🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.87

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.77 AU - 1.23 AU

Year: 350 Days

Day: 29.7 Hours

Environment

Temp: 112 °C

Axial Tilt: 23.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 64,707,108 km

• M1: 529,726 km (0.104 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.01 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.56

Radius: 1.46

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.83 AU - 1.19 AU

Year: 355 Days

Day: 41.8 Hours

Environment

Temp: 78 °C

Axial Tilt: 35.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.55

Radius: 0.79

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.09 AU - 1.29 AU

Year: 454 Days

Day: 31.3 Hours

Environment

Temp: 20 °C

Axial Tilt: 27.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 64,707,108 km

• M1: 333,603 km (0.064 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.22

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.88 AU - 2.64 AU

Year: 1189 Days

Day: 16.6 Hours

Environment

Temp: -63 °C

Axial Tilt: 2.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.76

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 2.15 AU - 3.31 AU

Year: 1578 Days

Day: 16.3 Hours

Environment

Temp: -89 °C

Axial Tilt: 26.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 64,707,108 km

• M1: 327,769 km (0.115 R)

Asteroid Belt

Center: 6.3 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 9.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.2

Radius: 10.7

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 8.19 AU - 11.55 AU

Year: 10848 Days

Day: 8.6 Hours

Environment

Temp: -166 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (73)

Outer Limit: 64,707,108 km

• M1: 160,519 km (0.1 R)
• M2: 412,142 km (0.066 R)
• M3: 935,136 km (0.066 R)
• M4: 1,215,184 km (0.094 R)
• M5: 1,372,710 km (0.085 R)
• M6: 1,552,527 km (0.12 R)
• M7: 1,661,135 km (0.084 R)
• M8: 1,772,286 km (0.09 R)
• M9: 2,312,484 km (0.108 R)
• M10: 2,455,499 km (0.082 R)
• M11: 2,582,957 km (0.059 R)
• M12: 2,825,605 km (0.102 R)
• M13: 2,978,793 km (0.089 R)
• M14: 3,174,018 km (0.09 R)
• M15: 3,536,344 km (0.098 R)
• M16: 3,701,650 km (0.115 R)
• M17: 4,082,975 km (0.039 R)
• M18: 4,278,499 km (0.058 R)
• M19: 4,588,765 km (0.093 R)
• M20: 5,091,264 km (0.104 R)
• M21: 5,254,775 km (0.09 R)
• M22: 5,349,021 km (0.032 R)
• M23: 5,877,551 km (0.093 R)
• M24: 5,951,003 km (0.105 R)
• M25: 6,222,673 km (0.092 R)
• M26: 6,397,852 km (0.078 R)
• M27: 7,561,873 km (0.104 R)
• M28: 8,511,820 km (0.067 R)
• M29: 8,818,196 km (0.112 R)
• M30: 9,991,791 km (0.101 R)
• M31: 10,344,543 km (0.073 R)
• M32: 11,001,876 km (0.087 R)
• M33: 11,366,297 km (0.111 R)
• M34: 11,889,141 km (0.057 R)
• M35: 12,200,454 km (0.118 R)
• M36: 12,357,083 km (0.055 R)
• M37: 12,451,330 km (0.038 R)
• M38: 12,735,716 km (0.076 R)
• M39: 12,990,331 km (0.055 R)
• M40: 13,310,919 km (0.04 R)
• M41: 13,601,738 km (0.108 R)
• M42: 13,699,126 km (0.103 R)
• M43: 14,091,072 km (0.094 R)
• M44: 15,020,075 km (0.119 R)
• M45: 15,187,924 km (0.097 R)
• M46: 15,424,139 km (0.057 R)
• M47: 15,593,633 km (0.028 R)
• M48: 16,243,187 km (0.081 R)
• M49: 16,312,152 km (0.049 R)
• M50: 17,146,459 km (0.114 R)
• M51: 17,463,008 km (0.059 R)
• M52: 17,745,898 km (0.057 R)
• M53: 18,316,314 km (0.057 R)
• M54: 18,892,715 km (0.061 R)
• M55: 19,548,403 km (0.063 R)
• M56: 20,434,172 km (0.073 R)
• M57: 21,408,502 km (0.088 R)
• M58: 21,521,898 km (0.063 R)
• M59: 21,597,594 km (0.074 R)
• M60: 21,673,440 km (0.093 R)
• M61: 21,939,425 km (0.1 R)
• M62: 22,359,646 km (0.116 R)
• M63: 22,821,155 km (0.047 R)
• M64: 23,324,552 km (0.114 R)
• M65: 24,067,006 km (0.116 R)
• M66: 24,460,897 km (0.089 R)
• M67: 24,896,526 km (0.085 R)
• M68: 25,095,492 km (0.07 R)
• M69: 25,655,137 km (0.076 R)
• M70: 26,017,164 km (0.111 R)
• M71: 26,219,121 km (0.08 R)
• M72: 26,827,685 km (0.094 R)
• M73: 27,154,258 km (0.076 R)

Planet 7 - Ice Giant

Semi-Major Axis: 18.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 223.2

Radius: 5.5

Gravity: 7.38 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 14.05 AU - 22.63 AU

Year: 27477 Days

Day: 19.2 Hours

Environment

Temp: -187 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (75)

Outer Limit: 64,707,108 km

• M1: 164,258 km (0.114 R)
• M2: 199,264 km (0.092 R)
• M3: 293,810 km (0.057 R)
• M4: 624,721 km (0.092 R)
• M5: 2,491,253 km (0.048 R)
• M6: 2,688,423 km (0.113 R)
• M7: 2,959,345 km (0.095 R)
• M8: 3,133,178 km (0.064 R)
• M9: 3,674,423 km (0.056 R)
• M10: 5,087,225 km (0.096 R)
• M11: 5,253,578 km (0.078 R)
• M12: 5,936,791 km (0.05 R)
• M13: 6,377,956 km (0.089 R)
• M14: 6,921,145 km (0.054 R)
• M15: 7,198,350 km (0.059 R)
• M16: 7,291,550 km (0.081 R)
• M17: 7,811,253 km (0.054 R)
• M18: 8,051,507 km (0.037 R)
• M19: 9,851,319 km (0.107 R)
• M20: 9,954,841 km (0.106 R)
• M21: 10,110,871 km (0.092 R)
• M22: 13,166,857 km (0.095 R)
• M23: 14,205,215 km (0.053 R)
• M24: 14,734,193 km (0.038 R)
• M25: 15,030,846 km (0.103 R)
• M26: 15,150,076 km (0.072 R)
• M27: 16,913,834 km (0.046 R)
• M28: 17,037,851 km (0.088 R)
• M29: 17,162,167 km (0.089 R)
• M30: 18,231,044 km (0.111 R)
• M31: 18,741,472 km (0.058 R)
• M32: 18,934,004 km (0.111 R)
• M33: 19,127,285 km (0.103 R)
• M34: 19,580,865 km (0.082 R)
• M35: 20,037,887 km (0.051 R)
• M36: 21,229,284 km (0.114 R)
• M37: 21,968,597 km (0.076 R)
• M38: 22,171,601 km (0.079 R)
• M39: 24,656,871 km (0.077 R)
• M40: 25,575,850 km (0.118 R)
• M41: 26,722,069 km (0.085 R)
• M42: 26,938,837 km (0.102 R)
• M43: 28,251,857 km (0.097 R)
• M44: 29,510,873 km (0.098 R)
• M45: 30,260,059 km (0.114 R)
• M46: 30,712,592 km (0.088 R)
• M47: 30,863,985 km (0.102 R)
• M48: 31,015,528 km (0.043 R)
• M49: 31,777,131 km (0.04 R)
• M50: 33,318,737 km (0.053 R)
• M51: 33,474,169 km (0.047 R)
• M52: 33,551,960 km (0.067 R)
• M53: 36,234,100 km (0.072 R)
• M54: 37,439,111 km (0.114 R)
• M55: 38,249,782 km (0.057 R)
• M56: 38,984,308 km (0.104 R)
• M57: 39,723,471 km (0.113 R)
• M58: 40,301,517 km (0.108 R)
• M59: 41,549,612 km (0.083 R)
• M60: 44,339,911 km (0.119 R)
• M61: 44,425,332 km (0.048 R)
• M62: 44,939,500 km (0.098 R)
• M63: 45,455,612 km (0.031 R)
• M64: 45,541,781 km (0.081 R)
• M65: 45,628,099 km (0.111 R)
• M66: 49,299,679 km (0.112 R)
• M67: 49,920,809 km (0.033 R)
• M68: 54,523,637 km (0.094 R)
• M69: 55,349,866 km (0.117 R)
• M70: 58,789,869 km (0.078 R)
• M71: 59,260,055 km (0.111 R)
• M72: 60,583,098 km (0.066 R)
• M73: 60,867,783 km (0.103 R)
• M74: 61,343,504 km (0.106 R)
• M75: 64,707,063 km (0.073 R)

Kuiper Belt

Range: 31.4 - 47.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 306 - 12,371 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit