🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.85 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.58

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.64 AU - 1.76 AU

Year: 818 Days

Day: 21.9 Hours

Environment

Temp: -56 °C

Axial Tilt: 24.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.6

Radius: 0.82

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.82 AU - 1.96 AU

Year: 959 Days

Day: 14 Hours

Environment

Temp: -72 °C

Axial Tilt: 6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 93,985,832 km

• M1: 67,169 km (0.109 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.02

Radius: 1.32

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 1.87 AU - 2.53 AU

Year: 1204 Days

Day: 14.4 Hours

Environment

Temp: -78 °C

Axial Tilt: 25.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 4.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 3.3 AU - 4.72 AU

Year: 2963 Days

Day: 29.9 Hours

Environment

Temp: -123 °C

Axial Tilt: 21.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 93,985,832 km

• M1: 100,679 km (0.088 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.27

Radius: 1.79

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 4.03 AU - 4.29 AU

Year: 3131 Days

Day: 22.5 Hours

Environment

Temp: -129 °C

Axial Tilt: 20 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 9.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 70

Radius: 13.8

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 8.66 AU - 10.46 AU

Year: 10906 Days

Day: 13 Hours

Environment

Temp: -177 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 93,985,832 km

• M1: 171,589 km (0.083 R)
• M2: 717,322 km (0.067 R)
• M3: 2,006,855 km (0.033 R)
• M4: 3,316,884 km (0.114 R)
• M5: 6,350,878 km (0.104 R)
• M6: 7,616,177 km (0.029 R)
• M7: 8,050,609 km (0.111 R)
• M8: 9,607,774 km (0.088 R)
• M9: 11,530,705 km (0.026 R)
• M10: 18,466,960 km (0.11 R)
• M11: 22,974,194 km (0.055 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 988

Radius: 8.4

Gravity: 14 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 9.4 AU - 11.02 AU

Year: 12037 Days

Day: 13 Hours

Environment

Temp: -184 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 93,985,832 km

• M1: 104,419 km (0.077 R)
• M2: 379,231 km (0.083 R)
• M3: 663,018 km (0.087 R)
• M4: 960,867 km (0.032 R)
• M5: 1,418,786 km (0.043 R)
• M6: 1,926,970 km (0.064 R)
• M7: 3,006,618 km (0.032 R)
• M8: 3,733,514 km (0.09 R)
• M9: 4,108,556 km (0.025 R)
• M10: 5,036,661 km (0.074 R)
• M11: 5,315,811 km (0.12 R)
• M12: 6,098,208 km (0.083 R)
• M13: 7,660,309 km (0.109 R)
• M14: 9,420,178 km (0.099 R)
• M15: 11,315,284 km (0.112 R)
• M16: 11,795,643 km (0.082 R)
• M17: 12,227,083 km (0.118 R)
• M18: 13,318,848 km (0.063 R)
• M19: 16,066,662 km (0.05 R)
• M20: 16,597,136 km (0.114 R)
• M21: 17,374,895 km (0.057 R)
• M22: 22,372,661 km (0.079 R)
• M23: 31,192,951 km (0.119 R)
• M24: 34,456,578 km (0.11 R)
• M25: 37,278,742 km (0.105 R)
• M26: 43,524,154 km (0.077 R)
• M27: 44,702,836 km (0.119 R)
• M28: 48,838,319 km (0.101 R)
• M29: 49,312,993 km (0.071 R)
• M30: 50,755,566 km (0.117 R)
• M31: 52,061,256 km (0.107 R)
• M32: 54,230,425 km (0.072 R)
• M33: 57,157,008 km (0.081 R)
• M34: 58,214,665 km (0.103 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 523.3

Radius: 7.8

Gravity: 8.6 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 11.82 AU - 18.56 AU

Year: 21843 Days

Day: 19.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 93,985,832 km

• M1: 101,727 km (0.069 R)
• M2: 602,281 km (0.068 R)
• M3: 881,431 km (0.105 R)
• M4: 1,421,928 km (0.12 R)
• M5: 2,066,246 km (0.114 R)
• M6: 2,443,831 km (0.093 R)
• M7: 3,798,440 km (0.099 R)
• M8: 4,671,792 km (0.107 R)
• M9: 5,100,539 km (0.119 R)
• M10: 6,077,713 km (0.032 R)
• M11: 7,456,407 km (0.08 R)
• M12: 10,818,320 km (0.031 R)
• M13: 12,154,378 km (0.098 R)
• M14: 12,691,135 km (0.086 R)
• M15: 14,770,396 km (0.119 R)
• M16: 20,328,705 km (0.097 R)
• M17: 22,453,294 km (0.095 R)
• M18: 23,159,246 km (0.12 R)
• M19: 25,042,384 km (0.044 R)
• M20: 25,692,088 km (0.117 R)
• M21: 26,464,312 km (0.114 R)
• M22: 26,912,507 km (0.105 R)
• M23: 27,479,782 km (0.107 R)
• M24: 28,992,067 km (0.039 R)
• M25: 38,959,025 km (0.071 R)
• M26: 43,605,835 km (0.103 R)
• M27: 43,917,746 km (0.103 R)
• M28: 45,180,203 km (0.044 R)
• M29: 47,777,371 km (0.11 R)
• M30: 53,089,592 km (0.074 R)
• M31: 54,161,311 km (0.048 R)
• M32: 54,702,556 km (0.063 R)
• M33: 55,065,480 km (0.111 R)
• M34: 59,545,488 km (0.094 R)
• M35: 61,873,979 km (0.103 R)
• M36: 69,010,994 km (0.095 R)

Planet 9 - Ice Giant

Semi-Major Axis: 16.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 867.9

Radius: 6.6

Gravity: 19.92 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 16.07 AU - 16.63 AU

Year: 24392 Days

Day: 16.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 93,985,832 km

• M1: 102,325 km (0.111 R)
• M2: 368,310 km (0.072 R)
• M3: 1,224,608 km (0.113 R)
• M4: 1,463,067 km (0.05 R)
• M5: 1,713,494 km (0.077 R)
• M6: 2,013,737 km (0.036 R)
• M7: 3,487,426 km (0.107 R)
• M8: 3,805,471 km (0.099 R)
• M9: 4,426,900 km (0.063 R)
• M10: 6,137,103 km (0.092 R)
• M11: 7,972,519 km (0.101 R)
• M12: 8,356,986 km (0.079 R)
• M13: 9,584,586 km (0.097 R)
• M14: 12,319,983 km (0.115 R)
• M15: 15,116,416 km (0.101 R)
• M16: 17,472,433 km (0.091 R)
• M17: 18,978,285 km (0.118 R)
• M18: 19,663,593 km (0.119 R)
• M19: 22,788,393 km (0.082 R)
• M20: 23,562,413 km (0.036 R)
• M21: 34,262,550 km (0.08 R)
• M22: 34,985,556 km (0.061 R)
• M23: 38,754,525 km (0.113 R)
• M24: 39,224,263 km (0.114 R)
• M25: 42,122,572 km (0.107 R)
• M26: 47,621,939 km (0.083 R)
• M27: 49,067,952 km (0.106 R)
• M28: 61,917,960 km (0.053 R)
• M29: 66,728,579 km (0.097 R)
• M30: 68,537,965 km (0.059 R)
• M31: 74,161,648 km (0.112 R)
• M32: 74,643,802 km (0.039 R)
• M33: 77,085,539 km (0.069 R)
• M34: 80,592,861 km (0.057 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 490 - 14,594 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit