🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.6

Radius: 10.9

Gravity: 0.64 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.54 AU - 0.54 AU

Year: 274 Days

Day: 5.7 Hours

Environment

Temp: -137 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 28,596,619 km

• M1: 135,984 km (0.045 R)
• M2: 489,634 km (0.12 R)
• M3: 940,671 km (0.118 R)
• M4: 1,290,581 km (0.075 R)
• M5: 1,994,289 km (0.051 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 160.7

Radius: 8.7

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.54 AU - 0.56 AU

Year: 282 Days

Day: 8.7 Hours

Environment

Temp: -141 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 28,596,619 km

• M1: 108,159 km (0.071 R)
• M2: 528,978 km (0.094 R)
• M3: 898,485 km (0.091 R)
• M4: 1,208,003 km (0.075 R)
• M5: 1,525,449 km (0.084 R)
• M6: 1,985,762 km (0.081 R)
• M7: 2,619,459 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 415.1

Radius: 9.6

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.53 AU - 0.65 AU

Year: 313 Days

Day: 14 Hours

Environment

Temp: -146 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 28,596,619 km

• M1: 119,379 km (0.115 R)
• M2: 425,756 km (0.113 R)
• M3: 873,951 km (0.03 R)
• M4: 1,471,145 km (0.098 R)
• M5: 2,105,141 km (0.115 R)
• M6: 2,728,216 km (0.094 R)
• M7: 3,035,042 km (0.094 R)
• M8: 3,396,171 km (0.058 R)
• M9: 3,707,783 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 687.3

Radius: 12.1

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.6 AU - 0.92 AU

Year: 457 Days

Day: 8.3 Hours

Environment

Temp: -156 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 28,596,619 km

• M1: 150,495 km (0.107 R)
• M2: 548,127 km (0.057 R)
• M3: 992,133 km (0.104 R)
• M4: 1,542,952 km (0.116 R)
• M5: 2,366,339 km (0.115 R)
• M6: 2,830,541 km (0.052 R)
• M7: 3,379,266 km (0.075 R)
• M8: 3,762,386 km (0.096 R)
• M9: 4,230,029 km (0.083 R)
• M10: 4,903,669 km (0.098 R)
• M11: 5,397,342 km (0.101 R)
• M12: 5,888,920 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 375.8

Radius: 14.8

Gravity: 1.72 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.94 AU - 1.36 AU

Year: 851 Days

Day: 14.4 Hours

Environment

Temp: -180 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 28,596,619 km

• M1: 184,005 km (0.096 R)
• M2: 683,513 km (0.111 R)
• M3: 1,690,306 km (0.07 R)
• M4: 2,228,260 km (0.076 R)
• M5: 3,566,563 km (0.096 R)
• M6: 4,995,970 km (0.113 R)
• M7: 5,712,395 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 418.5

Radius: 13.4

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.98 AU - 2.28 AU

Year: 2146 Days

Day: 10.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 28,596,619 km

• M1: 166,652 km (0.038 R)
• M2: 670,498 km (0.079 R)
• M3: 1,159,832 km (0.034 R)
• M4: 2,123,691 km (0.12 R)
• M5: 2,963,833 km (0.117 R)
• M6: 4,290,916 km (0.082 R)
• M7: 4,859,687 km (0.103 R)
• M8: 6,006,355 km (0.107 R)
• M9: 7,462,391 km (0.109 R)
• M10: 8,738,610 km (0.088 R)
• M11: 9,987,303 km (0.093 R)
• M12: 10,990,656 km (0.097 R)
• M13: 13,400,678 km (0.091 R)
• M14: 14,023,005 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 782.5

Radius: 9.2

Gravity: 9.25 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 3.97 AU - 4.45 AU

Year: 5963 Days

Day: 10.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 28,596,619 km

• M1: 114,442 km (0.064 R)
• M2: 446,849 km (0.066 R)
• M3: 826,379 km (0.069 R)
• M4: 1,554,771 km (0.086 R)
• M5: 2,311,586 km (0.037 R)
• M6: 2,908,033 km (0.049 R)
• M7: 3,232,361 km (0.087 R)
• M8: 4,126,059 km (0.046 R)
• M9: 5,624,132 km (0.115 R)
• M10: 8,961,660 km (0.112 R)
• M11: 10,240,573 km (0.087 R)
• M12: 11,141,900 km (0.05 R)
• M13: 12,618,281 km (0.109 R)
• M14: 17,625,621 km (0.117 R)
• M15: 18,709,906 km (0.092 R)
• M16: 21,766,939 km (0.091 R)
• M17: 22,934,999 km (0.099 R)
• M18: 26,865,384 km (0.104 R)
• M19: 27,576,423 km (0.068 R)
• M20: 31,909,974 km (0.08 R)
• M21: 32,207,524 km (0.119 R)
• M22: 34,549,927 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 134.5

Radius: 4.6

Gravity: 6.36 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 5.86 AU - 6.34 AU

Year: 10399 Days

Day: 19.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 28,596,619 km

• M1: 58,343 km (0.114 R)
• M2: 265,536 km (0.102 R)
• M3: 427,551 km (0.111 R)
• M4: 683,662 km (0.05 R)
• M5: 827,725 km (0.098 R)
• M6: 974,929 km (0.029 R)
• M7: 1,514,529 km (0.115 R)
• M8: 1,724,265 km (0.074 R)
• M9: 2,126,683 km (0.1 R)
• M10: 2,871,531 km (0.113 R)
• M11: 3,292,948 km (0.108 R)
• M12: 4,452,033 km (0.037 R)
• M13: 5,204,660 km (0.078 R)
• M14: 5,426,364 km (0.095 R)
• M15: 6,099,255 km (0.061 R)
• M16: 6,252,593 km (0.103 R)
• M17: 7,364,703 km (0.108 R)
• M18: 7,573,691 km (0.047 R)
• M19: 10,489,055 km (0.119 R)
• M20: 13,915,594 km (0.082 R)
• M21: 15,563,714 km (0.112 R)
• M22: 18,915,304 km (0.074 R)
• M23: 20,108,796 km (0.119 R)
• M24: 22,063,741 km (0.075 R)
• M25: 24,526,122 km (0.1 R)
• M26: 24,914,628 km (0.075 R)
• M27: 27,665,134 km (0.09 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 440 - 15,410 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit