🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

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: 4.78

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.41 AU - 0.63 AU

Year: 246 Days

Day: 47.6 Hours

Environment

Temp: -109 °C

Axial Tilt: 20.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 738.4

Radius: 13.8

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.89 AU - 0.97 AU

Year: 588 Days

Day: 5.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 26,181,190 km

• M1: 171,589 km (0.056 R)
• M2: 632,949 km (0.115 R)
• M3: 1,079,498 km (0.108 R)
• M4: 1,603,390 km (0.081 R)
• M5: 2,435,304 km (0.102 R)
• M6: 3,055,537 km (0.071 R)
• M7: 3,487,426 km (0.118 R)
• M8: 5,957,286 km (0.054 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 250.7

Radius: 12.8

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.99 AU - 1.13 AU

Year: 716 Days

Day: 6.9 Hours

Environment

Temp: -159 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 26,181,190 km

• M1: 159,322 km (0.067 R)
• M2: 582,385 km (0.105 R)
• M3: 1,050,027 km (0.112 R)
• M4: 1,625,082 km (0.071 R)
• M5: 2,166,327 km (0.101 R)
• M6: 2,576,225 km (0.079 R)
• M7: 3,126,595 km (0.082 R)
• M8: 3,741,892 km (0.092 R)
• M9: 4,214,471 km (0.036 R)
• M10: 4,952,288 km (0.073 R)
• M11: 5,706,860 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 531.7

Radius: 9.4

Gravity: 6.02 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 1.35 AU - 1.41 AU

Year: 1063 Days

Day: 10.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 26,181,190 km

• M1: 117,135 km (0.09 R)
• M2: 761,154 km (0.114 R)
• M3: 1,681,330 km (0.082 R)
• M4: 2,144,186 km (0.066 R)
• M5: 2,468,215 km (0.108 R)
• M6: 2,837,572 km (0.103 R)
• M7: 3,748,773 km (0.048 R)
• M8: 4,825,579 km (0.106 R)
• M9: 5,214,084 km (0.081 R)
• M10: 5,805,445 km (0.046 R)
• M11: 8,952,236 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11.6

Radius: 11.5

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.21 AU - 1.69 AU

Year: 1145 Days

Day: 5.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 26,181,190 km

• M1: 143,464 km (0.118 R)
• M2: 565,630 km (0.106 R)
• M3: 932,892 km (0.073 R)
• M4: 1,814,173 km (0.095 R)
• M5: 2,878,413 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 308.8

Radius: 11.5

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 1.41 AU - 1.61 AU

Year: 1217 Days

Day: 8.2 Hours

Environment

Temp: -171 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 26,181,190 km

• M1: 143,016 km (0.068 R)
• M2: 615,296 km (0.114 R)
• M3: 1,207,554 km (0.063 R)
• M4: 1,581,100 km (0.082 R)
• M5: 2,033,334 km (0.106 R)
• M6: 2,605,397 km (0.05 R)
• M7: 3,431,476 km (0.04 R)
• M8: 4,042,882 km (0.118 R)
• M9: 4,424,207 km (0.077 R)
• M10: 4,952,288 km (0.119 R)
• M11: 6,074,272 km (0.074 R)
• M12: 6,859,810 km (0.103 R)
• M13: 7,312,045 km (0.115 R)
• M14: 8,027,571 km (0.04 R)
• M15: 8,789,324 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 316.4

Radius: 14.9

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.89 AU - 2.83 AU

Year: 2378 Days

Day: 7.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 26,181,190 km

• M1: 188,643 km (0.074 R)
• M2: 1,005,298 km (0.115 R)
• M3: 1,718,431 km (0.096 R)
• M4: 2,585,201 km (0.078 R)
• M5: 3,187,332 km (0.085 R)
• M6: 4,202,803 km (0.112 R)
• M7: 4,776,959 km (0.09 R)
• M8: 5,403,176 km (0.038 R)
• M9: 6,470,108 km (0.071 R)
• M10: 6,950,018 km (0.088 R)
• M11: 8,328,712 km (0.117 R)
• M12: 9,176,633 km (0.11 R)
• M13: 10,590,482 km (0.066 R)
• M14: 12,450,582 km (0.052 R)
• M15: 13,641,979 km (0.071 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 472.6

Radius: 13.4

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 2.14 AU - 3.08 AU

Year: 2766 Days

Day: 14.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 26,181,190 km

• M1: 166,652 km (0.034 R)
• M2: 707,748 km (0.103 R)
• M3: 1,439,880 km (0.117 R)
• M4: 4,111,548 km (0.079 R)
• M5: 4,557,798 km (0.102 R)
• M6: 5,743,361 km (0.093 R)
• M7: 7,039,926 km (0.037 R)
• M8: 8,236,260 km (0.06 R)
• M9: 9,633,953 km (0.107 R)
• M10: 10,060,906 km (0.083 R)
• M11: 14,449,658 km (0.115 R)

Planet 9 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 940.2

Radius: 11.2

Gravity: 7.5 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 2.29 AU - 3.25 AU

Year: 3024 Days

Day: 14.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 26,181,190 km

• M1: 139,724 km (0.112 R)
• M2: 490,232 km (0.09 R)
• M3: 885,171 km (0.075 R)
• M4: 1,459,028 km (0.099 R)
• M5: 1,971,102 km (0.101 R)
• M6: 2,386,984 km (0.111 R)
• M7: 3,068,701 km (0.076 R)
• M8: 4,002,042 km (0.039 R)
• M9: 5,397,192 km (0.062 R)
• M10: 5,826,239 km (0.108 R)
• M11: 6,692,261 km (0.027 R)
• M12: 7,576,235 km (0.118 R)
• M13: 7,944,096 km (0.111 R)
• M14: 9,120,085 km (0.102 R)
• M15: 10,738,584 km (0.073 R)
• M16: 11,506,470 km (0.099 R)
• M17: 11,859,371 km (0.103 R)
• M18: 13,832,418 km (0.099 R)
• M19: 14,332,822 km (0.116 R)
• M20: 15,744,129 km (0.114 R)
• M21: 16,124,706 km (0.115 R)
• M22: 16,623,166 km (0.106 R)
• M23: 17,188,945 km (0.053 R)
• M24: 19,958,450 km (0.112 R)

Planet 10 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 806.6

Radius: 13.6

Gravity: 4.36 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 2.72 AU - 3.64 AU

Year: 3720 Days

Day: 10.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 26,181,190 km

• M1: 169,195 km (0.089 R)
• M2: 746,344 km (0.102 R)
• M3: 1,182,571 km (0.073 R)
• M4: 1,724,115 km (0.12 R)
• M5: 2,166,028 km (0.094 R)
• M6: 3,401,108 km (0.05 R)
• M7: 3,847,807 km (0.107 R)
• M8: 4,935,832 km (0.077 R)
• M9: 6,550,292 km (0.114 R)
• M10: 7,312,643 km (0.053 R)
• M11: 9,400,730 km (0.088 R)
• M12: 11,587,851 km (0.055 R)
• M13: 12,752,171 km (0.028 R)
• M14: 14,616,610 km (0.094 R)
• M15: 15,422,044 km (0.038 R)
• M16: 16,656,676 km (0.095 R)
• M17: 18,138,443 km (0.061 R)
• M18: 22,541,706 km (0.093 R)
• M19: 22,967,911 km (0.116 R)
• M20: 23,836,326 km (0.072 R)
• M21: 24,952,476 km (0.1 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: 544 - 17,977 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit