🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.1

Radius: 1.04

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.93 AU - 1.15 AU

Year: 387 Days

Day: 23.4 Hours

Environment

Temp: 37 °C

Axial Tilt: 16.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.54

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.48 AU - 2.02 AU

Year: 846 Days

Day: 45.9 Hours

Environment

Temp: -52 °C

Axial Tilt: 7.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.97

Radius: 0.99

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 1.68 AU - 2.06 AU

Year: 934 Days

Day: 27.1 Hours

Environment

Temp: -56 °C

Axial Tilt: 39.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 66,892,875 km

• M1: 273,016 km (0.045 R)
• M2: 715,527 km (0.086 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.25

Radius: 1.38

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 2.09 AU - 2.73 AU

Year: 1367 Days

Day: 14.2 Hours

Environment

Temp: -78 °C

Axial Tilt: 36 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 66,892,875 km

• M1: 343,028 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 952.4

Radius: 12.7

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 5.89 AU - 7.49 AU

Year: 6320 Days

Day: 7 Hours

Environment

Temp: -149 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,892,875 km

• M1: 158,125 km (0.069 R)
• M2: 575,802 km (0.037 R)
• M3: 1,124,976 km (0.118 R)
• M4: 2,034,980 km (0.083 R)
• M5: 2,539,873 km (0.069 R)
• M6: 3,500,740 km (0.066 R)
• M7: 4,258,154 km (0.099 R)
• M8: 4,859,986 km (0.081 R)
• M9: 6,167,023 km (0.053 R)
• M10: 9,241,558 km (0.057 R)
• M11: 9,830,824 km (0.087 R)
• M12: 10,348,881 km (0.04 R)
• M13: 13,502,853 km (0.051 R)
• M14: 15,676,062 km (0.099 R)
• M15: 16,912,638 km (0.082 R)
• M16: 19,727,022 km (0.114 R)
• M17: 26,991,495 km (0.069 R)
• M18: 28,670,133 km (0.108 R)
• M19: 38,004,142 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 510.7

Radius: 14.7

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 6.44 AU - 7.54 AU

Year: 6750 Days

Day: 12 Hours

Environment

Temp: -162 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 66,892,875 km

• M1: 182,809 km (0.096 R)
• M2: 660,026 km (0.098 R)
• M3: 1,272,779 km (0.12 R)
• M4: 2,311,586 km (0.102 R)
• M5: 3,016,192 km (0.103 R)
• M6: 3,838,382 km (0.112 R)
• M7: 5,106,823 km (0.091 R)
• M8: 5,930,808 km (0.11 R)
• M9: 6,706,323 km (0.085 R)
• M10: 7,475,705 km (0.066 R)
• M11: 8,187,043 km (0.087 R)
• M12: 10,733,946 km (0.06 R)
• M13: 11,205,030 km (0.088 R)
• M14: 12,443,252 km (0.115 R)
• M15: 13,716,030 km (0.101 R)
• M16: 15,786,016 km (0.032 R)
• M17: 17,149,152 km (0.052 R)
• M18: 17,794,218 km (0.09 R)
• M19: 18,724,417 km (0.119 R)
• M20: 19,477,942 km (0.071 R)
• M21: 21,935,237 km (0.096 R)
• M22: 24,837,286 km (0.061 R)
• M23: 27,371,174 km (0.084 R)
• M24: 28,521,133 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 762.6

Radius: 13.9

Gravity: 3.95 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 10.2 AU - 12.14 AU

Year: 13635 Days

Day: 12.1 Hours

Environment

Temp: -180 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 66,892,875 km

• M1: 173,384 km (0.118 R)
• M2: 821,442 km (0.111 R)
• M3: 1,332,319 km (0.118 R)
• M4: 1,850,675 km (0.076 R)
• M5: 2,342,104 km (0.101 R)
• M6: 3,308,656 km (0.117 R)
• M7: 3,926,944 km (0.118 R)
• M8: 5,118,042 km (0.066 R)
• M9: 5,873,063 km (0.077 R)
• M10: 6,337,115 km (0.101 R)
• M11: 9,396,392 km (0.117 R)
• M12: 12,430,685 km (0.062 R)
• M13: 13,863,683 km (0.059 R)
• M14: 14,831,282 km (0.094 R)
• M15: 17,765,196 km (0.075 R)
• M16: 20,887,902 km (0.036 R)
• M17: 23,003,814 km (0.118 R)
• M18: 24,956,964 km (0.059 R)
• M19: 31,477,935 km (0.114 R)
• M20: 42,826,579 km (0.113 R)
• M21: 43,405,673 km (0.078 R)
• M22: 45,924,901 km (0.07 R)
• M23: 48,383,542 km (0.109 R)
• M24: 50,444,851 km (0.107 R)
• M25: 51,253,128 km (0.088 R)
• M26: 55,082,684 km (0.088 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 413.5

Radius: 4.9

Gravity: 17.22 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 12.15 AU - 17.85 AU

Year: 21219 Days

Day: 25 Hours

Environment

Temp: -200 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,892,875 km

• M1: 61,186 km (0.078 R)
• M2: 401,072 km (0.093 R)
• M3: 1,512,434 km (0.044 R)
• M4: 1,690,905 km (0.111 R)
• M5: 2,853,280 km (0.107 R)
• M6: 4,306,175 km (0.076 R)
• M7: 10,123,737 km (0.112 R)
• M8: 10,760,874 km (0.082 R)
• M9: 11,363,005 km (0.033 R)
• M10: 11,923,848 km (0.091 R)
• M11: 16,455,766 km (0.059 R)
• M12: 18,755,534 km (0.096 R)
• M13: 19,187,722 km (0.113 R)
• M14: 20,890,146 km (0.062 R)
• M15: 28,368,543 km (0.11 R)
• M16: 34,278,856 km (0.045 R)
• M17: 46,700,566 km (0.108 R)
• M18: 58,087,806 km (0.119 R)
• M19: 63,348,565 km (0.114 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 155 - 11,982 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit