🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 611.5

Radius: 9.2

Gravity: 7.22 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.65 AU - 0.75 AU

Year: 397 Days

Day: 10.8 Hours

Environment

Temp: -167 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 62,290,952 km

• M1: 121,174 km (0.104 R)
• M2: 526,734 km (0.115 R)
• M3: 816,056 km (0.12 R)
• M4: 1,261,708 km (0.11 R)
• M5: 3,276,044 km (0.076 R)
• M6: 3,625,355 km (0.079 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 690.1

Radius: 8.6

Gravity: 9.33 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.7 AU - 0.8 AU

Year: 441 Days

Day: 6.1 Hours

Environment

Temp: -162 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 62,290,952 km

• M1: 108,758 km (0.087 R)
• M2: 440,267 km (0.062 R)
• M3: 925,113 km (0.058 R)
• M4: 1,530,386 km (0.093 R)
• M5: 1,885,382 km (0.105 R)
• M6: 2,752,750 km (0.114 R)
• M7: 3,293,696 km (0.111 R)
• M8: 3,608,600 km (0.105 R)
• M9: 4,587,120 km (0.076 R)
• M10: 4,996,419 km (0.119 R)
• M11: 5,940,831 km (0.067 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 935.2

Radius: 12

Gravity: 6.49 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 1.81 AU - 2.73 AU

Year: 2320 Days

Day: 8.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 62,290,952 km

• M1: 150,196 km (0.083 R)
• M2: 537,056 km (0.117 R)
• M3: 953,387 km (0.066 R)
• M4: 1,492,688 km (0.028 R)
• M5: 2,507,859 km (0.074 R)
• M6: 3,016,192 km (0.05 R)
• M7: 3,592,593 km (0.079 R)
• M8: 4,716,671 km (0.06 R)
• M9: 5,672,003 km (0.087 R)
• M10: 6,062,005 km (0.106 R)
• M11: 6,780,823 km (0.088 R)
• M12: 7,679,906 km (0.1 R)
• M13: 8,061,081 km (0.088 R)
• M14: 9,824,990 km (0.09 R)
• M15: 10,351,275 km (0.087 R)
• M16: 11,176,008 km (0.113 R)
• M17: 11,749,716 km (0.045 R)
• M18: 13,406,662 km (0.089 R)
• M19: 15,716,004 km (0.12 R)
• M20: 16,805,226 km (0.089 R)
• M21: 19,191,911 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 231.6

Radius: 11.8

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 2.64 AU - 3.44 AU

Year: 3595 Days

Day: 6.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 62,290,952 km

• M1: 147,055 km (0.053 R)
• M2: 822,190 km (0.102 R)
• M3: 2,139,998 km (0.1 R)
• M4: 4,534,012 km (0.117 R)
• M5: 5,293,969 km (0.091 R)
• M6: 5,813,822 km (0.079 R)
• M7: 6,792,192 km (0.078 R)
• M8: 7,610,193 km (0.041 R)
• M9: 14,405,527 km (0.1 R)
• M10: 14,907,727 km (0.074 R)
• M11: 16,141,161 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.2

Radius: 14.9

Gravity: 0.08 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 3.86 AU - 5.5 AU

Year: 6867 Days

Day: 12.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 62,290,952 km

• M1: 185,352 km (0.113 R)
• M2: 1,013,825 km (0.08 R)
• M3: 2,036,625 km (0.048 R)
• M4: 3,055,088 km (0.091 R)
• M5: 4,639,479 km (0.075 R)
• M6: 5,380,437 km (0.057 R)
• M7: 6,444,826 km (0.106 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 402.4

Radius: 5.5

Gravity: 13.3 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 7.04 AU - 7.76 AU

Year: 13653 Days

Day: 18.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 138.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 62,290,952 km

• M1: 68,366 km (0.107 R)
• M2: 538,552 km (0.115 R)
• M3: 867,368 km (0.051 R)
• M4: 1,347,877 km (0.047 R)
• M5: 1,685,070 km (0.101 R)
• M6: 1,990,549 km (0.105 R)
• M7: 2,201,931 km (0.068 R)
• M8: 3,273,650 km (0.116 R)
• M9: 3,802,628 km (0.09 R)
• M10: 4,073,849 km (0.1 R)
• M11: 4,357,786 km (0.093 R)
• M12: 5,125,672 km (0.101 R)
• M13: 7,086,002 km (0.111 R)
• M14: 8,276,951 km (0.093 R)
• M15: 10,149,916 km (0.112 R)
• M16: 10,619,205 km (0.1 R)
• M17: 10,886,087 km (0.072 R)
• M18: 12,701,308 km (0.066 R)
• M19: 14,708,911 km (0.113 R)
• M20: 16,918,921 km (0.088 R)
• M21: 19,658,806 km (0.113 R)
• M22: 20,061,224 km (0.04 R)
• M23: 21,217,616 km (0.096 R)
• M24: 22,330,474 km (0.078 R)
• M25: 33,462,052 km (0.082 R)
• M26: 43,311,426 km (0.038 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 920

Radius: 6.7

Gravity: 20.49 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 6.24 AU - 8.74 AU

Year: 13903 Days

Day: 23.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 62,290,952 km

• M1: 86,168 km (0.104 R)
• M2: 309,817 km (0.088 R)
• M3: 556,354 km (0.115 R)
• M4: 1,226,403 km (0.072 R)
• M5: 1,451,698 km (0.093 R)
• M6: 1,824,496 km (0.097 R)
• M7: 2,977,446 km (0.103 R)
• M8: 3,867,404 km (0.107 R)
• M9: 4,294,207 km (0.078 R)
• M10: 4,992,829 km (0.117 R)
• M11: 5,205,707 km (0.054 R)
• M12: 6,078,909 km (0.078 R)
• M13: 7,682,748 km (0.093 R)
• M14: 8,914,238 km (0.081 R)
• M15: 9,175,436 km (0.072 R)
• M16: 12,526,428 km (0.095 R)
• M17: 17,820,697 km (0.076 R)
• M18: 19,085,248 km (0.057 R)
• M19: 19,345,099 km (0.073 R)
• M20: 20,589,305 km (0.111 R)
• M21: 23,631,976 km (0.056 R)
• M22: 25,156,378 km (0.069 R)
• M23: 31,306,496 km (0.08 R)
• M24: 32,522,727 km (0.075 R)
• M25: 33,142,660 km (0.086 R)
• M26: 34,405,865 km (0.076 R)
• M27: 35,309,137 km (0.119 R)
• M28: 38,388,010 km (0.065 R)
• M29: 43,708,907 km (0.112 R)
• M30: 47,728,752 km (0.073 R)
• M31: 52,495,389 km (0.108 R)
• M32: 54,557,296 km (0.101 R)
• M33: 62,008,916 km (0.098 R)
• M34: 65,287,802 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 610.4

Radius: 4.6

Gravity: 28.85 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 6.3 AU - 9.94 AU

Year: 15694 Days

Day: 15.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 62,290,952 km

• M1: 57,146 km (0.112 R)
• M2: 312,061 km (0.09 R)
• M3: 484,099 km (0.084 R)
• M4: 775,515 km (0.101 R)
• M5: 3,184,041 km (0.054 R)
• M6: 4,100,178 km (0.106 R)
• M7: 4,537,453 km (0.112 R)
• M8: 4,734,174 km (0.068 R)
• M9: 5,109,515 km (0.118 R)
• M10: 7,836,385 km (0.086 R)
• M11: 10,131,516 km (0.106 R)
• M12: 12,838,639 km (0.102 R)
• M13: 17,465,551 km (0.065 R)
• M14: 19,367,688 km (0.074 R)
• M15: 22,050,128 km (0.043 R)
• M16: 24,068,801 km (0.117 R)
• M17: 32,040,573 km (0.052 R)
• M18: 37,606,062 km (0.101 R)
• M19: 42,035,506 km (0.113 R)
• M20: 49,152,774 km (0.119 R)
• M21: 51,418,284 km (0.04 R)
• M22: 55,635,448 km (0.106 R)
• M23: 57,032,094 km (0.117 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 470 - 11,593 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit