🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.88

Radius: 1.29

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 0.63 AU - 0.65 AU

Year: 331 Days

Day: 19.1 Hours

Environment

Temp: -127 °C

Axial Tilt: 20.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831.8

Radius: 14.4

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.71 AU - 0.89 AU

Year: 462 Days

Day: 11.2 Hours

Environment

Temp: -139 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 39,376,252 km

• M1: 183,108 km (0.071 R)
• M2: 640,129 km (0.117 R)
• M3: 1,268,141 km (0.11 R)
• M4: 2,228,859 km (0.053 R)
• M5: 3,001,980 km (0.032 R)
• M6: 3,788,865 km (0.074 R)
• M7: 4,801,942 km (0.106 R)
• M8: 6,024,905 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 813.1

Radius: 8.3

Gravity: 11.8 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.89 AU - 1.43 AU

Year: 807 Days

Day: 9.4 Hours

Environment

Temp: -164 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 39,376,252 km

• M1: 103,223 km (0.093 R)
• M2: 439,967 km (0.091 R)
• M3: 707,598 km (0.096 R)
• M4: 1,095,056 km (0.053 R)
• M5: 1,405,771 km (0.112 R)
• M6: 1,714,092 km (0.045 R)
• M7: 2,188,916 km (0.074 R)
• M8: 3,222,338 km (0.117 R)
• M9: 5,176,685 km (0.098 R)
• M10: 6,147,874 km (0.049 R)
• M11: 6,446,471 km (0.053 R)
• M12: 7,072,987 km (0.118 R)
• M13: 7,424,842 km (0.102 R)
• M14: 8,189,287 km (0.105 R)
• M15: 8,816,401 km (0.092 R)
• M16: 9,196,828 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 409.8

Radius: 8

Gravity: 6.4 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 1.57 AU - 1.59 AU

Year: 1282 Days

Day: 7.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 49.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 39,376,252 km

• M1: 99,483 km (0.118 R)
• M2: 393,742 km (0.119 R)
• M3: 644,468 km (0.089 R)
• M4: 1,070,223 km (0.074 R)
• M5: 2,167,224 km (0.101 R)
• M6: 2,582,658 km (0.118 R)
• M7: 3,023,672 km (0.03 R)
• M8: 3,817,289 km (0.085 R)
• M9: 4,442,159 km (0.117 R)
• M10: 4,797,454 km (0.078 R)
• M11: 5,210,045 km (0.056 R)
• M12: 5,565,041 km (0.039 R)
• M13: 5,999,623 km (0.088 R)
• M14: 6,323,801 km (0.08 R)
• M15: 7,891,138 km (0.104 R)
• M16: 8,628,506 km (0.114 R)
• M17: 9,268,037 km (0.103 R)
• M18: 9,878,995 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 726.2

Radius: 8.6

Gravity: 9.82 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.29 AU - 1.89 AU

Year: 1295 Days

Day: 10.6 Hours

Environment

Temp: -170 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 39,376,252 km

• M1: 107,112 km (0.114 R)
• M2: 448,494 km (0.058 R)
• M3: 740,210 km (0.081 R)
• M4: 1,556,865 km (0.12 R)
• M5: 1,891,067 km (0.07 R)
• M6: 4,323,977 km (0.097 R)
• M7: 5,193,290 km (0.056 R)
• M8: 6,105,388 km (0.094 R)
• M9: 6,479,682 km (0.119 R)
• M10: 7,019,431 km (0.034 R)
• M11: 7,803,175 km (0.049 R)
• M12: 8,644,214 km (0.112 R)
• M13: 9,731,491 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 463.6

Radius: 11.9

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 2.35 AU - 2.51 AU

Year: 2446 Days

Day: 5.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 39,376,252 km

• M1: 149,149 km (0.03 R)
• M2: 610,808 km (0.075 R)
• M3: 994,377 km (0.034 R)
• M4: 1,444,816 km (0.099 R)
• M5: 2,078,662 km (0.03 R)
• M6: 3,430,279 km (0.084 R)
• M7: 3,905,103 km (0.096 R)
• M8: 4,484,196 km (0.063 R)
• M9: 6,545,505 km (0.12 R)
• M10: 8,688,495 km (0.108 R)
• M11: 9,075,654 km (0.063 R)
• M12: 10,522,714 km (0.107 R)
• M13: 14,533,732 km (0.082 R)
• M14: 15,926,489 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 715.2

Radius: 13.7

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 2.34 AU - 2.76 AU

Year: 2629 Days

Day: 13.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 46 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 39,376,252 km

• M1: 170,691 km (0.037 R)
• M2: 920,924 km (0.066 R)
• M3: 1,353,113 km (0.052 R)
• M4: 2,455,799 km (0.079 R)
• M5: 3,608,151 km (0.097 R)
• M6: 4,772,920 km (0.066 R)
• M7: 5,455,236 km (0.059 R)
• M8: 7,252,206 km (0.051 R)
• M9: 7,773,255 km (0.071 R)
• M10: 8,652,142 km (0.082 R)
• M11: 9,133,399 km (0.101 R)
• M12: 10,763,866 km (0.083 R)
• M13: 12,624,564 km (0.065 R)
• M14: 15,278,580 km (0.065 R)
• M15: 15,729,169 km (0.073 R)
• M16: 17,350,211 km (0.057 R)
• M17: 19,427,527 km (0.049 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 844.1

Radius: 13.7

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 2.14 AU - 3.22 AU

Year: 2833 Days

Day: 13.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 39,376,252 km

• M1: 459,415 km (0.043 R)
• M2: 1,154,447 km (0.111 R)
• M3: 2,311,287 km (0.088 R)
• M4: 2,773,993 km (0.1 R)
• M5: 3,614,584 km (0.106 R)
• M6: 4,506,486 km (0.12 R)
• M7: 5,437,883 km (0.046 R)
• M8: 7,427,534 km (0.067 R)
• M9: 8,726,941 km (0.063 R)
• M10: 9,674,046 km (0.111 R)
• M11: 10,211,850 km (0.074 R)
• M12: 14,704,274 km (0.117 R)
• M13: 17,186,402 km (0.066 R)
• M14: 18,034,173 km (0.065 R)
• M15: 20,182,847 km (0.04 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 254.5

Radius: 6.6

Gravity: 5.84 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 5.9 AU - 8.3 AU

Year: 12215 Days

Day: 17.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 39,376,252 km

• M1: 82,428 km (0.105 R)
• M2: 343,178 km (0.091 R)
• M3: 764,744 km (0.091 R)
• M4: 991,684 km (0.082 R)
• M5: 1,230,143 km (0.056 R)
• M6: 1,977,235 km (0.093 R)
• M7: 2,272,392 km (0.099 R)
• M8: 3,014,098 km (0.056 R)
• M9: 3,406,493 km (0.07 R)
• M10: 4,032,859 km (0.096 R)
• M11: 4,319,938 km (0.065 R)
• M12: 4,905,913 km (0.051 R)
• M13: 5,703,269 km (0.12 R)
• M14: 8,569,564 km (0.085 R)
• M15: 10,001,366 km (0.085 R)
• M16: 11,847,403 km (0.103 R)
• M17: 13,617,894 km (0.111 R)
• M18: 15,056,278 km (0.093 R)
• M19: 16,859,082 km (0.065 R)
• M20: 17,881,733 km (0.08 R)
• M21: 18,657,547 km (0.119 R)
• M22: 19,751,407 km (0.112 R)
• M23: 22,876,357 km (0.071 R)
• M24: 24,128,491 km (0.1 R)
• M25: 24,555,892 km (0.067 R)
• M26: 24,988,230 km (0.038 R)
• M27: 25,602,180 km (0.104 R)
• M28: 25,868,314 km (0.079 R)
• M29: 26,859,998 km (0.118 R)
• M30: 30,480,865 km (0.064 R)
• M31: 33,137,574 km (0.063 R)
• M32: 33,985,195 km (0.069 R)
• M33: 35,723,373 km (0.11 R)
• M34: 38,789,830 km (0.093 R)
• M35: 39,258,520 km (0.079 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 345 - 11,335 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit