🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.94

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 0.52 AU - 0.68 AU

Year: 168 Days

Day: 20.5 Hours

Environment

Temp: 154 °C

Axial Tilt: 22.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 52,323,461 km

• M1: 380,128 km (0.088 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.26

Radius: 0.58

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.18 AU - 1.82 AU

Year: 664 Days

Day: 44.8 Hours

Environment

Temp: -30 °C

Axial Tilt: 31.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 52,323,461 km

• M1: 13,763 km (0.105 R)
• M2: 83,027 km (0.112 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.83

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.52 AU - 1.6 AU

Year: 705 Days

Day: 29 Hours

Environment

Temp: -45 °C

Axial Tilt: 31.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.74 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 5.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 101.4

Radius: 9.4

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 5.89 AU - 5.95 AU

Year: 5209 Days

Day: 8.8 Hours

Environment

Temp: -140 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 52,323,461 km

• M1: 116,836 km (0.1 R)
• M2: 413,339 km (0.113 R)
• M3: 846,126 km (0.099 R)
• M4: 1,256,772 km (0.099 R)
• M5: 1,582,446 km (0.074 R)
• M6: 2,669,125 km (0.091 R)
• M7: 3,464,387 km (0.113 R)
• M8: 3,762,087 km (0.107 R)
• M9: 5,355,753 km (0.079 R)
• M10: 5,828,034 km (0.104 R)
• M11: 6,509,751 km (0.058 R)
• M12: 7,187,430 km (0.087 R)
• M13: 8,714,824 km (0.113 R)
• M14: 9,136,540 km (0.066 R)
• M15: 9,436,484 km (0.092 R)
• M16: 10,268,547 km (0.091 R)
• M17: 10,924,085 km (0.1 R)
• M18: 11,224,179 km (0.09 R)
• M19: 11,607,149 km (0.082 R)
• M20: 13,654,546 km (0.097 R)
• M21: 15,410,525 km (0.072 R)
• M22: 15,979,745 km (0.032 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 523.8

Radius: 11.1

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 6.57 AU - 9.33 AU

Year: 8107 Days

Day: 8.8 Hours

Environment

Temp: -163 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 52,323,461 km

• M1: 138,079 km (0.07 R)
• M2: 745,745 km (0.076 R)
• M3: 1,152,951 km (0.086 R)
• M4: 1,909,617 km (0.06 R)
• M5: 2,871,531 km (0.068 R)
• M6: 3,644,354 km (0.061 R)
• M7: 4,389,950 km (0.037 R)
• M8: 4,999,112 km (0.1 R)
• M9: 5,855,111 km (0.105 R)
• M10: 6,284,607 km (0.066 R)
• M11: 9,452,641 km (0.057 R)
• M12: 13,386,317 km (0.107 R)
• M13: 14,848,486 km (0.11 R)
• M14: 17,270,925 km (0.119 R)
• M15: 18,018,615 km (0.081 R)
• M16: 23,210,409 km (0.082 R)
• M17: 24,542,877 km (0.039 R)
• M18: 24,969,530 km (0.12 R)
• M19: 32,692,819 km (0.106 R)
• M20: 33,942,111 km (0.099 R)
• M21: 34,685,314 km (0.095 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 975.3

Radius: 10.3

Gravity: 9.19 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 8.46 AU - 8.86 AU

Year: 9217 Days

Day: 6.8 Hours

Environment

Temp: -159 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 52,323,461 km

• M1: 129,103 km (0.097 R)
• M2: 505,790 km (0.057 R)
• M3: 943,364 km (0.1 R)
• M4: 1,797,269 km (0.094 R)
• M5: 2,426,477 km (0.084 R)
• M6: 2,792,992 km (0.062 R)
• M7: 3,267,666 km (0.083 R)
• M8: 3,716,609 km (0.065 R)
• M9: 4,094,045 km (0.066 R)
• M10: 4,863,576 km (0.112 R)
• M11: 5,832,522 km (0.057 R)
• M12: 6,845,898 km (0.106 R)
• M13: 8,060,782 km (0.097 R)
• M14: 9,711,744 km (0.075 R)
• M15: 10,170,561 km (0.097 R)
• M16: 12,093,492 km (0.095 R)
• M17: 14,053,374 km (0.091 R)
• M18: 26,702,173 km (0.084 R)
• M19: 27,806,504 km (0.106 R)
• M20: 29,361,125 km (0.094 R)
• M21: 29,998,861 km (0.103 R)
• M22: 34,489,340 km (0.072 R)
• M23: 35,798,621 km (0.079 R)
• M24: 38,263,395 km (0.067 R)
• M25: 40,839,321 km (0.054 R)
• M26: 42,035,356 km (0.075 R)
• M27: 44,080,359 km (0.101 R)
• M28: 44,497,139 km (0.093 R)
• M29: 45,479,997 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 245.1

Radius: 3.4

Gravity: 21.2 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 12.95 AU - 15.17 AU

Year: 19066 Days

Day: 16.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 52,323,461 km

• M1: 42,336 km (0.091 R)
• M2: 168,148 km (0.097 R)
• M3: 312,959 km (0.12 R)
• M4: 598,990 km (0.1 R)
• M5: 1,037,461 km (0.104 R)
• M6: 1,584,840 km (0.073 R)
• M7: 2,115,314 km (0.077 R)
• M8: 3,049,104 km (0.096 R)
• M9: 3,215,606 km (0.075 R)
• M10: 8,003,336 km (0.097 R)
• M11: 9,028,381 km (0.088 R)
• M12: 11,391,579 km (0.114 R)
• M13: 14,399,992 km (0.087 R)
• M14: 17,366,966 km (0.107 R)
• M15: 21,573,210 km (0.116 R)
• M16: 22,542,454 km (0.118 R)
• M17: 24,662,107 km (0.064 R)
• M18: 24,947,988 km (0.102 R)
• M19: 28,763,183 km (0.118 R)
• M20: 32,604,856 km (0.073 R)
• M21: 35,670,415 km (0.091 R)
• M22: 36,281,224 km (0.096 R)
• M23: 39,439,833 km (0.117 R)
• M24: 43,051,724 km (0.117 R)
• M25: 44,725,425 km (0.107 R)
• M26: 47,170,004 km (0.08 R)

Kuiper Belt

Range: 30.3 - 49.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 351 - 14,998 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit