🌌 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: 0.11

Radius: 0.41

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.53 AU - 0.59 AU

Year: 266 Days

Day: 14.7 Hours

Environment

Temp: -128 °C

Axial Tilt: 3.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 222.3

Radius: 10.1

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.71 AU - 0.93 AU

Year: 472 Days

Day: 15 Hours

Environment

Temp: -145 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 80,133,314 km

• M1: 125,662 km (0.059 R)
• M2: 455,376 km (0.033 R)
• M3: 1,859,801 km (0.105 R)
• M4: 2,232,449 km (0.067 R)
• M5: 2,619,160 km (0.06 R)
• M6: 3,050,600 km (0.054 R)
• M7: 3,431,626 km (0.079 R)
• M8: 3,752,513 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 889.3

Radius: 9.4

Gravity: 10.06 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 3.04 AU - 3.42 AU

Year: 3691 Days

Day: 8.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 80,133,314 km

• M1: 116,986 km (0.109 R)
• M2: 417,976 km (0.082 R)
• M3: 938,427 km (0.083 R)
• M4: 1,909,766 km (0.088 R)
• M5: 2,493,497 km (0.032 R)
• M6: 3,116,722 km (0.058 R)
• M7: 4,082,675 km (0.082 R)
• M8: 4,948,548 km (0.068 R)
• M9: 6,409,222 km (0.087 R)
• M10: 6,720,086 km (0.078 R)
• M11: 7,439,801 km (0.074 R)
• M12: 7,783,577 km (0.119 R)
• M13: 9,950,054 km (0.071 R)
• M14: 10,283,358 km (0.117 R)
• M15: 11,238,540 km (0.114 R)
• M16: 12,251,766 km (0.068 R)
• M17: 13,224,751 km (0.083 R)
• M18: 16,108,400 km (0.044 R)
• M19: 16,919,370 km (0.098 R)
• M20: 17,818,303 km (0.108 R)
• M21: 19,257,883 km (0.111 R)
• M22: 20,237,600 km (0.112 R)
• M23: 21,734,177 km (0.117 R)
• M24: 23,522,919 km (0.104 R)
• M25: 24,793,902 km (0.084 R)
• M26: 25,407,553 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 849.9

Radius: 12.9

Gravity: 5.11 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 3.57 AU - 5.41 AU

Year: 6049 Days

Day: 12.9 Hours

Environment

Temp: -215 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 80,133,314 km

• M1: 160,668 km (0.045 R)
• M2: 567,126 km (0.11 R)
• M3: 991,834 km (0.092 R)
• M4: 1,527,095 km (0.08 R)
• M5: 2,048,743 km (0.098 R)
• M6: 2,579,067 km (0.11 R)
• M7: 3,392,730 km (0.117 R)
• M8: 4,091,502 km (0.07 R)
• M9: 5,437,883 km (0.085 R)
• M10: 5,968,357 km (0.088 R)
• M11: 6,671,317 km (0.096 R)
• M12: 8,004,384 km (0.084 R)
• M13: 9,686,013 km (0.065 R)
• M14: 11,291,647 km (0.055 R)
• M15: 11,950,177 km (0.075 R)
• M16: 13,908,413 km (0.104 R)
• M17: 16,198,757 km (0.083 R)
• M18: 17,367,116 km (0.051 R)
• M19: 18,521,264 km (0.108 R)
• M20: 27,801,567 km (0.12 R)
• M21: 28,259,786 km (0.114 R)
• M22: 30,046,732 km (0.092 R)
• M23: 31,808,247 km (0.062 R)
• M24: 33,741,201 km (0.054 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 673.5

Radius: 12.5

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 3.67 AU - 5.37 AU

Year: 6110 Days

Day: 6.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 80,133,314 km

• M1: 155,432 km (0.114 R)
• M2: 560,394 km (0.041 R)
• M3: 1,264,551 km (0.119 R)
• M4: 1,885,980 km (0.096 R)
• M5: 2,441,886 km (0.112 R)
• M6: 3,816,840 km (0.085 R)
• M7: 4,794,911 km (0.044 R)
• M8: 6,155,204 km (0.097 R)
• M9: 6,925,334 km (0.09 R)
• M10: 7,498,144 km (0.098 R)
• M11: 8,738,909 km (0.097 R)
• M12: 9,195,632 km (0.077 R)
• M13: 10,067,039 km (0.118 R)
• M14: 11,136,514 km (0.118 R)
• M15: 12,331,652 km (0.091 R)
• M16: 13,067,224 km (0.08 R)
• M17: 15,390,779 km (0.071 R)
• M18: 20,549,661 km (0.1 R)
• M19: 22,575,216 km (0.028 R)
• M20: 24,566,364 km (0.04 R)
• M21: 27,282,612 km (0.099 R)
• M22: 30,099,241 km (0.076 R)
• M23: 33,809,717 km (0.118 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 627.8

Radius: 3.2

Gravity: 61.31 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 7.92 AU - 9.32 AU

Year: 16091 Days

Day: 16.1 Hours

Environment

Temp: -236 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 80,133,314 km

• M1: 39,943 km (0.055 R)
• M2: 197,020 km (0.053 R)
• M3: 437,873 km (0.025 R)
• M4: 879,635 km (0.092 R)
• M5: 1,256,024 km (0.118 R)
• M6: 1,427,463 km (0.08 R)
• M7: 3,409,335 km (0.085 R)
• M8: 3,545,918 km (0.099 R)
• M9: 3,743,238 km (0.06 R)
• M10: 6,058,564 km (0.113 R)
• M11: 6,631,374 km (0.114 R)
• M12: 7,374,427 km (0.085 R)
• M13: 8,666,055 km (0.096 R)
• M14: 9,879,144 km (0.084 R)
• M15: 10,045,198 km (0.062 R)
• M16: 11,503,029 km (0.112 R)
• M17: 12,250,420 km (0.05 R)
• M18: 13,841,244 km (0.087 R)
• M19: 14,400,590 km (0.086 R)
• M20: 17,185,205 km (0.075 R)
• M21: 18,493,139 km (0.087 R)
• M22: 19,257,136 km (0.106 R)
• M23: 21,030,020 km (0.072 R)
• M24: 21,582,335 km (0.097 R)
• M25: 25,722,307 km (0.03 R)
• M26: 28,983,391 km (0.11 R)
• M27: 32,877,124 km (0.102 R)
• M28: 36,310,844 km (0.109 R)
• M29: 50,610,007 km (0.093 R)
• M30: 57,636,918 km (0.116 R)
• M31: 58,355,437 km (0.116 R)
• M32: 58,535,852 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 959.3

Radius: 4.2

Gravity: 54.38 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 8.64 AU - 10.12 AU

Year: 18266 Days

Day: 16.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 80,133,314 km

• M1: 52,210 km (0.101 R)
• M2: 380,278 km (0.113 R)
• M3: 619,036 km (0.092 R)
• M4: 826,079 km (0.111 R)
• M5: 2,461,035 km (0.083 R)
• M6: 2,801,220 km (0.077 R)
• M7: 3,255,549 km (0.034 R)
• M8: 3,544,871 km (0.07 R)
• M9: 4,275,208 km (0.099 R)
• M10: 6,463,825 km (0.075 R)
• M11: 6,920,547 km (0.047 R)
• M12: 7,252,804 km (0.061 R)
• M13: 8,000,494 km (0.086 R)
• M14: 8,366,560 km (0.077 R)
• M15: 8,798,300 km (0.09 R)
• M16: 9,188,152 km (0.087 R)
• M17: 10,002,413 km (0.091 R)
• M18: 10,488,756 km (0.058 R)
• M19: 19,509,657 km (0.089 R)
• M20: 20,171,777 km (0.054 R)
• M21: 22,659,141 km (0.116 R)
• M22: 24,900,416 km (0.097 R)
• M23: 30,569,427 km (0.071 R)
• M24: 32,766,870 km (0.089 R)
• M25: 34,379,835 km (0.081 R)
• M26: 36,186,229 km (0.058 R)
• M27: 36,611,835 km (0.052 R)
• M28: 43,563,349 km (0.086 R)
• M29: 44,692,813 km (0.072 R)
• M30: 46,506,836 km (0.114 R)
• M31: 53,333,286 km (0.113 R)
• M32: 58,431,283 km (0.082 R)
• M33: 60,598,208 km (0.093 R)
• M34: 64,882,541 km (0.077 R)
• M35: 69,364,194 km (0.085 R)
• M36: 72,015,667 km (0.056 R)
• M37: 77,990,456 km (0.09 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 319 - 12,344 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit