🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.19

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.69 AU - 0.97 AU

Year: 290 Days

Day: 22.5 Hours

Environment

Temp: 44 °C

Axial Tilt: 38.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 72,627,571 km

• M1: 614,398 km (0.067 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.06

Radius: 1.34

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.91 AU - 2.47 AU

Year: 1241 Days

Day: 44.4 Hours

Environment

Temp: -100 °C

Axial Tilt: 27.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.5

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 2.13 AU - 3.27 AU

Year: 1699 Days

Day: 34.5 Hours

Environment

Temp: -98 °C

Axial Tilt: 15.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.06

Radius: 1.56

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 2.45 AU - 3.31 AU

Year: 1871 Days

Day: 24.3 Hours

Environment

Temp: -106 °C

Axial Tilt: 37.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.41 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.69

Radius: 0.86

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 3.29 AU - 3.53 AU

Year: 2411 Days

Day: 29.3 Hours

Environment

Temp: -127 °C

Axial Tilt: 6.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 72,627,571 km

• M1: 754,123 km (0.054 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 200.1

Radius: 12.3

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 4.4 AU - 6.8 AU

Year: 5074 Days

Day: 5.2 Hours

Environment

Temp: -151 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 72,627,571 km

• M1: 155,283 km (0.071 R)
• M2: 684,410 km (0.034 R)
• M3: 1,371,812 km (0.12 R)
• M4: 2,373,669 km (0.098 R)
• M5: 2,863,902 km (0.115 R)
• M6: 4,915,337 km (0.116 R)
• M7: 5,744,109 km (0.032 R)
• M8: 6,777,980 km (0.099 R)
• M9: 8,191,231 km (0.043 R)
• M10: 9,829,178 km (0.066 R)
• M11: 10,588,836 km (0.11 R)
• M12: 11,551,499 km (0.087 R)
• M13: 12,182,203 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 673.6

Radius: 13.9

Gravity: 3.49 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 6.5 AU - 10.14 AU

Year: 9189 Days

Day: 10.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 72,627,571 km

• M1: 172,935 km (0.092 R)
• M2: 943,514 km (0.048 R)
• M3: 1,629,719 km (0.107 R)
• M4: 3,066,607 km (0.086 R)
• M5: 3,816,242 km (0.055 R)
• M6: 5,782,706 km (0.105 R)
• M7: 6,483,123 km (0.057 R)
• M8: 8,310,311 km (0.061 R)
• M9: 10,459,883 km (0.114 R)
• M10: 12,159,465 km (0.095 R)
• M11: 18,506,453 km (0.084 R)
• M12: 19,030,345 km (0.039 R)
• M13: 22,722,421 km (0.113 R)
• M14: 24,289,009 km (0.101 R)
• M15: 26,962,922 km (0.106 R)
• M16: 28,519,338 km (0.09 R)
• M17: 37,329,306 km (0.042 R)
• M18: 40,127,086 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 12.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 751.9

Radius: 6.2

Gravity: 19.56 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 12.54 AU - 13.32 AU

Year: 17802 Days

Day: 17.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 72,627,571 km

• M1: 83,775 km (0.104 R)
• M2: 312,360 km (0.114 R)
• M3: 521,797 km (0.119 R)
• M4: 1,721,423 km (0.103 R)
• M5: 2,637,261 km (0.079 R)
• M6: 2,878,562 km (0.102 R)
• M7: 4,089,557 km (0.102 R)
• M8: 5,077,352 km (0.057 R)
• M9: 5,765,203 km (0.074 R)
• M10: 6,048,990 km (0.112 R)
• M11: 7,561,574 km (0.063 R)
• M12: 7,852,542 km (0.086 R)
• M13: 8,302,831 km (0.099 R)
• M14: 9,644,425 km (0.068 R)
• M15: 10,817,123 km (0.043 R)
• M16: 11,437,804 km (0.119 R)
• M17: 14,453,398 km (0.103 R)
• M18: 15,436,705 km (0.096 R)
• M19: 17,201,062 km (0.108 R)
• M20: 20,278,440 km (0.066 R)
• M21: 25,716,024 km (0.093 R)
• M22: 26,707,558 km (0.096 R)
• M23: 28,416,564 km (0.105 R)
• M24: 31,053,077 km (0.045 R)
• M25: 38,348,517 km (0.097 R)
• M26: 39,496,531 km (0.084 R)
• M27: 40,667,433 km (0.116 R)
• M28: 50,195,471 km (0.102 R)
• M29: 57,683,892 km (0.061 R)
• M30: 67,114,542 km (0.055 R)
• M31: 68,152,152 km (0.096 R)
• M32: 72,627,522 km (0.109 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 508 - 18,084 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit