🌌 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: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.4

Radius: 1.14

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.51 AU - 0.61 AU

Year: 157 Days

Day: 33.6 Hours

Environment

Temp: 206 °C

Axial Tilt: 46.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 33,986,878 km

• M1: 42,785 km (0.06 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.76

Radius: 0.9

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.54 AU - 0.62 AU

Year: 166 Days

Day: 34.5 Hours

Environment

Temp: 198 °C

Axial Tilt: 133.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 33,986,878 km

• M1: 140,622 km (0.102 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.09

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.66 AU - 0.7 AU

Year: 210 Days

Day: 32.4 Hours

Environment

Temp: 136 °C

Axial Tilt: 37.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.07 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.06

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.82 AU - 1.32 AU

Year: 415 Days

Day: 14.7 Hours

Environment

Temp: 3 °C

Axial Tilt: 33.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 33,986,878 km

• M1: 472,280 km (0.085 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.86

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.29 AU - 1.57 AU

Year: 641 Days

Day: 23.6 Hours

Environment

Temp: -36 °C

Axial Tilt: 20 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.06

Radius: 1.02

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.91 AU - 2.87 AU

Year: 1385 Days

Day: 42.3 Hours

Environment

Temp: -91 °C

Axial Tilt: 36.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 3.18 AU - 3.94 AU

Year: 2517 Days

Day: 27.7 Hours

Environment

Temp: -127 °C

Axial Tilt: 36.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 33,986,878 km

• M1: 97,239 km (0.072 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.3

Radius: 14.8

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 5.31 AU - 7.45 AU

Year: 6039 Days

Day: 9 Hours

Environment

Temp: -159 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 33,986,878 km

• M1: 184,005 km (0.118 R)
• M2: 1,269,188 km (0.06 R)
• M3: 2,210,458 km (0.084 R)
• M4: 3,458,703 km (0.087 R)
• M5: 4,101,824 km (0.087 R)
• M6: 4,598,938 km (0.106 R)
• M7: 5,889,219 km (0.09 R)
• M8: 7,239,490 km (0.041 R)
• M9: 8,903,467 km (0.08 R)
• M10: 9,417,036 km (0.109 R)
• M11: 10,331,379 km (0.095 R)
• M12: 10,854,522 km (0.077 R)
• M13: 11,349,691 km (0.065 R)
• M14: 12,144,804 km (0.043 R)
• M15: 13,077,098 km (0.106 R)
• M16: 15,475,451 km (0.047 R)
• M17: 15,988,272 km (0.115 R)
• M18: 20,509,569 km (0.115 R)
• M19: 22,260,911 km (0.086 R)
• M20: 23,284,161 km (0.106 R)
• M21: 25,424,607 km (0.092 R)

Planet 9 - Gas Giant

Semi-Major Axis: 7.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 460.1

Radius: 14.8

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 6.25 AU - 8.21 AU

Year: 7285 Days

Day: 9.2 Hours

Environment

Temp: -169 °C

Axial Tilt: 116.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 33,986,878 km

• M1: 191,784 km (0.096 R)
• M2: 1,016,966 km (0.111 R)
• M3: 1,774,380 km (0.114 R)
• M4: 2,479,884 km (0.111 R)
• M5: 3,829,705 km (0.093 R)
• M6: 4,384,115 km (0.069 R)
• M7: 5,994,087 km (0.052 R)
• M8: 9,045,286 km (0.095 R)
• M9: 10,533,934 km (0.112 R)
• M10: 11,531,752 km (0.09 R)
• M11: 15,376,866 km (0.059 R)
• M12: 15,918,709 km (0.05 R)
• M13: 16,535,651 km (0.099 R)
• M14: 17,426,207 km (0.102 R)
• M15: 18,958,538 km (0.081 R)
• M16: 21,985,950 km (0.111 R)
• M17: 22,907,024 km (0.101 R)
• M18: 25,909,603 km (0.033 R)
• M19: 26,420,181 km (0.109 R)
• M20: 31,418,246 km (0.059 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 546 - 13,625 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit