🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.11

Radius: 1.04

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.72 AU - 0.74 AU

Year: 226 Days

Day: 14.4 Hours

Environment

Temp: 146 °C

Axial Tilt: 49.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.61

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.59 AU - 0.89 AU

Year: 230 Days

Day: 34.8 Hours

Environment

Temp: 193 °C

Axial Tilt: 80.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.45

Radius: 1.82

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.79 AU - 1.17 AU

Year: 351 Days

Day: 18.2 Hours

Environment

Temp: 160 °C

Axial Tilt: 36.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.75

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.24 AU - 1.62 AU

Year: 618 Days

Day: 28.5 Hours

Environment

Temp: -36 °C

Axial Tilt: 33.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 94,577,350 km

• M1: 1,075,908 km (0.058 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.38

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.42 AU - 2.22 AU

Year: 888 Days

Day: 29 Hours

Environment

Temp: -51 °C

Axial Tilt: 36.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 94,577,350 km

• M1: 275,410 km (0.088 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.52

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 3.99 AU - 5.39 AU

Year: 3673 Days

Day: 13.6 Hours

Environment

Temp: -133 °C

Axial Tilt: 17.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 7.26 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 9.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 72.3

Radius: 12.7

Gravity: 0.45 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 8.42 AU - 11.22 AU

Year: 11129 Days

Day: 5.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (45)

Outer Limit: 94,577,350 km

• M1: 296,353 km (0.081 R)
• M2: 495,468 km (0.106 R)
• M3: 577,149 km (0.081 R)
• M4: 910,752 km (0.069 R)
• M5: 1,618,499 km (0.104 R)
• M6: 1,942,528 km (0.043 R)
• M7: 2,081,056 km (0.09 R)
• M8: 2,500,528 km (0.112 R)
• M9: 2,823,809 km (0.056 R)
• M10: 3,605,458 km (0.106 R)
• M11: 4,329,512 km (0.103 R)
• M12: 4,991,782 km (0.071 R)
• M13: 5,553,372 km (0.063 R)
• M14: 5,685,916 km (0.042 R)
• M15: 5,999,174 km (0.054 R)
• M16: 6,410,418 km (0.067 R)
• M17: 7,163,943 km (0.079 R)
• M18: 7,722,990 km (0.117 R)
• M19: 7,846,408 km (0.088 R)
• M20: 8,346,664 km (0.106 R)
• M21: 9,695,438 km (0.115 R)
• M22: 10,043,103 km (0.063 R)
• M23: 10,586,293 km (0.117 R)
• M24: 11,250,508 km (0.11 R)
• M25: 11,334,582 km (0.058 R)
• M26: 11,672,673 km (0.053 R)
• M27: 12,128,647 km (0.112 R)
• M28: 12,416,623 km (0.093 R)
• M29: 14,010,589 km (0.11 R)
• M30: 14,100,946 km (0.046 R)
• M31: 14,831,582 km (0.096 R)
• M32: 14,923,734 km (0.117 R)
• M33: 15,480,986 km (0.108 R)
• M34: 16,999,853 km (0.068 R)
• M35: 18,334,715 km (0.042 R)
• M36: 18,466,810 km (0.091 R)
• M37: 18,665,476 km (0.1 R)
• M38: 19,736,896 km (0.107 R)
• M39: 20,759,397 km (0.033 R)
• M40: 20,931,584 km (0.085 R)
• M41: 22,044,293 km (0.068 R)
• M42: 22,855,862 km (0.056 R)
• M43: 23,605,497 km (0.032 R)
• M44: 23,821,217 km (0.088 R)
• M45: 24,182,047 km (0.055 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 564

Radius: 6

Gravity: 15.67 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 14.53 AU - 23.97 AU

Year: 30545 Days

Day: 20.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (87)

Outer Limit: 94,577,350 km

• M1: 142,268 km (0.1 R)
• M2: 183,706 km (0.098 R)
• M3: 341,981 km (0.12 R)
• M4: 426,055 km (0.071 R)
• M5: 565,630 km (0.108 R)
• M6: 1,824,795 km (0.098 R)
• M7: 2,015,682 km (0.109 R)
• M8: 2,458,043 km (0.105 R)
• M9: 2,929,575 km (0.104 R)
• M10: 3,522,282 km (0.071 R)
• M11: 3,616,828 km (0.079 R)
• M12: 3,856,633 km (0.12 R)
• M13: 4,504,093 km (0.118 R)
• M14: 5,078,100 km (0.095 R)
• M15: 5,238,618 km (0.033 R)
• M16: 6,122,742 km (0.08 R)
• M17: 6,236,586 km (0.072 R)
• M18: 6,351,028 km (0.112 R)
• M19: 6,874,621 km (0.102 R)
• M20: 6,992,952 km (0.118 R)
• M21: 7,655,372 km (0.106 R)
• M22: 7,778,042 km (0.11 R)
• M23: 9,299,303 km (0.03 R)
• M24: 10,362,944 km (0.084 R)
• M25: 11,047,204 km (0.103 R)
• M26: 11,605,055 km (0.12 R)
• M27: 12,675,577 km (0.042 R)
• M28: 13,406,662 km (0.082 R)
• M29: 13,628,665 km (0.117 R)
• M30: 14,377,403 km (0.096 R)
• M31: 15,216,347 km (0.108 R)
• M32: 16,861,625 km (0.089 R)
• M33: 19,224,822 km (0.043 R)
• M34: 19,642,649 km (0.061 R)
• M35: 21,776,214 km (0.038 R)
• M36: 21,863,130 km (0.03 R)
• M37: 25,156,976 km (0.103 R)
• M38: 25,797,405 km (0.095 R)
• M39: 26,165,715 km (0.085 R)
• M40: 28,412,076 km (0.083 R)
• M41: 30,330,669 km (0.113 R)
• M42: 30,427,758 km (0.088 R)
• M43: 31,994,197 km (0.045 R)
• M44: 33,086,262 km (0.118 R)
• M45: 34,392,550 km (0.048 R)
• M46: 35,001,115 km (0.111 R)
• M47: 35,715,594 km (0.043 R)
• M48: 36,435,010 km (0.08 R)
• M49: 38,306,480 km (0.072 R)
• M50: 39,359,649 km (0.118 R)
• M51: 39,571,479 km (0.115 R)
• M52: 40,315,579 km (0.084 R)
• M53: 41,709,981 km (0.11 R)
• M54: 44,435,504 km (0.102 R)
• M55: 44,545,608 km (0.101 R)
• M56: 46,768,932 km (0.119 R)
• M57: 50,285,828 km (0.111 R)
• M58: 51,553,969 km (0.096 R)
• M59: 52,482,972 km (0.09 R)
• M60: 53,183,240 km (0.029 R)
• M61: 54,004,233 km (0.058 R)
• M62: 57,449,621 km (0.117 R)
• M63: 58,533,308 km (0.055 R)
• M64: 63,927,508 km (0.059 R)
• M65: 64,550,434 km (0.037 R)
• M66: 66,305,367 km (0.079 R)
• M67: 66,935,922 km (0.098 R)
• M68: 67,568,571 km (0.028 R)
• M69: 68,457,482 km (0.104 R)
• M70: 68,712,097 km (0.115 R)
• M71: 69,478,038 km (0.066 R)
• M72: 71,663,514 km (0.072 R)
• M73: 75,312,056 km (0.117 R)
• M74: 77,955,002 km (0.059 R)
• M75: 79,287,769 km (0.081 R)
• M76: 82,516,989 km (0.062 R)
• M77: 83,059,431 km (0.114 R)
• M78: 83,466,935 km (0.102 R)
• M79: 84,420,472 km (0.113 R)
• M80: 85,103,835 km (0.109 R)
• M81: 85,651,812 km (0.078 R)
• M82: 88,825,381 km (0.056 R)
• M83: 89,520,413 km (0.055 R)
• M84: 89,659,689 km (0.046 R)
• M85: 89,798,964 km (0.066 R)
• M86: 93,022,350 km (0.104 R)
• M87: 93,869,522 km (0.073 R)

Kuiper Belt

Range: 30.3 - 50.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 218 - 13,521 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit