🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.95

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.68 AU - 0.92 AU

Year: 271 Days

Day: 29.1 Hours

Environment

Temp: 128 °C

Axial Tilt: 42.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.02

Radius: 1.01

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.75 AU - 0.87 AU

Year: 276 Days

Day: 46.2 Hours

Environment

Temp: 158 °C

Axial Tilt: 127.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 108,994,776 km

• M1: 49,517 km (0.115 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.97

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.67 AU - 0.97 AU

Year: 281 Days

Day: 41.7 Hours

Environment

Temp: 161 °C

Axial Tilt: 8.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 108,994,776 km

• M1: 34,408 km (0.079 R)

Asteroid Belt

Center: 3.12 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 5.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763.4

Radius: 9.2

Gravity: 9.02 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 5.24 AU - 5.58 AU

Year: 4766 Days

Day: 13.6 Hours

Environment

Temp: -143 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 108,994,776 km

• M1: 114,592 km (0.109 R)
• M2: 453,880 km (0.056 R)
• M3: 813,663 km (0.07 R)
• M4: 1,151,305 km (0.111 R)
• M5: 1,465,910 km (0.036 R)
• M6: 1,906,326 km (0.104 R)
• M7: 2,242,322 km (0.094 R)
• M8: 2,583,705 km (0.104 R)
• M9: 3,372,235 km (0.067 R)
• M10: 3,800,384 km (0.1 R)
• M11: 4,870,907 km (0.12 R)
• M12: 5,334,510 km (0.111 R)
• M13: 5,708,505 km (0.093 R)
• M14: 8,486,837 km (0.108 R)
• M15: 10,744,119 km (0.117 R)
• M16: 11,673,421 km (0.083 R)
• M17: 11,962,295 km (0.111 R)
• M18: 13,427,007 km (0.076 R)
• M19: 14,339,255 km (0.067 R)
• M20: 19,462,234 km (0.084 R)
• M21: 21,266,235 km (0.114 R)
• M22: 22,727,806 km (0.072 R)
• M23: 23,483,275 km (0.064 R)
• M24: 23,790,101 km (0.099 R)
• M25: 25,849,914 km (0.115 R)
• M26: 29,246,982 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 120.1

Radius: 11.9

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 6.53 AU - 10.69 AU

Year: 9569 Days

Day: 10.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 108,994,776 km

• M1: 148,551 km (0.114 R)
• M2: 1,045,390 km (0.059 R)
• M3: 2,221,828 km (0.089 R)
• M4: 2,685,731 km (0.095 R)
• M5: 3,327,954 km (0.037 R)
• M6: 4,795,061 km (0.065 R)
• M7: 6,811,789 km (0.084 R)
• M8: 7,360,514 km (0.081 R)
• M9: 8,043,728 km (0.085 R)
• M10: 9,616,151 km (0.113 R)
• M11: 12,252,066 km (0.072 R)
• M12: 12,870,653 km (0.089 R)
• M13: 14,905,333 km (0.033 R)
• M14: 21,050,365 km (0.103 R)
• M15: 21,593,854 km (0.117 R)
• M16: 23,280,570 km (0.097 R)
• M17: 23,861,908 km (0.068 R)
• M18: 24,304,268 km (0.052 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 107.3

Radius: 9.4

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 7.92 AU - 9.68 AU

Year: 9887 Days

Day: 14.9 Hours

Environment

Temp: -169 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 108,994,776 km

• M1: 122,969 km (0.119 R)
• M2: 630,555 km (0.025 R)
• M3: 953,387 km (0.088 R)
• M4: 1,307,934 km (0.102 R)
• M5: 1,726,210 km (0.074 R)
• M6: 2,443,083 km (0.107 R)
• M7: 5,253,728 km (0.047 R)
• M8: 6,622,249 km (0.111 R)
• M9: 8,612,649 km (0.077 R)
• M10: 9,369,614 km (0.048 R)
• M11: 12,277,497 km (0.103 R)
• M12: 12,943,208 km (0.092 R)
• M13: 13,632,854 km (0.091 R)
• M14: 14,871,824 km (0.037 R)
• M15: 16,127,997 km (0.11 R)
• M16: 17,453,584 km (0.063 R)
• M17: 23,342,803 km (0.078 R)
• M18: 25,036,251 km (0.077 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 822.7

Radius: 3.5

Gravity: 67.16 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 14.08 AU - 21.02 AU

Year: 27846 Days

Day: 16.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 108,994,776 km

• M1: 43,832 km (0.092 R)
• M2: 297,101 km (0.08 R)
• M3: 464,202 km (0.074 R)
• M4: 692,189 km (0.088 R)
• M5: 1,222,663 km (0.119 R)
• M6: 1,898,247 km (0.105 R)
• M7: 2,527,456 km (0.076 R)
• M8: 2,684,384 km (0.036 R)
• M9: 3,134,524 km (0.112 R)
• M10: 3,472,017 km (0.103 R)
• M11: 5,108,169 km (0.062 R)
• M12: 9,168,106 km (0.084 R)
• M13: 10,376,108 km (0.097 R)
• M14: 10,710,908 km (0.075 R)
• M15: 12,195,667 km (0.118 R)
• M16: 12,568,465 km (0.085 R)
• M17: 12,871,999 km (0.102 R)
• M18: 14,135,652 km (0.118 R)
• M19: 14,797,324 km (0.115 R)
• M20: 16,632,291 km (0.068 R)
• M21: 21,384,417 km (0.077 R)
• M22: 26,344,634 km (0.116 R)
• M23: 34,767,293 km (0.064 R)
• M24: 35,365,086 km (0.09 R)
• M25: 35,666,526 km (0.096 R)
• M26: 37,982,451 km (0.028 R)
• M27: 40,068,892 km (0.095 R)
• M28: 40,396,511 km (0.116 R)
• M29: 41,389,991 km (0.112 R)
• M30: 44,643,745 km (0.099 R)
• M31: 46,422,912 km (0.071 R)
• M32: 48,433,807 km (0.062 R)
• M33: 50,121,719 km (0.115 R)
• M34: 56,645,832 km (0.057 R)
• M35: 62,827,067 km (0.12 R)
• M36: 63,491,131 km (0.056 R)
• M37: 71,827,473 km (0.091 R)
• M38: 91,192,618 km (0.046 R)
• M39: 94,628,133 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 824.9

Radius: 5.9

Gravity: 23.7 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 16.12 AU - 19.5 AU

Year: 28467 Days

Day: 18.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 108,994,776 km

• M1: 73,602 km (0.037 R)
• M2: 287,976 km (0.104 R)
• M3: 680,371 km (0.08 R)
• M4: 880,084 km (0.107 R)
• M5: 1,488,349 km (0.086 R)
• M6: 1,711,400 km (0.088 R)
• M7: 2,544,061 km (0.091 R)
• M8: 2,864,799 km (0.078 R)
• M9: 4,730,584 km (0.078 R)
• M10: 4,969,342 km (0.094 R)
• M11: 5,734,386 km (0.069 R)
• M12: 6,478,037 km (0.07 R)
• M13: 8,098,481 km (0.08 R)
• M14: 9,338,647 km (0.102 R)
• M15: 9,842,792 km (0.109 R)
• M16: 12,791,516 km (0.097 R)
• M17: 13,022,345 km (0.075 R)
• M18: 14,382,938 km (0.063 R)
• M19: 14,716,242 km (0.072 R)
• M20: 16,461,151 km (0.063 R)
• M21: 17,857,199 km (0.074 R)
• M22: 19,029,448 km (0.119 R)
• M23: 19,736,297 km (0.117 R)
• M24: 21,310,067 km (0.049 R)
• M25: 23,535,934 km (0.082 R)
• M26: 29,101,423 km (0.032 R)
• M27: 37,018,891 km (0.114 R)
• M28: 39,403,481 km (0.047 R)
• M29: 40,550,597 km (0.057 R)
• M30: 40,882,405 km (0.093 R)
• M31: 45,006,071 km (0.112 R)
• M32: 47,168,358 km (0.067 R)
• M33: 49,210,220 km (0.057 R)
• M34: 58,178,313 km (0.071 R)
• M35: 58,389,096 km (0.085 R)
• M36: 60,741,373 km (0.071 R)
• M37: 63,378,783 km (0.117 R)
• M38: 66,551,006 km (0.109 R)
• M39: 82,140,600 km (0.118 R)
• M40: 92,628,758 km (0.1 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 961.1

Radius: 6

Gravity: 26.7 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 14.8 AU - 21.22 AU

Year: 28948 Days

Day: 23.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 108,994,776 km

• M1: 74,799 km (0.074 R)
• M2: 373,546 km (0.074 R)
• M3: 869,912 km (0.042 R)
• M4: 1,234,332 km (0.115 R)
• M5: 1,945,221 km (0.059 R)
• M6: 2,364,544 km (0.115 R)
• M7: 3,319,427 km (0.082 R)
• M8: 4,586,222 km (0.069 R)
• M9: 4,865,671 km (0.079 R)
• M10: 5,198,825 km (0.052 R)
• M11: 6,338,911 km (0.045 R)
• M12: 7,310,250 km (0.095 R)
• M13: 9,672,849 km (0.075 R)
• M14: 10,066,291 km (0.105 R)
• M15: 10,267,051 km (0.114 R)
• M16: 10,955,501 km (0.083 R)
• M17: 11,528,012 km (0.119 R)
• M18: 14,438,139 km (0.062 R)
• M19: 16,847,263 km (0.115 R)
• M20: 17,225,596 km (0.1 R)
• M21: 17,803,643 km (0.097 R)
• M22: 22,330,923 km (0.083 R)
• M23: 23,133,964 km (0.084 R)
• M24: 35,083,693 km (0.111 R)
• M25: 44,750,707 km (0.063 R)
• M26: 49,413,822 km (0.079 R)
• M27: 51,961,923 km (0.091 R)
• M28: 53,167,083 km (0.078 R)
• M29: 56,471,401 km (0.058 R)
• M30: 57,745,077 km (0.098 R)
• M31: 58,173,974 km (0.11 R)
• M32: 60,349,726 km (0.057 R)
• M33: 61,012,893 km (0.092 R)
• M34: 66,494,159 km (0.103 R)
• M35: 76,859,945 km (0.06 R)
• M36: 77,899,950 km (0.115 R)
• M37: 83,787,972 km (0.113 R)
• M38: 86,559,722 km (0.068 R)
• M39: 98,258,425 km (0.09 R)
• M40: 106,401,486 km (0.105 R)
• M41: 107,045,953 km (0.106 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 340 - 17,424 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit