🌌 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: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 890.9

Radius: 13.2

Gravity: 5.11 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 0.68 AU - 0.7 AU

Year: 382 Days

Day: 9.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,344,965 km

• M1: 164,109 km (0.054 R)
• M2: 649,255 km (0.091 R)
• M3: 1,361,789 km (0.056 R)
• M4: 1,979,180 km (0.042 R)
• M5: 2,446,972 km (0.109 R)
• M6: 3,119,714 km (0.118 R)
• M7: 4,528,627 km (0.093 R)
• M8: 4,989,388 km (0.074 R)
• M9: 5,936,791 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 416.7

Radius: 12.4

Gravity: 2.71 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.58 AU - 0.88 AU

Year: 416 Days

Day: 10.9 Hours

Environment

Temp: -154 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 54,344,965 km

• M1: 155,582 km (0.068 R)
• M2: 733,778 km (0.089 R)
• M3: 1,257,819 km (0.065 R)
• M4: 2,251,448 km (0.077 R)
• M5: 2,814,983 km (0.113 R)
• M6: 4,735,221 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 463.9

Radius: 13.6

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.48 AU - 1.62 AU

Year: 1287 Days

Day: 14.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 42.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 54,344,965 km

• M1: 173,085 km (0.099 R)
• M2: 606,470 km (0.105 R)
• M3: 2,360,056 km (0.094 R)
• M4: 3,150,232 km (0.063 R)
• M5: 3,623,111 km (0.091 R)
• M6: 5,455,086 km (0.089 R)
• M7: 6,472,801 km (0.106 R)
• M8: 7,488,869 km (0.115 R)
• M9: 8,153,084 km (0.049 R)
• M10: 8,663,063 km (0.091 R)
• M11: 9,658,637 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 505.1

Radius: 14.9

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.77 AU - 2.91 AU

Year: 2387 Days

Day: 8.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 54,344,965 km

• M1: 185,352 km (0.118 R)
• M2: 1,125,724 km (0.05 R)
• M3: 2,838,171 km (0.116 R)
• M4: 3,301,625 km (0.084 R)
• M5: 5,031,126 km (0.101 R)
• M6: 6,058,115 km (0.074 R)
• M7: 6,674,907 km (0.112 R)
• M8: 7,825,913 km (0.111 R)
• M9: 8,622,073 km (0.091 R)
• M10: 11,529,957 km (0.072 R)
• M11: 15,458,247 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.5

Radius: 8.2

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 3.07 AU - 3.39 AU

Year: 3871 Days

Day: 8 Hours

Environment

Temp: -221 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 54,344,965 km

• M1: 102,026 km (0.088 R)
• M2: 396,434 km (0.099 R)
• M3: 759,209 km (0.094 R)
• M4: 1,073,514 km (0.102 R)
• M5: 1,330,673 km (0.116 R)
• M6: 1,721,722 km (0.118 R)
• M7: 2,102,748 km (0.069 R)
• M8: 2,539,424 km (0.109 R)
• M9: 2,838,320 km (0.108 R)
• M10: 3,144,996 km (0.082 R)
• M11: 4,916,235 km (0.088 R)
• M12: 5,734,685 km (0.102 R)
• M13: 6,614,619 km (0.05 R)
• M14: 7,438,006 km (0.106 R)
• M15: 7,756,500 km (0.105 R)
• M16: 8,863,075 km (0.1 R)
• M17: 9,589,224 km (0.076 R)
• M18: 10,354,267 km (0.101 R)
• M19: 11,084,604 km (0.029 R)
• M20: 14,043,500 km (0.07 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 97.6

Radius: 9.2

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 4.89 AU - 5.55 AU

Year: 7953 Days

Day: 14.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 54,344,965 km

• M1: 114,442 km (0.111 R)
• M2: 1,038,808 km (0.091 R)
• M3: 3,000,335 km (0.089 R)
• M4: 4,328,465 km (0.117 R)
• M5: 6,400,694 km (0.049 R)
• M6: 9,759,615 km (0.09 R)
• M7: 11,390,531 km (0.114 R)
• M8: 13,568,976 km (0.06 R)
• M9: 14,142,085 km (0.072 R)
• M10: 16,651,290 km (0.114 R)
• M11: 19,865,999 km (0.08 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 588

Radius: 6.3

Gravity: 14.81 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 9.47 AU - 10.33 AU

Year: 20772 Days

Day: 23.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 54,344,965 km

• M1: 78,838 km (0.083 R)
• M2: 944,860 km (0.103 R)
• M3: 1,585,737 km (0.06 R)
• M4: 2,038,869 km (0.08 R)
• M5: 2,621,553 km (0.057 R)
• M6: 3,563,720 km (0.081 R)
• M7: 3,830,902 km (0.115 R)
• M8: 4,047,969 km (0.114 R)
• M9: 4,306,025 km (0.042 R)
• M10: 7,868,549 km (0.095 R)
• M11: 8,322,728 km (0.097 R)
• M12: 9,506,496 km (0.089 R)
• M13: 12,005,080 km (0.059 R)
• M14: 13,228,641 km (0.107 R)
• M15: 15,448,972 km (0.087 R)
• M16: 17,820,248 km (0.08 R)
• M17: 19,499,035 km (0.079 R)
• M18: 27,961,188 km (0.053 R)
• M19: 29,374,739 km (0.065 R)
• M20: 30,465,606 km (0.112 R)
• M21: 30,835,113 km (0.112 R)
• M22: 31,961,884 km (0.117 R)
• M23: 32,343,359 km (0.052 R)
• M24: 32,599,470 km (0.111 R)
• M25: 33,375,883 km (0.068 R)
• M26: 36,190,118 km (0.041 R)
• M27: 37,584,221 km (0.111 R)
• M28: 45,575,291 km (0.079 R)
• M29: 48,193,104 km (0.116 R)
• M30: 50,564,529 km (0.088 R)
• M31: 50,909,651 km (0.08 R)
• M32: 53,547,361 km (0.092 R)
• M33: 58,522,537 km (0.056 R)
• M34: 62,996,411 km (0.102 R)
• M35: 65,214,349 km (0.112 R)
• M36: 65,828,299 km (0.077 R)
• M37: 70,019,433 km (0.044 R)
• M38: 71,310,612 km (0.102 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 195.6

Radius: 4.3

Gravity: 10.58 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 8.29 AU - 12.65 AU

Year: 22592 Days

Day: 23.2 Hours

Environment

Temp: -246 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 54,344,965 km

• M1: 53,556 km (0.09 R)
• M2: 310,864 km (0.039 R)
• M3: 570,716 km (0.097 R)
• M4: 803,939 km (0.117 R)
• M5: 1,086,829 km (0.077 R)
• M6: 1,232,537 km (0.035 R)
• M7: 1,490,294 km (0.033 R)
• M8: 3,686,840 km (0.111 R)
• M9: 4,018,648 km (0.092 R)
• M10: 4,837,696 km (0.053 R)
• M11: 6,133,064 km (0.103 R)
• M12: 6,558,819 km (0.082 R)
• M13: 7,255,347 km (0.049 R)
• M14: 7,909,688 km (0.092 R)
• M15: 8,090,552 km (0.1 R)
• M16: 8,228,032 km (0.093 R)
• M17: 8,507,781 km (0.047 R)
• M18: 8,650,048 km (0.066 R)
• M19: 9,185,160 km (0.104 R)
• M20: 9,435,586 km (0.113 R)
• M21: 10,374,762 km (0.058 R)
• M22: 13,758,666 km (0.061 R)
• M23: 15,380,007 km (0.087 R)
• M24: 15,733,058 km (0.057 R)
• M25: 15,947,582 km (0.11 R)
• M26: 18,200,675 km (0.042 R)
• M27: 19,077,319 km (0.115 R)
• M28: 36,549,303 km (0.092 R)
• M29: 36,925,691 km (0.103 R)
• M30: 40,162,092 km (0.11 R)
• M31: 44,573,882 km (0.1 R)
• M32: 45,870,597 km (0.093 R)
• M33: 51,622,934 km (0.112 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: 296 - 11,323 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit