🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 445.8

Radius: 14.8

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.55 AU - 0.71 AU

Year: 345 Days

Day: 14.9 Hours

Environment

Temp: -144 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 59,248,889 km

• M1: 184,155 km (0.092 R)
• M2: 702,063 km (0.091 R)
• M3: 1,326,784 km (0.116 R)
• M4: 1,928,765 km (0.073 R)
• M5: 2,640,552 km (0.048 R)
• M6: 3,198,851 km (0.076 R)
• M7: 3,928,889 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 492.9

Radius: 15

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.52 AU - 0.74 AU

Year: 345 Days

Day: 13 Hours

Environment

Temp: -157 °C

Axial Tilt: 49.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 59,248,889 km

• M1: 186,848 km (0.075 R)
• M2: 814,860 km (0.103 R)
• M3: 1,402,480 km (0.109 R)
• M4: 1,885,382 km (0.084 R)
• M5: 2,515,937 km (0.054 R)
• M6: 3,072,142 km (0.064 R)
• M7: 3,553,847 km (0.109 R)
• M8: 4,271,468 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 678.7

Radius: 8.3

Gravity: 9.85 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.59 AU - 0.73 AU

Year: 370 Days

Day: 14.2 Hours

Environment

Temp: -154 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 59,248,889 km

• M1: 103,821 km (0.081 R)
• M2: 371,152 km (0.116 R)
• M3: 689,646 km (0.076 R)
• M4: 1,232,836 km (0.034 R)
• M5: 1,572,274 km (0.084 R)
• M6: 2,497,536 km (0.07 R)
• M7: 2,767,561 km (0.101 R)
• M8: 3,424,594 km (0.093 R)
• M9: 3,922,157 km (0.064 R)
• M10: 4,494,668 km (0.103 R)
• M11: 4,911,597 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 880.6

Radius: 13.8

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.66 AU - 0.78 AU

Year: 422 Days

Day: 11.6 Hours

Environment

Temp: -155 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 59,248,889 km

• M1: 171,589 km (0.098 R)
• M2: 716,574 km (0.106 R)
• M3: 1,171,501 km (0.056 R)
• M4: 1,744,461 km (0.095 R)
• M5: 2,287,651 km (0.072 R)
• M6: 3,304,916 km (0.09 R)
• M7: 4,119,776 km (0.071 R)
• M8: 4,816,004 km (0.098 R)
• M9: 6,006,504 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 821.9

Radius: 8.2

Gravity: 12.22 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.68 AU - 1.06 AU

Year: 560 Days

Day: 14.2 Hours

Environment

Temp: -170 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 59,248,889 km

• M1: 102,026 km (0.082 R)
• M2: 368,759 km (0.111 R)
• M3: 623,823 km (0.1 R)
• M4: 910,303 km (0.097 R)
• M5: 2,011,942 km (0.102 R)
• M6: 2,274,636 km (0.108 R)
• M7: 2,624,545 km (0.087 R)
• M8: 3,046,112 km (0.089 R)
• M9: 4,246,635 km (0.049 R)
• M10: 4,634,542 km (0.088 R)
• M11: 5,012,127 km (0.118 R)
• M12: 5,286,639 km (0.111 R)
• M13: 6,249,601 km (0.048 R)
• M14: 6,897,659 km (0.082 R)
• M15: 7,412,425 km (0.076 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 730.9

Radius: 7.5

Gravity: 12.99 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 6.27 AU - 8.21 AU

Year: 13447 Days

Day: 16.7 Hours

Environment

Temp: -235 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 59,248,889 km

• M1: 93,349 km (0.051 R)
• M2: 396,434 km (0.078 R)
• M3: 1,359,545 km (0.061 R)
• M4: 1,654,104 km (0.058 R)
• M5: 2,138,502 km (0.05 R)
• M6: 3,210,071 km (0.064 R)
• M7: 4,863,277 km (0.091 R)
• M8: 7,540,630 km (0.05 R)
• M9: 8,567,470 km (0.083 R)
• M10: 9,897,844 km (0.114 R)
• M11: 11,068,746 km (0.105 R)
• M12: 11,899,015 km (0.085 R)
• M13: 12,329,408 km (0.08 R)
• M14: 14,778,923 km (0.066 R)
• M15: 15,061,813 km (0.081 R)
• M16: 15,420,399 km (0.053 R)
• M17: 17,144,066 km (0.086 R)
• M18: 25,227,886 km (0.12 R)
• M19: 25,836,001 km (0.117 R)
• M20: 26,246,797 km (0.095 R)
• M21: 28,149,383 km (0.061 R)
• M22: 29,134,335 km (0.069 R)
• M23: 30,255,571 km (0.096 R)
• M24: 32,108,789 km (0.077 R)
• M25: 33,063,224 km (0.102 R)
• M26: 37,988,434 km (0.092 R)
• M27: 46,789,576 km (0.094 R)
• M28: 47,246,897 km (0.113 R)
• M29: 52,311,832 km (0.102 R)
• M30: 54,974,974 km (0.094 R)
• M31: 58,959,662 km (0.056 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 513.9

Radius: 6.5

Gravity: 12.16 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 6.09 AU - 9.35 AU

Year: 14806 Days

Day: 19.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 59,248,889 km

• M1: 137,331 km (0.115 R)
• M2: 343,926 km (0.109 R)
• M3: 1,763,908 km (0.081 R)
• M4: 2,421,092 km (0.108 R)
• M5: 3,084,110 km (0.094 R)
• M6: 5,298,158 km (0.071 R)
• M7: 11,566,758 km (0.047 R)
• M8: 12,654,185 km (0.103 R)
• M9: 16,250,069 km (0.106 R)
• M10: 16,846,067 km (0.073 R)
• M11: 17,149,601 km (0.08 R)
• M12: 19,459,691 km (0.093 R)
• M13: 19,962,190 km (0.101 R)
• M14: 21,344,774 km (0.088 R)
• M15: 25,078,437 km (0.065 R)
• M16: 26,583,990 km (0.044 R)
• M17: 28,899,466 km (0.115 R)
• M18: 38,451,589 km (0.118 R)
• M19: 43,078,652 km (0.118 R)
• M20: 46,114,292 km (0.102 R)
• M21: 50,536,704 km (0.115 R)
• M22: 55,400,729 km (0.05 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 520.5

Radius: 7.4

Gravity: 9.51 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 6.94 AU - 9.16 AU

Year: 15765 Days

Day: 23.8 Hours

Environment

Temp: -233 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 59,248,889 km

• M1: 92,302 km (0.114 R)
• M2: 329,863 km (0.066 R)
• M3: 632,051 km (0.055 R)
• M4: 879,486 km (0.103 R)
• M5: 1,168,210 km (0.081 R)
• M6: 1,837,361 km (0.072 R)
• M7: 2,085,544 km (0.105 R)
• M8: 3,064,213 km (0.08 R)
• M9: 3,363,708 km (0.111 R)
• M10: 3,849,752 km (0.047 R)
• M11: 5,411,105 km (0.083 R)
• M12: 8,031,910 km (0.108 R)
• M13: 10,932,612 km (0.077 R)
• M14: 11,694,066 km (0.066 R)
• M15: 13,387,813 km (0.047 R)
• M16: 13,919,633 km (0.111 R)
• M17: 14,743,618 km (0.077 R)
• M18: 18,366,579 km (0.07 R)
• M19: 23,966,776 km (0.099 R)
• M20: 25,248,979 km (0.099 R)
• M21: 28,165,090 km (0.09 R)
• M22: 32,709,275 km (0.111 R)
• M23: 40,131,574 km (0.092 R)
• M24: 40,819,425 km (0.06 R)
• M25: 45,113,332 km (0.096 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 263 - 11,032 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit