🌌 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 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 25.8

Radius: 13.4

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.46 AU - 0.6 AU

Year: 266 Days

Day: 14.6 Hours

Environment

Temp: -136 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 43,627,270 km

• M1: 167,101 km (0.09 R)
• M2: 673,490 km (0.077 R)
• M3: 1,120,937 km (0.076 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 947.8

Radius: 8.7

Gravity: 12.52 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.68 AU - 1 AU

Year: 531 Days

Day: 15 Hours

Environment

Temp: -169 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 43,627,270 km

• M1: 108,159 km (0.075 R)
• M2: 387,907 km (0.03 R)
• M3: 895,642 km (0.114 R)
• M4: 1,184,965 km (0.11 R)
• M5: 1,699,581 km (0.082 R)
• M6: 2,123,691 km (0.074 R)
• M7: 2,427,525 km (0.083 R)
• M8: 3,050,899 km (0.1 R)
• M9: 3,990,074 km (0.07 R)
• M10: 4,841,436 km (0.084 R)
• M11: 5,231,438 km (0.115 R)
• M12: 6,878,809 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 927.6

Radius: 13.7

Gravity: 4.94 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.21 AU - 1.25 AU

Year: 942 Days

Day: 11.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 43,627,270 km

• M1: 171,140 km (0.103 R)
• M2: 726,597 km (0.108 R)
• M3: 1,194,988 km (0.088 R)
• M4: 1,824,944 km (0.081 R)
• M5: 2,516,087 km (0.111 R)
• M6: 3,151,578 km (0.082 R)
• M7: 4,305,128 km (0.095 R)
• M8: 5,161,276 km (0.101 R)
• M9: 5,912,856 km (0.12 R)
• M10: 6,829,741 km (0.108 R)
• M11: 8,694,628 km (0.05 R)
• M12: 9,640,984 km (0.115 R)
• M13: 10,093,368 km (0.114 R)
• M14: 10,814,580 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 502.1

Radius: 14.5

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.52 AU - 2.28 AU

Year: 1808 Days

Day: 14.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 43,627,270 km

• M1: 181,163 km (0.092 R)
• M2: 730,636 km (0.052 R)
• M3: 1,406,519 km (0.116 R)
• M4: 1,957,638 km (0.091 R)
• M5: 2,772,797 km (0.118 R)
• M6: 3,230,267 km (0.047 R)
• M7: 4,393,091 km (0.069 R)
• M8: 5,507,296 km (0.101 R)
• M9: 8,408,298 km (0.054 R)
• M10: 9,191,443 km (0.112 R)
• M11: 10,558,767 km (0.115 R)
• M12: 12,170,385 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 722.4

Radius: 13.7

Gravity: 3.85 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.96 AU - 2.24 AU

Year: 2101 Days

Day: 12.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 43,627,270 km

• M1: 171,140 km (0.119 R)
• M2: 622,178 km (0.03 R)
• M3: 1,246,599 km (0.086 R)
• M4: 1,821,055 km (0.077 R)
• M5: 2,304,106 km (0.059 R)
• M6: 3,041,624 km (0.106 R)
• M7: 3,894,631 km (0.11 R)
• M8: 4,479,559 km (0.052 R)
• M9: 5,167,858 km (0.099 R)
• M10: 5,657,043 km (0.112 R)
• M11: 6,621,800 km (0.101 R)
• M12: 7,200,445 km (0.102 R)
• M13: 7,842,668 km (0.106 R)
• M14: 8,682,960 km (0.113 R)
• M15: 9,966,360 km (0.062 R)
• M16: 10,469,757 km (0.04 R)
• M17: 11,606,252 km (0.113 R)
• M18: 12,656,129 km (0.12 R)
• M19: 15,653,921 km (0.082 R)
• M20: 16,236,904 km (0.118 R)
• M21: 16,733,719 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 442

Radius: 14.4

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 2.45 AU - 3.19 AU

Year: 3269 Days

Day: 12.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 43,627,270 km

• M1: 179,218 km (0.052 R)
• M2: 1,028,485 km (0.106 R)
• M3: 1,906,924 km (0.107 R)
• M4: 2,400,896 km (0.108 R)
• M5: 2,981,186 km (0.111 R)
• M6: 4,843,231 km (0.049 R)
• M7: 6,632,870 km (0.12 R)
• M8: 7,090,939 km (0.102 R)
• M9: 9,385,770 km (0.119 R)
• M10: 11,805,067 km (0.106 R)
• M11: 12,827,718 km (0.084 R)
• M12: 14,855,368 km (0.084 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 484.2

Radius: 10.4

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 3.43 AU - 3.73 AU

Year: 4676 Days

Day: 5.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 43,627,270 km

• M1: 134,040 km (0.086 R)
• M2: 505,641 km (0.058 R)
• M3: 1,353,412 km (0.071 R)
• M4: 1,816,866 km (0.095 R)
• M5: 2,192,656 km (0.115 R)
• M6: 2,588,043 km (0.114 R)
• M7: 4,070,408 km (0.094 R)
• M8: 4,696,476 km (0.11 R)
• M9: 5,332,267 km (0.077 R)
• M10: 8,832,557 km (0.113 R)
• M11: 9,523,400 km (0.099 R)
• M12: 11,408,184 km (0.113 R)
• M13: 12,747,384 km (0.104 R)
• M14: 15,846,304 km (0.101 R)
• M15: 21,864,477 km (0.092 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 175.1

Radius: 9.3

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 4.56 AU - 4.6 AU

Year: 6766 Days

Day: 11.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 43,627,270 km

• M1: 116,836 km (0.102 R)
• M2: 418,425 km (0.098 R)
• M3: 851,810 km (0.1 R)
• M4: 1,510,191 km (0.045 R)
• M5: 2,049,192 km (0.108 R)
• M6: 2,631,726 km (0.119 R)
• M7: 3,491,465 km (0.094 R)
• M8: 4,643,817 km (0.08 R)
• M9: 7,712,967 km (0.104 R)
• M10: 8,048,964 km (0.102 R)
• M11: 8,895,837 km (0.109 R)
• M12: 9,957,384 km (0.111 R)
• M13: 10,765,960 km (0.035 R)
• M14: 11,143,845 km (0.104 R)
• M15: 13,406,512 km (0.061 R)
• M16: 15,637,166 km (0.111 R)
• M17: 16,067,709 km (0.098 R)
• M18: 17,464,654 km (0.12 R)
• M19: 21,472,979 km (0.038 R)
• M20: 22,820,108 km (0.094 R)

Planet 9 - Ice Giant

Semi-Major Axis: 5.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 573.2

Radius: 4.3

Gravity: 31 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 5.46 AU - 6.02 AU

Year: 9492 Days

Day: 15.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 43,627,270 km

• M1: 55,052 km (0.096 R)
• M2: 252,820 km (0.107 R)
• M3: 633,547 km (0.076 R)
• M4: 920,775 km (0.118 R)
• M5: 1,633,609 km (0.091 R)
• M6: 2,137,754 km (0.109 R)
• M7: 2,388,330 km (0.083 R)
• M8: 2,905,490 km (0.112 R)
• M9: 3,328,104 km (0.106 R)
• M10: 4,024,183 km (0.084 R)
• M11: 4,723,403 km (0.112 R)
• M12: 5,901,786 km (0.066 R)
• M13: 6,180,337 km (0.096 R)
• M14: 7,954,268 km (0.096 R)
• M15: 13,217,570 km (0.038 R)
• M16: 15,321,814 km (0.106 R)
• M17: 20,891,043 km (0.101 R)
• M18: 23,039,269 km (0.12 R)
• M19: 25,058,541 km (0.062 R)
• M20: 27,097,560 km (0.098 R)
• M21: 28,549,557 km (0.082 R)
• M22: 40,068,593 km (0.073 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: 394 - 18,975 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit