🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.49

Radius: 1.82

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.59 AU - 0.63 AU

Year: 313 Days

Day: 37.6 Hours

Environment

Temp: -123 °C

Axial Tilt: 43.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 123.2

Radius: 11.9

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.89 AU - 1.25 AU

Year: 726 Days

Day: 11.5 Hours

Environment

Temp: -165 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 36,712,357 km

• M1: 237,711 km (0.079 R)
• M2: 618,587 km (0.1 R)
• M3: 1,024,147 km (0.096 R)
• M4: 2,899,955 km (0.038 R)
• M5: 3,406,942 km (0.068 R)
• M6: 3,984,838 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 97.4

Radius: 8.2

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 3.21 AU - 4.25 AU

Year: 4726 Days

Day: 14.1 Hours

Environment

Temp: -207 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,712,357 km

• M1: 108,159 km (0.082 R)
• M2: 955,631 km (0.113 R)
• M3: 1,466,658 km (0.076 R)
• M4: 2,055,176 km (0.039 R)
• M5: 2,489,309 km (0.095 R)
• M6: 3,028,459 km (0.066 R)
• M7: 5,475,432 km (0.116 R)
• M8: 6,931,617 km (0.112 R)
• M9: 12,346,911 km (0.114 R)
• M10: 14,731,052 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 713.6

Radius: 14.8

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 4.13 AU - 6.09 AU

Year: 7578 Days

Day: 9.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 36,712,357 km

• M1: 184,753 km (0.091 R)
• M2: 858,542 km (0.101 R)
• M3: 1,405,023 km (0.097 R)
• M4: 2,442,784 km (0.089 R)
• M5: 2,995,697 km (0.112 R)
• M6: 3,996,058 km (0.057 R)
• M7: 5,209,447 km (0.06 R)
• M8: 6,068,438 km (0.092 R)
• M9: 6,692,111 km (0.115 R)
• M10: 7,320,422 km (0.037 R)
• M11: 8,150,541 km (0.075 R)
• M12: 9,399,533 km (0.039 R)
• M13: 10,189,111 km (0.112 R)
• M14: 11,275,940 km (0.058 R)
• M15: 12,384,460 km (0.118 R)
• M16: 13,333,957 km (0.077 R)
• M17: 15,441,492 km (0.086 R)
• M18: 17,417,830 km (0.115 R)
• M19: 19,262,820 km (0.094 R)
• M20: 25,577,795 km (0.114 R)
• M21: 26,749,595 km (0.079 R)
• M22: 29,983,752 km (0.064 R)
• M23: 30,982,467 km (0.073 R)
• M24: 33,683,157 km (0.093 R)
• M25: 35,642,590 km (0.068 R)
• M26: 36,763,378 km (0.111 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 700.9

Radius: 4.8

Gravity: 30.42 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 4.79 AU - 7.23 AU

Year: 9665 Days

Day: 22.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 36,712,357 km

• M1: 61,186 km (0.092 R)
• M2: 242,199 km (0.1 R)
• M3: 404,064 km (0.092 R)
• M4: 568,771 km (0.051 R)
• M5: 753,225 km (0.119 R)
• M6: 1,332,917 km (0.105 R)
• M7: 2,526,708 km (0.089 R)
• M8: 2,878,562 km (0.058 R)
• M9: 3,309,853 km (0.103 R)
• M10: 3,914,677 km (0.094 R)
• M11: 4,159,569 km (0.117 R)
• M12: 4,801,194 km (0.077 R)
• M13: 5,018,560 km (0.054 R)
• M14: 5,406,467 km (0.091 R)
• M15: 5,814,121 km (0.106 R)
• M16: 6,169,117 km (0.061 R)
• M17: 6,652,318 km (0.089 R)
• M18: 7,568,156 km (0.119 R)
• M19: 8,121,519 km (0.078 R)
• M20: 9,260,707 km (0.045 R)
• M21: 10,554,429 km (0.092 R)
• M22: 13,010,377 km (0.066 R)
• M23: 13,190,493 km (0.103 R)
• M24: 14,562,904 km (0.102 R)
• M25: 16,027,766 km (0.119 R)
• M26: 17,882,181 km (0.065 R)
• M27: 24,385,949 km (0.091 R)
• M28: 25,400,821 km (0.096 R)
• M29: 26,251,734 km (0.078 R)
• M30: 26,539,560 km (0.103 R)
• M31: 28,512,457 km (0.096 R)
• M32: 31,220,477 km (0.068 R)
• M33: 33,416,724 km (0.114 R)
• M34: 35,713,649 km (0.107 R)
• M35: 36,900,708 km (0.079 R)
• M36: 38,482,855 km (0.082 R)
• M37: 41,391,936 km (0.108 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 209.4

Radius: 7.1

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 6.81 AU - 7.17 AU

Year: 12123 Days

Day: 23.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 36,712,357 km

• M1: 88,412 km (0.106 R)
• M2: 372,648 km (0.084 R)
• M3: 954,135 km (0.102 R)
• M4: 1,502,561 km (0.045 R)
• M5: 1,840,054 km (0.112 R)
• M6: 2,082,103 km (0.054 R)
• M7: 2,311,287 km (0.036 R)
• M8: 2,630,978 km (0.077 R)
• M9: 3,447,932 km (0.088 R)
• M10: 3,988,578 km (0.086 R)
• M11: 4,423,459 km (0.118 R)
• M12: 5,208,250 km (0.075 R)
• M13: 5,540,806 km (0.094 R)
• M14: 5,984,364 km (0.037 R)
• M15: 6,485,666 km (0.088 R)
• M16: 7,999,148 km (0.117 R)
• M17: 11,553,294 km (0.111 R)
• M18: 12,758,305 km (0.111 R)
• M19: 14,571,132 km (0.101 R)
• M20: 15,539,030 km (0.108 R)
• M21: 19,987,622 km (0.108 R)
• M22: 22,739,176 km (0.099 R)
• M23: 28,052,742 km (0.059 R)
• M24: 29,168,593 km (0.045 R)
• M25: 35,195,592 km (0.079 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 183 - 18,084 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit