🌌 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 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 306.2

Radius: 11.1

Gravity: 2.49 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.55 AU - 0.59 AU

Year: 287 Days

Day: 7.5 Hours

Environment

Temp: -154 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 75,578,520 km

• M1: 138,079 km (0.081 R)
• M2: 578,046 km (0.108 R)
• M3: 1,107,772 km (0.057 R)
• M4: 1,474,137 km (0.046 R)
• M5: 2,249,952 km (0.119 R)
• M6: 2,614,522 km (0.037 R)
• M7: 3,028,011 km (0.073 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 182.9

Radius: 9.2

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.62 AU - 0.64 AU

Year: 333 Days

Day: 14.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 75,578,520 km

• M1: 123,269 km (0.08 R)
• M2: 472,729 km (0.065 R)
• M3: 911,350 km (0.099 R)
• M4: 1,304,045 km (0.1 R)
• M5: 1,663,678 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 637.8

Radius: 12.8

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.72 AU - 1.12 AU

Year: 588 Days

Day: 13.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 75,578,520 km

• M1: 159,322 km (0.102 R)
• M2: 629,358 km (0.091 R)
• M3: 1,050,626 km (0.11 R)
• M4: 1,865,336 km (0.096 R)
• M5: 2,503,072 km (0.064 R)
• M6: 2,998,390 km (0.115 R)
• M7: 3,406,344 km (0.056 R)
• M8: 4,102,871 km (0.098 R)
• M9: 4,876,292 km (0.103 R)
• M10: 5,479,321 km (0.071 R)
• M11: 6,037,920 km (0.096 R)
• M12: 6,814,781 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 990.5

Radius: 10.2

Gravity: 9.52 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.83 AU - 1.03 AU

Year: 598 Days

Day: 10.5 Hours

Environment

Temp: -171 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 75,578,520 km

• M1: 126,859 km (0.113 R)
• M2: 462,108 km (0.084 R)
• M3: 963,560 km (0.101 R)
• M4: 1,383,780 km (0.031 R)
• M5: 2,129,226 km (0.095 R)
• M6: 2,494,993 km (0.045 R)
• M7: 5,157,387 km (0.11 R)
• M8: 5,708,356 km (0.105 R)
• M9: 6,057,517 km (0.094 R)
• M10: 6,379,900 km (0.098 R)
• M11: 6,820,317 km (0.108 R)
• M12: 7,461,942 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 844.5

Radius: 9.6

Gravity: 9.16 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.8 AU - 1.18 AU

Year: 657 Days

Day: 7.4 Hours

Environment

Temp: -177 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 75,578,520 km

• M1: 119,379 km (0.087 R)
• M2: 449,392 km (0.057 R)
• M3: 891,155 km (0.116 R)
• M4: 1,265,748 km (0.079 R)
• M5: 2,271,494 km (0.116 R)
• M6: 2,656,110 km (0.092 R)
• M7: 3,855,586 km (0.086 R)
• M8: 4,374,092 km (0.109 R)
• M9: 4,955,878 km (0.114 R)
• M10: 5,256,570 km (0.073 R)
• M11: 6,253,191 km (0.093 R)
• M12: 8,171,036 km (0.055 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 934.9

Radius: 10.2

Gravity: 8.99 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 5.06 AU - 5.22 AU

Year: 7771 Days

Day: 9.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 75,578,520 km

• M1: 127,009 km (0.1 R)
• M2: 591,061 km (0.113 R)
• M3: 1,373,458 km (0.086 R)
• M4: 2,148,824 km (0.08 R)
• M5: 2,764,718 km (0.025 R)
• M6: 3,447,034 km (0.105 R)
• M7: 4,632,597 km (0.113 R)
• M8: 5,529,287 km (0.051 R)
• M9: 6,501,075 km (0.052 R)
• M10: 7,183,391 km (0.106 R)
• M11: 7,501,735 km (0.107 R)
• M12: 12,952,184 km (0.079 R)
• M13: 16,438,861 km (0.099 R)
• M14: 17,133,893 km (0.103 R)
• M15: 18,582,599 km (0.118 R)
• M16: 20,111,339 km (0.11 R)
• M17: 20,506,278 km (0.118 R)
• M18: 23,766,913 km (0.085 R)
• M19: 24,835,790 km (0.107 R)
• M20: 27,648,230 km (0.108 R)
• M21: 29,738,860 km (0.109 R)
• M22: 30,458,575 km (0.118 R)
• M23: 31,189,810 km (0.085 R)
• M24: 34,457,027 km (0.088 R)
• M25: 35,710,209 km (0.112 R)
• M26: 36,406,287 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 590.5

Radius: 5.6

Gravity: 18.83 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 7.12 AU - 7.32 AU

Year: 12937 Days

Day: 19.8 Hours

Environment

Temp: -240 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 75,578,520 km

• M1: 69,713 km (0.096 R)
• M2: 374,743 km (0.103 R)
• M3: 599,738 km (0.046 R)
• M4: 977,173 km (0.097 R)
• M5: 1,776,475 km (0.06 R)
• M6: 3,403,352 km (0.103 R)
• M7: 6,590,833 km (0.063 R)
• M8: 8,446,146 km (0.107 R)
• M9: 15,480,238 km (0.104 R)
• M10: 19,842,063 km (0.085 R)
• M11: 22,981,524 km (0.066 R)
• M12: 27,454,800 km (0.111 R)
• M13: 36,307,702 km (0.063 R)
• M14: 37,691,632 km (0.097 R)
• M15: 39,110,419 km (0.026 R)
• M16: 40,031,642 km (0.072 R)
• M17: 47,480,419 km (0.102 R)
• M18: 52,080,404 km (0.097 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 119.6

Radius: 3.2

Gravity: 11.68 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 7.42 AU - 8.48 AU

Year: 14948 Days

Day: 18.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 75,578,520 km

• M1: 41,289 km (0.104 R)
• M2: 937,979 km (0.096 R)
• M3: 1,783,207 km (0.051 R)
• M4: 2,195,947 km (0.118 R)
• M5: 2,939,299 km (0.072 R)
• M6: 3,040,278 km (0.086 R)
• M7: 3,557,288 km (0.113 R)
• M8: 4,653,242 km (0.12 R)
• M9: 4,958,870 km (0.109 R)
• M10: 6,518,578 km (0.08 R)
• M11: 8,745,940 km (0.083 R)
• M12: 10,235,486 km (0.101 R)
• M13: 12,298,441 km (0.051 R)
• M14: 13,097,593 km (0.11 R)
• M15: 21,600,437 km (0.117 R)
• M16: 21,905,915 km (0.109 R)
• M17: 24,702,648 km (0.113 R)
• M18: 27,818,173 km (0.101 R)
• M19: 28,544,321 km (0.082 R)
• M20: 32,465,281 km (0.056 R)
• M21: 34,087,969 km (0.05 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 979.8

Radius: 6.5

Gravity: 23.19 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 7.12 AU - 9.9 AU

Year: 16555 Days

Day: 17.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 75,578,520 km

• M1: 81,830 km (0.08 R)
• M2: 384,317 km (0.082 R)
• M3: 964,009 km (0.067 R)
• M4: 1,828,535 km (0.117 R)
• M5: 2,554,683 km (0.111 R)
• M6: 4,223,597 km (0.098 R)
• M7: 5,634,454 km (0.088 R)
• M8: 12,101,570 km (0.094 R)
• M9: 13,197,823 km (0.079 R)
• M10: 13,553,717 km (0.092 R)
• M11: 22,283,201 km (0.12 R)
• M12: 24,774,754 km (0.113 R)
• M13: 24,990,474 km (0.108 R)
• M14: 26,874,509 km (0.101 R)
• M15: 42,473,977 km (0.076 R)
• M16: 53,664,047 km (0.073 R)
• M17: 56,599,457 km (0.098 R)
• M18: 57,538,183 km (0.103 R)
• M19: 61,004,067 km (0.04 R)
• M20: 68,560,255 km (0.077 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 445 - 18,230 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit