🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 257.9

Radius: 13.7

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.56 AU - 0.76 AU

Year: 377 Days

Day: 10.2 Hours

Environment

Temp: -147 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 32,037,051 km

• M1: 170,392 km (0.09 R)
• M2: 743,352 km (0.063 R)
• M3: 1,206,357 km (0.105 R)
• M4: 1,963,173 km (0.108 R)
• M5: 2,503,969 km (0.066 R)
• M6: 3,048,505 km (0.065 R)
• M7: 3,639,866 km (0.074 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 954.2

Radius: 11.6

Gravity: 7.09 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.71 AU - 1.13 AU

Year: 620 Days

Day: 14.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 32,037,051 km

• M1: 144,362 km (0.063 R)
• M2: 808,876 km (0.055 R)
• M3: 1,212,341 km (0.062 R)
• M4: 2,147,328 km (0.106 R)
• M5: 2,612,727 km (0.07 R)
• M6: 3,020,680 km (0.062 R)
• M7: 3,525,723 km (0.079 R)
• M8: 3,952,077 km (0.107 R)
• M9: 4,493,172 km (0.119 R)
• M10: 4,892,299 km (0.117 R)
• M11: 5,260,908 km (0.112 R)
• M12: 6,584,849 km (0.077 R)
• M13: 7,035,438 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 289.9

Radius: 9.2

Gravity: 3.43 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 1.02 AU - 1.42 AU

Year: 947 Days

Day: 11.8 Hours

Environment

Temp: -175 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 32,037,051 km

• M1: 114,442 km (0.065 R)
• M2: 416,780 km (0.086 R)
• M3: 776,563 km (0.051 R)
• M4: 1,293,274 km (0.079 R)
• M5: 1,681,181 km (0.117 R)
• M6: 3,171,475 km (0.116 R)
• M7: 3,489,221 km (0.098 R)
• M8: 5,166,811 km (0.092 R)
• M9: 6,507,807 km (0.08 R)
• M10: 7,389,985 km (0.063 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 732.8

Radius: 8.4

Gravity: 10.39 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.93 AU - 1.51 AU

Year: 947 Days

Day: 6.3 Hours

Environment

Temp: -188 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 32,037,051 km

• M1: 104,569 km (0.077 R)
• M2: 376,687 km (0.074 R)
• M3: 662,120 km (0.112 R)
• M4: 969,245 km (0.027 R)
• M5: 1,312,572 km (0.098 R)
• M6: 1,657,096 km (0.12 R)
• M7: 1,951,953 km (0.086 R)
• M8: 2,337,168 km (0.076 R)
• M9: 2,835,179 km (0.095 R)
• M10: 3,431,027 km (0.072 R)
• M11: 3,978,406 km (0.059 R)
• M12: 4,307,072 km (0.086 R)
• M13: 5,056,558 km (0.119 R)
• M14: 5,403,176 km (0.092 R)
• M15: 5,745,157 km (0.088 R)
• M16: 7,727,179 km (0.096 R)
• M17: 8,803,386 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 485.6

Radius: 9.7

Gravity: 5.16 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.51 AU - 1.59 AU

Year: 1356 Days

Day: 9 Hours

Environment

Temp: -203 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 32,037,051 km

• M1: 122,371 km (0.041 R)
• M2: 496,815 km (0.114 R)
• M3: 819,048 km (0.098 R)
• M4: 1,264,850 km (0.03 R)
• M5: 1,937,592 km (0.096 R)
• M6: 2,793,890 km (0.063 R)
• M7: 3,115,974 km (0.117 R)
• M8: 3,584,215 km (0.075 R)
• M9: 4,409,696 km (0.059 R)
• M10: 4,717,718 km (0.096 R)
• M11: 5,603,338 km (0.074 R)
• M12: 6,252,892 km (0.096 R)
• M13: 6,736,691 km (0.116 R)
• M14: 7,320,273 km (0.093 R)
• M15: 8,069,758 km (0.116 R)
• M16: 8,671,889 km (0.114 R)
• M17: 9,934,944 km (0.047 R)
• M18: 10,626,834 km (0.118 R)
• M19: 11,083,557 km (0.057 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 574.3

Radius: 10.2

Gravity: 5.52 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 3.8 AU - 4.8 AU

Year: 6268 Days

Day: 9.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 32,037,051 km

• M1: 127,906 km (0.071 R)
• M2: 445,502 km (0.071 R)
• M3: 1,400,236 km (0.101 R)
• M4: 2,174,555 km (0.049 R)
• M5: 3,253,604 km (0.118 R)
• M6: 3,773,606 km (0.114 R)
• M7: 5,119,987 km (0.071 R)
• M8: 6,363,145 km (0.047 R)
• M9: 11,054,086 km (0.111 R)
• M10: 11,879,268 km (0.111 R)
• M11: 12,954,876 km (0.084 R)
• M12: 14,318,461 km (0.112 R)
• M13: 16,758,253 km (0.086 R)
• M14: 21,617,341 km (0.079 R)
• M15: 25,804,436 km (0.103 R)
• M16: 31,163,032 km (0.056 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 816.1

Radius: 6.1

Gravity: 21.93 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 5.88 AU - 7.2 AU

Year: 11756 Days

Day: 16.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 32,037,051 km

• M1: 75,846 km (0.094 R)
• M2: 384,018 km (0.081 R)
• M3: 622,178 km (0.078 R)
• M4: 980,464 km (0.069 R)
• M5: 1,213,388 km (0.092 R)
• M6: 3,202,142 km (0.097 R)
• M7: 6,057,667 km (0.097 R)
• M8: 7,141,653 km (0.094 R)
• M9: 7,707,282 km (0.057 R)
• M10: 8,586,918 km (0.097 R)
• M11: 11,047,952 km (0.104 R)
• M12: 11,276,837 km (0.074 R)
• M13: 13,032,966 km (0.025 R)
• M14: 13,678,481 km (0.059 R)
• M15: 14,686,472 km (0.111 R)
• M16: 15,887,743 km (0.077 R)
• M17: 16,624,213 km (0.107 R)
• M18: 18,484,313 km (0.117 R)
• M19: 18,726,213 km (0.083 R)
• M20: 20,911,688 km (0.058 R)
• M21: 21,885,420 km (0.103 R)
• M22: 26,388,017 km (0.062 R)
• M23: 27,524,363 km (0.056 R)
• M24: 28,051,546 km (0.066 R)
• M25: 29,673,486 km (0.052 R)
• M26: 30,788,887 km (0.114 R)
• M27: 31,242,767 km (0.115 R)
• M28: 33,340,578 km (0.091 R)
• M29: 34,302,343 km (0.082 R)
• M30: 35,406,375 km (0.109 R)
• M31: 38,596,999 km (0.07 R)
• M32: 44,236,090 km (0.074 R)
• M33: 47,627,773 km (0.116 R)
• M34: 49,774,952 km (0.061 R)
• M35: 54,923,512 km (0.066 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 74.8

Radius: 4.7

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 7.14 AU - 9.28 AU

Year: 16536 Days

Day: 22.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 32,037,051 km

• M1: 58,493 km (0.091 R)
• M2: 1,453,194 km (0.08 R)
• M3: 3,421,154 km (0.102 R)
• M4: 5,292,324 km (0.096 R)
• M5: 9,462,664 km (0.086 R)
• M6: 10,980,185 km (0.1 R)
• M7: 14,263,110 km (0.096 R)
• M8: 25,368,059 km (0.1 R)
• M9: 31,464,920 km (0.088 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 455 - 10,760 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit