🌌 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: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 722.1

Radius: 10.2

Gravity: 6.94 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.56 AU - 0.9 AU

Year: 403 Days

Day: 6.6 Hours

Environment

Temp: -136 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,696,081 km

• M1: 127,158 km (0.12 R)
• M2: 539,151 km (0.105 R)
• M3: 919,429 km (0.093 R)
• M4: 1,367,923 km (0.112 R)
• M5: 1,701,825 km (0.066 R)
• M6: 2,141,344 km (0.074 R)
• M7: 2,491,253 km (0.075 R)
• M8: 3,007,216 km (0.054 R)
• M9: 3,484,434 km (0.104 R)
• M10: 3,985,437 km (0.116 R)
• M11: 4,993,128 km (0.071 R)
• M12: 5,664,523 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 788.5

Radius: 12.9

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.81 AU - 0.99 AU

Year: 551 Days

Day: 7.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 57,696,081 km

• M1: 174,282 km (0.119 R)
• M2: 669,002 km (0.104 R)
• M3: 1,178,382 km (0.118 R)
• M4: 1,751,941 km (0.025 R)
• M5: 2,457,743 km (0.077 R)
• M6: 2,962,935 km (0.07 R)
• M7: 3,722,444 km (0.055 R)
• M8: 4,577,096 km (0.073 R)
• M9: 5,348,124 km (0.054 R)
• M10: 6,755,989 km (0.115 R)
• M11: 7,255,198 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 603.6

Radius: 14

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.03 AU - 1.25 AU

Year: 786 Days

Day: 5.7 Hours

Environment

Temp: -161 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,696,081 km

• M1: 174,132 km (0.087 R)
• M2: 812,466 km (0.102 R)
• M3: 1,256,622 km (0.119 R)
• M4: 1,801,906 km (0.071 R)
• M5: 2,238,882 km (0.081 R)
• M6: 2,759,034 km (0.076 R)
• M7: 3,333,789 km (0.118 R)
• M8: 4,002,940 km (0.068 R)
• M9: 4,810,768 km (0.077 R)
• M10: 5,263,003 km (0.119 R)
• M11: 5,743,960 km (0.078 R)
• M12: 6,624,942 km (0.113 R)
• M13: 7,594,336 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 487.6

Radius: 9.3

Gravity: 5.64 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 3.05 AU - 3.57 AU

Year: 3888 Days

Day: 9.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 57,696,081 km

• M1: 115,639 km (0.049 R)
• M2: 491,728 km (0.037 R)
• M3: 784,940 km (0.114 R)
• M4: 1,165,218 km (0.074 R)
• M5: 1,578,407 km (0.106 R)
• M6: 2,047,995 km (0.074 R)
• M7: 3,071,992 km (0.041 R)
• M8: 3,747,427 km (0.058 R)
• M9: 4,272,515 km (0.12 R)
• M10: 5,264,499 km (0.06 R)
• M11: 6,431,960 km (0.089 R)
• M12: 6,726,519 km (0.11 R)
• M13: 7,567,558 km (0.098 R)
• M14: 7,896,224 km (0.095 R)
• M15: 8,407,251 km (0.104 R)
• M16: 8,795,906 km (0.115 R)
• M17: 9,878,097 km (0.111 R)
• M18: 10,880,403 km (0.066 R)
• M19: 11,384,996 km (0.09 R)
• M20: 12,037,393 km (0.09 R)
• M21: 12,440,709 km (0.074 R)
• M22: 13,039,250 km (0.101 R)
• M23: 16,762,890 km (0.109 R)
• M24: 17,322,685 km (0.078 R)
• M25: 18,776,777 km (0.045 R)
• M26: 22,528,542 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 53

Radius: 10.6

Gravity: 0.47 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 4.71 AU - 6.85 AU

Year: 8972 Days

Day: 5.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,696,081 km

• M1: 132,095 km (0.107 R)
• M2: 631,153 km (0.099 R)
• M3: 1,234,033 km (0.076 R)
• M4: 4,760,653 km (0.09 R)
• M5: 9,120,533 km (0.101 R)
• M6: 14,681,385 km (0.098 R)
• M7: 15,358,017 km (0.114 R)
• M8: 17,566,680 km (0.068 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 879.9

Radius: 5.2

Gravity: 32.54 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 6.73 AU - 7.03 AU

Year: 11652 Days

Day: 21.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 57,696,081 km

• M1: 64,626 km (0.119 R)
• M2: 267,032 km (0.115 R)
• M3: 472,580 km (0.103 R)
• M4: 756,816 km (0.086 R)
• M5: 922,570 km (0.103 R)
• M6: 1,137,093 km (0.104 R)
• M7: 2,043,058 km (0.111 R)
• M8: 2,370,079 km (0.113 R)
• M9: 2,890,231 km (0.084 R)
• M10: 3,379,266 km (0.077 R)
• M11: 4,273,712 km (0.116 R)
• M12: 4,841,286 km (0.098 R)
• M13: 5,041,149 km (0.078 R)
• M14: 7,225,428 km (0.076 R)
• M15: 7,709,526 km (0.034 R)
• M16: 8,404,109 km (0.115 R)
• M17: 10,625,638 km (0.107 R)
• M18: 11,661,902 km (0.047 R)
• M19: 11,840,821 km (0.05 R)
• M20: 12,388,948 km (0.115 R)
• M21: 15,101,755 km (0.045 R)
• M22: 17,243,249 km (0.068 R)
• M23: 17,710,443 km (0.117 R)
• M24: 17,947,107 km (0.117 R)
• M25: 20,691,629 km (0.071 R)
• M26: 21,755,270 km (0.046 R)
• M27: 24,280,782 km (0.113 R)
• M28: 26,477,926 km (0.057 R)
• M29: 28,156,713 km (0.1 R)
• M30: 32,425,638 km (0.114 R)
• M31: 37,364,611 km (0.093 R)
• M32: 37,754,015 km (0.112 R)
• M33: 38,673,144 km (0.112 R)
• M34: 46,870,958 km (0.119 R)
• M35: 48,085,393 km (0.034 R)
• M36: 48,392,218 km (0.117 R)
• M37: 49,320,473 km (0.089 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 317 - 10,499 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit