🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.22

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.51 AU - 0.75 AU

Year: 328 Days

Day: 44.6 Hours

Environment

Temp: -133 °C

Axial Tilt: 25.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 99

Radius: 10.1

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.63 AU - 0.95 AU

Year: 461 Days

Day: 13.6 Hours

Environment

Temp: -147 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 62,691,703 km

• M1: 125,662 km (0.045 R)
• M2: 565,031 km (0.063 R)
• M3: 970,890 km (0.109 R)
• M4: 1,299,706 km (0.103 R)
• M5: 1,746,256 km (0.1 R)
• M6: 2,242,771 km (0.104 R)
• M7: 2,969,817 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 322.7

Radius: 12.8

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.79 AU - 0.97 AU

Year: 542 Days

Day: 11.6 Hours

Environment

Temp: -157 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 62,691,703 km

• M1: 159,322 km (0.054 R)
• M2: 883,226 km (0.077 R)
• M3: 2,157,500 km (0.052 R)
• M4: 2,712,808 km (0.09 R)
• M5: 3,185,387 km (0.088 R)
• M6: 3,724,987 km (0.118 R)
• M7: 5,184,763 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 365.9

Radius: 13.6

Gravity: 1.98 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.84 AU - 1.4 AU

Year: 778 Days

Day: 8.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 62,691,703 km

• M1: 169,195 km (0.054 R)
• M2: 598,541 km (0.108 R)
• M3: 1,504,655 km (0.049 R)
• M4: 2,016,280 km (0.118 R)
• M5: 2,633,970 km (0.069 R)
• M6: 3,514,652 km (0.095 R)
• M7: 3,954,620 km (0.081 R)
• M8: 4,898,283 km (0.096 R)
• M9: 5,449,850 km (0.12 R)
• M10: 6,155,055 km (0.073 R)
• M11: 6,698,394 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344.2

Radius: 8.6

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.94 AU - 1.34 AU

Year: 798 Days

Day: 12.2 Hours

Environment

Temp: -170 °C

Axial Tilt: 45.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 62,691,703 km

• M1: 106,962 km (0.086 R)
• M2: 442,511 km (0.114 R)
• M3: 871,856 km (0.111 R)
• M4: 1,536,221 km (0.09 R)
• M5: 2,135,061 km (0.113 R)
• M6: 3,737,254 km (0.103 R)
• M7: 4,737,166 km (0.107 R)
• M8: 5,299,505 km (0.044 R)
• M9: 6,111,372 km (0.113 R)
• M10: 6,596,967 km (0.078 R)
• M11: 7,003,724 km (0.045 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 379.5

Radius: 10.3

Gravity: 3.58 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 3.2 AU - 5.22 AU

Year: 5667 Days

Day: 6.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 62,691,703 km

• M1: 130,150 km (0.104 R)
• M2: 588,817 km (0.082 R)
• M3: 966,701 km (0.111 R)
• M4: 2,173,208 km (0.04 R)
• M5: 2,589,390 km (0.104 R)
• M6: 3,207,977 km (0.047 R)
• M7: 4,329,512 km (0.098 R)
• M8: 4,967,248 km (0.109 R)
• M9: 9,449,798 km (0.118 R)
• M10: 9,812,424 km (0.094 R)
• M11: 12,714,173 km (0.037 R)
• M12: 16,839,036 km (0.11 R)
• M13: 18,915,454 km (0.1 R)
• M14: 20,681,756 km (0.103 R)
• M15: 23,496,889 km (0.064 R)
• M16: 25,613,250 km (0.051 R)
• M17: 26,004,149 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 744.7

Radius: 3.7

Gravity: 54.4 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 6.22 AU - 9.42 AU

Year: 14346 Days

Day: 15.4 Hours

Environment

Temp: -234 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 62,691,703 km

• M1: 46,076 km (0.09 R)
• M2: 376,089 km (0.117 R)
• M3: 2,137,454 km (0.087 R)
• M4: 3,042,521 km (0.077 R)
• M5: 4,363,620 km (0.103 R)
• M6: 5,754,581 km (0.102 R)
• M7: 7,598,225 km (0.077 R)
• M8: 11,955,563 km (0.113 R)
• M9: 13,645,271 km (0.107 R)
• M10: 15,121,203 km (0.085 R)
• M11: 23,623,748 km (0.066 R)
• M12: 26,474,634 km (0.071 R)
• M13: 32,000,481 km (0.086 R)
• M14: 33,834,102 km (0.072 R)
• M15: 42,446,900 km (0.1 R)
• M16: 43,764,259 km (0.079 R)
• M17: 46,019,895 km (0.096 R)
• M18: 54,267,376 km (0.074 R)
• M19: 57,044,361 km (0.079 R)
• M20: 59,007,683 km (0.073 R)
• M21: 61,570,893 km (0.073 R)
• M22: 62,316,639 km (0.076 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 215 - 11,941 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit