🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.53

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.52 AU - 0.54 AU

Year: 138 Days

Day: 14.5 Hours

Environment

Temp: 207 °C

Axial Tilt: 36.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 64,526,737 km

• M1: 55,501 km (0.091 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.79

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.84 AU - 1.08 AU

Year: 335 Days

Day: 30 Hours

Environment

Temp: 137 °C

Axial Tilt: 14 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.3 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.36

Radius: 1.8

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 1.23 AU - 1.37 AU

Year: 528 Days

Day: 40 Hours

Environment

Temp: -3 °C

Axial Tilt: 11.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 64,526,737 km

• M1: 42,037 km (0.115 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.55

Radius: 0.79

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 1.39 AU - 1.63 AU

Year: 661 Days

Day: 15.7 Hours

Environment

Temp: -25 °C

Axial Tilt: 12.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.5

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 1.59 AU - 2.61 AU

Year: 1085 Days

Day: 32 Hours

Environment

Temp: -59 °C

Axial Tilt: 39.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 7.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 384

Radius: 14.5

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 7.42 AU - 7.46 AU

Year: 7234 Days

Day: 14.8 Hours

Environment

Temp: -150 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 64,526,737 km

• M1: 180,714 km (0.089 R)
• M2: 1,052,571 km (0.098 R)
• M3: 1,597,107 km (0.089 R)
• M4: 2,645,788 km (0.093 R)
• M5: 3,323,466 km (0.118 R)
• M6: 3,860,523 km (0.043 R)
• M7: 4,710,538 km (0.076 R)
• M8: 5,222,462 km (0.087 R)
• M9: 6,391,120 km (0.066 R)
• M10: 7,986,133 km (0.104 R)
• M11: 8,481,900 km (0.098 R)
• M12: 10,137,649 km (0.054 R)
• M13: 11,658,910 km (0.111 R)
• M14: 13,064,980 km (0.118 R)
• M15: 18,484,612 km (0.096 R)
• M16: 21,177,823 km (0.109 R)
• M17: 24,439,804 km (0.084 R)
• M18: 24,920,163 km (0.092 R)
• M19: 25,406,805 km (0.065 R)
• M20: 26,065,634 km (0.091 R)
• M21: 26,989,999 km (0.065 R)
• M22: 30,260,358 km (0.081 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 766.9

Radius: 14.1

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 7.63 AU - 8.81 AU

Year: 8400 Days

Day: 7 Hours

Environment

Temp: -154 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 64,526,737 km

• M1: 176,675 km (0.09 R)
• M2: 1,073,365 km (0.116 R)
• M3: 2,083,898 km (0.117 R)
• M4: 3,611,592 km (0.104 R)
• M5: 4,117,382 km (0.111 R)
• M6: 4,875,694 km (0.065 R)
• M7: 7,320,123 km (0.12 R)
• M8: 8,263,338 km (0.101 R)
• M9: 9,148,209 km (0.078 R)
• M10: 10,441,782 km (0.031 R)
• M11: 15,706,729 km (0.115 R)
• M12: 17,557,704 km (0.108 R)
• M13: 19,019,724 km (0.025 R)
• M14: 22,352,166 km (0.096 R)
• M15: 29,139,122 km (0.038 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 895.9

Radius: 12.8

Gravity: 5.47 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 10.79 AU - 12.69 AU

Year: 14338 Days

Day: 13.6 Hours

Environment

Temp: -172 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 64,526,737 km

• M1: 160,369 km (0.102 R)
• M2: 1,666,221 km (0.041 R)
• M3: 2,548,849 km (0.065 R)
• M4: 3,134,075 km (0.093 R)
• M5: 3,582,271 km (0.105 R)
• M6: 4,319,788 km (0.108 R)
• M7: 4,911,747 km (0.069 R)
• M8: 6,340,407 km (0.087 R)
• M9: 7,559,031 km (0.116 R)
• M10: 10,341,402 km (0.101 R)
• M11: 11,343,259 km (0.043 R)
• M12: 11,962,145 km (0.066 R)
• M13: 13,403,221 km (0.087 R)
• M14: 18,589,181 km (0.116 R)
• M15: 25,289,520 km (0.115 R)
• M16: 28,890,042 km (0.065 R)
• M17: 30,753,133 km (0.058 R)
• M18: 39,010,188 km (0.107 R)
• M19: 41,719,705 km (0.083 R)
• M20: 43,046,039 km (0.112 R)
• M21: 48,471,954 km (0.118 R)
• M22: 61,979,744 km (0.081 R)
• M23: 65,463,579 km (0.084 R)
• M24: 66,454,067 km (0.067 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 555.3

Radius: 6.1

Gravity: 14.92 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 12.69 AU - 13.97 AU

Year: 17348 Days

Day: 22.1 Hours

Environment

Temp: -191 °C

Axial Tilt: 42.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 64,526,737 km

• M1: 75,996 km (0.058 R)
• M2: 297,700 km (0.036 R)
• M3: 576,101 km (0.063 R)
• M4: 809,923 km (0.108 R)
• M5: 1,047,035 km (0.062 R)
• M6: 1,316,461 km (0.071 R)
• M7: 1,747,303 km (0.06 R)
• M8: 1,977,385 km (0.112 R)
• M9: 2,815,582 km (0.059 R)
• M10: 5,200,172 km (0.087 R)
• M11: 5,793,776 km (0.085 R)
• M12: 7,293,046 km (0.119 R)
• M13: 8,930,694 km (0.082 R)
• M14: 10,394,658 km (0.028 R)
• M15: 10,975,248 km (0.113 R)
• M16: 11,762,133 km (0.114 R)
• M17: 12,978,962 km (0.088 R)
• M18: 13,927,711 km (0.089 R)
• M19: 18,353,714 km (0.118 R)
• M20: 20,973,621 km (0.082 R)
• M21: 39,656,750 km (0.08 R)
• M22: 40,642,750 km (0.084 R)
• M23: 40,927,434 km (0.097 R)
• M24: 43,847,734 km (0.113 R)
• M25: 45,665,049 km (0.057 R)
• M26: 48,165,428 km (0.108 R)
• M27: 49,773,605 km (0.057 R)
• M28: 51,085,728 km (0.097 R)
• M29: 51,917,343 km (0.109 R)
• M30: 57,097,917 km (0.082 R)
• M31: 57,813,593 km (0.09 R)
• M32: 60,365,882 km (0.045 R)
• M33: 60,922,386 km (0.104 R)
• M34: 62,234,210 km (0.114 R)
• M35: 62,992,223 km (0.03 R)
• M36: 63,182,661 km (0.071 R)

Kuiper Belt

Range: 30.8 - 52.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 313 - 10,784 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit