🌌 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 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 598.7

Radius: 14.9

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.63 AU - 0.67 AU

Year: 355 Days

Day: 14.8 Hours

Environment

Temp: -151 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 46,784,458 km

• M1: 185,352 km (0.114 R)
• M2: 712,684 km (0.078 R)
• M3: 1,225,805 km (0.056 R)
• M4: 1,828,086 km (0.097 R)
• M5: 2,345,545 km (0.093 R)
• M6: 2,882,751 km (0.081 R)
• M7: 3,391,085 km (0.094 R)
• M8: 3,886,702 km (0.097 R)
• M9: 4,728,938 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 152.5

Radius: 14.9

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.87 AU - 1.17 AU

Year: 699 Days

Day: 13.6 Hours

Environment

Temp: -175 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 46,784,458 km

• M1: 185,352 km (0.074 R)
• M2: 723,007 km (0.107 R)
• M3: 1,204,712 km (0.107 R)
• M4: 2,867,941 km (0.073 R)
• M5: 3,794,849 km (0.106 R)
• M6: 4,581,285 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 405.9

Radius: 12.4

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.35 AU - 2.21 AU

Year: 1611 Days

Day: 7.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 46,784,458 km

• M1: 154,235 km (0.102 R)
• M2: 1,399,189 km (0.098 R)
• M3: 2,619,908 km (0.115 R)
• M4: 4,526,981 km (0.115 R)
• M5: 5,694,144 km (0.102 R)
• M6: 6,314,077 km (0.119 R)
• M7: 8,391,992 km (0.117 R)
• M8: 9,136,840 km (0.12 R)
• M9: 10,758,929 km (0.115 R)
• M10: 11,226,722 km (0.064 R)
• M11: 11,883,307 km (0.067 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 456.6

Radius: 9.8

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 2.18 AU - 3.48 AU

Year: 3229 Days

Day: 13.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 46,784,458 km

• M1: 121,922 km (0.074 R)
• M2: 498,909 km (0.096 R)
• M3: 933,192 km (0.061 R)
• M4: 1,461,870 km (0.056 R)
• M5: 1,767,648 km (0.097 R)
• M6: 2,570,091 km (0.093 R)
• M7: 3,292,350 km (0.097 R)
• M8: 3,710,925 km (0.053 R)
• M9: 4,611,354 km (0.101 R)
• M10: 7,585,510 km (0.086 R)
• M11: 8,285,777 km (0.059 R)
• M12: 10,491,897 km (0.077 R)
• M13: 11,079,517 km (0.116 R)
• M14: 13,975,583 km (0.107 R)
• M15: 14,832,330 km (0.072 R)
• M16: 16,079,826 km (0.047 R)
• M17: 17,020,348 km (0.117 R)
• M18: 17,558,452 km (0.064 R)
• M19: 19,068,193 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 143.4

Radius: 15

Gravity: 0.64 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 3.22 AU - 3.34 AU

Year: 4029 Days

Day: 10.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 46,784,458 km

• M1: 237,262 km (0.052 R)
• M2: 713,133 km (0.089 R)
• M3: 1,282,951 km (0.092 R)
• M4: 2,575,178 km (0.116 R)
• M5: 4,188,890 km (0.048 R)
• M6: 5,116,846 km (0.058 R)
• M7: 6,031,936 km (0.088 R)
• M8: 6,788,153 km (0.092 R)
• M9: 9,740,317 km (0.099 R)
• M10: 11,146,687 km (0.045 R)
• M11: 13,546,835 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 913.8

Radius: 12

Gravity: 6.35 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 3.18 AU - 4.46 AU

Year: 5064 Days

Day: 14.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 46,784,458 km

• M1: 149,448 km (0.043 R)
• M2: 555,307 km (0.113 R)
• M3: 1,460,973 km (0.064 R)
• M4: 2,083,599 km (0.089 R)
• M5: 2,466,270 km (0.053 R)
• M6: 3,109,990 km (0.115 R)
• M7: 3,548,312 km (0.06 R)
• M8: 5,117,893 km (0.068 R)
• M9: 6,660,845 km (0.111 R)
• M10: 7,179,202 km (0.113 R)
• M11: 7,613,185 km (0.11 R)
• M12: 8,336,341 km (0.113 R)
• M13: 8,980,211 km (0.1 R)
• M14: 9,442,019 km (0.062 R)
• M15: 10,186,867 km (0.116 R)
• M16: 12,246,231 km (0.065 R)
• M17: 13,239,262 km (0.109 R)
• M18: 13,949,104 km (0.061 R)
• M19: 20,428,786 km (0.119 R)
• M20: 23,756,142 km (0.057 R)
• M21: 24,155,867 km (0.102 R)
• M22: 25,133,340 km (0.059 R)
• M23: 26,993,739 km (0.098 R)
• M24: 33,423,156 km (0.053 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 611.5

Radius: 12.6

Gravity: 3.85 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 3.15 AU - 5.03 AU

Year: 5610 Days

Day: 12.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 46,784,458 km

• M1: 156,779 km (0.07 R)
• M2: 674,686 km (0.06 R)
• M3: 2,201,183 km (0.118 R)
• M4: 2,817,676 km (0.087 R)
• M5: 4,038,095 km (0.092 R)
• M6: 4,994,026 km (0.115 R)
• M7: 6,251,545 km (0.077 R)
• M8: 7,819,780 km (0.086 R)
• M9: 9,260,407 km (0.088 R)
• M10: 9,721,169 km (0.067 R)
• M11: 11,864,757 km (0.108 R)
• M12: 12,459,109 km (0.106 R)
• M13: 20,726,785 km (0.1 R)
• M14: 26,602,241 km (0.113 R)
• M15: 27,364,293 km (0.109 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.2

Radius: 9.3

Gravity: 2.44 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 4.04 AU - 4.64 AU

Year: 6132 Days

Day: 13.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 58 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 46,784,458 km

• M1: 116,387 km (0.067 R)
• M2: 466,147 km (0.091 R)
• M3: 828,772 km (0.097 R)
• M4: 2,499,631 km (0.119 R)
• M5: 3,110,888 km (0.098 R)
• M6: 5,420,679 km (0.042 R)
• M7: 5,848,529 km (0.047 R)
• M8: 6,502,720 km (0.089 R)
• M9: 9,237,818 km (0.109 R)
• M10: 10,733,498 km (0.12 R)
• M11: 11,495,699 km (0.039 R)
• M12: 16,456,364 km (0.064 R)
• M13: 18,944,027 km (0.107 R)
• M14: 20,056,138 km (0.085 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 198.4

Radius: 4.3

Gravity: 10.73 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 8.4 AU - 9.34 AU

Year: 17917 Days

Day: 22.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 46,784,458 km

• M1: 53,556 km (0.05 R)
• M2: 368,908 km (0.103 R)
• M3: 1,353,412 km (0.059 R)
• M4: 1,939,237 km (0.049 R)
• M5: 2,557,376 km (0.066 R)
• M6: 2,741,082 km (0.1 R)
• M7: 3,794,849 km (0.108 R)
• M8: 5,189,251 km (0.062 R)
• M9: 7,618,272 km (0.092 R)
• M10: 8,216,364 km (0.099 R)
• M11: 10,046,694 km (0.052 R)
• M12: 10,870,529 km (0.053 R)
• M13: 11,794,147 km (0.109 R)
• M14: 13,672,497 km (0.1 R)
• M15: 17,206,597 km (0.062 R)
• M16: 22,059,552 km (0.12 R)
• M17: 36,205,527 km (0.101 R)
• M18: 36,561,121 km (0.088 R)
• M19: 44,849,142 km (0.11 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 248 - 19,175 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit