🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.15

Radius: 1.06

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.43 AU - 0.67 AU

Year: 263 Days

Day: 22.9 Hours

Environment

Temp: -125 °C

Axial Tilt: 34.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.57 AU - 0.65 AU

Year: 308 Days

Day: 32.7 Hours

Environment

Temp: -131 °C

Axial Tilt: 19.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 177.9

Radius: 8.6

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.72 AU - 0.74 AU

Year: 403 Days

Day: 5.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 33,508,169 km

• M1: 106,962 km (0.101 R)
• M2: 376,388 km (0.043 R)
• M3: 886,667 km (0.117 R)
• M4: 1,267,094 km (0.085 R)
• M5: 1,619,247 km (0.049 R)
• M6: 2,078,662 km (0.106 R)
• M7: 2,378,905 km (0.098 R)
• M8: 3,318,230 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 635.2

Radius: 15

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 0.94 AU - 0.96 AU

Year: 598 Days

Day: 6.6 Hours

Environment

Temp: -156 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 33,508,169 km

• M1: 186,997 km (0.063 R)
• M2: 923,168 km (0.109 R)
• M3: 1,530,536 km (0.095 R)
• M4: 2,142,391 km (0.082 R)
• M5: 2,615,120 km (0.064 R)
• M6: 3,205,882 km (0.07 R)
• M7: 3,776,897 km (0.119 R)
• M8: 4,929,699 km (0.104 R)
• M9: 5,749,046 km (0.071 R)
• M10: 6,248,703 km (0.087 R)
• M11: 6,777,532 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658.4

Radius: 11.5

Gravity: 4.98 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 1.11 AU - 1.35 AU

Year: 881 Days

Day: 7.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 33,508,169 km

• M1: 143,614 km (0.119 R)
• M2: 598,840 km (0.111 R)
• M3: 1,424,770 km (0.067 R)
• M4: 1,942,229 km (0.05 R)
• M5: 2,459,838 km (0.119 R)
• M6: 3,584,963 km (0.091 R)
• M7: 3,986,783 km (0.105 R)
• M8: 4,435,427 km (0.098 R)
• M9: 4,935,533 km (0.111 R)
• M10: 5,550,231 km (0.115 R)
• M11: 6,132,017 km (0.031 R)
• M12: 6,665,782 km (0.116 R)
• M13: 7,137,913 km (0.055 R)
• M14: 9,063,537 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 507.6

Radius: 10.7

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.08 AU - 1.42 AU

Year: 902 Days

Day: 13.7 Hours

Environment

Temp: -172 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 33,508,169 km

• M1: 133,142 km (0.05 R)
• M2: 476,768 km (0.084 R)
• M3: 916,137 km (0.028 R)
• M4: 1,266,346 km (0.088 R)
• M5: 1,970,653 km (0.118 R)
• M6: 3,093,235 km (0.116 R)
• M7: 3,476,056 km (0.107 R)
• M8: 4,071,456 km (0.087 R)
• M9: 4,418,373 km (0.045 R)
• M10: 4,853,853 km (0.11 R)
• M11: 5,189,999 km (0.07 R)
• M12: 5,637,147 km (0.097 R)
• M13: 6,109,727 km (0.064 R)
• M14: 6,481,477 km (0.109 R)
• M15: 6,824,505 km (0.113 R)
• M16: 7,735,855 km (0.051 R)
• M17: 8,547,125 km (0.104 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 149.9

Radius: 11.6

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 1.08 AU - 1.78 AU

Year: 1104 Days

Day: 8.5 Hours

Environment

Temp: -167 °C

Axial Tilt: 41.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 33,508,169 km

• M1: 152,291 km (0.06 R)
• M2: 733,030 km (0.064 R)
• M3: 1,244,056 km (0.103 R)
• M4: 2,100,354 km (0.105 R)
• M5: 2,674,212 km (0.097 R)
• M6: 3,314,341 km (0.074 R)
• M7: 3,730,223 km (0.09 R)
• M8: 4,932,990 km (0.1 R)
• M9: 6,492,996 km (0.043 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 837.8

Radius: 13.1

Gravity: 4.88 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.47 AU - 1.69 AU

Year: 1282 Days

Day: 11.2 Hours

Environment

Temp: -179 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 33,508,169 km

• M1: 166,802 km (0.063 R)
• M2: 592,707 km (0.104 R)
• M3: 1,011,730 km (0.067 R)
• M4: 1,533,827 km (0.11 R)
• M5: 2,484,521 km (0.112 R)
• M6: 3,290,555 km (0.073 R)
• M7: 3,830,154 km (0.081 R)
• M8: 4,770,078 km (0.107 R)
• M9: 5,421,427 km (0.118 R)
• M10: 5,925,721 km (0.117 R)
• M11: 6,753,446 km (0.078 R)
• M12: 7,364,703 km (0.054 R)
• M13: 8,293,407 km (0.049 R)
• M14: 10,450,159 km (0.09 R)
• M15: 12,996,614 km (0.079 R)

Planet 9 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 884.2

Radius: 10

Gravity: 8.84 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 2.39 AU - 2.43 AU

Year: 2416 Days

Day: 11.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 33,508,169 km

• M1: 128,654 km (0.082 R)
• M2: 552,016 km (0.038 R)
• M3: 1,411,905 km (0.12 R)
• M4: 2,199,837 km (0.046 R)
• M5: 3,772,410 km (0.114 R)
• M6: 5,649,564 km (0.106 R)
• M7: 7,633,680 km (0.033 R)
• M8: 8,990,982 km (0.083 R)
• M9: 9,525,644 km (0.048 R)
• M10: 9,931,204 km (0.089 R)
• M11: 11,136,365 km (0.117 R)
• M12: 12,965,797 km (0.113 R)
• M13: 13,788,137 km (0.084 R)
• M14: 15,435,807 km (0.113 R)
• M15: 16,995,365 km (0.109 R)
• M16: 18,260,066 km (0.046 R)

Planet 10 - Gas Giant

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 701.1

Radius: 8.3

Gravity: 10.18 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 4.22 AU - 4.4 AU

Year: 5777 Days

Day: 5.8 Hours

Environment

Temp: -223 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 33,508,169 km

• M1: 104,419 km (0.096 R)
• M2: 435,180 km (0.107 R)
• M3: 790,326 km (0.092 R)
• M4: 1,117,795 km (0.03 R)
• M5: 1,523,206 km (0.051 R)
• M6: 1,850,825 km (0.095 R)
• M7: 2,225,119 km (0.11 R)
• M8: 2,631,576 km (0.072 R)
• M9: 3,066,756 km (0.1 R)
• M10: 4,057,393 km (0.083 R)
• M11: 4,329,213 km (0.085 R)
• M12: 4,692,736 km (0.103 R)
• M13: 4,992,530 km (0.087 R)
• M14: 6,032,684 km (0.069 R)
• M15: 7,760,390 km (0.079 R)
• M16: 11,365,848 km (0.04 R)
• M17: 11,758,692 km (0.052 R)
• M18: 12,780,445 km (0.103 R)
• M19: 14,941,536 km (0.033 R)
• M20: 16,016,696 km (0.112 R)
• M21: 17,790,328 km (0.069 R)
• M22: 21,350,608 km (0.108 R)
• M23: 28,653,378 km (0.092 R)
• M24: 31,064,895 km (0.117 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 317 - 12,265 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit