🌌 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: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.38

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.61 AU - 0.71 AU

Year: 346 Days

Day: 25.8 Hours

Environment

Temp: -124 °C

Axial Tilt: 0.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 146.8

Radius: 10.1

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.91 AU - 0.93 AU

Year: 570 Days

Day: 13.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 39,248,753 km

• M1: 125,662 km (0.036 R)
• M2: 439,818 km (0.079 R)
• M3: 1,047,484 km (0.097 R)
• M4: 1,370,765 km (0.112 R)
• M5: 1,768,845 km (0.081 R)
• M6: 2,111,724 km (0.101 R)
• M7: 2,639,056 km (0.111 R)
• M8: 2,972,809 km (0.045 R)
• M9: 4,016,703 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 631

Radius: 12.6

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.11 AU - 1.75 AU

Year: 1104 Days

Day: 14.5 Hours

Environment

Temp: -171 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 39,248,753 km

• M1: 156,629 km (0.109 R)
• M2: 617,989 km (0.096 R)
• M3: 1,431,801 km (0.102 R)
• M4: 1,840,802 km (0.056 R)
• M5: 2,464,326 km (0.103 R)
• M6: 2,890,680 km (0.089 R)
• M7: 3,395,273 km (0.076 R)
• M8: 4,271,468 km (0.066 R)
• M9: 5,572,221 km (0.068 R)
• M10: 6,515,885 km (0.077 R)
• M11: 7,563,220 km (0.118 R)
• M12: 8,500,899 km (0.085 R)
• M13: 9,253,975 km (0.032 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 646.1

Radius: 8.4

Gravity: 9.16 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 2.29 AU - 2.73 AU

Year: 2568 Days

Day: 5.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 39,248,753 km

• M1: 104,569 km (0.073 R)
• M2: 382,223 km (0.11 R)
• M3: 1,124,527 km (0.089 R)
• M4: 1,387,071 km (0.103 R)
• M5: 2,090,331 km (0.119 R)
• M6: 2,493,647 km (0.089 R)
• M7: 3,510,613 km (0.107 R)
• M8: 3,789,164 km (0.098 R)
• M9: 4,122,768 km (0.105 R)
• M10: 4,433,333 km (0.108 R)
• M11: 5,008,836 km (0.077 R)
• M12: 5,387,169 km (0.082 R)
• M13: 6,254,687 km (0.111 R)
• M14: 6,582,157 km (0.074 R)
• M15: 6,978,591 km (0.115 R)
• M16: 9,032,121 km (0.098 R)
• M17: 9,593,562 km (0.08 R)
• M18: 12,200,604 km (0.108 R)
• M19: 13,598,297 km (0.072 R)
• M20: 14,335,964 km (0.106 R)
• M21: 15,393,172 km (0.072 R)
• M22: 16,760,796 km (0.106 R)
• M23: 17,181,166 km (0.074 R)
• M24: 17,933,643 km (0.071 R)
• M25: 18,764,061 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.4

Radius: 13

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 2.83 AU - 4.43 AU

Year: 4466 Days

Day: 6.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 39,248,753 km

• M1: 161,715 km (0.053 R)
• M2: 1,074,113 km (0.094 R)
• M3: 1,571,675 km (0.087 R)
• M4: 2,355,568 km (0.089 R)
• M5: 2,907,883 km (0.114 R)
• M6: 4,054,401 km (0.071 R)
• M7: 4,742,402 km (0.092 R)
• M8: 6,271,891 km (0.071 R)
• M9: 6,764,217 km (0.068 R)
• M10: 7,919,861 km (0.069 R)
• M11: 8,365,513 km (0.107 R)
• M12: 10,889,977 km (0.059 R)
• M13: 12,774,312 km (0.047 R)
• M14: 13,478,170 km (0.072 R)
• M15: 18,755,983 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 177.3

Radius: 10.5

Gravity: 1.61 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 3.19 AU - 5.01 AU

Year: 5360 Days

Day: 5.4 Hours

Environment

Temp: -213 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 39,248,753 km

• M1: 140,772 km (0.071 R)
• M2: 560,842 km (0.095 R)
• M3: 974,630 km (0.083 R)
• M4: 2,029,445 km (0.11 R)
• M5: 3,426,390 km (0.102 R)
• M6: 3,800,534 km (0.079 R)
• M7: 4,181,260 km (0.108 R)
• M8: 5,784,202 km (0.077 R)
• M9: 6,624,044 km (0.116 R)
• M10: 7,268,213 km (0.1 R)
• M11: 8,956,574 km (0.09 R)
• M12: 10,500,125 km (0.075 R)
• M13: 11,789,808 km (0.107 R)
• M14: 13,409,504 km (0.052 R)
• M15: 17,192,834 km (0.118 R)
• M16: 18,806,996 km (0.112 R)
• M17: 19,211,359 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 936.4

Radius: 5.6

Gravity: 29.86 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 5.46 AU - 7.28 AU

Year: 10381 Days

Day: 24.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 39,248,753 km

• M1: 69,713 km (0.099 R)
• M2: 305,479 km (0.057 R)
• M3: 505,342 km (0.113 R)
• M4: 822,639 km (0.09 R)
• M5: 1,015,919 km (0.093 R)
• M6: 1,278,164 km (0.097 R)
• M7: 1,482,216 km (0.033 R)
• M8: 2,306,350 km (0.104 R)
• M9: 3,011,555 km (0.112 R)
• M10: 3,823,722 km (0.12 R)
• M11: 5,066,281 km (0.094 R)
• M12: 5,546,191 km (0.105 R)
• M13: 5,724,811 km (0.093 R)
• M14: 8,935,630 km (0.094 R)
• M15: 10,210,204 km (0.113 R)
• M16: 11,543,271 km (0.093 R)
• M17: 12,191,478 km (0.085 R)
• M18: 14,348,381 km (0.094 R)
• M19: 14,617,806 km (0.107 R)
• M20: 15,236,394 km (0.082 R)
• M21: 18,276,372 km (0.037 R)
• M22: 20,231,317 km (0.075 R)
• M23: 21,697,526 km (0.108 R)
• M24: 24,839,978 km (0.071 R)
• M25: 25,621,029 km (0.112 R)
• M26: 26,721,620 km (0.098 R)
• M27: 27,853,478 km (0.095 R)
• M28: 32,933,822 km (0.052 R)
• M29: 33,402,661 km (0.097 R)
• M30: 38,081,784 km (0.117 R)
• M31: 40,711,565 km (0.115 R)
• M32: 43,600,299 km (0.055 R)
• M33: 44,450,165 km (0.112 R)
• M34: 47,810,283 km (0.105 R)
• M35: 50,399,822 km (0.025 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 793.3

Radius: 5.2

Gravity: 29.34 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 7.6 AU - 9.16 AU

Year: 15663 Days

Day: 16.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 39,248,753 km

• M1: 77,940 km (0.114 R)
• M2: 246,836 km (0.054 R)
• M3: 806,781 km (0.108 R)
• M4: 1,062,145 km (0.077 R)
• M5: 1,490,593 km (0.079 R)
• M6: 2,065,797 km (0.088 R)
• M7: 2,392,968 km (0.066 R)
• M8: 2,614,522 km (0.102 R)
• M9: 4,982,806 km (0.048 R)
• M10: 5,842,246 km (0.07 R)
• M11: 6,972,458 km (0.051 R)
• M12: 7,802,427 km (0.093 R)
• M13: 8,644,962 km (0.045 R)
• M14: 10,626,386 km (0.061 R)
• M15: 11,410,727 km (0.063 R)
• M16: 14,136,700 km (0.114 R)
• M17: 14,351,672 km (0.055 R)
• M18: 14,788,198 km (0.088 R)
• M19: 17,267,484 km (0.044 R)
• M20: 18,950,161 km (0.12 R)
• M21: 21,297,052 km (0.057 R)
• M22: 22,249,093 km (0.082 R)
• M23: 26,667,167 km (0.114 R)
• M24: 27,326,744 km (0.103 R)
• M25: 27,660,497 km (0.112 R)
• M26: 31,758,431 km (0.085 R)
• M27: 32,004,220 km (0.109 R)
• M28: 35,843,351 km (0.081 R)
• M29: 36,916,566 km (0.086 R)
• M30: 37,461,102 km (0.098 R)
• M31: 38,427,055 km (0.052 R)
• M32: 39,127,173 km (0.057 R)
• M33: 43,054,866 km (0.091 R)
• M34: 51,513,279 km (0.068 R)
• M35: 52,022,660 km (0.086 R)
• M36: 52,364,191 km (0.09 R)
• M37: 53,744,980 km (0.111 R)
• M38: 56,940,091 km (0.103 R)
• M39: 60,824,998 km (0.087 R)
• M40: 63,122,522 km (0.109 R)

Planet 9 - Ice Giant

Semi-Major Axis: 11.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 64.9

Radius: 3.6

Gravity: 5.01 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 10.75 AU - 11.57 AU

Year: 24072 Days

Day: 17.1 Hours

Environment

Temp: -232 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 39,248,753 km

• M1: 58,194 km (0.106 R)
• M2: 293,062 km (0.069 R)
• M3: 491,279 km (0.072 R)
• M4: 1,124,527 km (0.102 R)
• M5: 1,281,904 km (0.116 R)
• M6: 1,754,633 km (0.114 R)
• M7: 2,079,261 km (0.102 R)
• M8: 2,230,055 km (0.107 R)
• M9: 2,516,386 km (0.074 R)
• M10: 3,075,583 km (0.029 R)
• M11: 4,770,975 km (0.104 R)
• M12: 8,428,494 km (0.099 R)
• M13: 10,662,738 km (0.094 R)
• M14: 10,860,955 km (0.079 R)
• M15: 11,213,557 km (0.086 R)
• M16: 12,101,869 km (0.085 R)
• M17: 16,125,154 km (0.109 R)
• M18: 17,665,265 km (0.051 R)
• M19: 22,380,141 km (0.068 R)
• M20: 22,786,748 km (0.076 R)
• M21: 24,462,393 km (0.089 R)
• M22: 25,506,287 km (0.049 R)
• M23: 30,472,937 km (0.05 R)
• M24: 33,763,491 km (0.117 R)
• M25: 37,625,061 km (0.077 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 514 - 17,676 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit