🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.67 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.34 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.89

Radius: 0.95

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.27 AU - 1.41 AU

Year: 540 Days

Day: 34.1 Hours

Environment

Temp: 2 °C

Axial Tilt: 23.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 72,000,805 km

• M1: 302,038 km (0.052 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.21

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.63 AU - 2.85 AU

Year: 1580 Days

Day: 22.5 Hours

Environment

Temp: -78 °C

Axial Tilt: 35.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 72,000,805 km

• M1: 306,825 km (0.092 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.96

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 2.35 AU - 3.17 AU

Year: 1597 Days

Day: 20.8 Hours

Environment

Temp: -79 °C

Axial Tilt: 43.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 72,000,805 km

• M1: 630,106 km (0.044 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.53

Radius: 1.19

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 2.59 AU - 2.93 AU

Year: 1597 Days

Day: 14.2 Hours

Environment

Temp: -77 °C

Axial Tilt: 22.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 72,000,805 km

• M1: 369,507 km (0.103 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.53

Radius: 0.78

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 2.55 AU - 4.01 AU

Year: 2069 Days

Day: 31.1 Hours

Environment

Temp: -89 °C

Axial Tilt: 24.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 8.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 13.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 977.7

Radius: 3.3

Gravity: 89.78 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 11.68 AU - 15.74 AU

Year: 17679 Days

Day: 20.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 72,000,805 km

• M1: 40,990 km (0.056 R)
• M2: 414,984 km (0.104 R)
• M3: 700,716 km (0.104 R)
• M4: 1,051,523 km (0.106 R)
• M5: 1,318,256 km (0.11 R)
• M6: 2,045,152 km (0.084 R)
• M7: 2,234,843 km (0.116 R)
• M8: 2,413,313 km (0.063 R)
• M9: 2,577,123 km (0.108 R)
• M10: 3,569,256 km (0.06 R)
• M11: 3,782,133 km (0.082 R)
• M12: 7,420,802 km (0.062 R)
• M13: 9,093,905 km (0.089 R)
• M14: 12,117,577 km (0.072 R)
• M15: 12,528,373 km (0.055 R)
• M16: 13,233,727 km (0.025 R)
• M17: 15,033,838 km (0.115 R)
• M18: 16,905,906 km (0.079 R)
• M19: 18,385,429 km (0.089 R)
• M20: 20,329,603 km (0.081 R)
• M21: 21,301,690 km (0.105 R)
• M22: 21,899,632 km (0.066 R)
• M23: 26,174,541 km (0.116 R)
• M24: 30,973,342 km (0.089 R)
• M25: 31,227,658 km (0.071 R)
• M26: 36,467,623 km (0.054 R)
• M27: 38,044,833 km (0.116 R)
• M28: 38,482,855 km (0.119 R)
• M29: 38,629,611 km (0.072 R)
• M30: 41,488,725 km (0.118 R)
• M31: 41,797,645 km (0.116 R)
• M32: 47,792,929 km (0.037 R)
• M33: 48,473,450 km (0.082 R)
• M34: 55,077,448 km (0.115 R)
• M35: 56,201,826 km (0.101 R)
• M36: 57,532,948 km (0.039 R)
• M37: 58,496,507 km (0.095 R)
• M38: 61,852,885 km (0.117 R)
• M39: 72,018,210 km (0.08 R)
• M40: 73,362,048 km (0.066 R)
• M41: 73,587,641 km (0.103 R)
• M42: 78,905,098 km (0.093 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 303.9

Radius: 7.1

Gravity: 6.03 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 12.25 AU - 16.11 AU

Year: 18596 Days

Day: 22 Hours

Environment

Temp: -188 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 72,000,805 km

• M1: 88,263 km (0.086 R)
• M2: 322,982 km (0.09 R)
• M3: 841,787 km (0.095 R)
• M4: 2,126,384 km (0.052 R)
• M5: 2,772,198 km (0.105 R)
• M6: 3,022,326 km (0.076 R)
• M7: 3,892,387 km (0.046 R)
• M8: 4,119,327 km (0.116 R)
• M9: 9,937,787 km (0.103 R)
• M10: 10,363,692 km (0.061 R)
• M11: 13,955,237 km (0.031 R)
• M12: 14,693,054 km (0.044 R)
• M13: 18,298,961 km (0.088 R)
• M14: 46,371,899 km (0.087 R)
• M15: 49,379,564 km (0.06 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 283.1

Radius: 7.6

Gravity: 4.9 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 15.79 AU - 22.03 AU

Year: 28637 Days

Day: 16.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 72,000,805 km

• M1: 99,782 km (0.081 R)
• M2: 357,090 km (0.111 R)
• M3: 946,805 km (0.112 R)
• M4: 1,541,606 km (0.084 R)
• M5: 4,696,476 km (0.112 R)
• M6: 6,560,016 km (0.109 R)
• M7: 7,465,083 km (0.074 R)
• M8: 7,997,203 km (0.099 R)
• M9: 9,632,906 km (0.084 R)
• M10: 9,916,244 km (0.033 R)
• M11: 11,229,564 km (0.117 R)
• M12: 11,543,420 km (0.055 R)
• M13: 15,013,194 km (0.098 R)
• M14: 15,548,754 km (0.096 R)
• M15: 18,246,303 km (0.107 R)
• M16: 18,856,064 km (0.059 R)
• M17: 20,673,528 km (0.096 R)
• M18: 21,050,515 km (0.099 R)
• M19: 22,505,204 km (0.08 R)
• M20: 26,933,451 km (0.091 R)
• M21: 32,666,939 km (0.035 R)
• M22: 33,956,024 km (0.112 R)
• M23: 35,952,557 km (0.089 R)
• M24: 36,635,172 km (0.04 R)
• M25: 39,020,510 km (0.076 R)
• M26: 41,061,175 km (0.096 R)
• M27: 44,723,181 km (0.072 R)
• M28: 54,998,760 km (0.084 R)
• M29: 58,119,670 km (0.102 R)
• M30: 62,331,150 km (0.029 R)
• M31: 67,772,174 km (0.06 R)

Kuiper Belt

Range: 31.5 - 50.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 365 - 18,630 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit