🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.53 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.06 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.01

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.93 AU - 1.19 AU

Year: 387 Days

Day: 13 Hours

Environment

Temp: 22 °C

Axial Tilt: 26.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.11

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.47 AU - 1.59 AU

Year: 671 Days

Day: 43.2 Hours

Environment

Temp: -35 °C

Axial Tilt: 37.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.8

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 1.8 AU - 1.8 AU

Year: 857 Days

Day: 12.4 Hours

Environment

Temp: -53 °C

Axial Tilt: 46.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 70,783,737 km

• M1: 259,702 km (0.097 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.75

Radius: 1.25

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 1.78 AU - 2.76 AU

Year: 1213 Days

Day: 25 Hours

Environment

Temp: -62 °C

Axial Tilt: 12.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.07

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 2.37 AU - 2.55 AU

Year: 1369 Days

Day: 34.1 Hours

Environment

Temp: -77 °C

Axial Tilt: 7.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 70,783,737 km

• M1: 1,845,140 km (0.092 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.5

Radius: 0.76

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 3.22 AU - 3.32 AU

Year: 2098 Days

Day: 16 Hours

Environment

Temp: -99 °C

Axial Tilt: 5.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.9 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 6.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 857.2

Radius: 11.3

Gravity: 6.71 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 6.03 AU - 7.03 AU

Year: 5920 Days

Day: 10.8 Hours

Environment

Temp: -150 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 70,783,737 km

• M1: 141,669 km (0.111 R)
• M2: 501,003 km (0.113 R)
• M3: 1,285,195 km (0.119 R)
• M4: 1,963,173 km (0.101 R)
• M5: 2,325,648 km (0.102 R)
• M6: 3,402,304 km (0.081 R)
• M7: 4,202,803 km (0.116 R)
• M8: 7,705,188 km (0.109 R)
• M9: 9,784,449 km (0.104 R)
• M10: 10,149,019 km (0.109 R)
• M11: 11,149,081 km (0.074 R)
• M12: 12,266,128 km (0.033 R)
• M13: 14,427,368 km (0.094 R)
• M14: 15,201,088 km (0.053 R)
• M15: 23,214,298 km (0.098 R)
• M16: 23,946,281 km (0.066 R)
• M17: 35,875,365 km (0.091 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 992.2

Radius: 3.5

Gravity: 81 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 12.83 AU - 13.35 AU

Year: 16801 Days

Day: 21.2 Hours

Environment

Temp: -172 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 70,783,737 km

• M1: 45,777 km (0.054 R)
• M2: 186,100 km (0.097 R)
• M3: 387,608 km (0.103 R)
• M4: 568,921 km (0.086 R)
• M5: 859,141 km (0.093 R)
• M6: 1,115,851 km (0.097 R)
• M7: 1,602,193 km (0.095 R)
• M8: 2,153,461 km (0.036 R)
• M9: 4,483,598 km (0.098 R)
• M10: 5,439,977 km (0.083 R)
• M11: 5,924,076 km (0.063 R)
• M12: 6,305,700 km (0.112 R)
• M13: 7,996,904 km (0.095 R)
• M14: 8,891,499 km (0.116 R)
• M15: 9,334,758 km (0.09 R)
• M16: 10,086,038 km (0.107 R)
• M17: 10,752,646 km (0.104 R)
• M18: 11,839,923 km (0.12 R)
• M19: 12,308,165 km (0.104 R)
• M20: 13,641,082 km (0.084 R)
• M21: 14,606,736 km (0.114 R)
• M22: 20,031,005 km (0.085 R)
• M23: 21,967,101 km (0.073 R)
• M24: 25,982,457 km (0.049 R)
• M25: 26,658,191 km (0.063 R)
• M26: 30,212,936 km (0.066 R)
• M27: 32,103,254 km (0.112 R)
• M28: 35,015,925 km (0.11 R)
• M29: 46,922,419 km (0.057 R)
• M30: 47,088,323 km (0.113 R)
• M31: 55,516,667 km (0.101 R)
• M32: 55,888,119 km (0.042 R)
• M33: 63,062,683 km (0.103 R)
• M34: 64,076,957 km (0.116 R)
• M35: 65,722,234 km (0.102 R)
• M36: 66,346,506 km (0.083 R)
• M37: 69,526,807 km (0.037 R)
• M38: 73,923,189 km (0.088 R)
• M39: 75,050,559 km (0.085 R)

Planet 9 - Ice Giant

Semi-Major Axis: 20.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 200.5

Radius: 3.2

Gravity: 19.58 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 17.24 AU - 23.96 AU

Year: 33169 Days

Day: 23 Hours

Environment

Temp: -202 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 70,783,737 km

• M1: 141,819 km (0.112 R)
• M2: 459,265 km (0.076 R)
• M3: 1,712,148 km (0.099 R)
• M4: 2,188,318 km (0.107 R)
• M5: 2,652,071 km (0.117 R)
• M6: 4,669,997 km (0.069 R)
• M7: 7,384,600 km (0.117 R)
• M8: 10,512,392 km (0.093 R)
• M9: 10,994,845 km (0.092 R)
• M10: 11,117,665 km (0.061 R)
• M11: 14,495,435 km (0.092 R)
• M12: 15,939,952 km (0.069 R)
• M13: 16,495,409 km (0.101 R)
• M14: 23,584,254 km (0.042 R)
• M15: 30,364,927 km (0.111 R)
• M16: 30,728,450 km (0.057 R)
• M17: 35,585,743 km (0.12 R)
• M18: 36,260,729 km (0.034 R)
• M19: 36,532,997 km (0.111 R)
• M20: 39,331,823 km (0.114 R)
• M21: 39,475,437 km (0.095 R)
• M22: 52,129,622 km (0.05 R)
• M23: 56,576,868 km (0.076 R)

Kuiper Belt

Range: 30.9 - 45.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 403 - 15,674 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit