🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.17

Radius: 0.49

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.5 AU - 0.8 AU

Year: 344 Days

Day: 47.6 Hours

Environment

Temp: -129 °C

Axial Tilt: 31.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 781

Radius: 14

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.6 AU - 0.78 AU

Year: 376 Days

Day: 6.3 Hours

Environment

Temp: -133 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 54,626,116 km

• M1: 174,132 km (0.099 R)
• M2: 735,872 km (0.109 R)
• M3: 1,338,751 km (0.088 R)
• M4: 1,856,510 km (0.118 R)
• M5: 2,318,917 km (0.049 R)
• M6: 3,025,617 km (0.041 R)
• M7: 3,577,932 km (0.102 R)
• M8: 4,013,412 km (0.078 R)
• M9: 4,456,371 km (0.1 R)
• M10: 5,007,490 km (0.094 R)
• M11: 5,538,861 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 830.8

Radius: 9.4

Gravity: 9.4 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 2.14 AU - 2.48 AU

Year: 2303 Days

Day: 10.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 54,626,116 km

• M1: 118,182 km (0.102 R)
• M2: 492,626 km (0.101 R)
• M3: 860,637 km (0.069 R)
• M4: 1,172,698 km (0.103 R)
• M5: 1,501,065 km (0.043 R)
• M6: 1,999,376 km (0.087 R)
• M7: 2,362,749 km (0.112 R)
• M8: 2,926,882 km (0.117 R)
• M9: 3,275,745 km (0.081 R)
• M10: 3,784,078 km (0.049 R)
• M11: 4,867,616 km (0.08 R)
• M12: 6,092,972 km (0.08 R)
• M13: 6,692,859 km (0.114 R)
• M14: 7,331,642 km (0.114 R)
• M15: 7,635,176 km (0.12 R)
• M16: 8,332,601 km (0.051 R)
• M17: 8,866,067 km (0.074 R)
• M18: 9,457,577 km (0.059 R)
• M19: 10,836,122 km (0.1 R)
• M20: 11,230,611 km (0.1 R)
• M21: 12,557,993 km (0.105 R)
• M22: 13,529,332 km (0.097 R)
• M23: 18,249,594 km (0.034 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 772.3

Radius: 8.7

Gravity: 10.2 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 3.06 AU - 4.94 AU

Year: 5248 Days

Day: 9.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 54,626,116 km

• M1: 108,758 km (0.097 R)
• M2: 382,821 km (0.063 R)
• M3: 897,138 km (0.089 R)
• M4: 1,335,311 km (0.075 R)
• M5: 1,707,360 km (0.113 R)
• M6: 2,403,739 km (0.112 R)
• M7: 3,663,652 km (0.071 R)
• M8: 4,008,176 km (0.106 R)
• M9: 4,324,276 km (0.048 R)
• M10: 7,855,534 km (0.115 R)
• M11: 8,789,025 km (0.105 R)
• M12: 10,280,216 km (0.095 R)
• M13: 11,347,746 km (0.09 R)
• M14: 11,637,966 km (0.098 R)
• M15: 13,810,726 km (0.12 R)
• M16: 19,009,850 km (0.075 R)
• M17: 20,045,666 km (0.092 R)
• M18: 21,191,436 km (0.043 R)
• M19: 22,608,128 km (0.106 R)
• M20: 23,223,274 km (0.03 R)
• M21: 24,007,616 km (0.091 R)
• M22: 24,486,628 km (0.088 R)
• M23: 25,053,604 km (0.062 R)
• M24: 25,546,380 km (0.104 R)
• M25: 26,806,891 km (0.113 R)
• M26: 31,024,654 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 481.9

Radius: 12.1

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 4.49 AU - 4.97 AU

Year: 6748 Days

Day: 5.1 Hours

Environment

Temp: -211 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 54,626,116 km

• M1: 151,393 km (0.077 R)
• M2: 552,914 km (0.091 R)
• M3: 971,638 km (0.099 R)
• M4: 1,817,614 km (0.103 R)
• M5: 2,552,140 km (0.113 R)
• M6: 3,369,991 km (0.098 R)
• M7: 3,991,570 km (0.091 R)
• M8: 4,874,796 km (0.088 R)
• M9: 5,464,661 km (0.079 R)
• M10: 7,237,844 km (0.041 R)
• M11: 8,992,926 km (0.098 R)
• M12: 10,191,355 km (0.119 R)
• M13: 13,704,661 km (0.032 R)
• M14: 16,554,949 km (0.063 R)
• M15: 19,639,807 km (0.114 R)
• M16: 20,271,409 km (0.11 R)
• M17: 21,427,801 km (0.079 R)
• M18: 23,635,117 km (0.089 R)
• M19: 24,915,825 km (0.043 R)
• M20: 25,906,312 km (0.063 R)
• M21: 30,224,903 km (0.097 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 536.7

Radius: 4.8

Gravity: 23.29 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 6.82 AU - 8.38 AU

Year: 13745 Days

Day: 15.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 54,626,116 km

• M1: 62,233 km (0.092 R)
• M2: 236,514 km (0.04 R)
• M3: 572,361 km (0.12 R)
• M4: 842,685 km (0.115 R)
• M5: 1,041,052 km (0.117 R)
• M6: 1,532,929 km (0.104 R)
• M7: 2,204,325 km (0.11 R)
• M8: 2,419,297 km (0.114 R)
• M9: 3,125,399 km (0.1 R)
• M10: 3,321,522 km (0.098 R)
• M11: 3,931,582 km (0.119 R)
• M12: 4,337,889 km (0.109 R)
• M13: 5,834,167 km (0.103 R)
• M14: 6,284,906 km (0.098 R)
• M15: 8,183,452 km (0.107 R)
• M16: 8,651,993 km (0.1 R)
• M17: 9,138,186 km (0.083 R)
• M18: 9,337,749 km (0.116 R)
• M19: 9,849,225 km (0.042 R)
• M20: 11,964,239 km (0.074 R)
• M21: 12,445,196 km (0.11 R)
• M22: 15,534,392 km (0.093 R)
• M23: 18,695,844 km (0.104 R)
• M24: 19,179,943 km (0.094 R)
• M25: 20,767,775 km (0.083 R)
• M26: 21,549,723 km (0.109 R)
• M27: 21,726,099 km (0.097 R)
• M28: 26,963,071 km (0.092 R)
• M29: 30,811,177 km (0.105 R)
• M30: 32,749,218 km (0.094 R)
• M31: 36,992,262 km (0.115 R)
• M32: 40,104,347 km (0.088 R)
• M33: 42,827,626 km (0.033 R)
• M34: 44,519,279 km (0.059 R)
• M35: 45,671,632 km (0.083 R)
• M36: 46,401,819 km (0.113 R)
• M37: 47,735,633 km (0.092 R)
• M38: 51,103,381 km (0.035 R)
• M39: 51,732,290 km (0.112 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: 260 - 16,672 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit