🌌 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: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.03

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.49 AU - 0.55 AU

Year: 246 Days

Day: 20.3 Hours

Environment

Temp: -123 °C

Axial Tilt: 22.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.42

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.41 AU - 0.67 AU

Year: 260 Days

Day: 34.8 Hours

Environment

Temp: -126 °C

Axial Tilt: 46.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 76,937,843 km

• M1: 318,943 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 446

Radius: 14.6

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.66 AU - 0.82 AU

Year: 418 Days

Day: 10.2 Hours

Environment

Temp: -132 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 76,937,843 km

• M1: 181,612 km (0.101 R)
• M2: 678,726 km (0.09 R)
• M3: 1,227,750 km (0.085 R)
• M4: 2,102,897 km (0.109 R)
• M5: 2,733,153 km (0.113 R)
• M6: 3,376,873 km (0.091 R)
• M7: 4,458,465 km (0.056 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54

Radius: 8.5

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.73 AU - 0.89 AU

Year: 478 Days

Day: 5.9 Hours

Environment

Temp: -138 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 76,937,843 km

• M1: 105,766 km (0.119 R)
• M2: 768,783 km (0.075 R)
• M3: 1,393,504 km (0.058 R)
• M4: 1,843,046 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 919.6

Radius: 14.9

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 3.72 AU - 5.74 AU

Year: 6748 Days

Day: 5.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 76,937,843 km

• M1: 185,801 km (0.049 R)
• M2: 1,027,438 km (0.095 R)
• M3: 1,562,699 km (0.118 R)
• M4: 2,320,861 km (0.108 R)
• M5: 3,228,621 km (0.111 R)
• M6: 4,470,882 km (0.118 R)
• M7: 5,781,509 km (0.098 R)
• M8: 6,456,345 km (0.084 R)
• M9: 8,502,545 km (0.09 R)
• M10: 9,108,715 km (0.075 R)
• M11: 9,836,808 km (0.112 R)
• M12: 10,652,715 km (0.081 R)
• M13: 11,306,757 km (0.116 R)
• M14: 11,934,170 km (0.095 R)
• M15: 15,363,701 km (0.095 R)
• M16: 16,795,951 km (0.116 R)
• M17: 17,683,216 km (0.056 R)
• M18: 18,458,133 km (0.111 R)
• M19: 22,027,389 km (0.043 R)
• M20: 23,592,781 km (0.114 R)
• M21: 25,231,326 km (0.072 R)
• M22: 25,853,803 km (0.119 R)
• M23: 30,501,809 km (0.091 R)
• M24: 33,821,386 km (0.086 R)
• M25: 34,578,351 km (0.064 R)
• M26: 35,679,391 km (0.038 R)
• M27: 39,598,556 km (0.114 R)
• M28: 40,439,596 km (0.057 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 762

Radius: 6.3

Gravity: 19.2 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 5.23 AU - 8.71 AU

Year: 12071 Days

Day: 19 Hours

Environment

Temp: -214 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 76,937,843 km

• M1: 81,680 km (0.047 R)
• M2: 295,905 km (0.079 R)
• M3: 534,962 km (0.104 R)
• M4: 836,402 km (0.104 R)
• M5: 1,786,049 km (0.088 R)
• M6: 2,044,405 km (0.116 R)
• M7: 2,615,270 km (0.072 R)
• M8: 3,019,932 km (0.082 R)
• M9: 3,262,131 km (0.089 R)
• M10: 3,650,038 km (0.089 R)
• M11: 5,695,490 km (0.069 R)
• M12: 6,335,769 km (0.079 R)
• M13: 6,653,216 km (0.074 R)
• M14: 9,952,896 km (0.066 R)
• M15: 11,105,996 km (0.078 R)
• M16: 18,791,886 km (0.12 R)
• M17: 19,282,118 km (0.064 R)
• M18: 22,587,483 km (0.073 R)
• M19: 23,048,694 km (0.108 R)
• M20: 24,761,290 km (0.088 R)
• M21: 26,353,311 km (0.057 R)
• M22: 27,278,125 km (0.062 R)
• M23: 30,629,416 km (0.111 R)
• M24: 33,524,284 km (0.095 R)
• M25: 35,842,752 km (0.084 R)
• M26: 39,717,636 km (0.102 R)
• M27: 40,119,905 km (0.111 R)
• M28: 47,680,731 km (0.065 R)
• M29: 51,396,443 km (0.096 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 901.3

Radius: 6.5

Gravity: 21.33 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 8.02 AU - 8.56 AU

Year: 15658 Days

Day: 23.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 76,937,843 km

• M1: 94,695 km (0.086 R)
• M2: 460,013 km (0.065 R)
• M3: 793,766 km (0.11 R)
• M4: 1,281,755 km (0.049 R)
• M5: 1,600,847 km (0.113 R)
• M6: 2,147,777 km (0.115 R)
• M7: 2,420,793 km (0.099 R)
• M8: 6,527,404 km (0.102 R)
• M9: 7,758,744 km (0.055 R)
• M10: 9,030,475 km (0.062 R)
• M11: 13,529,931 km (0.098 R)
• M12: 17,854,655 km (0.12 R)
• M13: 18,975,892 km (0.047 R)
• M14: 21,934,788 km (0.097 R)
• M15: 26,157,337 km (0.037 R)
• M16: 33,011,164 km (0.114 R)
• M17: 37,261,090 km (0.087 R)
• M18: 45,078,177 km (0.108 R)
• M19: 50,628,856 km (0.076 R)
• M20: 60,162,429 km (0.059 R)
• M21: 62,670,886 km (0.069 R)
• M22: 64,248,695 km (0.088 R)
• M23: 69,140,845 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 252.8

Radius: 3.3

Gravity: 23.21 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 7.36 AU - 11.94 AU

Year: 19665 Days

Day: 23.5 Hours

Environment

Temp: -237 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 76,937,843 km

• M1: 41,139 km (0.047 R)
• M2: 569,519 km (0.082 R)
• M3: 853,605 km (0.069 R)
• M4: 1,541,157 km (0.076 R)
• M5: 1,926,671 km (0.079 R)
• M6: 2,313,681 km (0.087 R)
• M7: 4,418,972 km (0.104 R)
• M8: 5,463,015 km (0.099 R)
• M9: 5,783,902 km (0.102 R)
• M10: 7,278,834 km (0.04 R)
• M11: 15,685,935 km (0.042 R)
• M12: 17,679,327 km (0.094 R)
• M13: 18,696,742 km (0.077 R)
• M14: 20,847,211 km (0.102 R)
• M15: 23,065,149 km (0.076 R)
• M16: 24,660,012 km (0.116 R)
• M17: 26,027,486 km (0.094 R)
• M18: 26,932,703 km (0.044 R)
• M19: 29,126,257 km (0.102 R)
• M20: 32,003,173 km (0.088 R)
• M21: 44,403,640 km (0.03 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 678.4

Radius: 5.1

Gravity: 26.08 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 9.32 AU - 10.48 AU

Year: 20434 Days

Day: 21.1 Hours

Environment

Temp: -238 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 76,937,843 km

• M1: 63,429 km (0.112 R)
• M2: 256,860 km (0.081 R)
• M3: 454,628 km (0.042 R)
• M4: 651,200 km (0.119 R)
• M5: 848,968 km (0.072 R)
• M6: 1,061,098 km (0.099 R)
• M7: 1,235,978 km (0.096 R)
• M8: 3,192,867 km (0.107 R)
• M9: 4,117,382 km (0.096 R)
• M10: 5,094,855 km (0.093 R)
• M11: 6,175,550 km (0.1 R)
• M12: 6,391,120 km (0.106 R)
• M13: 6,567,347 km (0.111 R)
• M14: 6,792,192 km (0.059 R)
• M15: 7,546,016 km (0.098 R)
• M16: 8,095,788 km (0.073 R)
• M17: 10,141,389 km (0.064 R)
• M18: 12,993,473 km (0.054 R)
• M19: 15,218,292 km (0.081 R)
• M20: 20,500,294 km (0.106 R)
• M21: 20,691,629 km (0.106 R)
• M22: 23,916,660 km (0.107 R)
• M23: 28,876,428 km (0.115 R)
• M24: 29,968,941 km (0.108 R)
• M25: 31,722,677 km (0.115 R)
• M26: 33,147,747 km (0.079 R)
• M27: 37,250,468 km (0.117 R)
• M28: 38,981,914 km (0.084 R)
• M29: 40,315,429 km (0.117 R)
• M30: 44,497,587 km (0.075 R)
• M31: 47,107,472 km (0.106 R)
• M32: 68,930,660 km (0.117 R)
• M33: 74,654,573 km (0.047 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: 396 - 15,137 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit