🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

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: 4.56

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.51 AU - 0.57 AU

Year: 256 Days

Day: 43.1 Hours

Environment

Temp: -124 °C

Axial Tilt: 26.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 422.9

Radius: 14.9

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.66 AU - 0.92 AU

Year: 453 Days

Day: 5.5 Hours

Environment

Temp: -136 °C

Axial Tilt: 52.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 38,856,316 km

• M1: 186,549 km (0.113 R)
• M2: 666,010 km (0.098 R)
• M3: 1,187,209 km (0.068 R)
• M4: 2,718,642 km (0.096 R)
• M5: 3,247,620 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 163.3

Radius: 11.7

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.69 AU - 0.95 AU

Year: 479 Days

Day: 6.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 38,856,316 km

• M1: 146,008 km (0.049 R)
• M2: 525,238 km (0.102 R)
• M3: 1,149,660 km (0.1 R)
• M4: 1,520,214 km (0.119 R)
• M5: 1,958,685 km (0.108 R)
• M6: 2,589,988 km (0.049 R)
• M7: 2,982,383 km (0.068 R)
• M8: 3,424,894 km (0.099 R)
• M9: 3,866,058 km (0.065 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54

Radius: 14.6

Gravity: 0.25 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.76 AU - 1.04 AU

Year: 551 Days

Day: 14.6 Hours

Environment

Temp: -148 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 38,856,316 km

• M1: 181,612 km (0.116 R)
• M2: 803,640 km (0.079 R)
• M3: 1,342,192 km (0.099 R)
• M4: 2,302,162 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 346.6

Radius: 9.9

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.84 AU - 1.06 AU

Year: 598 Days

Day: 9.4 Hours

Environment

Temp: -146 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 38,856,316 km

• M1: 124,017 km (0.113 R)
• M2: 449,392 km (0.115 R)
• M3: 833,410 km (0.118 R)
• M4: 1,291,329 km (0.087 R)
• M5: 2,554,234 km (0.112 R)
• M6: 3,150,082 km (0.102 R)
• M7: 3,634,031 km (0.101 R)
• M8: 4,633,046 km (0.109 R)
• M9: 5,228,595 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 232.2

Radius: 11

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.17 AU - 1.23 AU

Year: 849 Days

Day: 11.5 Hours

Environment

Temp: -170 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 38,856,316 km

• M1: 136,732 km (0.12 R)
• M2: 494,571 km (0.098 R)
• M3: 1,153,998 km (0.089 R)
• M4: 1,570,927 km (0.098 R)
• M5: 2,020,020 km (0.106 R)
• M6: 2,855,823 km (0.092 R)
• M7: 3,749,371 km (0.108 R)
• M8: 4,297,199 km (0.091 R)
• M9: 5,024,544 km (0.113 R)
• M10: 5,744,109 km (0.06 R)
• M11: 6,193,202 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 951.6

Radius: 13.3

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.2 AU - 1.54 AU

Year: 1035 Days

Day: 10.4 Hours

Environment

Temp: -177 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 38,856,316 km

• M1: 167,550 km (0.094 R)
• M2: 717,023 km (0.07 R)
• M3: 1,297,163 km (0.04 R)
• M4: 1,996,234 km (0.066 R)
• M5: 2,434,107 km (0.067 R)
• M6: 2,896,514 km (0.112 R)
• M7: 3,417,863 km (0.071 R)
• M8: 3,968,532 km (0.113 R)
• M9: 4,633,196 km (0.113 R)
• M10: 5,110,114 km (0.057 R)
• M11: 5,640,887 km (0.065 R)
• M12: 6,299,118 km (0.101 R)
• M13: 8,641,820 km (0.054 R)
• M14: 9,977,879 km (0.058 R)
• M15: 10,646,731 km (0.108 R)
• M16: 11,277,435 km (0.093 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 827.9

Radius: 10.3

Gravity: 7.8 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 3.13 AU - 3.21 AU

Year: 3644 Days

Day: 6.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 38,856,316 km

• M1: 128,205 km (0.114 R)
• M2: 721,810 km (0.098 R)
• M3: 2,618,412 km (0.108 R)
• M4: 3,815,045 km (0.12 R)
• M5: 4,680,319 km (0.069 R)
• M6: 5,371,012 km (0.058 R)
• M7: 6,548,048 km (0.1 R)
• M8: 7,854,636 km (0.101 R)
• M9: 8,314,650 km (0.072 R)
• M10: 10,760,276 km (0.067 R)
• M11: 11,239,587 km (0.095 R)
• M12: 13,399,780 km (0.069 R)
• M13: 14,108,874 km (0.12 R)
• M14: 14,842,652 km (0.101 R)
• M15: 15,601,861 km (0.11 R)
• M16: 16,443,648 km (0.055 R)
• M17: 17,374,596 km (0.099 R)
• M18: 18,525,303 km (0.053 R)
• M19: 19,726,125 km (0.116 R)
• M20: 21,589,366 km (0.054 R)
• M21: 24,975,963 km (0.067 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 345.4

Radius: 12.8

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 3.22 AU - 4.54 AU

Year: 4935 Days

Day: 5 Hours

Environment

Temp: -215 °C

Axial Tilt: 46 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 38,856,316 km

• M1: 159,172 km (0.106 R)
• M2: 635,342 km (0.091 R)
• M3: 1,651,112 km (0.12 R)
• M4: 2,093,772 km (0.074 R)
• M5: 3,012,153 km (0.103 R)
• M6: 4,824,382 km (0.103 R)
• M7: 5,881,440 km (0.061 R)
• M8: 8,311,209 km (0.081 R)
• M9: 9,252,329 km (0.117 R)
• M10: 11,303,316 km (0.065 R)
• M11: 13,064,681 km (0.088 R)
• M12: 13,641,680 km (0.101 R)
• M13: 17,933,793 km (0.065 R)
• M14: 22,025,893 km (0.07 R)

Planet 10 - Gas Giant

Semi-Major Axis: 4.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 853.9

Radius: 11

Gravity: 7.06 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 4.46 AU - 4.9 AU

Year: 6537 Days

Day: 11.9 Hours

Environment

Temp: -217 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 38,856,316 km

• M1: 136,882 km (0.104 R)
• M2: 495,319 km (0.056 R)
• M3: 1,699,282 km (0.096 R)
• M4: 2,066,395 km (0.119 R)
• M5: 2,614,821 km (0.119 R)
• M6: 3,525,872 km (0.069 R)
• M7: 3,930,235 km (0.088 R)
• M8: 4,890,205 km (0.072 R)
• M9: 6,065,894 km (0.088 R)
• M10: 6,473,848 km (0.096 R)
• M11: 7,232,159 km (0.077 R)
• M12: 7,730,620 km (0.031 R)
• M13: 8,796,355 km (0.095 R)
• M14: 10,097,707 km (0.082 R)
• M15: 11,218,045 km (0.078 R)
• M16: 12,746,187 km (0.113 R)
• M17: 13,191,241 km (0.043 R)
• M18: 14,349,278 km (0.103 R)
• M19: 15,323,459 km (0.106 R)
• M20: 16,471,623 km (0.115 R)
• M21: 23,831,539 km (0.101 R)
• M22: 24,764,581 km (0.103 R)
• M23: 26,075,806 km (0.083 R)
• M24: 26,975,338 km (0.058 R)
• M25: 31,786,107 km (0.097 R)
• M26: 35,914,110 km (0.119 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 263 - 20,139 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit