🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.97 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.12

Radius: 0.43

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.64 AU - 2.22 AU

Year: 934 Days

Day: 32.1 Hours

Environment

Temp: -51 °C

Axial Tilt: 11.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.52

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.96 AU - 2.76 AU

Year: 1263 Days

Day: 26.7 Hours

Environment

Temp: -60 °C

Axial Tilt: 12.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.26

Radius: 0.58

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 2.59 AU - 2.79 AU

Year: 1536 Days

Day: 31.7 Hours

Environment

Temp: -74 °C

Axial Tilt: 26.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.24

Radius: 1.38

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 2.07 AU - 3.33 AU

Year: 1545 Days

Day: 35.2 Hours

Environment

Temp: -76 °C

Axial Tilt: 7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 5.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.58

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 4.39 AU - 5.65 AU

Year: 3917 Days

Day: 39 Hours

Environment

Temp: -118 °C

Axial Tilt: 29.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 9.32 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 13.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 463.6

Radius: 5.9

Gravity: 13.32 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 11.73 AU - 15.49 AU

Year: 17486 Days

Day: 17.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 66,690,727 km

• M1: 576,251 km (0.113 R)
• M2: 1,026,690 km (0.116 R)
• M3: 1,221,616 km (0.114 R)
• M4: 1,470,846 km (0.11 R)
• M5: 2,471,207 km (0.119 R)
• M6: 2,734,200 km (0.115 R)
• M7: 2,991,509 km (0.089 R)
• M8: 4,690,791 km (0.106 R)
• M9: 5,377,295 km (0.061 R)
• M10: 6,862,503 km (0.117 R)
• M11: 7,562,920 km (0.063 R)
• M12: 7,930,333 km (0.063 R)
• M13: 8,166,099 km (0.101 R)
• M14: 8,503,891 km (0.109 R)
• M15: 8,750,877 km (0.083 R)
• M16: 11,853,986 km (0.082 R)
• M17: 13,650,357 km (0.043 R)
• M18: 14,683,629 km (0.092 R)
• M19: 14,967,716 km (0.052 R)
• M20: 15,547,108 km (0.1 R)
• M21: 19,941,097 km (0.035 R)
• M22: 21,088,812 km (0.086 R)
• M23: 21,541,645 km (0.112 R)
• M24: 21,908,608 km (0.03 R)
• M25: 23,322,009 km (0.115 R)
• M26: 23,708,869 km (0.09 R)
• M27: 25,810,869 km (0.103 R)
• M28: 26,433,495 km (0.041 R)
• M29: 28,252,156 km (0.101 R)
• M30: 28,471,467 km (0.075 R)
• M31: 29,247,880 km (0.084 R)
• M32: 31,661,941 km (0.09 R)
• M33: 33,221,050 km (0.096 R)
• M34: 33,465,492 km (0.1 R)
• M35: 34,830,723 km (0.114 R)
• M36: 35,336,214 km (0.074 R)
• M37: 37,804,728 km (0.106 R)
• M38: 38,071,013 km (0.076 R)
• M39: 38,877,495 km (0.099 R)
• M40: 42,792,471 km (0.103 R)
• M41: 44,844,954 km (0.078 R)
• M42: 53,209,868 km (0.101 R)
• M43: 55,409,555 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 138.1

Radius: 5.1

Gravity: 5.31 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 13.92 AU - 15.08 AU

Year: 19229 Days

Day: 16.9 Hours

Environment

Temp: -186 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 66,690,727 km

• M1: 63,579 km (0.075 R)
• M2: 234,569 km (0.063 R)
• M3: 431,889 km (0.09 R)
• M4: 619,485 km (0.086 R)
• M5: 1,485,507 km (0.059 R)
• M6: 2,717,745 km (0.077 R)
• M7: 3,054,489 km (0.091 R)
• M8: 4,953,335 km (0.099 R)
• M9: 6,487,760 km (0.117 R)
• M10: 7,244,426 km (0.079 R)
• M11: 7,725,683 km (0.095 R)
• M12: 8,443,453 km (0.106 R)
• M13: 12,710,882 km (0.027 R)
• M14: 14,258,023 km (0.025 R)
• M15: 16,261,438 km (0.036 R)
• M16: 21,460,114 km (0.11 R)
• M17: 22,199,726 km (0.037 R)
• M18: 22,533,778 km (0.117 R)
• M19: 22,956,242 km (0.093 R)
• M20: 29,236,061 km (0.105 R)
• M21: 33,856,541 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 668.2

Radius: 3.3

Gravity: 61.36 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 13.93 AU - 19.13 AU

Year: 23405 Days

Day: 15.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 66,690,727 km

• M1: 41,289 km (0.1 R)
• M2: 352,901 km (0.049 R)
• M3: 827,875 km (0.091 R)
• M4: 1,979,928 km (0.082 R)
• M5: 2,512,197 km (0.101 R)
• M6: 2,811,393 km (0.109 R)
• M7: 4,564,829 km (0.086 R)
• M8: 4,746,740 km (0.068 R)
• M9: 9,074,457 km (0.09 R)
• M10: 11,818,082 km (0.112 R)
• M11: 12,370,098 km (0.039 R)
• M12: 25,572,410 km (0.051 R)
• M13: 27,199,137 km (0.029 R)
• M14: 28,037,783 km (0.104 R)
• M15: 28,280,430 km (0.1 R)
• M16: 29,390,147 km (0.056 R)
• M17: 31,303,654 km (0.066 R)
• M18: 35,660,093 km (0.116 R)
• M19: 46,561,440 km (0.107 R)
• M20: 49,507,919 km (0.068 R)
• M21: 66,979,006 km (0.096 R)
• M22: 77,196,540 km (0.119 R)

Planet 9 - Ice Giant

Semi-Major Axis: 16.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 476.2

Radius: 5.3

Gravity: 16.95 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 14.61 AU - 19.21 AU

Year: 24216 Days

Day: 16.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 66,690,727 km

• M1: 65,973 km (0.046 R)
• M2: 339,886 km (0.081 R)
• M3: 542,442 km (0.062 R)
• M4: 734,675 km (0.118 R)
• M5: 902,973 km (0.113 R)
• M6: 1,364,632 km (0.118 R)
• M7: 2,110,976 km (0.101 R)
• M8: 2,840,415 km (0.057 R)
• M9: 3,972,721 km (0.057 R)
• M10: 7,958,457 km (0.099 R)
• M11: 8,162,060 km (0.073 R)
• M12: 10,095,612 km (0.034 R)
• M13: 12,046,069 km (0.115 R)
• M14: 12,864,220 km (0.043 R)
• M15: 14,459,233 km (0.093 R)
• M16: 16,674,029 km (0.1 R)
• M17: 17,261,201 km (0.055 R)
• M18: 18,654,705 km (0.06 R)
• M19: 19,470,761 km (0.114 R)
• M20: 26,083,436 km (0.118 R)
• M21: 27,913,915 km (0.039 R)
• M22: 31,828,443 km (0.094 R)
• M23: 39,679,638 km (0.106 R)
• M24: 40,125,290 km (0.115 R)
• M25: 47,549,683 km (0.086 R)
• M26: 51,671,553 km (0.117 R)
• M27: 53,276,738 km (0.102 R)
• M28: 58,866,912 km (0.059 R)
• M29: 61,406,186 km (0.098 R)
• M30: 61,803,219 km (0.066 R)
• M31: 62,803,280 km (0.091 R)
• M32: 67,965,753 km (0.053 R)
• M33: 70,976,710 km (0.085 R)
• M34: 71,853,054 km (0.084 R)
• M35: 76,114,349 km (0.058 R)

Planet 10 - Ice Giant

Semi-Major Axis: 19.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 219.7

Radius: 7.7

Gravity: 3.71 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 16.37 AU - 21.75 AU

Year: 28979 Days

Day: 22.3 Hours

Environment

Temp: -196 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 66,690,727 km

• M1: 96,042 km (0.116 R)
• M2: 348,563 km (0.086 R)
• M3: 604,974 km (0.095 R)
• M4: 1,075,160 km (0.098 R)
• M5: 1,605,185 km (0.114 R)
• M6: 2,381,897 km (0.091 R)
• M7: 2,644,591 km (0.063 R)
• M8: 3,228,771 km (0.046 R)
• M9: 4,786,982 km (0.081 R)
• M10: 5,964,168 km (0.07 R)
• M11: 9,245,148 km (0.115 R)
• M12: 12,428,741 km (0.084 R)
• M13: 13,224,153 km (0.06 R)
• M14: 13,912,602 km (0.117 R)
• M15: 16,747,631 km (0.054 R)
• M16: 19,068,044 km (0.085 R)
• M17: 22,451,798 km (0.103 R)
• M18: 27,521,670 km (0.116 R)
• M19: 27,854,675 km (0.112 R)
• M20: 28,529,062 km (0.108 R)
• M21: 28,870,145 km (0.098 R)
• M22: 29,793,314 km (0.098 R)
• M23: 33,430,935 km (0.046 R)
• M24: 33,937,324 km (0.099 R)
• M25: 36,412,571 km (0.056 R)
• M26: 36,679,902 km (0.097 R)
• M27: 40,705,431 km (0.089 R)
• M28: 44,709,119 km (0.116 R)
• M29: 47,043,145 km (0.091 R)
• M30: 47,360,292 km (0.107 R)
• M31: 53,489,317 km (0.093 R)
• M32: 54,880,577 km (0.088 R)
• M33: 55,585,183 km (0.05 R)
• M34: 55,939,730 km (0.106 R)
• M35: 57,554,041 km (0.071 R)
• M36: 59,754,326 km (0.031 R)
• M37: 62,582,773 km (0.037 R)
• M38: 63,932,744 km (0.117 R)
• M39: 64,321,998 km (0.094 R)

Kuiper Belt

Range: 31.5 - 61.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 374 - 13,558 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit