🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.35

Radius: 0.66

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.49 AU - 0.77 AU

Year: 328 Days

Day: 18.5 Hours

Environment

Temp: -140 °C

Axial Tilt: 41.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 56,893,827 km

• M1: 116,686 km (0.087 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 98.7

Radius: 8.9

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.65 AU - 0.73 AU

Year: 376 Days

Day: 6.9 Hours

Environment

Temp: -135 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 56,893,827 km

• M1: 110,702 km (0.032 R)
• M2: 439,369 km (0.036 R)
• M3: 788,231 km (0.047 R)
• M4: 1,342,940 km (0.074 R)
• M5: 1,774,680 km (0.093 R)
• M6: 2,304,256 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 457.4

Radius: 12.5

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.76 AU - 1.02 AU

Year: 551 Days

Day: 13.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 56,893,827 km

• M1: 155,432 km (0.1 R)
• M2: 571,763 km (0.104 R)
• M3: 1,000,810 km (0.11 R)
• M4: 1,425,518 km (0.06 R)
• M5: 1,989,053 km (0.066 R)
• M6: 3,215,307 km (0.106 R)
• M7: 3,608,301 km (0.092 R)
• M8: 4,033,458 km (0.07 R)
• M9: 4,862,978 km (0.071 R)
• M10: 5,548,884 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111.7

Radius: 10.8

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.77 AU - 1.13 AU

Year: 607 Days

Day: 8 Hours

Environment

Temp: -161 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 56,893,827 km

• M1: 134,339 km (0.06 R)
• M2: 720,015 km (0.074 R)
• M3: 1,145,471 km (0.117 R)
• M4: 1,516,922 km (0.093 R)
• M5: 1,899,594 km (0.084 R)
• M6: 2,436,650 km (0.112 R)
• M7: 2,818,573 km (0.075 R)
• M8: 3,260,934 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 619.1

Radius: 15

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.09 AU - 1.75 AU

Year: 1110 Days

Day: 8.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 56,893,827 km

• M1: 186,698 km (0.101 R)
• M2: 665,112 km (0.105 R)
• M3: 1,230,442 km (0.114 R)
• M4: 1,833,472 km (0.038 R)
• M5: 2,346,592 km (0.119 R)
• M6: 3,210,370 km (0.093 R)
• M7: 4,553,011 km (0.095 R)
• M8: 5,796,768 km (0.049 R)
• M9: 6,806,554 km (0.094 R)
• M10: 8,376,434 km (0.112 R)
• M11: 10,547,099 km (0.1 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 839.1

Radius: 6.6

Gravity: 19.26 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 6.45 AU - 7.19 AU

Year: 11684 Days

Day: 23.3 Hours

Environment

Temp: -219 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 56,893,827 km

• M1: 85,720 km (0.082 R)
• M2: 366,216 km (0.062 R)
• M3: 686,953 km (0.063 R)
• M4: 1,225,356 km (0.088 R)
• M5: 1,891,815 km (0.119 R)
• M6: 2,142,391 km (0.071 R)
• M7: 3,349,496 km (0.062 R)
• M8: 3,583,318 km (0.112 R)
• M9: 3,800,384 km (0.108 R)
• M10: 4,142,664 km (0.073 R)
• M11: 4,726,246 km (0.064 R)
• M12: 5,021,253 km (0.056 R)
• M13: 5,720,772 km (0.042 R)
• M14: 6,563,457 km (0.043 R)
• M15: 7,056,532 km (0.067 R)
• M16: 10,005,704 km (0.075 R)
• M17: 11,339,668 km (0.112 R)
• M18: 14,152,856 km (0.083 R)
• M19: 16,564,224 km (0.092 R)
• M20: 16,789,219 km (0.048 R)
• M21: 17,168,899 km (0.113 R)
• M22: 19,236,341 km (0.105 R)
• M23: 24,922,706 km (0.102 R)
• M24: 27,146,030 km (0.103 R)
• M25: 30,498,368 km (0.118 R)
• M26: 35,590,979 km (0.088 R)
• M27: 37,107,153 km (0.099 R)
• M28: 44,320,763 km (0.097 R)
• M29: 53,552,896 km (0.105 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 329 - 12,445 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit