🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.06

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.52 AU - 0.78 AU

Year: 333 Days

Day: 24.5 Hours

Environment

Temp: -125 °C

Axial Tilt: 24 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 463.4

Radius: 14.1

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.78 AU - 0.8 AU

Year: 446 Days

Day: 7 Hours

Environment

Temp: -137 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 57,442,124 km

• M1: 175,329 km (0.096 R)
• M2: 673,789 km (0.114 R)
• M3: 1,303,596 km (0.098 R)
• M4: 1,757,027 km (0.082 R)
• M5: 2,208,364 km (0.033 R)
• M6: 3,242,683 km (0.094 R)
• M7: 4,162,262 km (0.047 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 567.2

Radius: 12.5

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.18 AU - 1.76 AU

Year: 1133 Days

Day: 9.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 57,442,124 km

• M1: 156,031 km (0.111 R)
• M2: 585,676 km (0.06 R)
• M3: 1,040,004 km (0.1 R)
• M4: 1,557,463 km (0.083 R)
• M5: 2,139,998 km (0.046 R)
• M6: 2,865,098 km (0.118 R)
• M7: 3,478,749 km (0.08 R)
• M8: 4,432,286 km (0.043 R)
• M9: 4,878,087 km (0.06 R)
• M10: 5,532,578 km (0.119 R)
• M11: 6,223,122 km (0.071 R)
• M12: 6,691,962 km (0.11 R)
• M13: 7,353,783 km (0.119 R)
• M14: 8,215,765 km (0.11 R)
• M15: 8,780,946 km (0.103 R)
• M16: 9,200,568 km (0.07 R)
• M17: 10,540,367 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 995

Radius: 8.5

Gravity: 13.77 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.81 AU - 1.93 AU

Year: 1626 Days

Day: 7.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 57,442,124 km

• M1: 105,766 km (0.107 R)
• M2: 378,483 km (0.102 R)
• M3: 742,753 km (0.085 R)
• M4: 1,008,290 km (0.11 R)
• M5: 1,279,062 km (0.12 R)
• M6: 1,638,994 km (0.084 R)
• M7: 2,101,850 km (0.088 R)
• M8: 2,483,923 km (0.058 R)
• M9: 2,749,609 km (0.119 R)
• M10: 3,355,181 km (0.112 R)
• M11: 3,663,353 km (0.086 R)
• M12: 5,112,806 km (0.059 R)
• M13: 5,687,262 km (0.052 R)
• M14: 6,856,220 km (0.079 R)
• M15: 7,326,406 km (0.048 R)
• M16: 7,906,846 km (0.089 R)
• M17: 9,492,434 km (0.087 R)
• M18: 10,794,683 km (0.064 R)
• M19: 12,779,548 km (0.102 R)
• M20: 14,950,362 km (0.091 R)
• M21: 15,412,321 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.7

Radius: 11.3

Gravity: 4.97 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 3.78 AU - 4.12 AU

Year: 4991 Days

Day: 8 Hours

Environment

Temp: -201 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,442,124 km

• M1: 179,517 km (0.085 R)
• M2: 930,648 km (0.051 R)
• M3: 1,416,841 km (0.114 R)
• M4: 1,797,568 km (0.089 R)
• M5: 2,293,186 km (0.102 R)
• M6: 4,722,954 km (0.078 R)
• M7: 5,224,855 km (0.093 R)
• M8: 6,588,739 km (0.095 R)
• M9: 7,492,759 km (0.03 R)
• M10: 7,956,662 km (0.041 R)
• M11: 11,292,395 km (0.103 R)
• M12: 12,047,117 km (0.032 R)
• M13: 13,709,747 km (0.089 R)
• M14: 14,733,745 km (0.112 R)
• M15: 21,050,066 km (0.087 R)
• M16: 22,338,702 km (0.09 R)
• M17: 23,301,514 km (0.066 R)
• M18: 27,515,088 km (0.112 R)
• M19: 28,192,467 km (0.087 R)
• M20: 28,794,149 km (0.07 R)

Asteroid Belt

Center: 4.39 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 4.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 309.5

Radius: 8.9

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 3.72 AU - 5.94 AU

Year: 6749 Days

Day: 5.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 57,442,124 km

• M1: 118,781 km (0.098 R)
• M2: 410,796 km (0.058 R)
• M3: 902,674 km (0.115 R)
• M4: 1,208,900 km (0.115 R)
• M5: 1,573,620 km (0.092 R)
• M6: 2,696,651 km (0.112 R)
• M7: 3,346,654 km (0.082 R)
• M8: 3,850,051 km (0.065 R)
• M9: 4,331,307 km (0.057 R)
• M10: 4,623,921 km (0.095 R)
• M11: 4,982,058 km (0.114 R)
• M12: 5,469,747 km (0.118 R)
• M13: 6,699,890 km (0.095 R)
• M14: 7,059,224 km (0.114 R)
• M15: 7,816,638 km (0.029 R)
• M16: 8,589,162 km (0.088 R)
• M17: 9,211,190 km (0.102 R)
• M18: 10,030,537 km (0.1 R)
• M19: 10,720,333 km (0.062 R)
• M20: 11,122,153 km (0.074 R)
• M21: 15,939,653 km (0.113 R)
• M22: 16,818,840 km (0.089 R)
• M23: 17,179,371 km (0.1 R)
• M24: 18,229,249 km (0.025 R)
• M25: 19,849,842 km (0.063 R)
• M26: 21,074,750 km (0.108 R)
• M27: 22,785,252 km (0.094 R)
• M28: 27,215,293 km (0.093 R)
• M29: 28,215,954 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 970.9

Radius: 13.5

Gravity: 5.33 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 4.69 AU - 7.11 AU

Year: 9112 Days

Day: 14.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 57,442,124 km

• M1: 167,998 km (0.066 R)
• M2: 847,921 km (0.112 R)
• M3: 1,372,710 km (0.116 R)
• M4: 1,883,437 km (0.05 R)
• M5: 2,600,460 km (0.105 R)
• M6: 3,068,701 km (0.073 R)
• M7: 6,029,542 km (0.119 R)
• M8: 7,676,914 km (0.098 R)
• M9: 8,559,541 km (0.091 R)
• M10: 10,265,705 km (0.118 R)
• M11: 10,954,005 km (0.09 R)
• M12: 11,448,276 km (0.074 R)
• M13: 15,611,136 km (0.105 R)
• M14: 16,665,352 km (0.04 R)
• M15: 17,320,292 km (0.094 R)
• M16: 23,104,942 km (0.073 R)
• M17: 27,472,303 km (0.052 R)
• M18: 31,582,504 km (0.03 R)
• M19: 38,176,629 km (0.058 R)
• M20: 40,216,994 km (0.111 R)
• M21: 41,132,084 km (0.094 R)
• M22: 41,661,212 km (0.09 R)
• M23: 43,823,200 km (0.098 R)
• M24: 46,343,924 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 157.5

Radius: 5.3

Gravity: 5.61 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 5.01 AU - 8.23 AU

Year: 10830 Days

Day: 16.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,442,124 km

• M1: 65,973 km (0.065 R)
• M2: 347,965 km (0.088 R)
• M3: 660,774 km (0.113 R)
• M4: 1,186,610 km (0.086 R)
• M5: 2,058,467 km (0.116 R)
• M6: 2,471,806 km (0.115 R)
• M7: 4,262,343 km (0.045 R)
• M8: 7,978,204 km (0.117 R)
• M9: 8,204,695 km (0.052 R)
• M10: 9,696,934 km (0.06 R)
• M11: 10,802,163 km (0.051 R)
• M12: 14,009,392 km (0.114 R)
• M13: 17,991,837 km (0.07 R)
• M14: 18,578,560 km (0.091 R)
• M15: 25,002,292 km (0.106 R)
• M16: 25,487,588 km (0.082 R)
• M17: 26,476,878 km (0.058 R)
• M18: 28,531,755 km (0.113 R)
• M19: 28,795,795 km (0.12 R)
• M20: 30,050,023 km (0.12 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 528.9

Radius: 5.1

Gravity: 20.33 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 7.7 AU - 8.7 AU

Year: 14930 Days

Day: 18.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 57,442,124 km

• M1: 63,429 km (0.113 R)
• M2: 311,912 km (0.12 R)
• M3: 579,841 km (0.099 R)
• M4: 743,501 km (0.1 R)
• M5: 1,003,652 km (0.074 R)
• M6: 1,536,520 km (0.045 R)
• M7: 1,874,013 km (0.11 R)
• M8: 2,318,617 km (0.116 R)
• M9: 2,946,330 km (0.069 R)
• M10: 3,236,849 km (0.097 R)
• M11: 3,846,909 km (0.102 R)
• M12: 4,437,073 km (0.088 R)
• M13: 4,884,819 km (0.116 R)
• M14: 5,362,036 km (0.106 R)
• M15: 5,539,908 km (0.05 R)
• M16: 6,097,011 km (0.11 R)
• M17: 10,689,516 km (0.118 R)
• M18: 11,200,841 km (0.039 R)
• M19: 11,374,973 km (0.052 R)
• M20: 15,603,806 km (0.043 R)
• M21: 15,966,880 km (0.106 R)
• M22: 16,709,933 km (0.098 R)
• M23: 23,503,621 km (0.109 R)
• M24: 23,693,760 km (0.094 R)
• M25: 24,855,686 km (0.103 R)
• M26: 25,450,637 km (0.102 R)
• M27: 26,566,039 km (0.049 R)
• M28: 29,441,310 km (0.109 R)
• M29: 37,071,100 km (0.052 R)
• M30: 38,899,336 km (0.097 R)
• M31: 42,171,939 km (0.092 R)
• M32: 45,771,114 km (0.102 R)
• M33: 49,103,257 km (0.113 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: 532 - 14,788 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit