🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.96

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.78 AU - 0.8 AU

Year: 254 Days

Day: 23.8 Hours

Environment

Temp: 181 °C

Axial Tilt: 34.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.15

Radius: 1.06

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 2.63 AU - 3.29 AU

Year: 1842 Days

Day: 35.2 Hours

Environment

Temp: -90 °C

Axial Tilt: 35.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.14

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 3.42 AU - 3.6 AU

Year: 2378 Days

Day: 23.7 Hours

Environment

Temp: -119 °C

Axial Tilt: 90.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 5.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 838.4

Radius: 13.7

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 4.5 AU - 7.34 AU

Year: 5209 Days

Day: 9.4 Hours

Environment

Temp: -140 °C

Axial Tilt: 47.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 77,375,253 km

• M1: 170,392 km (0.072 R)
• M2: 1,242,410 km (0.11 R)
• M3: 1,884,185 km (0.065 R)
• M4: 2,599,712 km (0.11 R)
• M5: 3,080,519 km (0.116 R)
• M6: 3,914,677 km (0.1 R)
• M7: 5,031,425 km (0.034 R)
• M8: 5,457,630 km (0.091 R)
• M9: 6,680,742 km (0.076 R)
• M10: 8,908,852 km (0.047 R)
• M11: 10,600,206 km (0.07 R)
• M12: 14,553,180 km (0.054 R)
• M13: 18,047,936 km (0.074 R)
• M14: 20,523,182 km (0.119 R)
• M15: 22,446,113 km (0.091 R)
• M16: 27,077,963 km (0.092 R)
• M17: 27,512,395 km (0.086 R)
• M18: 28,934,023 km (0.111 R)
• M19: 32,408,434 km (0.045 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 354.9

Radius: 10.1

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 5.27 AU - 7.57 AU

Year: 5883 Days

Day: 7.5 Hours

Environment

Temp: -153 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 77,375,253 km

• M1: 125,662 km (0.036 R)
• M2: 576,999 km (0.078 R)
• M3: 1,733,839 km (0.113 R)
• M4: 2,205,521 km (0.088 R)
• M5: 2,761,427 km (0.103 R)
• M6: 3,119,564 km (0.073 R)
• M7: 3,468,427 km (0.101 R)
• M8: 3,952,226 km (0.107 R)
• M9: 5,267,042 km (0.056 R)
• M10: 5,878,897 km (0.113 R)
• M11: 6,693,906 km (0.11 R)
• M12: 7,211,365 km (0.046 R)
• M13: 8,217,261 km (0.109 R)
• M14: 8,584,973 km (0.087 R)
• M15: 11,071,888 km (0.059 R)
• M16: 11,982,341 km (0.087 R)
• M17: 12,503,988 km (0.097 R)
• M18: 13,592,612 km (0.082 R)
• M19: 15,177,602 km (0.1 R)
• M20: 17,719,868 km (0.097 R)
• M21: 19,027,952 km (0.074 R)
• M22: 20,332,595 km (0.051 R)
• M23: 21,487,640 km (0.081 R)
• M24: 21,835,604 km (0.087 R)
• M25: 26,388,765 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 885.6

Radius: 8.1

Gravity: 13.5 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 8.22 AU - 10.5 AU

Year: 10356 Days

Day: 8.2 Hours

Environment

Temp: -169 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 77,375,253 km

• M1: 101,278 km (0.097 R)
• M2: 372,200 km (0.117 R)
• M3: 1,186,162 km (0.068 R)
• M4: 1,865,336 km (0.098 R)
• M5: 3,363,708 km (0.113 R)
• M6: 5,361,588 km (0.084 R)
• M7: 6,149,520 km (0.096 R)
• M8: 7,303,218 km (0.051 R)
• M9: 7,645,498 km (0.108 R)
• M10: 7,998,400 km (0.084 R)
• M11: 8,880,279 km (0.088 R)
• M12: 12,210,178 km (0.075 R)
• M13: 14,550,039 km (0.063 R)
• M14: 15,931,724 km (0.093 R)
• M15: 17,550,523 km (0.08 R)
• M16: 19,275,985 km (0.115 R)
• M17: 20,599,926 km (0.077 R)
• M18: 20,854,691 km (0.12 R)
• M19: 22,071,819 km (0.039 R)
• M20: 22,788,244 km (0.106 R)
• M21: 24,934,225 km (0.043 R)
• M22: 29,194,473 km (0.084 R)
• M23: 39,252,536 km (0.084 R)
• M24: 39,775,680 km (0.096 R)
• M25: 40,039,122 km (0.094 R)
• M26: 40,702,439 km (0.089 R)
• M27: 41,643,559 km (0.086 R)
• M28: 41,915,079 km (0.035 R)
• M29: 42,736,671 km (0.118 R)
• M30: 43,708,907 km (0.074 R)
• M31: 49,244,777 km (0.087 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 866.2

Radius: 4.1

Gravity: 51.53 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 12.18 AU - 15.12 AU

Year: 18238 Days

Day: 23.2 Hours

Environment

Temp: -177 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 77,375,253 km

• M1: 51,013 km (0.089 R)
• M2: 201,957 km (0.044 R)
• M3: 344,524 km (0.113 R)
• M4: 501,901 km (0.092 R)
• M5: 678,875 km (0.116 R)
• M6: 2,076,718 km (0.112 R)
• M7: 3,719,153 km (0.09 R)
• M8: 4,128,602 km (0.103 R)
• M9: 4,361,227 km (0.095 R)
• M10: 5,380,287 km (0.108 R)
• M11: 7,144,196 km (0.098 R)
• M12: 7,382,805 km (0.073 R)
• M13: 8,285,777 km (0.084 R)
• M14: 10,009,444 km (0.057 R)
• M15: 14,598,209 km (0.095 R)
• M16: 17,089,313 km (0.089 R)
• M17: 20,511,663 km (0.029 R)
• M18: 25,013,512 km (0.092 R)
• M19: 25,785,437 km (0.109 R)
• M20: 26,121,135 km (0.046 R)
• M21: 28,552,848 km (0.056 R)
• M22: 28,792,055 km (0.109 R)
• M23: 31,767,257 km (0.099 R)
• M24: 35,766,308 km (0.045 R)
• M25: 36,323,560 km (0.039 R)
• M26: 38,319,794 km (0.114 R)
• M27: 39,641,042 km (0.036 R)
• M28: 40,689,424 km (0.105 R)
• M29: 41,756,057 km (0.076 R)
• M30: 42,373,896 km (0.105 R)
• M31: 42,685,060 km (0.104 R)
• M32: 45,717,857 km (0.074 R)
• M33: 52,925,183 km (0.106 R)
• M34: 53,648,639 km (0.053 R)
• M35: 55,300,498 km (0.091 R)
• M36: 56,420,388 km (0.111 R)
• M37: 59,675,339 km (0.063 R)
• M38: 66,766,427 km (0.105 R)
• M39: 67,187,844 km (0.083 R)
• M40: 69,537,129 km (0.101 R)

Kuiper Belt

Range: 30.3 - 60.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 447 - 10,667 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit