🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.86

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.48 AU - 0.6 AU

Year: 252 Days

Day: 23.9 Hours

Environment

Temp: -122 °C

Axial Tilt: 15 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 0.88 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 788.9

Radius: 11.7

Gravity: 5.76 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 1.01 AU - 1.43 AU

Year: 857 Days

Day: 13.8 Hours

Environment

Temp: -174 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 58,185,095 km

• M1: 145,559 km (0.037 R)
• M2: 904,918 km (0.087 R)
• M3: 1,355,207 km (0.088 R)
• M4: 1,798,914 km (0.077 R)
• M5: 2,775,041 km (0.09 R)
• M6: 3,170,128 km (0.117 R)
• M7: 4,485,842 km (0.049 R)
• M8: 4,852,207 km (0.077 R)
• M9: 5,410,506 km (0.12 R)
• M10: 6,178,841 km (0.117 R)
• M11: 6,813,136 km (0.106 R)
• M12: 7,275,393 km (0.097 R)
• M13: 7,709,377 km (0.063 R)
• M14: 8,843,478 km (0.068 R)
• M15: 9,649,811 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 568.8

Radius: 14.4

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 2.7 AU - 4.04 AU

Year: 3933 Days

Day: 9.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 58,185,095 km

• M1: 179,069 km (0.12 R)
• M2: 700,417 km (0.074 R)
• M3: 1,385,276 km (0.12 R)
• M4: 2,440,540 km (0.054 R)
• M5: 2,969,069 km (0.075 R)
• M6: 3,458,254 km (0.106 R)
• M7: 4,395,185 km (0.113 R)
• M8: 5,469,149 km (0.113 R)
• M9: 6,741,778 km (0.075 R)
• M10: 8,169,091 km (0.064 R)
• M11: 8,627,160 km (0.086 R)
• M12: 9,177,231 km (0.082 R)
• M13: 13,271,276 km (0.104 R)
• M14: 14,715,494 km (0.109 R)
• M15: 20,119,418 km (0.035 R)
• M16: 21,419,423 km (0.118 R)
• M17: 22,022,452 km (0.092 R)
• M18: 22,774,780 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 580.2

Radius: 11.3

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 5.7 AU - 6.1 AU

Year: 9112 Days

Day: 11.7 Hours

Environment

Temp: -210 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 58,185,095 km

• M1: 140,772 km (0.03 R)
• M2: 495,917 km (0.045 R)
• M3: 967,449 km (0.092 R)
• M4: 2,345,246 km (0.036 R)
• M5: 3,243,431 km (0.062 R)
• M6: 3,661,707 km (0.093 R)
• M7: 4,302,884 km (0.116 R)
• M8: 4,665,060 km (0.072 R)
• M9: 5,356,202 km (0.067 R)
• M10: 6,609,832 km (0.056 R)
• M11: 8,259,598 km (0.107 R)
• M12: 9,783,850 km (0.118 R)
• M13: 10,916,306 km (0.104 R)
• M14: 12,522,090 km (0.117 R)
• M15: 13,090,861 km (0.119 R)
• M16: 14,218,978 km (0.073 R)
• M17: 14,964,125 km (0.085 R)
• M18: 15,735,153 km (0.1 R)
• M19: 16,465,041 km (0.118 R)
• M20: 17,778,660 km (0.079 R)
• M21: 22,468,852 km (0.114 R)
• M22: 31,840,411 km (0.112 R)
• M23: 36,566,058 km (0.104 R)
• M24: 39,276,323 km (0.098 R)
• M25: 39,761,020 km (0.116 R)
• M26: 42,117,785 km (0.111 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 874.9

Radius: 5.3

Gravity: 31.15 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 7.27 AU - 7.29 AU

Year: 12489 Days

Day: 19.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 58,185,095 km

• M1: 67,169 km (0.117 R)
• M2: 466,297 km (0.098 R)
• M3: 780,003 km (0.031 R)
• M4: 996,023 km (0.047 R)
• M5: 1,305,241 km (0.071 R)
• M6: 1,931,159 km (0.056 R)
• M7: 2,230,953 km (0.027 R)
• M8: 2,518,480 km (0.036 R)
• M9: 3,142,453 km (0.113 R)
• M10: 3,504,031 km (0.073 R)
• M11: 4,009,073 km (0.104 R)
• M12: 5,968,506 km (0.079 R)
• M13: 7,197,453 km (0.095 R)
• M14: 7,551,701 km (0.08 R)
• M15: 9,239,912 km (0.107 R)
• M16: 9,872,412 km (0.102 R)
• M17: 14,916,254 km (0.094 R)
• M18: 15,492,056 km (0.065 R)
• M19: 17,073,605 km (0.046 R)
• M20: 17,544,539 km (0.075 R)
• M21: 19,515,341 km (0.119 R)
• M22: 20,466,036 km (0.065 R)
• M23: 22,180,278 km (0.101 R)
• M24: 22,552,926 km (0.078 R)
• M25: 28,766,324 km (0.099 R)
• M26: 34,889,215 km (0.093 R)
• M27: 37,589,906 km (0.092 R)
• M28: 41,684,848 km (0.099 R)
• M29: 49,946,540 km (0.119 R)
• M30: 56,943,532 km (0.109 R)
• M31: 59,056,452 km (0.116 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 88.8

Radius: 6.6

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 7.48 AU - 7.92 AU

Year: 13585 Days

Day: 20.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 58,185,095 km

• M1: 92,302 km (0.118 R)
• M2: 360,830 km (0.072 R)
• M3: 692,489 km (0.099 R)
• M4: 1,842,298 km (0.065 R)
• M5: 2,877,365 km (0.112 R)
• M6: 4,965,602 km (0.068 R)
• M7: 7,223,034 km (0.05 R)
• M8: 8,082,025 km (0.066 R)
• M9: 10,173,553 km (0.111 R)
• M10: 11,343,707 km (0.086 R)
• M11: 13,524,246 km (0.087 R)
• M12: 16,805,526 km (0.075 R)
• M13: 19,758,139 km (0.074 R)
• M14: 25,685,506 km (0.078 R)
• M15: 26,091,065 km (0.056 R)
• M16: 28,527,865 km (0.094 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 290.7

Radius: 4.4

Gravity: 15.02 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 8.72 AU - 11.56 AU

Year: 20530 Days

Day: 22.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 160.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 58,185,095 km

• M1: 56,698 km (0.114 R)
• M2: 388,057 km (0.092 R)
• M3: 1,428,959 km (0.046 R)
• M4: 1,608,626 km (0.117 R)
• M5: 2,812,290 km (0.113 R)
• M6: 6,013,236 km (0.08 R)
• M7: 7,856,880 km (0.103 R)
• M8: 9,259,061 km (0.079 R)
• M9: 10,763,567 km (0.104 R)
• M10: 16,464,891 km (0.077 R)
• M11: 17,226,943 km (0.086 R)
• M12: 18,171,953 km (0.061 R)
• M13: 20,423,700 km (0.03 R)
• M14: 20,948,190 km (0.077 R)
• M15: 22,668,416 km (0.1 R)
• M16: 45,172,723 km (0.113 R)
• M17: 52,292,534 km (0.101 R)
• M18: 52,618,059 km (0.117 R)
• M19: 54,265,580 km (0.077 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 354 - 13,678 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit