🌌 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: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.36

Radius: 0.66

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.53 AU - 0.55 AU

Year: 142 Days

Day: 33.7 Hours

Environment

Temp: 206 °C

Axial Tilt: 38.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.72

Radius: 0.88

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.51 AU - 0.69 AU

Year: 166 Days

Day: 45.2 Hours

Environment

Temp: 180 °C

Axial Tilt: 32.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.87

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.73 AU - 1.11 AU

Year: 316 Days

Day: 27.4 Hours

Environment

Temp: 127 °C

Axial Tilt: 32.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 49,300,372 km

• M1: 194,328 km (0.081 R)
• M2: 330,163 km (0.101 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.09 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.74

Radius: 0.89

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 1.06 AU - 1.12 AU

Year: 408 Days

Day: 39.5 Hours

Environment

Temp: 38 °C

Axial Tilt: 9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.34 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.69

Radius: 1.23

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.1 AU - 1.58 AU

Year: 556 Days

Day: 44.7 Hours

Environment

Temp: 8 °C

Axial Tilt: 19.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 6 - Terrestrial

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.88

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.86 AU - 1.86 AU

Year: 909 Days

Day: 42 Hours

Environment

Temp: -55 °C

Axial Tilt: 4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.78 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 7.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 367.6

Radius: 14.6

Gravity: 1.72 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 6.31 AU - 9.07 AU

Year: 7638 Days

Day: 14.4 Hours

Environment

Temp: -164 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (71)

Outer Limit: 49,300,372 km

• M1: 184,454 km (0.091 R)
• M2: 375,640 km (0.108 R)
• M3: 490,531 km (0.109 R)
• M4: 705,653 km (0.068 R)
• M5: 1,251,386 km (0.119 R)
• M6: 1,362,388 km (0.079 R)
• M7: 1,460,225 km (0.055 R)
• M8: 1,560,755 km (0.097 R)
• M9: 1,698,534 km (0.092 R)
• M10: 1,895,106 km (0.109 R)
• M11: 2,024,358 km (0.102 R)
• M12: 2,156,603 km (0.099 R)
• M13: 2,653,268 km (0.076 R)
• M14: 2,861,957 km (0.106 R)
• M15: 2,990,013 km (0.054 R)
• M16: 3,296,239 km (0.091 R)
• M17: 3,408,139 km (0.112 R)
• M18: 3,821,627 km (0.048 R)
• M19: 4,300,191 km (0.062 R)
• M20: 4,422,861 km (0.072 R)
• M21: 4,546,878 km (0.115 R)
• M22: 5,131,805 km (0.114 R)
• M23: 5,314,614 km (0.12 R)
• M24: 5,526,295 km (0.087 R)
• M25: 5,903,431 km (0.085 R)
• M26: 6,485,068 km (0.11 R)
• M27: 6,598,014 km (0.088 R)
• M28: 6,883,148 km (0.062 R)
• M29: 7,201,492 km (0.025 R)
• M30: 7,495,302 km (0.074 R)
• M31: 7,613,784 km (0.082 R)
• M32: 8,003,636 km (0.049 R)
• M33: 8,246,732 km (0.042 R)
• M34: 8,896,735 km (0.115 R)
• M35: 8,990,982 km (0.074 R)
• M36: 9,563,343 km (0.071 R)
• M37: 9,692,147 km (0.06 R)
• M38: 10,510,298 km (0.096 R)
• M39: 10,843,901 km (0.119 R)
• M40: 12,004,032 km (0.118 R)
• M41: 12,704,749 km (0.068 R)
• M42: 12,882,022 km (0.083 R)
• M43: 13,024,589 km (0.062 R)
• M44: 13,454,982 km (0.088 R)
• M45: 14,293,179 km (0.11 R)
• M46: 15,185,829 km (0.083 R)
• M47: 16,442,601 km (0.057 R)
• M48: 17,772,377 km (0.089 R)
• M49: 18,010,686 km (0.092 R)
• M50: 18,974,246 km (0.102 R)
• M51: 19,503,224 km (0.11 R)
• M52: 19,749,013 km (0.106 R)
• M53: 20,450,927 km (0.105 R)
• M54: 20,993,368 km (0.115 R)
• M55: 21,287,328 km (0.087 R)
• M56: 22,049,679 km (0.09 R)
• M57: 22,391,360 km (0.071 R)
• M58: 22,519,865 km (0.105 R)
• M59: 23,253,194 km (0.117 R)
• M60: 24,038,283 km (0.089 R)
• M61: 24,433,970 km (0.108 R)
• M62: 25,232,074 km (0.101 R)
• M63: 27,035,926 km (0.045 R)
• M64: 27,127,180 km (0.109 R)
• M65: 27,264,362 km (0.101 R)
• M66: 27,493,396 km (0.096 R)
• M67: 27,723,178 km (0.04 R)
• M68: 27,815,181 km (0.103 R)
• M69: 27,907,333 km (0.025 R)
• M70: 29,208,386 km (0.11 R)
• M71: 32,546,513 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 122.1

Radius: 3.7

Gravity: 8.92 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 14.58 AU - 19.06 AU

Year: 24707 Days

Day: 18 Hours

Environment

Temp: -196 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (51)

Outer Limit: 49,300,372 km

• M1: 155,133 km (0.112 R)
• M2: 314,904 km (0.109 R)
• M3: 454,927 km (0.119 R)
• M4: 647,011 km (0.034 R)
• M5: 698,772 km (0.101 R)
• M6: 788,082 km (0.037 R)
• M7: 958,174 km (0.074 R)
• M8: 1,288,187 km (0.066 R)
• M9: 1,769,892 km (0.05 R)
• M10: 1,941,780 km (0.063 R)
• M11: 2,275,234 km (0.114 R)
• M12: 2,598,515 km (0.072 R)
• M13: 3,022,625 km (0.054 R)
• M14: 3,257,643 km (0.077 R)
• M15: 4,060,984 km (0.115 R)
• M16: 8,753,869 km (0.113 R)
• M17: 9,853,862 km (0.026 R)
• M18: 11,221,336 km (0.105 R)
• M19: 12,882,172 km (0.094 R)
• M20: 13,023,991 km (0.107 R)
• M21: 13,261,552 km (0.093 R)
• M22: 15,113,125 km (0.117 R)
• M23: 15,513,000 km (0.066 R)
• M24: 16,682,407 km (0.094 R)
• M25: 17,985,105 km (0.117 R)
• M26: 19,482,579 km (0.075 R)
• M27: 20,301,029 km (0.103 R)
• M28: 20,797,545 km (0.066 R)
• M29: 21,633,797 km (0.109 R)
• M30: 22,708,807 km (0.072 R)
• M31: 23,109,281 km (0.072 R)
• M32: 23,166,726 km (0.03 R)
• M33: 23,454,403 km (0.049 R)
• M34: 23,975,153 km (0.108 R)
• M35: 26,215,830 km (0.069 R)
• M36: 26,696,039 km (0.079 R)
• M37: 28,153,870 km (0.053 R)
• M38: 28,645,449 km (0.113 R)
• M39: 28,954,219 km (0.098 R)
• M40: 30,325,732 km (0.096 R)
• M41: 31,272,986 km (0.107 R)
• M42: 32,101,609 km (0.067 R)
• M43: 32,808,459 km (0.102 R)
• M44: 37,897,928 km (0.09 R)
• M45: 38,236,767 km (0.055 R)
• M46: 39,396,450 km (0.029 R)
• M47: 39,602,296 km (0.112 R)
• M48: 40,152,966 km (0.027 R)
• M49: 42,310,616 km (0.11 R)
• M50: 43,722,521 km (0.116 R)
• M51: 45,437,062 km (0.112 R)

Kuiper Belt

Range: 30.6 - 57.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 172 - 18,479 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit