🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 571.9

Radius: 12.1

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.51 AU - 0.55 AU

Year: 266 Days

Day: 12.9 Hours

Environment

Temp: -134 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,651,892 km

• M1: 150,495 km (0.076 R)
• M2: 714,330 km (0.113 R)
• M3: 1,199,925 km (0.094 R)
• M4: 1,578,706 km (0.083 R)
• M5: 2,003,415 km (0.113 R)
• M6: 2,455,350 km (0.099 R)
• M7: 2,845,352 km (0.102 R)
• M8: 3,227,125 km (0.076 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 596.9

Radius: 14.5

Gravity: 2.84 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.62 AU - 0.9 AU

Year: 457 Days

Day: 10.3 Hours

Environment

Temp: -157 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,651,892 km

• M1: 181,163 km (0.049 R)
• M2: 788,530 km (0.035 R)
• M3: 1,276,070 km (0.12 R)
• M4: 1,760,468 km (0.092 R)
• M5: 2,307,248 km (0.1 R)
• M6: 2,801,370 km (0.108 R)
• M7: 3,739,648 km (0.031 R)
• M8: 4,303,332 km (0.078 R)
• M9: 4,789,077 km (0.1 R)
• M10: 5,570,426 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 104.2

Radius: 11.7

Gravity: 0.76 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.75 AU - 0.97 AU

Year: 551 Days

Day: 5.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 57,651,892 km

• M1: 145,559 km (0.072 R)
• M2: 645,664 km (0.108 R)
• M3: 1,259,165 km (0.105 R)
• M4: 1,926,222 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 618.6

Radius: 8.8

Gravity: 7.99 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.71 AU - 1.09 AU

Year: 589 Days

Day: 9.1 Hours

Environment

Temp: -163 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 57,651,892 km

• M1: 109,506 km (0.108 R)
• M2: 448,046 km (0.117 R)
• M3: 786,137 km (0.092 R)
• M4: 1,132,007 km (0.113 R)
• M5: 1,506,451 km (0.101 R)
• M6: 1,937,143 km (0.105 R)
• M7: 2,224,221 km (0.078 R)
• M8: 2,519,378 km (0.113 R)
• M9: 3,387,195 km (0.066 R)
• M10: 3,917,819 km (0.081 R)
• M11: 5,383,429 km (0.06 R)
• M12: 5,701,175 km (0.046 R)
• M13: 5,975,537 km (0.12 R)
• M14: 6,452,455 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 299.8

Radius: 10.3

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.02 AU - 1.7 AU

Year: 1095 Days

Day: 12.7 Hours

Environment

Temp: -191 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,651,892 km

• M1: 128,355 km (0.112 R)
• M2: 530,175 km (0.104 R)
• M3: 1,092,812 km (0.068 R)
• M4: 1,630,766 km (0.083 R)
• M5: 1,980,227 km (0.119 R)
• M6: 2,348,986 km (0.049 R)
• M7: 2,822,014 km (0.054 R)
• M8: 3,201,544 km (0.094 R)
• M9: 4,201,905 km (0.099 R)
• M10: 4,616,441 km (0.088 R)
• M11: 5,199,723 km (0.07 R)
• M12: 5,908,966 km (0.113 R)
• M13: 8,181,657 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 413.2

Radius: 8.6

Gravity: 5.59 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.81 AU - 1.91 AU

Year: 1751 Days

Day: 10.6 Hours

Environment

Temp: -196 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 57,651,892 km

• M1: 108,458 km (0.057 R)
• M2: 379,979 km (0.032 R)
• M3: 785,838 km (0.077 R)
• M4: 1,567,636 km (0.077 R)
• M5: 1,904,979 km (0.112 R)
• M6: 2,267,305 km (0.081 R)
• M7: 2,959,794 km (0.1 R)
• M8: 3,401,856 km (0.06 R)
• M9: 4,164,506 km (0.063 R)
• M10: 4,455,174 km (0.042 R)
• M11: 4,956,327 km (0.086 R)
• M12: 5,689,955 km (0.047 R)
• M13: 6,398,451 km (0.092 R)
• M14: 7,990,471 km (0.081 R)
• M15: 8,269,920 km (0.068 R)
• M16: 8,643,167 km (0.065 R)
• M17: 9,767,095 km (0.055 R)
• M18: 10,054,622 km (0.071 R)
• M19: 10,713,900 km (0.086 R)
• M20: 11,192,464 km (0.107 R)
• M21: 11,578,277 km (0.091 R)
• M22: 12,339,580 km (0.106 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 373.3

Radius: 12.9

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 4.22 AU - 5.56 AU

Year: 7464 Days

Day: 6.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 57,651,892 km

• M1: 160,519 km (0.081 R)
• M2: 581,786 km (0.078 R)
• M3: 1,693,747 km (0.077 R)
• M4: 3,023,523 km (0.078 R)
• M5: 4,024,781 km (0.029 R)
• M6: 4,772,471 km (0.107 R)
• M7: 6,159,543 km (0.118 R)
• M8: 7,472,264 km (0.104 R)
• M9: 8,252,417 km (0.096 R)
• M10: 8,802,189 km (0.071 R)
• M11: 10,284,255 km (0.104 R)
• M12: 13,097,593 km (0.04 R)
• M13: 15,905,096 km (0.103 R)
• M14: 21,635,143 km (0.115 R)
• M15: 22,080,047 km (0.048 R)
• M16: 25,861,433 km (0.088 R)
• M17: 26,785,349 km (0.096 R)
• M18: 27,992,754 km (0.082 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 70.3

Radius: 14.5

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 4.55 AU - 5.99 AU

Year: 8351 Days

Day: 14.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,651,892 km

• M1: 181,911 km (0.116 R)
• M2: 2,175,901 km (0.039 R)
• M3: 3,425,642 km (0.072 R)
• M4: 6,111,522 km (0.07 R)
• M5: 6,886,738 km (0.095 R)
• M6: 7,633,381 km (0.094 R)
• M7: 9,647,118 km (0.051 R)
• M8: 13,757,319 km (0.081 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 585.9

Radius: 5.3

Gravity: 20.86 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 6.22 AU - 8.84 AU

Year: 14263 Days

Day: 24.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 57,651,892 km

• M1: 66,272 km (0.102 R)
• M2: 315,352 km (0.078 R)
• M3: 526,585 km (0.086 R)
• M4: 739,462 km (0.1 R)
• M5: 1,149,809 km (0.092 R)
• M6: 1,559,408 km (0.088 R)
• M7: 2,349,285 km (0.057 R)
• M8: 3,534,698 km (0.067 R)
• M9: 3,863,066 km (0.062 R)
• M10: 4,034,804 km (0.12 R)
• M11: 4,517,856 km (0.051 R)
• M12: 5,383,728 km (0.047 R)
• M13: 6,554,631 km (0.066 R)
• M14: 10,233,242 km (0.076 R)
• M15: 12,135,080 km (0.11 R)
• M16: 13,923,523 km (0.076 R)
• M17: 14,328,484 km (0.068 R)
• M18: 14,602,697 km (0.108 R)
• M19: 16,174,223 km (0.1 R)
• M20: 18,983,371 km (0.066 R)
• M21: 25,544,884 km (0.103 R)
• M22: 26,049,776 km (0.116 R)
• M23: 26,458,328 km (0.051 R)
• M24: 27,710,014 km (0.111 R)
• M25: 29,549,918 km (0.117 R)
• M26: 30,106,272 km (0.112 R)
• M27: 32,637,019 km (0.067 R)
• M28: 34,075,553 km (0.087 R)
• M29: 42,608,316 km (0.107 R)
• M30: 44,761,328 km (0.066 R)
• M31: 48,509,054 km (0.091 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 416 - 19,161 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit