🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

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: 4.19

Radius: 1.77

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.49 AU - 0.63 AU

Year: 266 Days

Day: 25 Hours

Environment

Temp: -117 °C

Axial Tilt: 49.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.57

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.63 AU - 0.67 AU

Year: 333 Days

Day: 18.4 Hours

Environment

Temp: -137 °C

Axial Tilt: 31.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 760.4

Radius: 10.4

Gravity: 7.03 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.09 AU - 1.19 AU

Year: 774 Days

Day: 6.4 Hours

Environment

Temp: -164 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 30,131,850 km

• M1: 129,402 km (0.116 R)
• M2: 469,289 km (0.071 R)
• M3: 971,638 km (0.106 R)
• M4: 1,307,785 km (0.118 R)
• M5: 1,765,853 km (0.118 R)
• M6: 2,287,800 km (0.118 R)
• M7: 2,637,261 km (0.089 R)
• M8: 3,362,960 km (0.079 R)
• M9: 4,029,119 km (0.038 R)
• M10: 4,991,782 km (0.071 R)
• M11: 6,162,834 km (0.082 R)
• M12: 7,626,499 km (0.1 R)
• M13: 8,087,859 km (0.032 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 808.1

Radius: 14.4

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.12 AU - 1.34 AU

Year: 867 Days

Day: 14.1 Hours

Environment

Temp: -170 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 30,131,850 km

• M1: 181,163 km (0.103 R)
• M2: 652,995 km (0.086 R)
• M3: 1,243,308 km (0.109 R)
• M4: 1,696,589 km (0.112 R)
• M5: 2,221,528 km (0.11 R)
• M6: 2,855,225 km (0.108 R)
• M7: 4,473,724 km (0.037 R)
• M8: 4,929,100 km (0.082 R)
• M9: 5,710,899 km (0.114 R)
• M10: 6,355,815 km (0.111 R)
• M11: 7,378,317 km (0.066 R)
• M12: 8,298,942 km (0.096 R)
• M13: 9,211,190 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 781.2

Radius: 9.8

Gravity: 8.13 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.96 AU - 1.54 AU

Year: 889 Days

Day: 14.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 30,131,850 km

• M1: 122,072 km (0.1 R)
• M2: 488,886 km (0.109 R)
• M3: 795,861 km (0.114 R)
• M4: 1,224,907 km (0.057 R)
• M5: 1,681,630 km (0.055 R)
• M6: 2,270,896 km (0.114 R)
• M7: 3,178,356 km (0.117 R)
• M8: 3,722,444 km (0.092 R)
• M9: 4,411,940 km (0.096 R)
• M10: 5,473,936 km (0.1 R)
• M11: 6,365,389 km (0.043 R)
• M12: 7,792,104 km (0.098 R)
• M13: 8,225,340 km (0.101 R)
• M14: 8,836,746 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 989.1

Radius: 12.3

Gravity: 6.54 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 1.47 AU - 2.07 AU

Year: 1497 Days

Day: 13.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 30,131,850 km

• M1: 153,039 km (0.061 R)
• M2: 557,252 km (0.119 R)
• M3: 1,172,548 km (0.052 R)
• M4: 1,856,958 km (0.048 R)
• M5: 2,455,799 km (0.098 R)
• M6: 2,983,281 km (0.108 R)
• M7: 3,585,562 km (0.096 R)
• M8: 4,600,434 km (0.066 R)
• M9: 6,256,333 km (0.113 R)
• M10: 10,353,968 km (0.096 R)
• M11: 11,967,530 km (0.098 R)
• M12: 12,594,046 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 549.2

Radius: 12.3

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.79 AU - 2.67 AU

Year: 2117 Days

Day: 12.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 30,131,850 km

• M1: 167,250 km (0.117 R)
• M2: 859,739 km (0.087 R)
• M3: 1,590,076 km (0.063 R)
• M4: 2,146,729 km (0.072 R)
• M5: 4,435,427 km (0.08 R)
• M6: 4,992,380 km (0.075 R)
• M7: 5,759,967 km (0.063 R)
• M8: 6,373,318 km (0.053 R)
• M9: 8,024,430 km (0.047 R)
• M10: 8,790,670 km (0.05 R)
• M11: 9,240,660 km (0.056 R)
• M12: 9,841,894 km (0.118 R)
• M13: 10,433,404 km (0.095 R)
• M14: 11,085,651 km (0.025 R)
• M15: 12,232,767 km (0.092 R)
• M16: 14,807,496 km (0.115 R)
• M17: 15,215,749 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 56.6

Radius: 6.2

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 8.41 AU - 9.71 AU

Year: 17339 Days

Day: 23 Hours

Environment

Temp: -237 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 30,131,850 km

• M1: 77,193 km (0.071 R)
• M2: 1,206,956 km (0.12 R)
• M3: 1,819,110 km (0.079 R)
• M4: 4,450,985 km (0.091 R)
• M5: 5,187,306 km (0.101 R)
• M6: 6,002,016 km (0.119 R)
• M7: 14,615,712 km (0.027 R)
• M8: 18,599,653 km (0.107 R)
• M9: 18,928,170 km (0.036 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: 341 - 10,553 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit