🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 40.6

Radius: 9.9

Gravity: 0.41 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.74 AU - 0.84 AU

Year: 476 Days

Day: 6.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 43,693,618 km

• M1: 123,119 km (0.111 R)
• M2: 559,646 km (0.09 R)
• M3: 876,045 km (0.044 R)
• M4: 1,437,486 km (0.115 R)
• M5: 1,939,237 km (0.04 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 547.7

Radius: 11.1

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.02 AU - 1.4 AU

Year: 903 Days

Day: 13.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 43,693,618 km

• M1: 138,378 km (0.108 R)
• M2: 588,219 km (0.101 R)
• M3: 1,001,707 km (0.051 R)
• M4: 1,349,074 km (0.049 R)
• M5: 2,070,734 km (0.105 R)
• M6: 2,581,311 km (0.104 R)
• M7: 3,724,538 km (0.117 R)
• M8: 4,084,471 km (0.067 R)
• M9: 5,325,385 km (0.058 R)
• M10: 5,922,729 km (0.04 R)
• M11: 6,650,074 km (0.1 R)
• M12: 7,182,643 km (0.11 R)
• M13: 7,529,859 km (0.059 R)
• M14: 8,108,653 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 501

Radius: 12.1

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.23 AU - 1.65 AU

Year: 1172 Days

Day: 8.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 43,693,618 km

• M1: 178,470 km (0.103 R)
• M2: 565,330 km (0.107 R)
• M3: 1,855,462 km (0.054 R)
• M4: 2,532,842 km (0.085 R)
• M5: 5,688,309 km (0.105 R)
• M6: 6,610,730 km (0.069 R)
• M7: 8,269,621 km (0.098 R)
• M8: 9,139,832 km (0.109 R)
• M9: 9,655,645 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.2

Radius: 8.4

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.46 AU - 1.58 AU

Year: 1271 Days

Day: 13.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 43,693,618 km

• M1: 104,569 km (0.073 R)
• M2: 452,833 km (0.12 R)
• M3: 801,994 km (0.101 R)
• M4: 1,151,305 km (0.053 R)
• M5: 1,434,195 km (0.12 R)
• M6: 1,746,106 km (0.087 R)
• M7: 2,103,496 km (0.074 R)
• M8: 2,386,684 km (0.07 R)
• M9: 2,648,182 km (0.104 R)
• M10: 3,122,407 km (0.097 R)
• M11: 3,579,129 km (0.105 R)
• M12: 3,954,321 km (0.119 R)
• M13: 4,626,613 km (0.101 R)
• M14: 5,054,164 km (0.062 R)
• M15: 5,744,708 km (0.052 R)
• M16: 6,806,404 km (0.087 R)
• M17: 7,455,359 km (0.078 R)
• M18: 7,770,263 km (0.081 R)
• M19: 8,557,447 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798.7

Radius: 8.1

Gravity: 12.17 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.65 AU - 2.51 AU

Year: 2035 Days

Day: 10.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 43,693,618 km

• M1: 100,679 km (0.05 R)
• M2: 385,065 km (0.12 R)
• M3: 1,423,424 km (0.09 R)
• M4: 1,692,401 km (0.072 R)
• M5: 2,554,683 km (0.119 R)
• M6: 4,019,844 km (0.07 R)
• M7: 4,460,111 km (0.115 R)
• M8: 5,089,320 km (0.114 R)
• M9: 5,900,589 km (0.047 R)
• M10: 6,258,726 km (0.114 R)
• M11: 7,160,652 km (0.063 R)
• M12: 8,398,574 km (0.036 R)
• M13: 8,984,848 km (0.117 R)
• M14: 9,322,191 km (0.084 R)
• M15: 10,644,337 km (0.106 R)
• M16: 11,725,032 km (0.076 R)
• M17: 12,087,358 km (0.119 R)
• M18: 12,792,264 km (0.116 R)
• M19: 13,219,665 km (0.118 R)
• M20: 13,480,563 km (0.091 R)
• M21: 14,057,712 km (0.111 R)
• M22: 16,084,464 km (0.078 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 549.6

Radius: 14.9

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 2.02 AU - 2.5 AU

Year: 2304 Days

Day: 9.1 Hours

Environment

Temp: -213 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 43,693,618 km

• M1: 186,399 km (0.061 R)
• M2: 650,452 km (0.067 R)
• M3: 1,197,980 km (0.071 R)
• M4: 2,062,356 km (0.074 R)
• M5: 2,865,398 km (0.076 R)
• M6: 4,545,681 km (0.102 R)
• M7: 5,120,286 km (0.085 R)
• M8: 5,647,768 km (0.079 R)
• M9: 6,812,837 km (0.108 R)
• M10: 7,655,671 km (0.034 R)
• M11: 8,789,772 km (0.111 R)
• M12: 10,388,675 km (0.117 R)
• M13: 13,892,556 km (0.087 R)
• M14: 15,295,485 km (0.119 R)
• M15: 16,444,995 km (0.092 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 223.8

Radius: 14.6

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 2.33 AU - 3.35 AU

Year: 3246 Days

Day: 13.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 43,693,618 km

• M1: 213,177 km (0.082 R)
• M2: 853,755 km (0.085 R)
• M3: 1,530,536 km (0.067 R)
• M4: 2,039,468 km (0.11 R)
• M5: 2,568,147 km (0.106 R)
• M6: 3,731,569 km (0.065 R)
• M7: 4,492,574 km (0.094 R)
• M8: 5,744,259 km (0.102 R)
• M9: 6,605,644 km (0.044 R)
• M10: 8,493,868 km (0.111 R)
• M11: 9,121,730 km (0.097 R)
• M12: 9,612,860 km (0.057 R)
• M13: 12,221,548 km (0.118 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 962

Radius: 10

Gravity: 9.62 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 3.61 AU - 4.55 AU

Year: 5590 Days

Day: 8.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 43,693,618 km

• M1: 124,465 km (0.087 R)
• M2: 532,419 km (0.107 R)
• M3: 1,028,037 km (0.119 R)
• M4: 1,381,985 km (0.061 R)
• M5: 1,846,337 km (0.119 R)
• M6: 2,930,622 km (0.086 R)
• M7: 7,579,526 km (0.089 R)
• M8: 8,242,693 km (0.104 R)
• M9: 10,231,746 km (0.025 R)
• M10: 13,729,494 km (0.091 R)
• M11: 16,375,432 km (0.074 R)
• M12: 17,616,645 km (0.061 R)
• M13: 18,089,375 km (0.098 R)
• M14: 20,285,322 km (0.107 R)
• M15: 21,105,716 km (0.099 R)
• M16: 23,699,295 km (0.117 R)
• M17: 29,321,931 km (0.103 R)
• M18: 32,239,538 km (0.066 R)
• M19: 33,976,070 km (0.065 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 475.1

Radius: 10.9

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 3.6 AU - 4.88 AU

Year: 5922 Days

Day: 12.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 43,693,618 km

• M1: 146,157 km (0.074 R)
• M2: 931,696 km (0.105 R)
• M3: 1,434,644 km (0.112 R)
• M4: 2,310,838 km (0.111 R)
• M5: 3,368,046 km (0.044 R)
• M6: 4,133,090 km (0.067 R)
• M7: 5,037,110 km (0.043 R)
• M8: 5,564,742 km (0.098 R)
• M9: 6,504,815 km (0.094 R)
• M10: 6,929,373 km (0.082 R)
• M11: 7,979,999 km (0.114 R)
• M12: 8,466,940 km (0.102 R)
• M13: 9,336,403 km (0.046 R)
• M14: 9,919,984 km (0.087 R)
• M15: 10,705,822 km (0.102 R)
• M16: 11,627,195 km (0.083 R)
• M17: 14,433,502 km (0.092 R)
• M18: 15,499,686 km (0.095 R)
• M19: 16,981,752 km (0.06 R)
• M20: 18,816,869 km (0.118 R)
• M21: 20,088,600 km (0.087 R)
• M22: 20,432,676 km (0.096 R)
• M23: 23,177,198 km (0.085 R)
• M24: 24,559,333 km (0.1 R)
• M25: 25,510,925 km (0.092 R)
• M26: 29,652,542 km (0.08 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 313.8

Radius: 4.7

Gravity: 14.21 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 6.73 AU - 7.49 AU

Year: 12859 Days

Day: 21 Hours

Environment

Temp: -230 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 43,693,618 km

• M1: 58,642 km (0.067 R)
• M2: 208,689 km (0.089 R)
• M3: 372,200 km (0.115 R)
• M4: 639,381 km (0.113 R)
• M5: 898,335 km (0.032 R)
• M6: 1,201,570 km (0.047 R)
• M7: 1,655,300 km (0.061 R)
• M8: 1,994,140 km (0.086 R)
• M9: 2,957,101 km (0.089 R)
• M10: 3,291,303 km (0.117 R)
• M11: 4,087,911 km (0.098 R)
• M12: 7,397,764 km (0.059 R)
• M13: 7,928,538 km (0.084 R)
• M14: 9,625,725 km (0.093 R)
• M15: 14,083,592 km (0.111 R)
• M16: 14,643,687 km (0.066 R)
• M17: 15,348,293 km (0.092 R)
• M18: 20,527,670 km (0.058 R)
• M19: 23,162,238 km (0.116 R)
• M20: 23,593,230 km (0.072 R)
• M21: 24,117,421 km (0.043 R)
• M22: 24,649,540 km (0.12 R)
• M23: 26,761,413 km (0.107 R)
• M24: 29,090,652 km (0.117 R)
• M25: 30,819,854 km (0.033 R)
• M26: 31,551,388 km (0.061 R)
• M27: 31,762,620 km (0.1 R)
• M28: 32,940,703 km (0.076 R)
• M29: 36,301,120 km (0.113 R)
• M30: 36,999,593 km (0.089 R)
• M31: 40,006,360 km (0.062 R)
• M32: 42,013,814 km (0.062 R)
• M33: 42,397,682 km (0.095 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 187 - 19,900 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit