🌌 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: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.65

Radius: 1.22

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.44 AU - 0.66 AU

Year: 263 Days

Day: 42.2 Hours

Environment

Temp: -112 °C

Axial Tilt: 4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 55.1

Radius: 14.1

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.87 AU - 1.17 AU

Year: 665 Days

Day: 14.8 Hours

Environment

Temp: -165 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 50,839,989 km

• M1: 176,077 km (0.115 R)
• M2: 649,554 km (0.11 R)
• M3: 1,491,341 km (0.091 R)
• M4: 2,057,569 km (0.107 R)
• M5: 3,282,177 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 680.8

Radius: 8.7

Gravity: 8.99 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 1.35 AU - 2.07 AU

Year: 1444 Days

Day: 8.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 50,839,989 km

• M1: 108,309 km (0.075 R)
• M2: 394,789 km (0.083 R)
• M3: 835,953 km (0.064 R)
• M4: 1,472,492 km (0.081 R)
• M5: 1,769,892 km (0.094 R)
• M6: 2,708,769 km (0.075 R)
• M7: 3,071,843 km (0.085 R)
• M8: 3,677,415 km (0.098 R)
• M9: 3,982,595 km (0.118 R)
• M10: 4,434,829 km (0.07 R)
• M11: 4,722,356 km (0.107 R)
• M12: 5,063,290 km (0.087 R)
• M13: 5,885,180 km (0.048 R)
• M14: 6,970,214 km (0.105 R)
• M15: 7,519,986 km (0.118 R)
• M16: 7,846,857 km (0.111 R)
• M17: 8,183,303 km (0.038 R)
• M18: 8,529,323 km (0.025 R)
• M19: 9,594,759 km (0.068 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 525.9

Radius: 12.3

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.89 AU - 2.11 AU

Year: 1826 Days

Day: 8.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 50,839,989 km

• M1: 157,377 km (0.053 R)
• M2: 581,487 km (0.08 R)
• M3: 975,528 km (0.056 R)
• M4: 1,417,889 km (0.106 R)
• M5: 1,878,949 km (0.068 R)
• M6: 2,305,004 km (0.097 R)
• M7: 3,581,223 km (0.074 R)
• M8: 4,062,181 km (0.039 R)
• M9: 4,644,715 km (0.082 R)
• M10: 5,500,564 km (0.07 R)
• M11: 6,048,691 km (0.087 R)
• M12: 8,614,743 km (0.052 R)
• M13: 9,260,707 km (0.102 R)
• M14: 10,788,550 km (0.072 R)
• M15: 11,871,788 km (0.097 R)
• M16: 13,589,919 km (0.097 R)
• M17: 14,002,510 km (0.07 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298.7

Radius: 14.7

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 2.45 AU - 2.65 AU

Year: 2629 Days

Day: 11.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 50,839,989 km

• M1: 183,407 km (0.042 R)
• M2: 643,420 km (0.108 R)
• M3: 1,125,874 km (0.093 R)
• M4: 1,812,378 km (0.04 R)
• M5: 2,701,738 km (0.111 R)
• M6: 4,155,081 km (0.112 R)
• M7: 8,366,710 km (0.031 R)
• M8: 9,328,026 km (0.096 R)
• M9: 14,610,326 km (0.048 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 564.3

Radius: 3.7

Gravity: 41.22 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 6.97 AU - 7.09 AU

Year: 12035 Days

Day: 24.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 50,839,989 km

• M1: 46,076 km (0.102 R)
• M2: 214,075 km (0.098 R)
• M3: 530,025 km (0.1 R)
• M4: 1,376,749 km (0.067 R)
• M5: 1,805,796 km (0.099 R)
• M6: 2,205,222 km (0.049 R)
• M7: 2,475,546 km (0.093 R)
• M8: 3,035,939 km (0.072 R)
• M9: 3,272,453 km (0.106 R)
• M10: 3,624,158 km (0.115 R)
• M11: 3,945,195 km (0.072 R)
• M12: 4,169,592 km (0.103 R)
• M13: 5,663,476 km (0.094 R)
• M14: 6,433,456 km (0.06 R)
• M15: 6,665,632 km (0.113 R)
• M16: 7,354,082 km (0.065 R)
• M17: 7,824,118 km (0.086 R)
• M18: 7,955,764 km (0.119 R)
• M19: 8,729,485 km (0.034 R)
• M20: 9,502,307 km (0.096 R)
• M21: 9,803,597 km (0.098 R)
• M22: 10,908,228 km (0.11 R)
• M23: 11,294,041 km (0.072 R)
• M24: 11,861,166 km (0.106 R)
• M25: 12,746,935 km (0.115 R)
• M26: 13,236,868 km (0.118 R)
• M27: 16,950,935 km (0.105 R)
• M28: 17,920,179 km (0.1 R)
• M29: 18,847,237 km (0.108 R)
• M30: 21,389,055 km (0.05 R)
• M31: 25,761,053 km (0.1 R)
• M32: 27,039,965 km (0.077 R)
• M33: 29,299,790 km (0.063 R)
• M34: 33,149,243 km (0.078 R)
• M35: 35,134,855 km (0.088 R)
• M36: 35,854,122 km (0.114 R)
• M37: 38,449,196 km (0.116 R)
• M38: 40,116,763 km (0.114 R)
• M39: 45,407,890 km (0.11 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 248 - 15,179 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit