🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.98

Radius: 0.99

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.56 AU - 0.6 AU

Year: 285 Days

Day: 44.7 Hours

Environment

Temp: -135 °C

Axial Tilt: 21.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 42,986,014 km

• M1: 23,636 km (0.1 R)
• M2: 456,722 km (0.104 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.86

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.62 AU - 0.72 AU

Year: 354 Days

Day: 17.5 Hours

Environment

Temp: -135 °C

Axial Tilt: 26 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 182.8

Radius: 12.3

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.66 AU - 1.02 AU

Year: 497 Days

Day: 7.3 Hours

Environment

Temp: -146 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 42,986,014 km

• M1: 153,039 km (0.11 R)
• M2: 646,412 km (0.112 R)
• M3: 1,056,311 km (0.117 R)
• M4: 1,507,947 km (0.078 R)
• M5: 2,074,922 km (0.117 R)
• M6: 2,709,367 km (0.106 R)
• M7: 3,832,398 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344.8

Radius: 13.4

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 1.21 AU - 1.43 AU

Year: 979 Days

Day: 6.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 42,986,014 km

• M1: 166,652 km (0.079 R)
• M2: 663,018 km (0.087 R)
• M3: 1,170,304 km (0.103 R)
• M4: 3,265,722 km (0.102 R)
• M5: 4,970,539 km (0.058 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111.6

Radius: 8.8

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 2.24 AU - 2.72 AU

Year: 2522 Days

Day: 5.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 42,986,014 km

• M1: 109,655 km (0.072 R)
• M2: 494,720 km (0.118 R)
• M3: 875,447 km (0.117 R)
• M4: 1,521,710 km (0.109 R)
• M5: 3,595,585 km (0.106 R)
• M6: 4,098,832 km (0.092 R)
• M7: 6,259,773 km (0.032 R)
• M8: 6,778,429 km (0.09 R)
• M9: 8,161,013 km (0.107 R)
• M10: 8,835,250 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 318.5

Radius: 8.6

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 2.56 AU - 4.24 AU

Year: 4048 Days

Day: 14.5 Hours

Environment

Temp: -198 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 42,986,014 km

• M1: 106,962 km (0.102 R)
• M2: 411,544 km (0.119 R)
• M3: 1,089,820 km (0.107 R)
• M4: 1,429,856 km (0.118 R)
• M5: 2,011,044 km (0.114 R)
• M6: 2,694,706 km (0.112 R)
• M7: 3,150,382 km (0.037 R)
• M8: 4,132,940 km (0.118 R)
• M9: 4,672,390 km (0.043 R)
• M10: 4,971,137 km (0.104 R)
• M11: 5,658,091 km (0.083 R)
• M12: 5,971,199 km (0.052 R)
• M13: 6,323,502 km (0.082 R)
• M14: 10,572,979 km (0.074 R)
• M15: 11,539,830 km (0.107 R)
• M16: 15,949,676 km (0.071 R)
• M17: 17,328,071 km (0.097 R)
• M18: 19,542,119 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 426.9

Radius: 8.1

Gravity: 6.51 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 3.15 AU - 4.71 AU

Year: 5030 Days

Day: 11.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 42,986,014 km

• M1: 100,829 km (0.107 R)
• M2: 402,418 km (0.049 R)
• M3: 861,833 km (0.114 R)
• M4: 1,187,957 km (0.073 R)
• M5: 1,527,394 km (0.072 R)
• M6: 2,343,451 km (0.089 R)
• M7: 2,830,541 km (0.097 R)
• M8: 3,172,971 km (0.119 R)
• M9: 3,962,997 km (0.081 R)
• M10: 4,534,611 km (0.113 R)
• M11: 5,265,097 km (0.102 R)
• M12: 5,841,498 km (0.106 R)
• M13: 7,022,722 km (0.074 R)
• M14: 7,349,743 km (0.114 R)
• M15: 7,894,130 km (0.108 R)
• M16: 9,255,620 km (0.064 R)
• M17: 10,053,575 km (0.058 R)
• M18: 10,427,420 km (0.084 R)
• M19: 11,424,640 km (0.112 R)
• M20: 12,964,750 km (0.059 R)
• M21: 13,308,376 km (0.034 R)
• M22: 16,623,315 km (0.117 R)
• M23: 17,620,236 km (0.099 R)
• M24: 19,927,035 km (0.067 R)
• M25: 24,157,663 km (0.046 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 867.6

Radius: 10.4

Gravity: 8.02 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 5.08 AU - 5.22 AU

Year: 7546 Days

Day: 13.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 107.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 42,986,014 km

• M1: 129,402 km (0.116 R)
• M2: 509,530 km (0.054 R)
• M3: 917,933 km (0.089 R)
• M4: 1,560,156 km (0.093 R)
• M5: 2,128,927 km (0.096 R)
• M6: 2,462,381 km (0.044 R)
• M7: 3,584,515 km (0.089 R)
• M8: 3,931,432 km (0.092 R)
• M9: 5,949,208 km (0.117 R)
• M10: 10,999,333 km (0.118 R)
• M11: 12,227,831 km (0.043 R)
• M12: 13,844,086 km (0.05 R)
• M13: 16,125,454 km (0.103 R)
• M14: 17,779,109 km (0.118 R)
• M15: 20,702,700 km (0.1 R)
• M16: 24,194,015 km (0.12 R)
• M17: 24,900,865 km (0.064 R)
• M18: 26,170,951 km (0.085 R)
• M19: 27,579,265 km (0.115 R)
• M20: 27,963,133 km (0.086 R)
• M21: 29,634,740 km (0.11 R)
• M22: 31,580,559 km (0.105 R)
• M23: 32,318,526 km (0.119 R)
• M24: 35,160,436 km (0.08 R)
• M25: 36,873,631 km (0.065 R)
• M26: 38,881,683 km (0.094 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 369 - 18,224 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit