🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.88

Radius: 1.53

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.51 AU - 0.61 AU

Year: 271 Days

Day: 29.4 Hours

Environment

Temp: -115 °C

Axial Tilt: 10.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 70,721,573 km

• M1: 549,174 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 602.2

Radius: 14.8

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.87 AU - 1.23 AU

Year: 695 Days

Day: 10.4 Hours

Environment

Temp: -162 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,721,573 km

• M1: 184,155 km (0.069 R)
• M2: 745,297 km (0.067 R)
• M3: 1,716,336 km (0.095 R)
• M4: 2,332,530 km (0.096 R)
• M5: 4,004,885 km (0.026 R)
• M6: 4,952,438 km (0.077 R)
• M7: 5,725,260 km (0.073 R)
• M8: 6,199,336 km (0.062 R)
• M9: 6,844,701 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 318.6

Radius: 14.9

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 2.79 AU - 3.29 AU

Year: 3422 Days

Day: 6.7 Hours

Environment

Temp: -206 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,721,573 km

• M1: 185,501 km (0.105 R)
• M2: 819,946 km (0.069 R)
• M3: 1,527,394 km (0.099 R)
• M4: 2,088,536 km (0.111 R)
• M5: 2,847,745 km (0.111 R)
• M6: 3,551,304 km (0.098 R)
• M7: 7,532,552 km (0.086 R)
• M8: 13,783,200 km (0.101 R)
• M9: 17,164,710 km (0.038 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 837.3

Radius: 13.5

Gravity: 4.59 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 4.75 AU - 5.21 AU

Year: 7176 Days

Day: 6.8 Hours

Environment

Temp: -213 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 70,721,573 km

• M1: 167,998 km (0.119 R)
• M2: 652,696 km (0.111 R)
• M3: 1,483,412 km (0.061 R)
• M4: 1,936,993 km (0.059 R)
• M5: 2,466,270 km (0.083 R)
• M6: 2,987,469 km (0.034 R)
• M7: 4,497,062 km (0.106 R)
• M8: 6,467,565 km (0.101 R)
• M9: 7,904,602 km (0.069 R)
• M10: 9,499,315 km (0.115 R)
• M11: 9,965,013 km (0.077 R)
• M12: 13,031,171 km (0.108 R)
• M13: 14,933,907 km (0.079 R)
• M14: 20,185,091 km (0.075 R)
• M15: 23,139,200 km (0.06 R)
• M16: 27,014,084 km (0.092 R)
• M17: 29,990,932 km (0.118 R)
• M18: 31,609,880 km (0.113 R)
• M19: 33,930,293 km (0.092 R)
• M20: 35,242,715 km (0.074 R)
• M21: 35,799,369 km (0.087 R)
• M22: 38,436,331 km (0.116 R)
• M23: 39,622,342 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 346.6

Radius: 13.5

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 4.61 AU - 5.59 AU

Year: 7437 Days

Day: 13.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 70,721,573 km

• M1: 167,849 km (0.085 R)
• M2: 993,180 km (0.085 R)
• M3: 1,516,324 km (0.105 R)
• M4: 1,975,290 km (0.075 R)
• M5: 3,638,220 km (0.083 R)
• M6: 4,810,469 km (0.083 R)
• M7: 6,347,138 km (0.11 R)
• M8: 7,315,785 km (0.082 R)
• M9: 10,279,019 km (0.102 R)
• M10: 13,218,617 km (0.118 R)
• M11: 24,688,585 km (0.066 R)
• M12: 25,494,320 km (0.111 R)
• M13: 27,073,175 km (0.039 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 968.7

Radius: 13.9

Gravity: 5.01 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 5.54 AU - 5.6 AU

Year: 8488 Days

Day: 6.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 70,721,573 km

• M1: 172,935 km (0.114 R)
• M2: 742,454 km (0.092 R)
• M3: 1,320,949 km (0.113 R)
• M4: 2,268,951 km (0.034 R)
• M5: 2,851,784 km (0.073 R)
• M6: 3,836,138 km (0.099 R)
• M7: 7,008,511 km (0.069 R)
• M8: 10,815,178 km (0.077 R)
• M9: 13,554,614 km (0.059 R)
• M10: 14,369,773 km (0.12 R)
• M11: 14,887,531 km (0.083 R)
• M12: 16,376,030 km (0.109 R)
• M13: 20,205,287 km (0.032 R)
• M14: 22,370,716 km (0.118 R)
• M15: 22,891,616 km (0.106 R)
• M16: 25,243,145 km (0.099 R)
• M17: 26,093,459 km (0.063 R)
• M18: 26,767,996 km (0.053 R)
• M19: 27,851,384 km (0.034 R)
• M20: 30,210,841 km (0.076 R)
• M21: 32,479,044 km (0.117 R)
• M22: 34,167,106 km (0.083 R)
• M23: 37,352,045 km (0.046 R)
• M24: 40,473,106 km (0.054 R)
• M25: 45,544,025 km (0.075 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 641.5

Radius: 3.7

Gravity: 46.86 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 7.36 AU - 11.38 AU

Year: 18519 Days

Day: 15.7 Hours

Environment

Temp: -236 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 70,721,573 km

• M1: 46,076 km (0.037 R)
• M2: 174,282 km (0.116 R)
• M3: 411,993 km (0.072 R)
• M4: 963,261 km (0.117 R)
• M5: 1,734,288 km (0.083 R)
• M6: 2,405,534 km (0.073 R)
• M7: 2,727,020 km (0.104 R)
• M8: 3,102,211 km (0.064 R)
• M9: 3,568,208 km (0.078 R)
• M10: 3,713,767 km (0.104 R)
• M11: 4,535,359 km (0.119 R)
• M12: 6,107,632 km (0.074 R)
• M13: 7,060,720 km (0.113 R)
• M14: 7,477,799 km (0.069 R)
• M15: 8,209,183 km (0.076 R)
• M16: 10,868,585 km (0.107 R)
• M17: 11,613,283 km (0.116 R)
• M18: 15,235,795 km (0.108 R)
• M19: 16,566,019 km (0.115 R)
• M20: 18,227,902 km (0.077 R)
• M21: 25,448,543 km (0.069 R)
• M22: 29,387,754 km (0.035 R)
• M23: 29,862,278 km (0.083 R)
• M24: 31,316,519 km (0.082 R)
• M25: 38,729,842 km (0.05 R)
• M26: 49,702,397 km (0.12 R)
• M27: 53,657,016 km (0.081 R)
• M28: 61,410,076 km (0.102 R)
• M29: 66,973,321 km (0.073 R)
• M30: 70,721,645 km (0.095 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 258 - 12,787 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit