🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.2

Radius: 1.08

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.55 AU - 0.55 AU

Year: 263 Days

Day: 41 Hours

Environment

Temp: -119 °C

Axial Tilt: 4.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 49,190,251 km

• M1: 38,147 km (0.111 R)
• M2: 442,062 km (0.117 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.85

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.55 AU - 0.71 AU

Year: 323 Days

Day: 41.9 Hours

Environment

Temp: -140 °C

Axial Tilt: 10.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 399.7

Radius: 11.6

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.79 AU - 2.33 AU

Year: 1909 Days

Day: 14.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 49,190,251 km

• M1: 144,212 km (0.097 R)
• M2: 543,190 km (0.071 R)
• M3: 941,569 km (0.084 R)
• M4: 1,642,884 km (0.066 R)
• M5: 2,438,744 km (0.03 R)
• M6: 2,814,684 km (0.116 R)
• M7: 3,274,847 km (0.031 R)
• M8: 4,059,637 km (0.103 R)
• M9: 4,515,911 km (0.083 R)
• M10: 4,965,752 km (0.071 R)
• M11: 5,424,120 km (0.12 R)
• M12: 5,933,201 km (0.097 R)
• M13: 6,449,912 km (0.109 R)
• M14: 7,902,059 km (0.093 R)
• M15: 8,296,848 km (0.05 R)
• M16: 8,883,870 km (0.093 R)
• M17: 9,880,491 km (0.119 R)
• M18: 11,549,255 km (0.103 R)
• M19: 11,911,581 km (0.082 R)
• M20: 12,281,686 km (0.092 R)
• M21: 12,928,398 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 449.9

Radius: 10.8

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 2.81 AU - 4.63 AU

Year: 4633 Days

Day: 10 Hours

Environment

Temp: -211 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 49,190,251 km

• M1: 134,339 km (0.114 R)
• M2: 481,556 km (0.061 R)
• M3: 1,920,537 km (0.099 R)
• M4: 2,335,522 km (0.111 R)
• M5: 2,710,265 km (0.107 R)
• M6: 3,071,244 km (0.119 R)
• M7: 3,483,985 km (0.105 R)
• M8: 3,828,210 km (0.099 R)
• M9: 4,515,013 km (0.098 R)
• M10: 5,547,388 km (0.116 R)
• M11: 6,367,933 km (0.059 R)
• M12: 6,979,638 km (0.037 R)
• M13: 9,127,564 km (0.068 R)
• M14: 9,550,328 km (0.075 R)
• M15: 10,026,348 km (0.117 R)
• M16: 11,112,130 km (0.077 R)
• M17: 11,505,722 km (0.119 R)
• M18: 13,222,657 km (0.111 R)
• M19: 15,210,812 km (0.06 R)
• M20: 15,805,913 km (0.076 R)
• M21: 18,101,492 km (0.088 R)
• M22: 19,203,729 km (0.065 R)
• M23: 24,354,982 km (0.11 R)
• M24: 24,871,244 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 411.9

Radius: 14.2

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 4.66 AU - 7 AU

Year: 9089 Days

Day: 14.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 49,190,251 km

• M1: 180,565 km (0.093 R)
• M2: 752,926 km (0.104 R)
• M3: 1,473,689 km (0.103 R)
• M4: 1,924,876 km (0.065 R)
• M5: 2,366,638 km (0.094 R)
• M6: 3,439,405 km (0.069 R)
• M7: 4,000,247 km (0.056 R)
• M8: 4,759,456 km (0.1 R)
• M9: 5,367,871 km (0.113 R)
• M10: 5,930,209 km (0.111 R)
• M11: 7,587,155 km (0.097 R)
• M12: 9,851,469 km (0.119 R)
• M13: 11,389,035 km (0.092 R)
• M14: 12,535,404 km (0.117 R)
• M15: 14,996,738 km (0.097 R)
• M16: 15,990,068 km (0.043 R)
• M17: 17,969,995 km (0.047 R)
• M18: 19,305,755 km (0.084 R)
• M19: 20,933,978 km (0.086 R)
• M20: 23,627,936 km (0.063 R)
• M21: 25,230,279 km (0.088 R)
• M22: 31,660,594 km (0.083 R)
• M23: 34,449,248 km (0.083 R)
• M24: 35,957,793 km (0.07 R)
• M25: 36,839,523 km (0.112 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 734.4

Radius: 4.7

Gravity: 33.25 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 5.47 AU - 6.99 AU

Year: 10040 Days

Day: 19.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 49,190,251 km

• M1: 58,493 km (0.041 R)
• M2: 304,132 km (0.076 R)
• M3: 463,454 km (0.063 R)
• M4: 781,050 km (0.117 R)
• M5: 942,018 km (0.103 R)
• M6: 1,565,093 km (0.042 R)
• M7: 1,714,092 km (0.1 R)
• M8: 2,058,467 km (0.067 R)
• M9: 3,086,503 km (0.113 R)
• M10: 3,444,641 km (0.094 R)
• M11: 4,840,688 km (0.116 R)
• M12: 5,768,195 km (0.106 R)
• M13: 6,769,453 km (0.066 R)
• M14: 7,208,673 km (0.112 R)
• M15: 7,456,107 km (0.036 R)
• M16: 9,109,463 km (0.099 R)
• M17: 9,644,724 km (0.078 R)
• M18: 10,046,843 km (0.092 R)
• M19: 11,431,222 km (0.106 R)
• M20: 12,461,054 km (0.086 R)
• M21: 12,698,017 km (0.084 R)
• M22: 14,901,743 km (0.114 R)
• M23: 16,410,138 km (0.085 R)
• M24: 16,623,465 km (0.117 R)
• M25: 22,054,616 km (0.087 R)
• M26: 28,151,327 km (0.066 R)
• M27: 30,231,486 km (0.1 R)
• M28: 31,527,602 km (0.048 R)
• M29: 38,316,802 km (0.099 R)
• M30: 44,072,729 km (0.11 R)
• M31: 44,485,021 km (0.041 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 435 - 18,042 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit