🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.8

Radius: 11.3

Gravity: 4.97 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.56 AU - 0.93 AU

Year: 439 Days

Day: 12.3 Hours

Environment

Temp: -166 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 37,376,397 km

• M1: 140,622 km (0.1 R)
• M2: 503,995 km (0.05 R)
• M3: 1,116,599 km (0.083 R)
• M4: 1,580,801 km (0.086 R)
• M5: 2,088,237 km (0.117 R)
• M6: 3,124,950 km (0.11 R)
• M7: 3,554,595 km (0.108 R)
• M8: 4,811,965 km (0.045 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 226.1

Radius: 8.1

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 1.3 AU - 1.48 AU

Year: 1131 Days

Day: 12.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 37,376,397 km

• M1: 103,372 km (0.055 R)
• M2: 1,039,556 km (0.118 R)
• M3: 1,631,664 km (0.112 R)
• M4: 2,086,741 km (0.065 R)
• M5: 2,349,584 km (0.087 R)
• M6: 2,769,057 km (0.065 R)
• M7: 3,149,634 km (0.108 R)
• M8: 5,491,887 km (0.12 R)
• M9: 6,114,065 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 778.4

Radius: 10.7

Gravity: 6.8 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 2.1 AU - 3.04 AU

Year: 2844 Days

Day: 8.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 127.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 37,376,397 km

• M1: 133,142 km (0.118 R)
• M2: 575,353 km (0.099 R)
• M3: 926,908 km (0.11 R)
• M4: 1,498,671 km (0.085 R)
• M5: 2,211,954 km (0.101 R)
• M6: 2,852,682 km (0.085 R)
• M7: 3,406,643 km (0.048 R)
• M8: 4,220,006 km (0.102 R)
• M9: 4,753,472 km (0.109 R)
• M10: 5,207,203 km (0.109 R)
• M11: 6,174,203 km (0.076 R)
• M12: 6,952,561 km (0.105 R)
• M13: 7,602,115 km (0.101 R)
• M14: 9,348,371 km (0.101 R)
• M15: 9,719,972 km (0.058 R)
• M16: 11,016,686 km (0.056 R)
• M17: 14,633,963 km (0.047 R)
• M18: 16,873,293 km (0.115 R)
• M19: 18,506,753 km (0.071 R)
• M20: 19,451,912 km (0.095 R)
• M21: 20,992,620 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 229.4

Radius: 9.8

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 3.47 AU - 4.33 AU

Year: 5316 Days

Day: 6 Hours

Environment

Temp: -222 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 37,376,397 km

• M1: 122,521 km (0.057 R)
• M2: 1,276,519 km (0.077 R)
• M3: 3,374,180 km (0.046 R)
• M4: 3,855,586 km (0.112 R)
• M5: 5,224,107 km (0.072 R)
• M6: 5,896,699 km (0.116 R)
• M7: 7,701,149 km (0.081 R)
• M8: 8,572,257 km (0.096 R)
• M9: 9,249,487 km (0.09 R)
• M10: 9,732,987 km (0.07 R)
• M11: 13,321,391 km (0.039 R)
• M12: 18,279,663 km (0.094 R)
• M13: 19,825,009 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 434.7

Radius: 11.4

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 3.91 AU - 4.07 AU

Year: 5501 Days

Day: 11.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 37,376,397 km

• M1: 141,819 km (0.054 R)
• M2: 522,097 km (0.063 R)
• M3: 907,161 km (0.114 R)
• M4: 1,271,582 km (0.075 R)
• M5: 2,151,217 km (0.12 R)
• M6: 4,145,806 km (0.053 R)
• M7: 6,234,491 km (0.059 R)
• M8: 8,306,272 km (0.102 R)
• M9: 10,757,284 km (0.089 R)
• M10: 12,315,196 km (0.069 R)
• M11: 12,702,654 km (0.085 R)
• M12: 14,981,329 km (0.093 R)
• M13: 19,342,556 km (0.083 R)
• M14: 19,999,291 km (0.034 R)
• M15: 22,415,595 km (0.116 R)
• M16: 24,181,000 km (0.082 R)
• M17: 25,486,391 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 428.6

Radius: 12.5

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 4.71 AU - 5.89 AU

Year: 8422 Days

Day: 13.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 37,376,397 km

• M1: 155,432 km (0.118 R)
• M2: 575,653 km (0.056 R)
• M3: 1,168,210 km (0.075 R)
• M4: 1,798,017 km (0.067 R)
• M5: 2,485,569 km (0.099 R)
• M6: 2,891,577 km (0.111 R)
• M7: 4,544,484 km (0.118 R)
• M8: 5,393,602 km (0.107 R)
• M9: 6,016,677 km (0.11 R)
• M10: 6,480,879 km (0.111 R)
• M11: 7,369,790 km (0.078 R)
• M12: 11,056,479 km (0.1 R)
• M13: 11,552,546 km (0.106 R)
• M14: 13,186,005 km (0.119 R)
• M15: 14,260,267 km (0.096 R)
• M16: 18,379,594 km (0.088 R)
• M17: 19,575,480 km (0.096 R)
• M18: 21,657,134 km (0.106 R)
• M19: 23,151,318 km (0.12 R)
• M20: 25,135,434 km (0.115 R)
• M21: 27,772,097 km (0.12 R)
• M22: 28,597,877 km (0.117 R)
• M23: 29,251,320 km (0.11 R)
• M24: 30,298,206 km (0.067 R)
• M25: 31,666,728 km (0.106 R)
• M26: 32,466,927 km (0.065 R)
• M27: 33,486,137 km (0.089 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 102.1

Radius: 3.8

Gravity: 7.07 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 6.75 AU - 10.73 AU

Year: 17835 Days

Day: 15.8 Hours

Environment

Temp: -243 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 37,376,397 km

• M1: 61,186 km (0.109 R)
• M2: 183,557 km (0.087 R)
• M3: 651,798 km (0.055 R)
• M4: 1,376,600 km (0.064 R)
• M5: 1,675,347 km (0.072 R)
• M6: 3,336,781 km (0.082 R)
• M7: 3,494,457 km (0.06 R)
• M8: 3,947,738 km (0.074 R)
• M9: 4,253,516 km (0.096 R)
• M10: 4,685,405 km (0.111 R)
• M11: 6,638,106 km (0.035 R)
• M12: 6,923,988 km (0.078 R)
• M13: 14,568,888 km (0.086 R)
• M14: 21,391,598 km (0.098 R)
• M15: 22,251,486 km (0.096 R)
• M16: 24,543,924 km (0.114 R)
• M17: 36,708,475 km (0.092 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 435 - 11,939 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit