🌌 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: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.48 AU - 0.64 AU

Year: 275 Days

Day: 40.4 Hours

Environment

Temp: -133 °C

Axial Tilt: 32.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 39,753,164 km

• M1: 46,824 km (0.072 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 517.4

Radius: 14.4

Gravity: 2.5 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.74 AU - 0.82 AU

Year: 452 Days

Day: 11.8 Hours

Environment

Temp: -149 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 39,753,164 km

• M1: 179,517 km (0.103 R)
• M2: 707,598 km (0.103 R)
• M3: 1,359,994 km (0.12 R)
• M4: 2,113,519 km (0.103 R)
• M5: 3,112,384 km (0.116 R)
• M6: 3,969,879 km (0.074 R)
• M7: 4,744,945 km (0.12 R)
• M8: 5,223,210 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 532.4

Radius: 8.4

Gravity: 7.55 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.77 AU - 1.21 AU

Year: 646 Days

Day: 9.9 Hours

Environment

Temp: -149 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 39,753,164 km

• M1: 104,419 km (0.03 R)
• M2: 597,045 km (0.036 R)
• M3: 1,151,305 km (0.108 R)
• M4: 1,584,840 km (0.115 R)
• M5: 2,274,037 km (0.057 R)
• M6: 2,846,997 km (0.112 R)
• M7: 3,113,730 km (0.118 R)
• M8: 3,684,446 km (0.093 R)
• M9: 4,088,061 km (0.077 R)
• M10: 4,788,777 km (0.093 R)
• M11: 5,067,029 km (0.072 R)
• M12: 6,625,241 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 588.2

Radius: 14.1

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 2.12 AU - 2.26 AU

Year: 2126 Days

Day: 9.8 Hours

Environment

Temp: -185 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 39,753,164 km

• M1: 175,478 km (0.096 R)
• M2: 635,342 km (0.1 R)
• M3: 1,515,127 km (0.09 R)
• M4: 2,099,008 km (0.036 R)
• M5: 2,846,249 km (0.057 R)
• M6: 3,608,450 km (0.101 R)
• M7: 4,208,637 km (0.082 R)
• M8: 5,449,102 km (0.114 R)
• M9: 6,142,489 km (0.088 R)
• M10: 7,139,409 km (0.118 R)
• M11: 7,941,104 km (0.074 R)
• M12: 9,321,593 km (0.031 R)
• M13: 10,104,139 km (0.102 R)
• M14: 11,265,468 km (0.118 R)
• M15: 12,433,229 km (0.118 R)
• M16: 13,171,793 km (0.057 R)
• M17: 15,705,233 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.4

Radius: 10

Gravity: 8.64 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 2.36 AU - 3.1 AU

Year: 2959 Days

Day: 10.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 39,753,164 km

• M1: 124,316 km (0.048 R)
• M2: 481,855 km (0.079 R)
• M3: 931,546 km (0.081 R)
• M4: 1,566,589 km (0.118 R)
• M5: 1,892,862 km (0.119 R)
• M6: 2,322,208 km (0.117 R)
• M7: 2,949,771 km (0.094 R)
• M8: 4,163,458 km (0.07 R)
• M9: 4,564,829 km (0.075 R)
• M10: 5,497,722 km (0.077 R)
• M11: 5,954,145 km (0.102 R)
• M12: 6,671,467 km (0.089 R)
• M13: 8,627,459 km (0.096 R)
• M14: 10,980,484 km (0.076 R)
• M15: 13,442,715 km (0.082 R)
• M16: 15,136,761 km (0.096 R)
• M17: 16,035,097 km (0.09 R)
• M18: 16,360,472 km (0.094 R)
• M19: 17,080,786 km (0.071 R)
• M20: 18,054,369 km (0.107 R)
• M21: 19,676,159 km (0.043 R)
• M22: 20,174,918 km (0.092 R)
• M23: 21,787,583 km (0.1 R)
• M24: 22,120,140 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 107.2

Radius: 9

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 2.83 AU - 4.31 AU

Year: 4425 Days

Day: 7.3 Hours

Environment

Temp: -210 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 39,753,164 km

• M1: 118,482 km (0.078 R)
• M2: 542,741 km (0.108 R)
• M3: 823,985 km (0.113 R)
• M4: 1,468,602 km (0.093 R)
• M5: 2,121,896 km (0.105 R)
• M6: 2,840,116 km (0.051 R)
• M7: 4,731,332 km (0.089 R)
• M8: 6,417,749 km (0.063 R)
• M9: 8,200,955 km (0.055 R)
• M10: 9,254,723 km (0.077 R)
• M11: 9,713,988 km (0.113 R)
• M12: 10,856,766 km (0.034 R)
• M13: 11,330,692 km (0.089 R)
• M14: 11,818,531 km (0.115 R)
• M15: 14,081,049 km (0.058 R)
• M16: 14,513,537 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 73.5

Radius: 6.1

Gravity: 1.98 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 10.38 AU - 11.08 AU

Year: 23057 Days

Day: 19.2 Hours

Environment

Temp: -239 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 39,753,164 km

• M1: 77,043 km (0.069 R)
• M2: 295,905 km (0.094 R)
• M3: 2,465,822 km (0.078 R)
• M4: 2,672,716 km (0.111 R)
• M5: 2,870,933 km (0.073 R)
• M6: 3,252,557 km (0.096 R)
• M7: 5,687,113 km (0.106 R)
• M8: 6,569,740 km (0.05 R)
• M9: 7,156,463 km (0.109 R)
• M10: 8,060,184 km (0.074 R)
• M11: 9,305,137 km (0.073 R)
• M12: 15,133,470 km (0.118 R)
• M13: 16,681,210 km (0.087 R)
• M14: 23,258,430 km (0.057 R)
• M15: 27,765,215 km (0.09 R)
• M16: 30,771,085 km (0.071 R)
• M17: 32,404,096 km (0.086 R)
• M18: 33,241,993 km (0.111 R)
• M19: 34,201,664 km (0.109 R)
• M20: 36,064,755 km (0.096 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 471 - 13,041 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit