🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.65 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.97

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.25 AU - 1.33 AU

Year: 549 Days

Day: 24 Hours

Environment

Temp: -24 °C

Axial Tilt: 18.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 88,585,118 km

• M1: 736,171 km (0.088 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.49

Radius: 1.44

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 1.03 AU - 1.57 AU

Year: 555 Days

Day: 17.5 Hours

Environment

Temp: -24 °C

Axial Tilt: 46 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 88,585,118 km

• M1: 34,707 km (0.111 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.92

Radius: 1.54

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 1.96 AU - 3.08 AU

Year: 1499 Days

Day: 26.4 Hours

Environment

Temp: -89 °C

Axial Tilt: 27.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 88,585,118 km

• M1: 258,505 km (0.035 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.72

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 2.69 AU - 3.67 AU

Year: 2125 Days

Day: 33.6 Hours

Environment

Temp: -108 °C

Axial Tilt: 31.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.62

Radius: 0.83

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 2.74 AU - 4.1 AU

Year: 2370 Days

Day: 39.2 Hours

Environment

Temp: -127 °C

Axial Tilt: 50 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 88,585,118 km

• M1: 1,718,431 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 513.3

Radius: 12.8

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 5.17 AU - 6.69 AU

Year: 5411 Days

Day: 9.4 Hours

Environment

Temp: -159 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 88,585,118 km

• M1: 159,920 km (0.104 R)
• M2: 592,408 km (0.038 R)
• M3: 1,183,020 km (0.104 R)
• M4: 1,812,827 km (0.077 R)
• M5: 2,445,177 km (0.089 R)
• M6: 3,031,451 km (0.085 R)
• M7: 3,439,405 km (0.09 R)
• M8: 4,272,366 km (0.039 R)
• M9: 5,625,179 km (0.12 R)
• M10: 7,246,371 km (0.1 R)
• M11: 8,238,804 km (0.107 R)
• M12: 8,923,363 km (0.069 R)
• M13: 11,025,513 km (0.068 R)
• M14: 12,386,255 km (0.08 R)
• M15: 16,898,127 km (0.081 R)
• M16: 18,447,063 km (0.12 R)
• M17: 19,420,796 km (0.084 R)
• M18: 19,953,962 km (0.118 R)
• M19: 20,910,491 km (0.09 R)
• M20: 23,063,055 km (0.042 R)
• M21: 23,510,652 km (0.092 R)
• M22: 28,396,817 km (0.028 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 630.3

Radius: 13.1

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 9.5 AU - 9.52 AU

Year: 10990 Days

Day: 12.2 Hours

Environment

Temp: -176 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 88,585,118 km

• M1: 162,912 km (0.067 R)
• M2: 689,796 km (0.103 R)
• M3: 1,420,432 km (0.062 R)
• M4: 2,090,780 km (0.1 R)
• M5: 2,710,414 km (0.052 R)
• M6: 3,353,835 km (0.101 R)
• M7: 3,881,915 km (0.107 R)
• M8: 4,732,828 km (0.113 R)
• M9: 6,612,226 km (0.034 R)
• M10: 7,656,269 km (0.114 R)
• M11: 9,620,041 km (0.12 R)
• M12: 10,587,041 km (0.108 R)
• M13: 13,074,854 km (0.041 R)
• M14: 14,005,801 km (0.042 R)
• M15: 17,503,250 km (0.118 R)
• M16: 22,843,445 km (0.119 R)
• M17: 24,747,677 km (0.094 R)
• M18: 26,462,367 km (0.119 R)
• M19: 32,862,763 km (0.072 R)
• M20: 39,456,738 km (0.092 R)
• M21: 40,225,521 km (0.096 R)
• M22: 40,743,578 km (0.045 R)
• M23: 41,265,974 km (0.071 R)
• M24: 43,129,964 km (0.091 R)
• M25: 45,328,304 km (0.097 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 395.3

Radius: 14.7

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 8.27 AU - 13.43 AU

Year: 13393 Days

Day: 13.4 Hours

Environment

Temp: -192 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 88,585,118 km

• M1: 182,809 km (0.096 R)
• M2: 785,987 km (0.11 R)
• M3: 1,998,777 km (0.117 R)
• M4: 2,771,151 km (0.09 R)
• M5: 4,023,285 km (0.07 R)
• M6: 4,793,116 km (0.105 R)
• M7: 5,591,968 km (0.045 R)
• M8: 8,002,289 km (0.055 R)
• M9: 9,903,080 km (0.097 R)
• M10: 11,695,113 km (0.095 R)
• M11: 14,841,455 km (0.033 R)
• M12: 15,776,891 km (0.117 R)
• M13: 16,751,222 km (0.064 R)
• M14: 20,642,861 km (0.106 R)
• M15: 21,220,308 km (0.05 R)
• M16: 34,581,493 km (0.107 R)
• M17: 39,162,329 km (0.117 R)
• M18: 44,679,349 km (0.112 R)
• M19: 45,925,499 km (0.091 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 468.6

Radius: 3.6

Gravity: 36.16 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 16.91 AU - 20.55 AU

Year: 30376 Days

Day: 24.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 88,585,118 km

• M1: 46,525 km (0.047 R)
• M2: 179,368 km (0.083 R)
• M3: 355,744 km (0.111 R)
• M4: 503,247 km (0.088 R)
• M5: 807,529 km (0.072 R)
• M6: 1,208,601 km (0.081 R)
• M7: 1,512,883 km (0.03 R)
• M8: 1,673,851 km (0.066 R)
• M9: 2,030,342 km (0.108 R)
• M10: 2,812,141 km (0.045 R)
• M11: 3,314,191 km (0.089 R)
• M12: 5,626,825 km (0.112 R)
• M13: 6,327,392 km (0.118 R)
• M14: 6,986,520 km (0.099 R)
• M15: 7,535,694 km (0.096 R)
• M16: 9,474,033 km (0.112 R)
• M17: 9,593,861 km (0.108 R)
• M18: 10,334,371 km (0.12 R)
• M19: 14,456,540 km (0.102 R)
• M20: 16,355,685 km (0.103 R)
• M21: 19,651,625 km (0.105 R)
• M22: 21,044,531 km (0.113 R)
• M23: 21,248,732 km (0.099 R)
• M24: 24,698,459 km (0.079 R)
• M25: 26,318,305 km (0.117 R)
• M26: 29,639,826 km (0.075 R)
• M27: 30,675,193 km (0.067 R)
• M28: 32,954,765 km (0.103 R)
• M29: 33,230,175 km (0.098 R)
• M30: 33,368,403 km (0.116 R)
• M31: 34,347,073 km (0.026 R)
• M32: 37,697,317 km (0.114 R)
• M33: 39,065,539 km (0.089 R)
• M34: 41,258,943 km (0.056 R)
• M35: 41,418,714 km (0.102 R)
• M36: 44,532,743 km (0.038 R)
• M37: 50,488,234 km (0.099 R)
• M38: 51,037,857 km (0.073 R)
• M39: 54,804,282 km (0.026 R)
• M40: 61,625,197 km (0.082 R)
• M41: 64,590,676 km (0.085 R)
• M42: 68,094,707 km (0.083 R)
• M43: 79,610,003 km (0.114 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: 411 - 11,598 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit