🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.79

Radius: 1.26

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.48 AU - 0.56 AU

Year: 246 Days

Day: 36.9 Hours

Environment

Temp: -114 °C

Axial Tilt: 37.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 43,352,362 km

• M1: 240,254 km (0.089 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.74

Radius: 1.69

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.44 AU - 0.62 AU

Year: 253 Days

Day: 14.5 Hours

Environment

Temp: -112 °C

Axial Tilt: 14 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.61

Radius: 0.82

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.51 AU - 0.59 AU

Year: 268 Days

Day: 34.4 Hours

Environment

Temp: -112 °C

Axial Tilt: 43.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 202

Radius: 14.3

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.78 AU - 0.92 AU

Year: 514 Days

Day: 7.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 43,352,362 km

• M1: 182,061 km (0.044 R)
• M2: 678,875 km (0.071 R)
• M3: 1,124,527 km (0.096 R)
• M4: 1,851,872 km (0.041 R)
• M5: 2,329,089 km (0.108 R)
• M6: 3,004,075 km (0.067 R)
• M7: 3,853,342 km (0.05 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 725.4

Radius: 15

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.51 AU - 2.41 AU

Year: 1800 Days

Day: 11.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 43,352,362 km

• M1: 186,549 km (0.112 R)
• M2: 690,843 km (0.062 R)
• M3: 1,435,840 km (0.111 R)
• M4: 2,133,415 km (0.111 R)
• M5: 2,991,808 km (0.047 R)
• M6: 3,662,455 km (0.111 R)
• M7: 4,590,859 km (0.115 R)
• M8: 5,264,199 km (0.094 R)
• M9: 5,859,150 km (0.057 R)
• M10: 6,549,993 km (0.086 R)
• M11: 8,548,322 km (0.103 R)
• M12: 9,049,774 km (0.09 R)
• M13: 9,571,122 km (0.093 R)
• M14: 11,593,536 km (0.101 R)
• M15: 12,445,795 km (0.079 R)
• M16: 13,422,819 km (0.1 R)
• M17: 14,145,526 km (0.072 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37.1

Radius: 11.5

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.71 AU - 2.35 AU

Year: 1897 Days

Day: 5.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 43,352,362 km

• M1: 144,512 km (0.118 R)
• M2: 588,518 km (0.098 R)
• M3: 1,225,506 km (0.06 R)
• M4: 2,981,336 km (0.075 R)
• M5: 4,347,613 km (0.105 R)
• M6: 5,250,137 km (0.085 R)
• M7: 5,627,573 km (0.061 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763.9

Radius: 11

Gravity: 6.31 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.72 AU - 2.7 AU

Year: 2155 Days

Day: 12.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 43,352,362 km

• M1: 136,732 km (0.05 R)
• M2: 482,004 km (0.084 R)
• M3: 1,006,195 km (0.11 R)
• M4: 2,313,531 km (0.06 R)
• M5: 2,959,943 km (0.041 R)
• M6: 3,420,555 km (0.054 R)
• M7: 3,890,741 km (0.089 R)
• M8: 4,828,720 km (0.083 R)
• M9: 5,327,779 km (0.118 R)
• M10: 6,038,069 km (0.115 R)
• M11: 7,557,535 km (0.119 R)
• M12: 8,779,899 km (0.101 R)
• M13: 9,700,225 km (0.057 R)
• M14: 10,348,881 km (0.107 R)
• M15: 10,759,228 km (0.09 R)
• M16: 11,141,750 km (0.109 R)
• M17: 12,721,354 km (0.054 R)
• M18: 13,106,120 km (0.056 R)
• M19: 15,677,857 km (0.088 R)
• M20: 17,133,893 km (0.11 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 166.5

Radius: 13

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 2.58 AU - 2.9 AU

Year: 2975 Days

Day: 12.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 43,352,362 km

• M1: 161,715 km (0.086 R)
• M2: 2,013,587 km (0.11 R)
• M3: 2,487,065 km (0.104 R)
• M4: 3,210,370 km (0.088 R)
• M5: 3,646,747 km (0.102 R)
• M6: 4,248,280 km (0.088 R)
• M7: 5,717,930 km (0.116 R)
• M8: 7,135,070 km (0.094 R)
• M9: 8,656,182 km (0.12 R)
• M10: 9,603,735 km (0.089 R)
• M11: 12,070,753 km (0.099 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 438.2

Radius: 8.8

Gravity: 5.66 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 4.84 AU - 4.98 AU

Year: 7137 Days

Day: 6.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 47.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 43,352,362 km

• M1: 109,805 km (0.042 R)
• M2: 392,694 km (0.09 R)
• M3: 970,741 km (0.107 R)
• M4: 1,269,488 km (0.097 R)
• M5: 1,643,333 km (0.116 R)
• M6: 2,293,335 km (0.074 R)
• M7: 3,588,404 km (0.117 R)
• M8: 4,368,557 km (0.111 R)
• M9: 5,976,136 km (0.104 R)
• M10: 9,347,773 km (0.103 R)
• M11: 10,492,196 km (0.112 R)
• M12: 11,050,795 km (0.068 R)
• M13: 12,176,818 km (0.11 R)
• M14: 14,314,272 km (0.104 R)
• M15: 16,195,465 km (0.07 R)
• M16: 16,565,720 km (0.062 R)
• M17: 19,804,365 km (0.109 R)
• M18: 20,299,085 km (0.082 R)
• M19: 20,657,521 km (0.114 R)
• M20: 25,294,008 km (0.106 R)
• M21: 25,709,142 km (0.067 R)
• M22: 26,638,444 km (0.119 R)
• M23: 29,928,700 km (0.057 R)
• M24: 30,862,490 km (0.073 R)
• M25: 31,146,426 km (0.049 R)
• M26: 31,623,344 km (0.105 R)
• M27: 32,494,153 km (0.104 R)

Planet 10 - Gas Giant

Semi-Major Axis: 5.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 606.7

Radius: 13.5

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 4.59 AU - 6.99 AU

Year: 9140 Days

Day: 9.4 Hours

Environment

Temp: -228 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 43,352,362 km

• M1: 168,148 km (0.076 R)
• M2: 714,180 km (0.11 R)
• M3: 1,333,815 km (0.073 R)
• M4: 1,895,405 km (0.079 R)
• M5: 3,015,444 km (0.092 R)
• M6: 4,050,811 km (0.069 R)
• M7: 4,796,108 km (0.036 R)
• M8: 5,311,024 km (0.079 R)
• M9: 6,100,900 km (0.086 R)
• M10: 7,235,750 km (0.107 R)
• M11: 8,463,649 km (0.069 R)
• M12: 8,902,420 km (0.086 R)
• M13: 9,826,037 km (0.099 R)
• M14: 10,410,217 km (0.11 R)
• M15: 12,470,778 km (0.081 R)
• M16: 15,107,440 km (0.118 R)
• M17: 18,532,483 km (0.089 R)
• M18: 19,199,690 km (0.111 R)
• M19: 19,653,420 km (0.103 R)
• M20: 21,703,061 km (0.055 R)
• M21: 23,891,378 km (0.085 R)
• M22: 26,501,861 km (0.078 R)
• M23: 28,900,214 km (0.112 R)
• M24: 29,697,272 km (0.045 R)
• M25: 32,283,220 km (0.06 R)
• M26: 32,710,472 km (0.047 R)
• M27: 34,903,577 km (0.098 R)
• M28: 38,974,883 km (0.063 R)
• M29: 43,093,761 km (0.072 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 382 - 12,341 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit