🌌 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 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.13

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.42 AU - 0.6 AU

Year: 232 Days

Day: 37.5 Hours

Environment

Temp: -107 °C

Axial Tilt: 60.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 210.5

Radius: 9.5

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.81 AU - 1.03 AU

Year: 561 Days

Day: 8.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 82,461,268 km

• M1: 145,110 km (0.088 R)
• M2: 467,942 km (0.036 R)
• M3: 1,053,019 km (0.104 R)
• M4: 1,751,641 km (0.083 R)
• M5: 2,123,392 km (0.061 R)
• M6: 2,761,128 km (0.089 R)
• M7: 3,578,531 km (0.104 R)
• M8: 4,363,022 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 689.7

Radius: 12.3

Gravity: 4.56 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.98 AU - 1.48 AU

Year: 867 Days

Day: 10.1 Hours

Environment

Temp: -179 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 82,461,268 km

• M1: 175,179 km (0.052 R)
• M2: 588,668 km (0.074 R)
• M3: 1,008,140 km (0.056 R)
• M4: 1,523,804 km (0.046 R)
• M5: 2,074,324 km (0.082 R)
• M6: 2,603,452 km (0.118 R)
• M7: 3,235,054 km (0.051 R)
• M8: 4,202,055 km (0.067 R)
• M9: 4,876,591 km (0.034 R)
• M10: 5,981,820 km (0.063 R)
• M11: 6,442,283 km (0.11 R)
• M12: 6,971,560 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 186.5

Radius: 11.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 2.86 AU - 3.14 AU

Year: 3304 Days

Day: 9.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 82,461,268 km

• M1: 146,905 km (0.113 R)
• M2: 1,504,207 km (0.115 R)
• M3: 3,467,080 km (0.113 R)
• M4: 4,647,707 km (0.12 R)
• M5: 5,297,709 km (0.117 R)
• M6: 5,795,122 km (0.118 R)
• M7: 7,988,078 km (0.037 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 255.4

Radius: 14.1

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 2.64 AU - 3.74 AU

Year: 3623 Days

Day: 14.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 82,461,268 km

• M1: 175,329 km (0.111 R)
• M2: 1,127,669 km (0.115 R)
• M3: 2,012,091 km (0.078 R)
• M4: 3,063,016 km (0.069 R)
• M5: 5,302,497 km (0.103 R)
• M6: 9,399,234 km (0.117 R)
• M7: 10,759,228 km (0.071 R)
• M8: 12,785,980 km (0.06 R)
• M9: 14,407,921 km (0.085 R)
• M10: 16,561,083 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 758.4

Radius: 8.6

Gravity: 10.25 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 3.34 AU - 4.38 AU

Year: 4822 Days

Day: 9.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 82,461,268 km

• M1: 112,348 km (0.061 R)
• M2: 628,760 km (0.116 R)
• M3: 1,748,051 km (0.085 R)
• M4: 2,247,409 km (0.051 R)
• M5: 4,161,214 km (0.079 R)
• M6: 6,004,709 km (0.069 R)
• M7: 6,315,573 km (0.076 R)
• M8: 8,298,194 km (0.098 R)
• M9: 13,603,682 km (0.114 R)
• M10: 15,374,024 km (0.07 R)
• M11: 17,732,883 km (0.105 R)
• M12: 18,116,003 km (0.09 R)
• M13: 20,883,863 km (0.03 R)
• M14: 28,968,132 km (0.1 R)
• M15: 29,768,031 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 899.5

Radius: 10.4

Gravity: 8.32 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 3.81 AU - 4.63 AU

Year: 5512 Days

Day: 6.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 82,461,268 km

• M1: 143,614 km (0.1 R)
• M2: 498,610 km (0.078 R)
• M3: 1,050,327 km (0.065 R)
• M4: 1,404,275 km (0.057 R)
• M5: 2,534,637 km (0.077 R)
• M6: 3,124,202 km (0.083 R)
• M7: 3,529,163 km (0.103 R)
• M8: 3,944,896 km (0.119 R)
• M9: 4,987,593 km (0.105 R)
• M10: 6,988,913 km (0.076 R)
• M11: 8,109,252 km (0.092 R)
• M12: 8,548,770 km (0.114 R)
• M13: 9,519,361 km (0.116 R)
• M14: 13,918,735 km (0.114 R)
• M15: 14,318,012 km (0.034 R)
• M16: 15,080,064 km (0.099 R)
• M17: 15,868,893 km (0.1 R)
• M18: 16,685,099 km (0.105 R)
• M19: 17,331,661 km (0.116 R)
• M20: 18,675,050 km (0.093 R)
• M21: 19,231,405 km (0.116 R)
• M22: 19,655,963 km (0.118 R)
• M23: 22,804,550 km (0.071 R)
• M24: 23,762,575 km (0.11 R)
• M25: 27,327,342 km (0.05 R)
• M26: 28,499,292 km (0.093 R)
• M27: 31,722,378 km (0.118 R)
• M28: 34,035,760 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 663.1

Radius: 7.7

Gravity: 11.18 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 7.51 AU - 10.45 AU

Year: 17110 Days

Day: 19.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 82,461,268 km

• M1: 109,655 km (0.11 R)
• M2: 378,483 km (0.113 R)
• M3: 1,020,407 km (0.084 R)
• M4: 1,799,513 km (0.092 R)
• M5: 2,172,759 km (0.078 R)
• M6: 2,829,045 km (0.095 R)
• M7: 4,334,000 km (0.103 R)
• M8: 4,937,029 km (0.108 R)
• M9: 5,186,109 km (0.103 R)
• M10: 6,309,440 km (0.039 R)
• M11: 8,311,209 km (0.101 R)
• M12: 9,953,345 km (0.103 R)
• M13: 10,702,531 km (0.095 R)
• M14: 11,303,914 km (0.071 R)
• M15: 16,238,998 km (0.109 R)
• M16: 21,206,545 km (0.089 R)
• M17: 23,130,374 km (0.095 R)
• M18: 24,338,975 km (0.111 R)
• M19: 29,829,965 km (0.106 R)
• M20: 37,716,765 km (0.096 R)
• M21: 40,242,725 km (0.112 R)
• M22: 43,631,565 km (0.069 R)
• M23: 54,228,331 km (0.039 R)
• M24: 58,353,791 km (0.1 R)
• M25: 59,092,057 km (0.088 R)
• M26: 64,434,944 km (0.074 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 690.6

Radius: 3.7

Gravity: 50.45 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 8.9 AU - 12.64 AU

Year: 22473 Days

Day: 23.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 49 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 82,461,268 km

• M1: 48,769 km (0.032 R)
• M2: 174,730 km (0.085 R)
• M3: 396,434 km (0.084 R)
• M4: 787,633 km (0.078 R)
• M5: 1,243,308 km (0.074 R)
• M6: 1,760,019 km (0.08 R)
• M7: 2,205,073 km (0.115 R)
• M8: 2,338,664 km (0.09 R)
• M9: 3,228,472 km (0.112 R)
• M10: 6,507,657 km (0.118 R)
• M11: 7,357,672 km (0.112 R)
• M12: 8,439,863 km (0.102 R)
• M13: 9,390,258 km (0.071 R)
• M14: 10,978,539 km (0.102 R)
• M15: 11,107,642 km (0.089 R)
• M16: 13,907,964 km (0.099 R)
• M17: 14,135,204 km (0.11 R)
• M18: 15,308,799 km (0.096 R)
• M19: 15,795,740 km (0.085 R)
• M20: 18,116,003 km (0.097 R)
• M21: 19,404,190 km (0.071 R)
• M22: 23,847,995 km (0.117 R)
• M23: 24,282,726 km (0.097 R)
• M24: 24,944,697 km (0.113 R)
• M25: 25,618,486 km (0.091 R)
• M26: 25,845,875 km (0.042 R)
• M27: 29,418,870 km (0.084 R)
• M28: 33,172,580 km (0.084 R)
• M29: 33,578,289 km (0.118 R)
• M30: 36,510,707 km (0.029 R)
• M31: 47,340,545 km (0.07 R)
• M32: 49,948,036 km (0.094 R)
• M33: 50,838,144 km (0.063 R)
• M34: 51,557,709 km (0.038 R)
• M35: 53,571,596 km (0.085 R)
• M36: 56,401,389 km (0.118 R)
• M37: 57,755,400 km (0.025 R)
• M38: 61,743,230 km (0.068 R)
• M39: 64,221,768 km (0.054 R)
• M40: 67,196,372 km (0.036 R)
• M41: 68,062,842 km (0.069 R)
• M42: 78,568,353 km (0.104 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 216 - 14,663 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit