🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.61

Radius: 0.82

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.54 AU - 0.58 AU

Year: 266 Days

Day: 22 Hours

Environment

Temp: -128 °C

Axial Tilt: 1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.55

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.5 AU - 0.84 AU

Year: 349 Days

Day: 27.6 Hours

Environment

Temp: -138 °C

Axial Tilt: 28.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 78,526,590 km

• M1: 42,785 km (0.049 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 640.9

Radius: 11.3

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.61 AU - 0.79 AU

Year: 372 Days

Day: 9.5 Hours

Environment

Temp: -141 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 78,526,590 km

• M1: 141,370 km (0.063 R)
• M2: 512,074 km (0.057 R)
• M3: 932,743 km (0.091 R)
• M4: 1,295,218 km (0.075 R)
• M5: 1,754,334 km (0.113 R)
• M6: 2,252,645 km (0.1 R)
• M7: 2,648,780 km (0.045 R)
• M8: 3,536,942 km (0.118 R)
• M9: 4,884,819 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331.8

Radius: 8

Gravity: 5.18 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 0.97 AU - 0.99 AU

Year: 617 Days

Day: 11.9 Hours

Environment

Temp: -157 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 78,526,590 km

• M1: 102,175 km (0.114 R)
• M2: 458,218 km (0.115 R)
• M3: 766,839 km (0.045 R)
• M4: 1,087,128 km (0.052 R)
• M5: 1,530,386 km (0.082 R)
• M6: 1,892,114 km (0.06 R)
• M7: 2,459,688 km (0.062 R)
• M8: 2,809,598 km (0.066 R)
• M9: 3,622,512 km (0.093 R)
• M10: 4,569,018 km (0.048 R)
• M11: 5,210,943 km (0.089 R)

Asteroid Belt

Center: 2.1 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 200.7

Radius: 9.4

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 2.73 AU - 3.69 AU

Year: 3657 Days

Day: 6.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 78,526,590 km

• M1: 118,631 km (0.108 R)
• M2: 435,031 km (0.085 R)
• M3: 769,083 km (0.077 R)
• M4: 1,128,267 km (0.092 R)
• M5: 1,619,397 km (0.067 R)
• M6: 2,690,368 km (0.098 R)
• M7: 3,110,140 km (0.11 R)
• M8: 3,858,129 km (0.104 R)
• M9: 4,514,714 km (0.039 R)
• M10: 4,956,327 km (0.092 R)
• M11: 7,017,786 km (0.113 R)
• M12: 7,553,346 km (0.108 R)
• M13: 9,291,973 km (0.083 R)
• M14: 10,505,361 km (0.102 R)
• M15: 11,821,224 km (0.051 R)
• M16: 12,296,646 km (0.049 R)
• M17: 12,992,126 km (0.118 R)
• M18: 13,455,880 km (0.068 R)
• M19: 14,822,606 km (0.078 R)
• M20: 15,236,244 km (0.08 R)
• M21: 15,847,202 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.9

Radius: 8.2

Gravity: 5.25 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 3.69 AU - 4.31 AU

Year: 5087 Days

Day: 12.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 78,526,590 km

• M1: 102,175 km (0.057 R)
• M2: 402,568 km (0.067 R)
• M3: 849,716 km (0.104 R)
• M4: 1,192,893 km (0.071 R)
• M5: 1,559,558 km (0.055 R)
• M6: 2,988,217 km (0.069 R)
• M7: 3,773,307 km (0.093 R)
• M8: 4,983,554 km (0.037 R)
• M9: 5,997,977 km (0.108 R)
• M10: 6,257,230 km (0.104 R)
• M11: 6,922,641 km (0.115 R)
• M12: 9,626,473 km (0.038 R)
• M13: 11,147,136 km (0.08 R)
• M14: 11,987,427 km (0.112 R)
• M15: 13,204,705 km (0.115 R)
• M16: 18,476,384 km (0.119 R)
• M17: 18,780,965 km (0.057 R)
• M18: 23,192,008 km (0.119 R)
• M19: 24,121,161 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 857.8

Radius: 14.7

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 4.07 AU - 5.03 AU

Year: 6171 Days

Day: 11.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 78,526,590 km

• M1: 202,556 km (0.112 R)
• M2: 940,971 km (0.114 R)
• M3: 1,571,376 km (0.06 R)
• M4: 3,953,872 km (0.048 R)
• M5: 4,513,667 km (0.087 R)
• M6: 5,184,464 km (0.086 R)
• M7: 6,692,261 km (0.106 R)
• M8: 7,267,315 km (0.038 R)
• M9: 9,193,836 km (0.099 R)
• M10: 11,542,074 km (0.105 R)
• M11: 14,442,777 km (0.102 R)
• M12: 17,867,222 km (0.078 R)
• M13: 19,262,820 km (0.074 R)
• M14: 20,060,626 km (0.092 R)
• M15: 23,149,373 km (0.106 R)
• M16: 27,349,333 km (0.092 R)
• M17: 35,904,985 km (0.095 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.6

Radius: 10.6

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 4.62 AU - 6.7 AU

Year: 8562 Days

Day: 10.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 78,526,590 km

• M1: 131,796 km (0.056 R)
• M2: 654,939 km (0.072 R)
• M3: 1,378,844 km (0.063 R)
• M4: 1,937,891 km (0.076 R)
• M5: 2,460,287 km (0.076 R)
• M6: 3,112,982 km (0.118 R)
• M7: 4,104,367 km (0.035 R)
• M8: 4,660,722 km (0.057 R)
• M9: 5,321,944 km (0.119 R)
• M10: 6,508,555 km (0.06 R)
• M11: 7,936,017 km (0.115 R)
• M12: 8,957,621 km (0.109 R)
• M13: 9,357,646 km (0.103 R)
• M14: 9,769,339 km (0.069 R)
• M15: 11,585,906 km (0.076 R)
• M16: 12,013,008 km (0.093 R)
• M17: 12,748,282 km (0.106 R)
• M18: 13,409,504 km (0.039 R)
• M19: 15,416,958 km (0.105 R)
• M20: 16,942,557 km (0.098 R)
• M21: 18,501,965 km (0.092 R)
• M22: 19,816,781 km (0.108 R)
• M23: 22,338,702 km (0.105 R)
• M24: 24,211,219 km (0.093 R)
• M25: 26,267,441 km (0.094 R)
• M26: 26,922,830 km (0.096 R)
• M27: 28,695,116 km (0.108 R)
• M28: 29,215,567 km (0.084 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 575.3

Radius: 3.2

Gravity: 56.18 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 8.52 AU - 13.28 AU

Year: 22881 Days

Day: 22.3 Hours

Environment

Temp: -236 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 78,526,590 km

• M1: 39,793 km (0.086 R)
• M2: 156,031 km (0.099 R)
• M3: 373,546 km (0.095 R)
• M4: 809,025 km (0.042 R)
• M5: 1,419,235 km (0.077 R)
• M6: 1,672,055 km (0.119 R)
• M7: 1,781,262 km (0.094 R)
• M8: 2,034,381 km (0.059 R)
• M9: 2,310,838 km (0.118 R)
• M10: 2,423,486 km (0.061 R)
• M11: 5,813,224 km (0.119 R)
• M12: 7,432,920 km (0.082 R)
• M13: 8,136,628 km (0.099 R)
• M14: 11,075,628 km (0.113 R)
• M15: 11,203,534 km (0.079 R)
• M16: 13,384,970 km (0.099 R)
• M17: 14,120,842 km (0.087 R)
• M18: 18,655,004 km (0.116 R)
• M19: 19,018,228 km (0.08 R)
• M20: 22,502,063 km (0.092 R)
• M21: 29,949,344 km (0.094 R)
• M22: 33,151,487 km (0.112 R)
• M23: 33,952,434 km (0.095 R)
• M24: 35,178,089 km (0.044 R)
• M25: 35,593,073 km (0.07 R)
• M26: 36,011,349 km (0.072 R)
• M27: 39,924,381 km (0.117 R)
• M28: 40,225,072 km (0.06 R)
• M29: 40,678,803 km (0.027 R)
• M30: 40,830,794 km (0.066 R)
• M31: 42,684,760 km (0.111 R)
• M32: 45,733,415 km (0.099 R)
• M33: 46,559,196 km (0.09 R)
• M34: 53,708,927 km (0.108 R)
• M35: 54,075,292 km (0.073 R)
• M36: 56,876,063 km (0.118 R)
• M37: 60,560,659 km (0.099 R)
• M38: 61,957,155 km (0.117 R)
• M39: 63,171,142 km (0.09 R)
• M40: 64,194,989 km (0.056 R)
• M41: 69,046,748 km (0.073 R)
• M42: 70,790,012 km (0.098 R)
• M43: 72,785,946 km (0.104 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: 375 - 11,957 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit