🌌 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: 282

Radius: 10.5

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.41 AU - 0.65 AU

Year: 257 Days

Day: 6.8 Hours

Environment

Temp: -137 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 43,442,188 km

• M1: 133,591 km (0.087 R)
• M2: 530,175 km (0.05 R)
• M3: 911,051 km (0.088 R)
• M4: 1,303,147 km (0.076 R)
• M5: 2,180,239 km (0.1 R)
• M6: 2,839,368 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 830.7

Radius: 11.3

Gravity: 6.51 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.55 AU - 0.63 AU

Year: 302 Days

Day: 5.6 Hours

Environment

Temp: -150 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 43,442,188 km

• M1: 140,472 km (0.041 R)
• M2: 606,470 km (0.07 R)
• M3: 968,796 km (0.039 R)
• M4: 1,976,936 km (0.096 R)
• M5: 2,409,723 km (0.112 R)
• M6: 2,797,480 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 254

Radius: 8.1

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.64 AU - 0.7 AU

Year: 366 Days

Day: 10.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 43,442,188 km

• M1: 100,829 km (0.094 R)
• M2: 355,295 km (0.104 R)
• M3: 934,987 km (0.109 R)
• M4: 1,262,008 km (0.105 R)
• M5: 1,567,187 km (0.078 R)
• M6: 1,853,368 km (0.088 R)
• M7: 2,197,294 km (0.073 R)
• M8: 2,600,609 km (0.098 R)
• M9: 3,014,397 km (0.116 R)
• M10: 3,450,774 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 67.5

Radius: 11.6

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.54 AU - 0.88 AU

Year: 399 Days

Day: 12 Hours

Environment

Temp: -163 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 43,442,188 km

• M1: 144,512 km (0.088 R)
• M2: 513,869 km (0.083 R)
• M3: 1,232,686 km (0.111 R)
• M4: 1,818,811 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 269.3

Radius: 14

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 1.94 AU - 2.38 AU

Year: 2117 Days

Day: 6.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 43,442,188 km

• M1: 174,132 km (0.111 R)
• M2: 692,489 km (0.097 R)
• M3: 1,151,904 km (0.12 R)
• M4: 1,984,416 km (0.111 R)
• M5: 2,487,813 km (0.095 R)
• M6: 3,234,605 km (0.075 R)
• M7: 4,669,548 km (0.106 R)
• M8: 7,437,408 km (0.096 R)
• M9: 9,411,352 km (0.104 R)
• M10: 9,970,997 km (0.113 R)
• M11: 12,325,518 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 141.7

Radius: 11

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.75 AU - 2.75 AU

Year: 2251 Days

Day: 6.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 43,442,188 km

• M1: 136,882 km (0.055 R)
• M2: 789,428 km (0.07 R)
• M3: 1,652,009 km (0.093 R)
• M4: 2,474,947 km (0.117 R)
• M5: 2,888,884 km (0.102 R)
• M6: 5,720,174 km (0.113 R)
• M7: 6,338,462 km (0.039 R)
• M8: 6,883,447 km (0.093 R)
• M9: 8,041,185 km (0.094 R)
• M10: 9,353,008 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 401.2

Radius: 10.3

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 2.3 AU - 3.6 AU

Year: 3379 Days

Day: 8.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 43,442,188 km

• M1: 128,205 km (0.069 R)
• M2: 471,682 km (0.08 R)
• M3: 861,235 km (0.098 R)
• M4: 1,292,226 km (0.08 R)
• M5: 1,632,711 km (0.095 R)
• M6: 2,173,358 km (0.057 R)
• M7: 2,500,678 km (0.037 R)
• M8: 3,291,303 km (0.09 R)
• M9: 3,860,074 km (0.11 R)
• M10: 4,756,614 km (0.098 R)
• M11: 5,460,322 km (0.107 R)
• M12: 7,192,516 km (0.045 R)
• M13: 7,864,958 km (0.094 R)
• M14: 9,441,570 km (0.074 R)
• M15: 12,464,046 km (0.036 R)
• M16: 12,898,927 km (0.075 R)
• M17: 13,524,695 km (0.107 R)
• M18: 14,358,852 km (0.075 R)
• M19: 14,933,757 km (0.109 R)
• M20: 15,424,438 km (0.118 R)
• M21: 15,774,347 km (0.085 R)
• M22: 16,180,805 km (0.103 R)
• M23: 18,096,555 km (0.115 R)
• M24: 18,767,651 km (0.09 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 509.2

Radius: 8.9

Gravity: 6.43 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 3.61 AU - 4.35 AU

Year: 5295 Days

Day: 7.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 113.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 43,442,188 km

• M1: 110,852 km (0.108 R)
• M2: 649,554 km (0.108 R)
• M3: 1,603,540 km (0.119 R)
• M4: 2,019,122 km (0.06 R)
• M5: 4,445,450 km (0.107 R)
• M6: 5,055,361 km (0.062 R)
• M7: 5,924,524 km (0.084 R)
• M8: 8,397,976 km (0.052 R)
• M9: 8,933,237 km (0.074 R)
• M10: 13,961,820 km (0.073 R)
• M11: 16,238,400 km (0.094 R)
• M12: 17,679,925 km (0.055 R)
• M13: 20,201,696 km (0.113 R)
• M14: 21,023,438 km (0.054 R)
• M15: 21,796,260 km (0.062 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 204.7

Radius: 9.8

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 4.31 AU - 4.67 AU

Year: 6345 Days

Day: 10 Hours

Environment

Temp: -223 °C

Axial Tilt: 45.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 43,442,188 km

• M1: 121,922 km (0.088 R)
• M2: 1,030,879 km (0.12 R)
• M3: 1,628,373 km (0.096 R)
• M4: 2,660,598 km (0.116 R)
• M5: 3,470,072 km (0.117 R)
• M6: 4,691,090 km (0.032 R)
• M7: 8,762,396 km (0.053 R)
• M8: 12,355,887 km (0.117 R)
• M9: 12,817,994 km (0.103 R)
• M10: 14,990,155 km (0.114 R)
• M11: 16,493,764 km (0.074 R)
• M12: 21,341,183 km (0.109 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 213.4

Radius: 6.1

Gravity: 5.74 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 7.79 AU - 8.47 AU

Year: 15458 Days

Day: 15.7 Hours

Environment

Temp: -233 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 43,442,188 km

• M1: 75,846 km (0.099 R)
• M2: 328,816 km (0.112 R)
• M3: 603,478 km (0.032 R)
• M4: 920,027 km (0.083 R)
• M5: 1,223,561 km (0.033 R)
• M6: 1,578,258 km (0.067 R)
• M7: 2,184,578 km (0.111 R)
• M8: 3,744,883 km (0.101 R)
• M9: 6,138,449 km (0.053 R)
• M10: 6,568,693 km (0.055 R)
• M11: 7,897,571 km (0.101 R)
• M12: 10,461,379 km (0.109 R)
• M13: 11,127,389 km (0.111 R)
• M14: 12,206,588 km (0.076 R)
• M15: 15,531,700 km (0.081 R)
• M16: 16,194,867 km (0.079 R)
• M17: 21,701,714 km (0.114 R)
• M18: 21,948,102 km (0.029 R)
• M19: 22,614,112 km (0.06 R)
• M20: 24,250,114 km (0.112 R)
• M21: 25,323,030 km (0.06 R)
• M22: 27,852,132 km (0.074 R)
• M23: 30,750,890 km (0.082 R)
• M24: 32,971,371 km (0.119 R)
• M25: 38,085,075 km (0.076 R)
• M26: 38,563,638 km (0.066 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 530 - 14,119 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit