🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.62 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.24 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.95

Radius: 0.98

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.19 AU - 1.29 AU

Year: 497 Days

Day: 41.4 Hours

Environment

Temp: -2 °C

Axial Tilt: 14.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 82,385,491 km

• M1: 36,651 km (0.102 R)
• M2: 162,912 km (0.034 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.44 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.74

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.33 AU - 1.55 AU

Year: 622 Days

Day: 26.4 Hours

Environment

Temp: 3 °C

Axial Tilt: 32 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.26

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 1.31 AU - 1.81 AU

Year: 701 Days

Day: 21.3 Hours

Environment

Temp: -41 °C

Axial Tilt: 30 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 82,385,491 km

• M1: 292,165 km (0.106 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.63

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 2.64 AU - 2.64 AU

Year: 1544 Days

Day: 15 Hours

Environment

Temp: -83 °C

Axial Tilt: 23.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 82,385,491 km

• M1: 69,114 km (0.084 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.85

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 2.22 AU - 3.1 AU

Year: 1561 Days

Day: 42.5 Hours

Environment

Temp: -97 °C

Axial Tilt: 37.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.93 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 9.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 584.3

Radius: 13.7

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 7.86 AU - 10.52 AU

Year: 10026 Days

Day: 10.6 Hours

Environment

Temp: -170 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 82,385,491 km

• M1: 170,392 km (0.089 R)
• M2: 627,563 km (0.085 R)
• M3: 1,495,979 km (0.12 R)
• M4: 1,922,183 km (0.085 R)
• M5: 2,562,761 km (0.096 R)
• M6: 3,009,161 km (0.032 R)
• M7: 4,359,880 km (0.078 R)
• M8: 5,841,348 km (0.062 R)
• M9: 6,403,387 km (0.082 R)
• M10: 9,872,263 km (0.081 R)
• M11: 10,367,132 km (0.074 R)
• M12: 12,119,223 km (0.029 R)
• M13: 12,861,079 km (0.111 R)
• M14: 15,009,454 km (0.12 R)
• M15: 16,823,328 km (0.112 R)
• M16: 18,929,815 km (0.107 R)
• M17: 19,463,581 km (0.108 R)
• M18: 20,007,369 km (0.118 R)
• M19: 21,288,525 km (0.104 R)
• M20: 24,459,850 km (0.111 R)
• M21: 32,261,379 km (0.043 R)
• M22: 33,023,730 km (0.094 R)
• M23: 33,909,649 km (0.1 R)
• M24: 36,544,965 km (0.047 R)
• M25: 39,437,589 km (0.092 R)
• M26: 43,924,777 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31.1

Radius: 11.5

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 9.86 AU - 9.86 AU

Year: 11143 Days

Day: 11.6 Hours

Environment

Temp: -169 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 82,385,491 km

• M1: 146,008 km (0.077 R)
• M2: 583,132 km (0.117 R)
• M3: 1,143,676 km (0.038 R)
• M4: 1,562,699 km (0.095 R)
• M5: 2,085,095 km (0.098 R)
• M6: 3,945,644 km (0.034 R)
• M7: 13,614,902 km (0.117 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 953.6

Radius: 9.1

Gravity: 11.52 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 10.23 AU - 12.13 AU

Year: 13453 Days

Day: 13.3 Hours

Environment

Temp: -187 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 82,385,491 km

• M1: 113,694 km (0.11 R)
• M2: 512,223 km (0.049 R)
• M3: 980,016 km (0.026 R)
• M4: 1,668,615 km (0.103 R)
• M5: 3,026,215 km (0.083 R)
• M6: 3,464,986 km (0.095 R)
• M7: 4,567,971 km (0.097 R)
• M8: 5,111,460 km (0.117 R)
• M9: 5,659,736 km (0.093 R)
• M10: 6,659,798 km (0.119 R)
• M11: 7,633,680 km (0.105 R)
• M12: 9,427,807 km (0.116 R)
• M13: 9,752,136 km (0.093 R)
• M14: 10,595,419 km (0.078 R)
• M15: 10,946,226 km (0.117 R)
• M16: 12,235,011 km (0.06 R)
• M17: 12,817,246 km (0.063 R)
• M18: 15,706,430 km (0.094 R)
• M19: 20,406,346 km (0.088 R)
• M20: 23,516,037 km (0.094 R)
• M21: 25,131,844 km (0.038 R)
• M22: 28,583,067 km (0.079 R)
• M23: 29,492,771 km (0.031 R)
• M24: 31,012,237 km (0.09 R)
• M25: 33,076,837 km (0.114 R)
• M26: 33,701,109 km (0.098 R)
• M27: 36,013,743 km (0.093 R)
• M28: 37,074,840 km (0.097 R)
• M29: 38,156,582 km (0.118 R)
• M30: 46,480,806 km (0.082 R)
• M31: 46,949,646 km (0.066 R)
• M32: 50,980,561 km (0.052 R)
• M33: 56,824,602 km (0.099 R)
• M34: 58,989,432 km (0.074 R)
• M35: 63,867,370 km (0.105 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 806.9

Radius: 5.8

Gravity: 23.99 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 13.63 AU - 16.23 AU

Year: 20762 Days

Day: 19.5 Hours

Environment

Temp: -199 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 82,385,491 km

• M1: 72,106 km (0.119 R)
• M2: 403,017 km (0.11 R)
• M3: 701,464 km (0.12 R)
• M4: 924,964 km (0.089 R)
• M5: 1,253,181 km (0.091 R)
• M6: 1,485,806 km (0.09 R)
• M7: 2,294,532 km (0.068 R)
• M8: 3,166,688 km (0.063 R)
• M9: 3,912,583 km (0.095 R)
• M10: 5,030,378 km (0.065 R)
• M11: 6,571,086 km (0.094 R)
• M12: 10,423,232 km (0.099 R)
• M13: 13,992,338 km (0.1 R)
• M14: 14,918,348 km (0.097 R)
• M15: 16,636,031 km (0.058 R)
• M16: 17,150,049 km (0.082 R)
• M17: 20,459,005 km (0.082 R)
• M18: 23,415,657 km (0.069 R)
• M19: 27,585,847 km (0.109 R)
• M20: 36,063,259 km (0.119 R)
• M21: 37,797,548 km (0.095 R)
• M22: 39,284,550 km (0.083 R)
• M23: 40,655,765 km (0.094 R)
• M24: 42,216,519 km (0.028 R)
• M25: 43,011,781 km (0.103 R)
• M26: 44,631,926 km (0.102 R)
• M27: 48,511,897 km (0.095 R)
• M28: 49,912,582 km (0.069 R)
• M29: 53,531,504 km (0.066 R)
• M30: 55,215,676 km (0.085 R)
• M31: 57,905,147 km (0.099 R)
• M32: 67,571,264 km (0.103 R)

Kuiper Belt

Range: 30.5 - 55.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 494 - 12,331 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit