🌌 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: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.59

Radius: 1.46

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.54 AU - 0.56 AU

Year: 150 Days

Day: 27.5 Hours

Environment

Temp: 192 °C

Axial Tilt: 17.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 46,918,188 km

• M1: 155,283 km (0.074 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.82

Radius: 1.88

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.79 AU - 0.99 AU

Year: 308 Days

Day: 15.8 Hours

Environment

Temp: 85 °C

Axial Tilt: 18.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 46,918,188 km

• M1: 52,060 km (0.105 R)
• M2: 111,151 km (0.07 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.33 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.43

Radius: 1.15

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.13 AU - 1.53 AU

Year: 563 Days

Day: 15.8 Hours

Environment

Temp: -24 °C

Axial Tilt: 4.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.33

Radius: 1.4

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.35 AU - 1.55 AU

Year: 641 Days

Day: 46.4 Hours

Environment

Temp: -29 °C

Axial Tilt: 17.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.16

Radius: 0.48

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.76 AU - 2.5 AU

Year: 1141 Days

Day: 19.7 Hours

Environment

Temp: -67 °C

Axial Tilt: 35.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.58

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 2.18 AU - 2.66 AU

Year: 1382 Days

Day: 23.2 Hours

Environment

Temp: -80 °C

Axial Tilt: 7.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.79

Radius: 1.26

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 3.55 AU - 3.65 AU

Year: 2507 Days

Day: 17.5 Hours

Environment

Temp: -125 °C

Axial Tilt: 28.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 10.74 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 17.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 83.4

Radius: 3.6

Gravity: 6.44 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 14.13 AU - 21.63 AU

Year: 27754 Days

Day: 20.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (73)

Outer Limit: 46,918,188 km

• M1: 91,703 km (0.104 R)
• M2: 288,275 km (0.106 R)
• M3: 405,709 km (0.113 R)
• M4: 821,592 km (0.074 R)
• M5: 1,065,885 km (0.097 R)
• M6: 1,374,206 km (0.057 R)
• M7: 1,482,814 km (0.097 R)
• M8: 1,754,783 km (0.112 R)
• M9: 2,066,844 km (0.101 R)
• M10: 2,877,515 km (0.084 R)
• M11: 3,044,616 km (0.09 R)
• M12: 3,072,890 km (0.1 R)
• M13: 3,157,861 km (0.111 R)
• M14: 3,417,563 km (0.118 R)
• M15: 3,957,462 km (0.093 R)
• M16: 4,620,181 km (0.068 R)
• M17: 4,717,718 km (0.104 R)
• M18: 4,914,589 km (0.064 R)
• M19: 5,798,862 km (0.071 R)
• M20: 5,903,880 km (0.049 R)
• M21: 6,294,929 km (0.06 R)
• M22: 6,730,857 km (0.027 R)
• M23: 7,708,329 km (0.103 R)
• M24: 9,833,816 km (0.109 R)
• M25: 10,001,216 km (0.116 R)
• M26: 10,381,045 km (0.098 R)
• M27: 11,155,064 km (0.082 R)
• M28: 11,548,956 km (0.092 R)
• M29: 12,081,225 km (0.061 R)
• M30: 12,350,351 km (0.077 R)
• M31: 13,123,623 km (0.076 R)
• M32: 13,169,549 km (0.116 R)
• M33: 14,147,321 km (0.066 R)
• M34: 14,955,748 km (0.11 R)
• M35: 15,148,131 km (0.062 R)
• M36: 15,196,301 km (0.051 R)
• M37: 15,438,201 km (0.112 R)
• M38: 15,827,904 km (0.111 R)
• M39: 16,171,530 km (0.029 R)
• M40: 16,270,264 km (0.065 R)
• M41: 17,267,484 km (0.055 R)
• M42: 18,696,592 km (0.118 R)
• M43: 18,903,935 km (0.065 R)
• M44: 19,898,611 km (0.051 R)
• M45: 21,287,179 km (0.066 R)
• M46: 23,875,371 km (0.092 R)
• M47: 24,949,484 km (0.111 R)
• M48: 26,852,219 km (0.092 R)
• M49: 27,437,895 km (0.03 R)
• M50: 27,909,577 km (0.118 R)
• M51: 28,502,882 km (0.083 R)
• M52: 32,459,148 km (0.109 R)
• M53: 35,360,748 km (0.114 R)
• M54: 35,552,981 km (0.028 R)
• M55: 35,681,187 km (0.048 R)
• M56: 35,745,364 km (0.078 R)
• M57: 36,842,515 km (0.062 R)
• M58: 37,362,667 km (0.097 R)
• M59: 37,885,062 km (0.082 R)
• M60: 39,069,578 km (0.117 R)
• M61: 39,135,850 km (0.079 R)
• M62: 40,667,882 km (0.119 R)
• M63: 41,070,749 km (0.102 R)
• M64: 41,407,494 km (0.096 R)
• M65: 43,721,474 km (0.103 R)
• M66: 43,996,435 km (0.1 R)
• M67: 44,134,065 km (0.12 R)
• M68: 45,102,112 km (0.025 R)
• M69: 45,519,042 km (0.073 R)
• M70: 45,728,030 km (0.075 R)
• M71: 45,937,317 km (0.098 R)
• M72: 46,777,609 km (0.111 R)
• M73: 46,847,920 km (0.083 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 296 - 14,676 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit