🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.4

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.47 AU - 0.55 AU

Year: 235 Days

Day: 31.7 Hours

Environment

Temp: -110 °C

Axial Tilt: 34 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865.7

Radius: 10.8

Gravity: 7.42 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.03 AU - 1.37 AU

Year: 849 Days

Day: 11.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 51,573,816 km

• M1: 134,488 km (0.111 R)
• M2: 498,909 km (0.099 R)
• M3: 1,022,202 km (0.044 R)
• M4: 1,413,550 km (0.1 R)
• M5: 1,896,452 km (0.101 R)
• M6: 2,487,663 km (0.067 R)
• M7: 2,871,232 km (0.088 R)
• M8: 3,406,493 km (0.107 R)
• M9: 3,866,207 km (0.093 R)
• M10: 9,174,389 km (0.098 R)
• M11: 9,686,612 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 70.4

Radius: 12

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.99 AU - 1.53 AU

Year: 913 Days

Day: 14.2 Hours

Environment

Temp: -179 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 51,573,816 km

• M1: 149,299 km (0.081 R)
• M2: 686,654 km (0.071 R)
• M3: 1,260,960 km (0.12 R)
• M4: 1,799,812 km (0.1 R)
• M5: 2,472,404 km (0.118 R)
• M6: 2,960,093 km (0.105 R)
• M7: 3,996,956 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 143.1

Radius: 13.1

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.38 AU - 1.42 AU

Year: 1070 Days

Day: 7.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 51,573,816 km

• M1: 164,408 km (0.111 R)
• M2: 811,419 km (0.077 R)
• M3: 1,622,838 km (0.074 R)
• M4: 2,351,379 km (0.11 R)
• M5: 3,195,710 km (0.095 R)
• M6: 3,759,993 km (0.072 R)
• M7: 4,640,526 km (0.085 R)
• M8: 5,235,327 km (0.074 R)
• M9: 6,077,264 km (0.056 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 346.3

Radius: 14.4

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.73 AU - 1.81 AU

Year: 1520 Days

Day: 11.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 51,573,816 km

• M1: 180,864 km (0.114 R)
• M2: 686,654 km (0.068 R)
• M3: 1,153,998 km (0.069 R)
• M4: 1,910,963 km (0.056 R)
• M5: 2,643,544 km (0.093 R)
• M6: 3,144,398 km (0.09 R)
• M7: 3,617,875 km (0.113 R)
• M8: 4,479,409 km (0.119 R)
• M9: 5,197,778 km (0.097 R)
• M10: 5,718,678 km (0.053 R)
• M11: 7,031,549 km (0.107 R)
• M12: 7,695,913 km (0.099 R)
• M13: 8,980,360 km (0.117 R)
• M14: 9,585,484 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.7

Radius: 13.9

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 2.42 AU - 3.04 AU

Year: 2912 Days

Day: 5.6 Hours

Environment

Temp: -196 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 51,573,816 km

• M1: 173,234 km (0.098 R)
• M2: 736,919 km (0.093 R)
• M3: 1,577,510 km (0.119 R)
• M4: 2,019,870 km (0.088 R)
• M5: 2,533,290 km (0.092 R)
• M6: 3,118,517 km (0.084 R)
• M7: 3,620,268 km (0.085 R)
• M8: 4,175,875 km (0.117 R)
• M9: 5,302,945 km (0.103 R)
• M10: 5,902,234 km (0.096 R)
• M11: 6,598,014 km (0.103 R)
• M12: 7,772,657 km (0.095 R)
• M13: 8,923,064 km (0.087 R)
• M14: 9,639,189 km (0.056 R)
• M15: 10,080,204 km (0.108 R)
• M16: 12,332,998 km (0.119 R)
• M17: 12,894,289 km (0.098 R)
• M18: 14,067,735 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 956.5

Radius: 13.8

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 3.85 AU - 4.07 AU

Year: 5088 Days

Day: 5.4 Hours

Environment

Temp: -216 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 51,573,816 km

• M1: 171,589 km (0.038 R)
• M2: 715,377 km (0.092 R)
• M3: 1,381,536 km (0.105 R)
• M4: 1,992,045 km (0.112 R)
• M5: 3,206,032 km (0.08 R)
• M6: 4,267,279 km (0.118 R)
• M7: 5,948,311 km (0.117 R)
• M8: 7,883,060 km (0.114 R)
• M9: 8,426,399 km (0.079 R)
• M10: 8,870,555 km (0.068 R)
• M11: 9,330,569 km (0.098 R)
• M12: 10,117,753 km (0.096 R)
• M13: 14,792,985 km (0.109 R)
• M14: 15,561,470 km (0.118 R)
• M15: 17,566,380 km (0.104 R)
• M16: 20,308,210 km (0.081 R)
• M17: 22,084,086 km (0.045 R)
• M18: 23,324,103 km (0.086 R)
• M19: 26,540,757 km (0.074 R)
• M20: 29,762,496 km (0.119 R)
• M21: 30,418,034 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 645.2

Radius: 6.4

Gravity: 15.75 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 5.52 AU - 8.12 AU

Year: 11500 Days

Day: 24.3 Hours

Environment

Temp: -219 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 51,573,816 km

• M1: 79,586 km (0.026 R)
• M2: 984,653 km (0.048 R)
• M3: 1,526,347 km (0.101 R)
• M4: 2,860,760 km (0.052 R)
• M5: 3,759,993 km (0.095 R)
• M6: 4,376,935 km (0.116 R)
• M7: 5,563,545 km (0.074 R)
• M8: 6,212,351 km (0.112 R)
• M9: 8,740,704 km (0.071 R)
• M10: 11,257,988 km (0.041 R)
• M11: 12,711,929 km (0.119 R)
• M12: 13,264,544 km (0.114 R)
• M13: 13,769,287 km (0.08 R)
• M14: 14,749,752 km (0.105 R)
• M15: 17,069,566 km (0.072 R)
• M16: 19,621,855 km (0.096 R)
• M17: 25,084,571 km (0.093 R)
• M18: 26,247,395 km (0.085 R)
• M19: 28,161,350 km (0.076 R)
• M20: 34,576,705 km (0.098 R)
• M21: 35,531,589 km (0.051 R)
• M22: 36,626,645 km (0.111 R)
• M23: 39,527,348 km (0.115 R)
• M24: 42,171,041 km (0.116 R)
• M25: 47,660,834 km (0.112 R)
• M26: 48,694,107 km (0.106 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 500 - 10,892 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit