🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1

Radius: 1

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.42 AU - 0.66 AU

Year: 256 Days

Day: 21.8 Hours

Environment

Temp: -130 °C

Axial Tilt: 9.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 89,857,111 km

• M1: 29,770 km (0.038 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 292.5

Radius: 12.1

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.58 AU - 0.9 AU

Year: 411 Days

Day: 13.3 Hours

Environment

Temp: -152 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 89,857,111 km

• M1: 150,495 km (0.063 R)
• M2: 586,723 km (0.111 R)
• M3: 993,779 km (0.104 R)
• M4: 1,370,466 km (0.04 R)
• M5: 1,950,008 km (0.099 R)
• M6: 3,016,192 km (0.086 R)
• M7: 3,607,104 km (0.034 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 641.8

Radius: 10.8

Gravity: 5.5 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.75 AU - 1.19 AU

Year: 617 Days

Day: 11.5 Hours

Environment

Temp: -154 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 89,857,111 km

• M1: 134,339 km (0.091 R)
• M2: 570,566 km (0.098 R)
• M3: 1,204,412 km (0.115 R)
• M4: 1,625,680 km (0.106 R)
• M5: 2,257,731 km (0.105 R)
• M6: 2,642,347 km (0.116 R)
• M7: 3,011,854 km (0.106 R)
• M8: 3,493,260 km (0.096 R)
• M9: 3,940,258 km (0.053 R)
• M10: 4,502,148 km (0.073 R)
• M11: 5,322,243 km (0.117 R)
• M12: 5,897,447 km (0.027 R)
• M13: 6,553,584 km (0.094 R)
• M14: 7,300,825 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831.6

Radius: 10.3

Gravity: 7.84 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.15 AU - 1.39 AU

Year: 924 Days

Day: 13.6 Hours

Environment

Temp: -168 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 89,857,111 km

• M1: 128,205 km (0.066 R)
• M2: 509,231 km (0.084 R)
• M3: 839,543 km (0.066 R)
• M4: 1,213,688 km (0.06 R)
• M5: 1,656,348 km (0.103 R)
• M6: 2,039,917 km (0.113 R)
• M7: 2,771,450 km (0.086 R)
• M8: 3,359,819 km (0.12 R)
• M9: 3,776,449 km (0.1 R)
• M10: 4,677,776 km (0.075 R)
• M11: 5,083,934 km (0.119 R)
• M12: 5,574,017 km (0.037 R)
• M13: 6,379,003 km (0.11 R)
• M14: 6,809,695 km (0.037 R)
• M15: 7,259,685 km (0.088 R)
• M16: 8,088,607 km (0.108 R)
• M17: 8,593,799 km (0.065 R)
• M18: 9,434,091 km (0.1 R)
• M19: 9,874,357 km (0.058 R)
• M20: 10,297,719 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 896.8

Radius: 14

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.51 AU - 2.05 AU

Year: 1533 Days

Day: 12.6 Hours

Environment

Temp: -176 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 89,857,111 km

• M1: 174,132 km (0.097 R)
• M2: 656,136 km (0.088 R)
• M3: 1,396,347 km (0.053 R)
• M4: 1,931,608 km (0.118 R)
• M5: 2,590,886 km (0.104 R)
• M6: 3,116,273 km (0.105 R)
• M7: 4,580,088 km (0.059 R)
• M8: 5,310,724 km (0.116 R)
• M9: 6,438,094 km (0.094 R)
• M10: 7,139,259 km (0.077 R)
• M11: 7,833,393 km (0.062 R)
• M12: 8,301,036 km (0.115 R)
• M13: 9,487,198 km (0.029 R)
• M14: 10,396,454 km (0.11 R)
• M15: 12,506,681 km (0.055 R)
• M16: 14,977,589 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 473.7

Radius: 8.3

Gravity: 6.88 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.7 AU - 2.02 AU

Year: 1638 Days

Day: 8.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 89,857,111 km

• M1: 103,223 km (0.097 R)
• M2: 407,056 km (0.111 R)
• M3: 671,096 km (0.098 R)
• M4: 1,197,381 km (0.105 R)
• M5: 1,924,427 km (0.105 R)
• M6: 2,278,226 km (0.04 R)
• M7: 2,584,303 km (0.04 R)
• M8: 3,973,918 km (0.067 R)
• M9: 4,457,269 km (0.032 R)
• M10: 5,059,849 km (0.097 R)
• M11: 5,519,713 km (0.112 R)
• M12: 6,717,842 km (0.029 R)
• M13: 7,221,837 km (0.042 R)
• M14: 7,536,292 km (0.119 R)
• M15: 8,277,250 km (0.102 R)
• M16: 8,709,289 km (0.093 R)
• M17: 10,226,660 km (0.032 R)
• M18: 10,657,203 km (0.092 R)
• M19: 12,058,037 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 214.7

Radius: 14.9

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 2.9 AU - 4.12 AU

Year: 4246 Days

Day: 5.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 89,857,111 km

• M1: 185,352 km (0.047 R)
• M2: 662,270 km (0.045 R)
• M3: 1,257,071 km (0.056 R)
• M4: 1,736,382 km (0.083 R)
• M5: 2,340,608 km (0.117 R)
• M6: 2,926,882 km (0.037 R)
• M7: 3,811,903 km (0.117 R)
• M8: 4,318,143 km (0.095 R)
• M9: 5,710,899 km (0.107 R)
• M10: 6,271,442 km (0.043 R)
• M11: 7,152,873 km (0.043 R)
• M12: 7,744,682 km (0.056 R)
• M13: 8,726,792 km (0.07 R)
• M14: 9,472,986 km (0.069 R)
• M15: 10,747,709 km (0.067 R)
• M16: 11,605,952 km (0.066 R)
• M17: 17,745,898 km (0.027 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 836.3

Radius: 8.2

Gravity: 12.44 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 3.26 AU - 4.16 AU

Year: 4614 Days

Day: 10.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 89,857,111 km

• M1: 103,223 km (0.084 R)
• M2: 392,395 km (0.11 R)
• M3: 656,585 km (0.103 R)
• M4: 1,054,964 km (0.065 R)
• M5: 1,321,548 km (0.118 R)
• M6: 2,082,552 km (0.075 R)
• M7: 3,431,626 km (0.101 R)
• M8: 3,777,346 km (0.105 R)
• M9: 4,218,062 km (0.111 R)
• M10: 4,718,466 km (0.091 R)
• M11: 5,037,260 km (0.061 R)
• M12: 7,403,299 km (0.119 R)
• M13: 8,906,908 km (0.116 R)
• M14: 9,478,371 km (0.096 R)
• M15: 10,336,764 km (0.09 R)
• M16: 11,720,096 km (0.083 R)
• M17: 12,506,532 km (0.113 R)
• M18: 13,067,075 km (0.115 R)
• M19: 13,327,525 km (0.105 R)
• M20: 14,403,732 km (0.079 R)
• M21: 16,244,384 km (0.051 R)
• M22: 18,236,728 km (0.075 R)
• M23: 19,024,212 km (0.104 R)
• M24: 20,178,210 km (0.063 R)
• M25: 20,666,647 km (0.082 R)
• M26: 22,253,431 km (0.044 R)
• M27: 28,796,693 km (0.063 R)
• M28: 29,416,028 km (0.072 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 813.6

Radius: 3.5

Gravity: 66.42 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 6.11 AU - 6.63 AU

Year: 10381 Days

Day: 16.9 Hours

Environment

Temp: -217 °C

Axial Tilt: 157 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 89,857,111 km

• M1: 44,281 km (0.118 R)
• M2: 394,639 km (0.073 R)
• M3: 511,475 km (0.07 R)
• M4: 905,666 km (0.11 R)
• M5: 1,067,082 km (0.116 R)
• M6: 1,184,965 km (0.1 R)
• M7: 1,548,039 km (0.113 R)
• M8: 2,272,990 km (0.067 R)
• M9: 2,409,423 km (0.096 R)
• M10: 4,625,716 km (0.065 R)
• M11: 5,442,221 km (0.105 R)
• M12: 5,651,658 km (0.105 R)
• M13: 6,236,286 km (0.102 R)
• M14: 7,063,712 km (0.102 R)
• M15: 7,397,166 km (0.094 R)
• M16: 10,777,330 km (0.078 R)
• M17: 14,126,826 km (0.12 R)
• M18: 15,893,876 km (0.09 R)
• M19: 23,782,621 km (0.113 R)
• M20: 26,666,868 km (0.039 R)
• M21: 27,270,495 km (0.068 R)
• M22: 36,948,729 km (0.102 R)
• M23: 37,322,425 km (0.063 R)
• M24: 39,099,199 km (0.105 R)
• M25: 49,435,215 km (0.054 R)
• M26: 51,266,143 km (0.089 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 815.5

Radius: 4.2

Gravity: 46.23 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 8.72 AU - 13.26 AU

Year: 23524 Days

Day: 18.6 Hours

Environment

Temp: -235 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 89,857,111 km

• M1: 52,509 km (0.086 R)
• M2: 298,597 km (0.116 R)
• M3: 1,262,905 km (0.105 R)
• M4: 1,541,307 km (0.081 R)
• M5: 1,839,605 km (0.028 R)
• M6: 2,175,153 km (0.115 R)
• M7: 2,676,156 km (0.096 R)
• M8: 3,428,484 km (0.06 R)
• M9: 4,419,121 km (0.081 R)
• M10: 4,675,233 km (0.069 R)
• M11: 5,842,994 km (0.034 R)
• M12: 6,018,023 km (0.108 R)
• M13: 6,849,339 km (0.095 R)
• M14: 8,290,415 km (0.083 R)
• M15: 8,623,569 km (0.09 R)
• M16: 9,139,981 km (0.102 R)
• M17: 9,860,295 km (0.093 R)
• M18: 10,617,709 km (0.098 R)
• M19: 10,878,608 km (0.09 R)
• M20: 11,345,353 km (0.084 R)
• M21: 11,825,412 km (0.108 R)
• M22: 15,075,127 km (0.034 R)
• M23: 20,536,646 km (0.069 R)
• M24: 20,941,608 km (0.111 R)
• M25: 22,294,421 km (0.101 R)
• M26: 24,828,908 km (0.075 R)
• M27: 26,462,068 km (0.117 R)
• M28: 30,460,969 km (0.114 R)
• M29: 35,565,248 km (0.117 R)
• M30: 42,669,352 km (0.095 R)
• M31: 43,162,875 km (0.094 R)
• M32: 43,328,330 km (0.112 R)
• M33: 46,551,566 km (0.105 R)
• M34: 54,621,773 km (0.074 R)
• M35: 65,738,391 km (0.108 R)
• M36: 66,617,129 km (0.029 R)
• M37: 67,949,896 km (0.118 R)
• M38: 69,527,106 km (0.093 R)
• M39: 73,694,604 km (0.106 R)
• M40: 75,119,823 km (0.116 R)
• M41: 86,662,794 km (0.1 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 212 - 11,380 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit