🌌 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 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.69

Radius: 1.23

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.47 AU - 0.59 AU

Year: 253 Days

Day: 33.5 Hours

Environment

Temp: -121 °C

Axial Tilt: 31.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 49,927,755 km

• M1: 32,164 km (0.101 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.43

Radius: 1.15

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.46 AU - 0.66 AU

Year: 275 Days

Day: 24.5 Hours

Environment

Temp: -114 °C

Axial Tilt: 6.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.8

Radius: 11.7

Gravity: 3.07 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.86 AU - 0.94 AU

Year: 560 Days

Day: 8.5 Hours

Environment

Temp: -148 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 49,927,755 km

• M1: 145,708 km (0.105 R)
• M2: 757,414 km (0.092 R)
• M3: 1,124,378 km (0.107 R)
• M4: 1,707,061 km (0.111 R)
• M5: 2,150,170 km (0.115 R)
• M6: 2,670,023 km (0.086 R)
• M7: 3,192,568 km (0.046 R)
• M8: 3,706,736 km (0.096 R)
• M9: 4,766,338 km (0.094 R)
• M10: 5,214,234 km (0.114 R)
• M11: 5,740,968 km (0.067 R)

Asteroid Belt

Center: 1.36 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 323.2

Radius: 10.2

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 1.37 AU - 2.27 AU

Year: 1611 Days

Day: 12 Hours

Environment

Temp: -184 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 49,927,755 km

• M1: 126,859 km (0.094 R)
• M2: 461,659 km (0.105 R)
• M3: 820,544 km (0.106 R)
• M4: 1,334,563 km (0.112 R)
• M5: 1,865,485 km (0.116 R)
• M6: 2,346,891 km (0.11 R)
• M7: 2,949,322 km (0.067 R)
• M8: 3,440,751 km (0.047 R)
• M9: 3,872,341 km (0.038 R)
• M10: 5,328,975 km (0.073 R)
• M11: 7,696,062 km (0.11 R)
• M12: 8,301,635 km (0.116 R)
• M13: 8,769,577 km (0.091 R)
• M14: 9,167,956 km (0.099 R)
• M15: 10,341,850 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 154.9

Radius: 8.3

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.97 AU - 2.83 AU

Year: 2439 Days

Day: 8.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 49,927,755 km

• M1: 103,372 km (0.116 R)
• M2: 367,562 km (0.109 R)
• M3: 804,687 km (0.116 R)
• M4: 1,188,555 km (0.047 R)
• M5: 1,592,918 km (0.101 R)
• M6: 1,872,217 km (0.078 R)
• M7: 2,341,805 km (0.068 R)
• M8: 3,306,861 km (0.05 R)
• M9: 4,625,566 km (0.102 R)
• M10: 5,672,901 km (0.062 R)
• M11: 5,996,331 km (0.112 R)
• M12: 7,114,576 km (0.086 R)
• M13: 7,933,624 km (0.091 R)
• M14: 8,366,111 km (0.077 R)
• M15: 8,728,886 km (0.107 R)
• M16: 11,097,768 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.4

Radius: 15

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 2.3 AU - 2.64 AU

Year: 2547 Days

Day: 9.4 Hours

Environment

Temp: -197 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 49,927,755 km

• M1: 186,698 km (0.074 R)
• M2: 672,891 km (0.062 R)
• M3: 1,178,981 km (0.041 R)
• M4: 1,781,262 km (0.105 R)
• M5: 2,327,892 km (0.111 R)
• M6: 2,854,327 km (0.1 R)
• M7: 3,427,586 km (0.114 R)
• M8: 4,325,024 km (0.085 R)
• M9: 4,999,860 km (0.068 R)
• M10: 5,626,974 km (0.086 R)
• M11: 6,106,735 km (0.093 R)
• M12: 6,718,740 km (0.12 R)
• M13: 8,006,777 km (0.103 R)
• M14: 8,836,297 km (0.065 R)
• M15: 9,688,706 km (0.082 R)
• M16: 10,310,435 km (0.106 R)
• M17: 11,557,782 km (0.095 R)
• M18: 12,457,164 km (0.074 R)
• M19: 13,318,698 km (0.089 R)
• M20: 14,842,652 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 598.2

Radius: 14.7

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 3.58 AU - 4.58 AU

Year: 5406 Days

Day: 5.3 Hours

Environment

Temp: -215 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 49,927,755 km

• M1: 182,958 km (0.074 R)
• M2: 726,298 km (0.04 R)
• M3: 1,423,873 km (0.106 R)
• M4: 2,281,068 km (0.067 R)
• M5: 4,506,337 km (0.082 R)
• M6: 5,102,185 km (0.08 R)
• M7: 6,110,175 km (0.03 R)
• M8: 8,482,648 km (0.072 R)
• M9: 11,604,905 km (0.092 R)
• M10: 12,281,387 km (0.114 R)
• M11: 12,831,309 km (0.056 R)
• M12: 16,007,571 km (0.085 R)
• M13: 23,487,314 km (0.106 R)
• M14: 24,649,840 km (0.097 R)
• M15: 26,094,955 km (0.092 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 517.4

Radius: 15

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 4.46 AU - 6.72 AU

Year: 8670 Days

Day: 7.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 49,927,755 km

• M1: 186,549 km (0.065 R)
• M2: 774,618 km (0.066 R)
• M3: 1,632,262 km (0.079 R)
• M4: 2,171,413 km (0.076 R)
• M5: 2,929,276 km (0.11 R)
• M6: 3,597,829 km (0.116 R)
• M7: 4,314,253 km (0.117 R)
• M8: 5,334,959 km (0.076 R)
• M9: 7,502,632 km (0.065 R)
• M10: 8,341,278 km (0.043 R)
• M11: 9,153,445 km (0.109 R)
• M12: 10,688,768 km (0.061 R)
• M13: 14,147,321 km (0.109 R)
• M14: 14,626,633 km (0.073 R)
• M15: 17,803,493 km (0.12 R)
• M16: 18,575,418 km (0.116 R)
• M17: 20,413,078 km (0.11 R)
• M18: 24,705,340 km (0.106 R)
• M19: 29,371,298 km (0.062 R)
• M20: 30,152,947 km (0.062 R)
• M21: 31,250,397 km (0.116 R)
• M22: 36,241,580 km (0.079 R)
• M23: 36,914,771 km (0.085 R)
• M24: 39,691,457 km (0.076 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 502.6

Radius: 5.8

Gravity: 14.94 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 6.94 AU - 7.26 AU

Year: 12411 Days

Day: 15.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 162.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 49,927,755 km

• M1: 72,555 km (0.081 R)
• M2: 257,757 km (0.077 R)
• M3: 527,332 km (0.11 R)
• M4: 769,980 km (0.116 R)
• M5: 1,108,969 km (0.073 R)
• M6: 1,431,801 km (0.106 R)
• M7: 1,675,347 km (0.09 R)
• M8: 2,119,353 km (0.115 R)
• M9: 3,359,519 km (0.059 R)
• M10: 3,845,563 km (0.031 R)
• M11: 4,377,234 km (0.081 R)
• M12: 6,045,998 km (0.105 R)
• M13: 9,500,811 km (0.045 R)
• M14: 11,112,429 km (0.098 R)
• M15: 11,444,088 km (0.085 R)
• M16: 13,700,622 km (0.11 R)
• M17: 14,799,867 km (0.06 R)
• M18: 16,953,627 km (0.107 R)
• M19: 24,373,981 km (0.092 R)
• M20: 29,097,235 km (0.113 R)
• M21: 34,395,991 km (0.105 R)
• M22: 35,100,448 km (0.098 R)
• M23: 36,295,884 km (0.091 R)
• M24: 42,817,155 km (0.113 R)
• M25: 44,181,188 km (0.084 R)
• M26: 46,709,093 km (0.101 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 379 - 18,341 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit