322,393 km (0.109 R)
• M11: 6,863,401 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 615

Radius: 14.8

Gravity: 2.81 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 2.52 AU - 3.38 AU

Year: 3324 Days

Day: 6.4 Hours

Environment

Temp: -205 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,553,770 km

• M1: 184,005 km (0.073 R)
• M2: 698,772 km (0.119 R)
• M3: 1,254,079 km (0.088 R)
• M4: 1,722,919 km (0.035 R)
• M5: 2,678,849 km (0.102 R)
• M6: 3,386,297 km (0.097 R)
• M7: 4,152,837 km (0.03 R)
• M8: 5,402,877 km (0.107 R)
• M9: 6,367,484 km (0.089 R)
• M10: 7,072,389 km (0.076 R)
• M11: 7,570,849 km (0.086 R)
• M12: 11,157,009 km (0.051 R)
• M13: 13,086,822 km (0.074 R)
• M14: 13,937,286 km (0.11 R)
• M15: 15,333,183 km (0.076 R)
• M16: 16,118,423 km (0.055 R)
• M17: 19,957,702 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 941.8

Radius: 9.7

Gravity: 10.01 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 3.25 AU - 3.85 AU

Year: 4388 Days

Day: 5.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 46.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 55,553,770 km

• M1: 120,875 km (0.062 R)
• M2: 498,460 km (0.063 R)
• M3: 860,637 km (0.073 R)
• M4: 1,163,273 km (0.096 R)
• M5: 1,539,063 km (0.061 R)
• M6: 2,009,997 km (0.077 R)
• M7: 2,970,415 km (0.086 R)
• M8: 4,788,777 km (0.032 R)
• M9: 5,138,088 km (0.116 R)
• M10: 7,251,458 km (0.081 R)
• M11: 8,735,319 km (0.113 R)
• M12: 9,299,602 km (0.086 R)
• M13: 10,323,450 km (0.088 R)
• M14: 11,373,328 km (0.097 R)
• M15: 14,390,567 km (0.114 R)
• M16: 15,582,413 km (0.086 R)
• M17: 18,161,182 km (0.058 R)
• M18: 19,214,351 km (0.095 R)
• M19: 19,619,761 km (0.114 R)
• M20: 26,737,927 km (0.112 R)
• M21: 28,709,776 km (0.112 R)
• M22: 29,062,378 km (0.108 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.6

Radius: 14.4

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 3.73 AU - 5.17 AU

Year: 6158 Days

Day: 13.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 55,553,770 km

• M1: 179,966 km (0.076 R)
• M2: 721,361 km (0.101 R)
• M3: 1,721,124 km (0.102 R)
• M4: 2,780,725 km (0.094 R)
• M5: 3,456,309 km (0.085 R)
• M6: 4,648,305 km (0.101 R)
• M7: 5,195,983 km (0.055 R)
• M8: 6,324,100 km (0.084 R)
• M9: 7,909,389 km (0.047 R)
• M10: 11,024,316 km (0.039 R)
• M11: 12,155,575 km (0.047 R)
• M12: 12,723,449 km (0.088 R)
• M13: 13,912,153 km (0.077 R)
• M14: 14,591,178 km (0.05 R)
• M15: 17,015,411 km (0.099 R)
• M16: 17,726,749 km (0.108 R)
• M17: 18,525,303 km (0.113 R)
• M18: 19,767,863 km (0.085 R)
• M19: 20,337,681 km (0.096 R)
• M20: 21,139,077 km (0.116 R)
• M21: 24,557,089 km (0.04 R)
• M22: 25,717,669 km (0.102 R)
• M23: 26,655,049 km (0.105 R)
• M24: 29,052,505 km (0.095 R)
• M25: 30,918,738 km (0.03 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 542.8

Radius: 7.7

Gravity: 9.16 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 6.17 AU - 9.23 AU

Year: 14017 Days

Day: 24.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 55,553,770 km

• M1: 95,743 km (0.108 R)
• M2: 430,094 km (0.112 R)
• M3: 872,006 km (0.116 R)
• M4: 1,199,476 km (0.081 R)
• M5: 1,700,479 km (0.12 R)
• M6: 1,982,022 km (0.075 R)
• M7: 2,597,917 km (0.104 R)
• M8: 4,660,722 km (0.071 R)
• M9: 7,069,696 km (0.113 R)
• M10: 7,323,265 km (0.087 R)
• M11: 7,893,532 km (0.1 R)
• M12: 8,974,825 km (0.114 R)
• M13: 9,887,372 km (0.1 R)
• M14: 10,804,706 km (0.109 R)
• M15: 11,255,594 km (0.075 R)
• M16: 12,315,794 km (0.051 R)
• M17: 15,537,833 km (0.111 R)
• M18: 15,895,223 km (0.083 R)
• M19: 17,227,541 km (0.09 R)
• M20: 18,473,093 km (0.116 R)
• M21: 19,281,370 km (0.076 R)
• M22: 21,404,912 km (0.064 R)
• M23: 23,398,603 km (0.115 R)
• M24: 27,025,454 km (0.103 R)
• M25: 30,007,238 km (0.086 R)
• M26: 34,636,993 km (0.061 R)
• M27: 38,928,956 km (0.041 R)
• M28: 39,854,518 km (0.076 R)
• M29: 40,524,717 km (0.064 R)
• M30: 43,845,939 km (0.102 R)
• M31: 44,130,624 km (0.1 R)
• M32: 47,494,033 km (0.073 R)
• M33: 50,398,326 km (0.09 R)
• M34: 51,181,920 km (0.066 R)
• M35: 51,497,571 km (0.07 R)
• M36: 51,973,442 km (0.077 R)
• M37: 54,397,227 km (0.115 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 510 - 20,116 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit