🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.8

Radius: 1.51

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.49 AU - 0.55 AU

Year: 246 Days

Day: 33.2 Hours

Environment

Temp: -122 °C

Axial Tilt: 23.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.38

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.45 AU - 0.61 AU

Year: 253 Days

Day: 42.3 Hours

Environment

Temp: -114 °C

Axial Tilt: 21.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,485,502 km

• M1: 388,805 km (0.113 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.38

Radius: 1.41

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.43 AU - 0.71 AU

Year: 282 Days

Day: 27.7 Hours

Environment

Temp: -130 °C

Axial Tilt: 13.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,485,502 km

• M1: 493,374 km (0.075 R)

Planet 4 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.69

Radius: 1.23

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.51 AU - 0.77 AU

Year: 336 Days

Day: 33.2 Hours

Environment

Temp: -122 °C

Axial Tilt: 23.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 620.1

Radius: 12.2

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 0.63 AU - 0.83 AU

Year: 409 Days

Day: 6.5 Hours

Environment

Temp: -147 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 51,485,502 km

• M1: 151,842 km (0.03 R)
• M2: 617,241 km (0.115 R)
• M3: 1,169,556 km (0.105 R)
• M4: 1,754,783 km (0.081 R)
• M5: 2,234,543 km (0.095 R)
• M6: 2,634,269 km (0.064 R)
• M7: 3,416,666 km (0.109 R)
• M8: 3,875,482 km (0.094 R)
• M9: 4,444,403 km (0.074 R)
• M10: 4,992,979 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 809

Radius: 12.6

Gravity: 5.1 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.66 AU - 0.82 AU

Year: 418 Days

Day: 9.6 Hours

Environment

Temp: -141 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 51,485,502 km

• M1: 156,629 km (0.081 R)
• M2: 560,244 km (0.068 R)
• M3: 1,321,996 km (0.071 R)
• M4: 1,743,713 km (0.057 R)
• M5: 2,283,312 km (0.077 R)
• M6: 3,420,855 km (0.032 R)
• M7: 3,883,561 km (0.114 R)
• M8: 5,139,285 km (0.106 R)
• M9: 5,596,456 km (0.099 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 953

Radius: 5.9

Gravity: 27.38 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 5.94 AU - 8.44 AU

Year: 12647 Days

Day: 19.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 51,485,502 km

• M1: 73,303 km (0.088 R)
• M2: 288,574 km (0.066 R)
• M3: 529,726 km (0.102 R)
• M4: 843,882 km (0.095 R)
• M5: 1,613,712 km (0.059 R)
• M6: 3,063,166 km (0.091 R)
• M7: 3,396,021 km (0.11 R)
• M8: 4,073,849 km (0.082 R)
• M9: 5,218,423 km (0.063 R)
• M10: 6,000,221 km (0.118 R)
• M11: 6,814,781 km (0.101 R)
• M12: 7,116,520 km (0.035 R)
• M13: 8,267,826 km (0.067 R)
• M14: 8,811,763 km (0.118 R)
• M15: 9,274,170 km (0.097 R)
• M16: 12,780,894 km (0.086 R)
• M17: 13,107,765 km (0.103 R)
• M18: 14,683,929 km (0.053 R)
• M19: 16,536,100 km (0.042 R)
• M20: 17,239,210 km (0.071 R)
• M21: 17,638,487 km (0.112 R)
• M22: 19,988,819 km (0.081 R)
• M23: 20,696,865 km (0.118 R)
• M24: 23,696,752 km (0.104 R)
• M25: 29,281,988 km (0.085 R)
• M26: 31,718,040 km (0.094 R)
• M27: 38,325,030 km (0.092 R)
• M28: 39,279,015 km (0.06 R)
• M29: 41,804,527 km (0.092 R)
• M30: 43,842,199 km (0.088 R)
• M31: 49,064,661 km (0.115 R)
• M32: 62,392,784 km (0.069 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 148.2

Radius: 7.9

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 10.25 AU - 11.75 AU

Year: 23933 Days

Day: 23 Hours

Environment

Temp: -224 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 51,485,502 km

• M1: 98,286 km (0.056 R)
• M2: 445,203 km (0.06 R)
• M3: 1,001,408 km (0.071 R)
• M4: 1,458,130 km (0.101 R)
• M5: 2,082,552 km (0.104 R)
• M6: 3,169,979 km (0.11 R)
• M7: 3,744,584 km (0.096 R)
• M8: 4,906,960 km (0.096 R)
• M9: 7,323,713 km (0.096 R)
• M10: 8,371,048 km (0.1 R)
• M11: 10,545,154 km (0.096 R)
• M12: 12,644,012 km (0.114 R)
• M13: 13,008,732 km (0.107 R)
• M14: 17,799,753 km (0.073 R)
• M15: 18,181,228 km (0.061 R)
• M16: 20,669,339 km (0.113 R)
• M17: 22,301,751 km (0.073 R)
• M18: 26,309,927 km (0.03 R)
• M19: 31,991,804 km (0.066 R)
• M20: 33,588,013 km (0.103 R)
• M21: 39,982,574 km (0.115 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 381 - 11,533 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit