🌌 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: 2.4

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.42 AU - 0.66 AU

Year: 260 Days

Day: 39.3 Hours

Environment

Temp: -114 °C

Axial Tilt: 49 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 84,650,093 km

• M1: 41,139 km (0.08 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 114.3

Radius: 12

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.72 AU - 0.78 AU

Year: 426 Days

Day: 14.5 Hours

Environment

Temp: -136 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 84,650,093 km

• M1: 149,448 km (0.098 R)
• M2: 571,015 km (0.12 R)
• M3: 1,266,645 km (0.079 R)
• M4: 1,715,140 km (0.117 R)
• M5: 2,122,495 km (0.074 R)
• M6: 2,626,639 km (0.067 R)
• M7: 3,182,545 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 441.7

Radius: 8.7

Gravity: 5.84 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.21 AU - 1.29 AU

Year: 917 Days

Day: 15 Hours

Environment

Temp: -172 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 84,650,093 km

• M1: 108,159 km (0.06 R)
• M2: 550,071 km (0.053 R)
• M3: 922,420 km (0.073 R)
• M4: 1,671,906 km (0.06 R)
• M5: 2,147,178 km (0.091 R)
• M6: 3,146,193 km (0.097 R)
• M7: 3,742,340 km (0.052 R)
• M8: 4,113,343 km (0.109 R)
• M9: 4,395,634 km (0.065 R)
• M10: 5,638,194 km (0.095 R)
• M11: 6,086,838 km (0.093 R)
• M12: 6,538,175 km (0.066 R)
• M13: 7,279,283 km (0.07 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 900.3

Radius: 10.3

Gravity: 8.49 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 1.8 AU - 1.92 AU

Year: 1664 Days

Day: 6.6 Hours

Environment

Temp: -182 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 84,650,093 km

• M1: 128,056 km (0.107 R)
• M2: 473,926 km (0.104 R)
• M3: 797,955 km (0.116 R)
• M4: 1,691,952 km (0.076 R)
• M5: 2,027,650 km (0.117 R)
• M6: 2,473,900 km (0.093 R)
• M7: 3,514,503 km (0.106 R)
• M8: 5,148,411 km (0.068 R)
• M9: 5,649,264 km (0.102 R)
• M10: 6,539,073 km (0.076 R)
• M11: 7,434,266 km (0.048 R)
• M12: 8,105,213 km (0.072 R)
• M13: 8,532,913 km (0.114 R)
• M14: 10,939,344 km (0.039 R)
• M15: 15,884,900 km (0.071 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 322.3

Radius: 4

Gravity: 20.14 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 4.93 AU - 7.39 AU

Year: 10030 Days

Day: 15.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 84,650,093 km

• M1: 49,816 km (0.102 R)
• M2: 233,073 km (0.098 R)
• M3: 430,991 km (0.111 R)
• M4: 585,077 km (0.073 R)
• M5: 1,139,786 km (0.095 R)
• M6: 1,790,238 km (0.102 R)
• M7: 3,015,743 km (0.1 R)
• M8: 3,162,948 km (0.045 R)
• M9: 3,922,905 km (0.108 R)
• M10: 6,358,508 km (0.078 R)
• M11: 7,366,050 km (0.108 R)
• M12: 8,027,272 km (0.119 R)
• M13: 8,517,205 km (0.026 R)
• M14: 11,119,610 km (0.069 R)
• M15: 11,319,921 km (0.11 R)
• M16: 12,845,371 km (0.096 R)
• M17: 13,628,516 km (0.116 R)
• M18: 14,031,831 km (0.109 R)
• M19: 16,555,248 km (0.045 R)
• M20: 21,612,255 km (0.088 R)
• M21: 22,239,519 km (0.03 R)
• M22: 29,863,026 km (0.107 R)
• M23: 30,250,185 km (0.07 R)
• M24: 32,033,990 km (0.09 R)
• M25: 36,027,655 km (0.03 R)
• M26: 36,246,517 km (0.091 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 103

Radius: 6.4

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 5.22 AU - 8 AU

Year: 11148 Days

Day: 16.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 84,650,093 km

• M1: 79,586 km (0.119 R)
• M2: 311,612 km (0.059 R)
• M3: 781,050 km (0.099 R)
• M4: 1,397,394 km (0.1 R)
• M5: 1,990,549 km (0.074 R)
• M6: 2,553,037 km (0.108 R)
• M7: 2,989,564 km (0.117 R)
• M8: 6,814,931 km (0.079 R)
• M9: 7,583,714 km (0.114 R)
• M10: 12,217,209 km (0.049 R)
• M11: 15,816,833 km (0.112 R)
• M12: 17,399,280 km (0.094 R)
• M13: 17,642,376 km (0.1 R)
• M14: 17,887,717 km (0.093 R)
• M15: 20,132,582 km (0.111 R)
• M16: 21,357,190 km (0.101 R)
• M17: 24,482,290 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 975.6

Radius: 5.9

Gravity: 28.03 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 8.3 AU - 11 AU

Year: 19665 Days

Day: 17.3 Hours

Environment

Temp: -219 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 84,650,093 km

• M1: 76,445 km (0.1 R)
• M2: 281,394 km (0.063 R)
• M3: 1,459,327 km (0.099 R)
• M4: 2,222,725 km (0.113 R)
• M5: 2,742,129 km (0.058 R)
• M6: 3,426,988 km (0.045 R)
• M7: 7,678,111 km (0.099 R)
• M8: 7,935,569 km (0.086 R)
• M9: 9,252,628 km (0.105 R)
• M10: 13,689,252 km (0.102 R)
• M11: 16,832,752 km (0.067 R)
• M12: 18,709,757 km (0.103 R)
• M13: 19,650,877 km (0.091 R)
• M14: 21,020,745 km (0.071 R)
• M15: 23,515,289 km (0.079 R)
• M16: 24,945,595 km (0.096 R)
• M17: 25,624,918 km (0.08 R)
• M18: 25,969,293 km (0.11 R)
• M19: 27,736,941 km (0.118 R)
• M20: 27,978,542 km (0.102 R)
• M21: 31,905,336 km (0.109 R)
• M22: 40,674,315 km (0.103 R)
• M23: 51,830,875 km (0.118 R)
• M24: 59,296,258 km (0.034 R)
• M25: 62,763,188 km (0.034 R)
• M26: 66,578,682 km (0.086 R)
• M27: 68,763,708 km (0.096 R)
• M28: 77,982,677 km (0.093 R)
• M29: 79,189,932 km (0.112 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 391 - 18,075 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit