🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 669

Radius: 12.4

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.5 AU - 0.62 AU

Year: 279 Days

Day: 13.1 Hours

Environment

Temp: -145 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 50,846,525 km

• M1: 154,235 km (0.119 R)
• M2: 587,321 km (0.111 R)
• M3: 982,858 km (0.105 R)
• M4: 1,622,239 km (0.099 R)
• M5: 2,090,630 km (0.065 R)
• M6: 2,703,533 km (0.112 R)
• M7: 3,607,852 km (0.097 R)
• M8: 4,058,441 km (0.06 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 517.8

Radius: 11.9

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.65 AU - 0.91 AU

Year: 459 Days

Day: 10.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 50,846,525 km

• M1: 148,251 km (0.095 R)
• M2: 590,612 km (0.05 R)
• M3: 1,021,005 km (0.09 R)
• M4: 1,479,224 km (0.105 R)
• M5: 2,295,430 km (0.085 R)
• M6: 3,333,789 km (0.062 R)
• M7: 3,788,267 km (0.075 R)
• M8: 5,217,375 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 337.5

Radius: 12.1

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.76 AU - 1.12 AU

Year: 608 Days

Day: 10.4 Hours

Environment

Temp: -177 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 50,846,525 km

• M1: 151,842 km (0.114 R)
• M2: 600,635 km (0.038 R)
• M3: 1,073,514 km (0.102 R)
• M4: 1,716,336 km (0.096 R)
• M5: 2,341,207 km (0.091 R)
• M6: 2,825,006 km (0.117 R)
• M7: 3,317,183 km (0.039 R)
• M8: 3,827,910 km (0.104 R)
• M9: 4,238,108 km (0.06 R)
• M10: 4,855,947 km (0.112 R)
• M11: 5,483,959 km (0.025 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 594.6

Radius: 13.6

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.53 AU - 1.73 AU

Year: 1388 Days

Day: 8.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 50,846,525 km

• M1: 169,195 km (0.098 R)
• M2: 603,478 km (0.114 R)
• M3: 1,032,973 km (0.092 R)
• M4: 1,472,641 km (0.083 R)
• M5: 2,169,169 km (0.105 R)
• M6: 2,613,924 km (0.109 R)
• M7: 3,503,881 km (0.101 R)
• M8: 3,986,484 km (0.108 R)
• M9: 4,605,819 km (0.029 R)
• M10: 6,640,350 km (0.111 R)
• M11: 8,575,698 km (0.082 R)
• M12: 9,009,981 km (0.09 R)
• M13: 9,519,810 km (0.118 R)
• M14: 10,017,373 km (0.109 R)
• M15: 11,441,096 km (0.037 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 266.7

Radius: 10.8

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 2.17 AU - 2.47 AU

Year: 2356 Days

Day: 7.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 50,846,525 km

• M1: 134,339 km (0.092 R)
• M2: 470,186 km (0.097 R)
• M3: 1,679,984 km (0.088 R)
• M4: 2,204,325 km (0.099 R)
• M5: 2,621,254 km (0.079 R)
• M6: 3,003,925 km (0.117 R)
• M7: 4,707,396 km (0.043 R)
• M8: 5,733,338 km (0.098 R)
• M9: 6,075,618 km (0.094 R)
• M10: 7,030,053 km (0.061 R)
• M11: 8,660,071 km (0.072 R)
• M12: 9,516,220 km (0.076 R)
• M13: 9,964,864 km (0.101 R)
• M14: 10,801,415 km (0.078 R)
• M15: 12,999,457 km (0.043 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 379.8

Radius: 14.6

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 2.39 AU - 3.65 AU

Year: 3500 Days

Day: 10.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 50,846,525 km

• M1: 195,674 km (0.115 R)
• M2: 679,025 km (0.098 R)
• M3: 1,170,903 km (0.118 R)
• M4: 1,743,563 km (0.106 R)
• M5: 2,258,030 km (0.069 R)
• M6: 3,082,315 km (0.113 R)
• M7: 3,694,619 km (0.071 R)
• M8: 4,408,500 km (0.059 R)
• M9: 5,236,673 km (0.048 R)
• M10: 6,087,287 km (0.101 R)
• M11: 9,482,261 km (0.111 R)
• M12: 12,037,991 km (0.1 R)
• M13: 12,591,054 km (0.095 R)
• M14: 13,384,821 km (0.108 R)
• M15: 13,840,047 km (0.092 R)
• M16: 14,829,787 km (0.057 R)
• M17: 16,376,629 km (0.097 R)
• M18: 17,003,444 km (0.076 R)
• M19: 18,305,244 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 369.4

Radius: 9.3

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 4.46 AU - 4.68 AU

Year: 6515 Days

Day: 8.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 50,846,525 km

• M1: 115,639 km (0.038 R)
• M2: 555,756 km (0.054 R)
• M3: 1,253,481 km (0.076 R)
• M4: 1,692,999 km (0.077 R)
• M5: 1,984,715 km (0.077 R)
• M6: 2,776,985 km (0.119 R)
• M7: 3,488,922 km (0.09 R)
• M8: 6,615,068 km (0.09 R)
• M9: 10,219,031 km (0.089 R)
• M10: 13,139,331 km (0.109 R)
• M11: 14,734,642 km (0.113 R)
• M12: 17,736,473 km (0.094 R)
• M13: 19,083,153 km (0.109 R)
• M14: 20,704,196 km (0.094 R)
• M15: 22,268,989 km (0.094 R)
• M16: 22,635,355 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 189.5

Radius: 3

Gravity: 21.06 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 8.36 AU - 11.44 AU

Year: 20772 Days

Day: 22.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 50,846,525 km

• M1: 37,998 km (0.102 R)
• M2: 185,950 km (0.089 R)
• M3: 282,590 km (0.061 R)
• M4: 972,237 km (0.039 R)
• M5: 1,315,414 km (0.049 R)
• M6: 1,610,271 km (0.11 R)
• M7: 1,930,411 km (0.113 R)
• M8: 2,349,135 km (0.035 R)
• M9: 3,074,535 km (0.09 R)
• M10: 3,437,609 km (0.036 R)
• M11: 3,855,736 km (0.063 R)
• M12: 4,306,624 km (0.098 R)
• M13: 6,125,434 km (0.073 R)
• M14: 7,601,666 km (0.1 R)
• M15: 7,949,332 km (0.108 R)
• M16: 11,456,953 km (0.104 R)
• M17: 12,146,599 km (0.11 R)
• M18: 16,947,195 km (0.059 R)
• M19: 17,916,888 km (0.099 R)
• M20: 22,341,395 km (0.119 R)
• M21: 22,963,273 km (0.119 R)
• M22: 23,233,447 km (0.067 R)
• M23: 25,566,874 km (0.082 R)
• M24: 26,839,952 km (0.09 R)
• M25: 36,219,739 km (0.07 R)
• M26: 41,037,987 km (0.073 R)
• M27: 41,170,232 km (0.094 R)
• M28: 44,569,993 km (0.077 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 155 - 12,048 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit