🌌 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: 4.29

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.53 AU - 0.59 AU

Year: 271 Days

Day: 27.1 Hours

Environment

Temp: -130 °C

Axial Tilt: 3.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 545.9

Radius: 13.9

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.67 AU - 0.95 AU

Year: 471 Days

Day: 8.7 Hours

Environment

Temp: -157 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 76,339,801 km

• M1: 173,085 km (0.111 R)
• M2: 641,924 km (0.087 R)
• M3: 1,258,268 km (0.088 R)
• M4: 1,840,652 km (0.073 R)
• M5: 2,279,423 km (0.078 R)
• M6: 2,758,884 km (0.064 R)
• M7: 3,249,266 km (0.116 R)
• M8: 3,835,839 km (0.093 R)
• M9: 4,338,937 km (0.089 R)
• M10: 5,270,931 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 907.3

Radius: 10.1

Gravity: 8.89 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 1.27 AU - 1.87 AU

Year: 1270 Days

Day: 9.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 61.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 76,339,801 km

• M1: 125,662 km (0.099 R)
• M2: 537,356 km (0.064 R)
• M3: 931,546 km (0.092 R)
• M4: 1,383,182 km (0.102 R)
• M5: 1,713,943 km (0.111 R)
• M6: 2,329,688 km (0.114 R)
• M7: 2,669,873 km (0.111 R)
• M8: 3,145,744 km (0.06 R)
• M9: 3,727,381 km (0.116 R)
• M10: 4,177,820 km (0.088 R)
• M11: 4,510,675 km (0.091 R)
• M12: 4,841,286 km (0.12 R)
• M13: 5,508,194 km (0.093 R)
• M14: 6,094,019 km (0.086 R)
• M15: 6,621,800 km (0.109 R)
• M16: 7,879,320 km (0.056 R)
• M17: 9,074,008 km (0.051 R)
• M18: 9,603,286 km (0.107 R)
• M19: 10,318,663 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 779

Radius: 12.6

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.77 AU - 1.93 AU

Year: 1625 Days

Day: 7.3 Hours

Environment

Temp: -183 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 76,339,801 km

• M1: 156,629 km (0.1 R)
• M2: 635,193 km (0.069 R)
• M3: 1,135,897 km (0.112 R)
• M4: 1,619,696 km (0.03 R)
• M5: 2,043,806 km (0.062 R)
• M6: 3,077,527 km (0.119 R)
• M7: 3,602,167 km (0.104 R)
• M8: 4,057,094 km (0.114 R)
• M9: 4,471,929 km (0.103 R)
• M10: 5,126,420 km (0.056 R)
• M11: 6,251,695 km (0.094 R)
• M12: 6,704,229 km (0.101 R)
• M13: 7,287,062 km (0.062 R)
• M14: 7,788,963 km (0.088 R)
• M15: 8,646,009 km (0.114 R)
• M16: 10,065,394 km (0.037 R)
• M17: 10,618,307 km (0.077 R)
• M18: 12,399,719 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 960.5

Radius: 14.2

Gravity: 4.76 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 2.59 AU - 3.45 AU

Year: 3389 Days

Day: 5.4 Hours

Environment

Temp: -196 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 76,339,801 km

• M1: 181,462 km (0.091 R)
• M2: 848,370 km (0.073 R)
• M3: 1,325,587 km (0.108 R)
• M4: 1,797,119 km (0.117 R)
• M5: 2,367,835 km (0.115 R)
• M6: 3,005,272 km (0.039 R)
• M7: 3,945,943 km (0.068 R)
• M8: 4,676,579 km (0.119 R)
• M9: 5,308,780 km (0.11 R)
• M10: 5,997,827 km (0.112 R)
• M11: 6,683,734 km (0.041 R)
• M12: 7,724,785 km (0.12 R)
• M13: 8,428,643 km (0.106 R)
• M14: 9,290,776 km (0.089 R)
• M15: 10,418,744 km (0.115 R)
• M16: 11,908,888 km (0.113 R)
• M17: 13,092,357 km (0.107 R)
• M18: 15,748,018 km (0.045 R)
• M19: 17,587,174 km (0.045 R)
• M20: 18,497,029 km (0.044 R)
• M21: 20,082,766 km (0.058 R)
• M22: 23,669,076 km (0.101 R)
• M23: 24,703,096 km (0.073 R)
• M24: 26,076,704 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 139.3

Radius: 8.9

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 2.85 AU - 3.89 AU

Year: 3994 Days

Day: 7.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 76,339,801 km

• M1: 111,600 km (0.082 R)
• M2: 458,368 km (0.079 R)
• M3: 1,300,604 km (0.049 R)
• M4: 4,317,395 km (0.077 R)
• M5: 6,285,953 km (0.041 R)
• M6: 6,747,014 km (0.117 R)
• M7: 7,258,040 km (0.111 R)
• M8: 10,453,899 km (0.092 R)
• M9: 11,435,411 km (0.073 R)
• M10: 11,929,383 km (0.027 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 198.7

Radius: 12.7

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 3.12 AU - 4.54 AU

Year: 4840 Days

Day: 8.7 Hours

Environment

Temp: -215 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 76,339,801 km

• M1: 159,023 km (0.029 R)
• M2: 793,617 km (0.058 R)
• M3: 1,326,634 km (0.113 R)
• M4: 1,799,363 km (0.094 R)
• M5: 2,250,401 km (0.059 R)
• M6: 3,179,104 km (0.05 R)
• M7: 3,865,459 km (0.082 R)
• M8: 4,781,746 km (0.119 R)
• M9: 5,291,576 km (0.053 R)
• M10: 6,985,024 km (0.069 R)
• M11: 8,019,643 km (0.074 R)
• M12: 8,946,252 km (0.114 R)
• M13: 9,759,765 km (0.059 R)
• M14: 10,894,166 km (0.092 R)
• M15: 11,905,148 km (0.084 R)
• M16: 14,066,837 km (0.058 R)
• M17: 15,512,850 km (0.038 R)
• M18: 16,897,079 km (0.104 R)
• M19: 17,755,322 km (0.116 R)
• M20: 18,642,438 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 377.8

Radius: 6.9

Gravity: 7.94 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 4.83 AU - 7.99 AU

Year: 10479 Days

Day: 22.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 76,339,801 km

• M1: 85,869 km (0.101 R)
• M2: 325,824 km (0.118 R)
• M3: 659,278 km (0.116 R)
• M4: 900,130 km (0.079 R)
• M5: 1,881,044 km (0.088 R)
• M6: 2,169,020 km (0.113 R)
• M7: 4,207,291 km (0.094 R)
• M8: 4,561,239 km (0.074 R)
• M9: 4,964,256 km (0.073 R)
• M10: 5,205,108 km (0.105 R)
• M11: 5,517,319 km (0.101 R)
• M12: 6,008,748 km (0.079 R)
• M13: 6,636,610 km (0.066 R)
• M14: 6,966,474 km (0.106 R)
• M15: 8,481,750 km (0.097 R)
• M16: 9,002,800 km (0.105 R)
• M17: 10,995,294 km (0.088 R)
• M18: 11,457,551 km (0.094 R)
• M19: 13,966,158 km (0.119 R)
• M20: 17,021,844 km (0.083 R)
• M21: 21,196,074 km (0.046 R)
• M22: 21,512,323 km (0.067 R)
• M23: 24,242,784 km (0.114 R)
• M24: 26,095,703 km (0.1 R)
• M25: 29,292,460 km (0.101 R)
• M26: 33,697,369 km (0.098 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 528.2

Radius: 5.3

Gravity: 18.8 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 7.16 AU - 8.06 AU

Year: 13555 Days

Day: 16.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 76,339,801 km

• M1: 65,973 km (0.119 R)
• M2: 359,035 km (0.084 R)
• M3: 886,068 km (0.085 R)
• M4: 1,100,891 km (0.11 R)
• M5: 2,491,852 km (0.108 R)
• M6: 3,691,028 km (0.12 R)
• M7: 4,281,491 km (0.109 R)
• M8: 4,491,826 km (0.116 R)
• M9: 4,708,892 km (0.086 R)
• M10: 5,130,758 km (0.116 R)
• M11: 6,353,122 km (0.08 R)
• M12: 8,485,640 km (0.11 R)
• M13: 11,335,031 km (0.105 R)
• M14: 12,330,604 km (0.114 R)
• M15: 14,900,546 km (0.09 R)
• M16: 16,972,626 km (0.119 R)
• M17: 18,194,392 km (0.11 R)
• M18: 19,802,420 km (0.103 R)
• M19: 20,726,187 km (0.098 R)
• M20: 20,897,177 km (0.116 R)
• M21: 22,840,603 km (0.053 R)
• M22: 23,949,871 km (0.096 R)
• M23: 26,175,439 km (0.069 R)
• M24: 29,066,417 km (0.079 R)
• M25: 31,033,181 km (0.075 R)
• M26: 39,002,858 km (0.032 R)
• M27: 39,263,607 km (0.092 R)
• M28: 42,759,709 km (0.073 R)
• M29: 43,455,040 km (0.114 R)
• M30: 46,457,918 km (0.077 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 970.7

Radius: 7.4

Gravity: 17.73 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 7.66 AU - 9.96 AU

Year: 16884 Days

Day: 22.2 Hours

Environment

Temp: -236 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 76,339,801 km

• M1: 101,577 km (0.117 R)
• M2: 486,791 km (0.103 R)
• M3: 839,244 km (0.114 R)
• M4: 1,119,890 km (0.056 R)
• M5: 1,386,323 km (0.115 R)
• M6: 1,951,654 km (0.117 R)
• M7: 2,192,207 km (0.11 R)
• M8: 3,088,897 km (0.093 R)
• M9: 3,445,987 km (0.05 R)
• M10: 3,860,971 km (0.112 R)
• M11: 4,649,801 km (0.045 R)
• M12: 7,907,743 km (0.101 R)
• M13: 9,680,329 km (0.054 R)
• M14: 12,299,488 km (0.062 R)
• M15: 13,197,524 km (0.095 R)
• M16: 14,892,019 km (0.119 R)
• M17: 19,431,267 km (0.106 R)
• M18: 19,986,425 km (0.112 R)
• M19: 23,541,768 km (0.035 R)
• M20: 24,278,986 km (0.052 R)
• M21: 25,358,485 km (0.109 R)
• M22: 33,827,968 km (0.066 R)
• M23: 39,571,778 km (0.077 R)
• M24: 40,015,934 km (0.111 R)
• M25: 43,847,286 km (0.065 R)
• M26: 44,322,857 km (0.111 R)
• M27: 44,801,870 km (0.113 R)
• M28: 46,096,190 km (0.114 R)
• M29: 46,917,632 km (0.112 R)
• M30: 47,248,991 km (0.029 R)
• M31: 48,589,837 km (0.108 R)
• M32: 49,099,218 km (0.118 R)
• M33: 54,207,536 km (0.036 R)
• M34: 57,550,151 km (0.032 R)
• M35: 59,465,303 km (0.073 R)
• M36: 61,620,560 km (0.075 R)
• M37: 66,711,375 km (0.118 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: 439 - 18,625 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit