🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.82

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.52 AU - 0.56 AU

Year: 139 Days

Day: 26.5 Hours

Environment

Temp: 257 °C

Axial Tilt: 1.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.14

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.63 AU - 0.99 AU

Year: 255 Days

Day: 26 Hours

Environment

Temp: 200 °C

Axial Tilt: 34.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 3.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.58

Radius: 0.8

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 3.36 AU - 4.44 AU

Year: 2694 Days

Day: 38 Hours

Environment

Temp: -103 °C

Axial Tilt: 27.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 4.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.84

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 3.88 AU - 4.68 AU

Year: 3098 Days

Day: 25.8 Hours

Environment

Temp: -113 °C

Axial Tilt: 15 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 103,923,558 km

• M1: 36,352 km (0.109 R)

Asteroid Belt

Center: 5.25 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 6.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 657.4

Radius: 12.2

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 5.38 AU - 7.04 AU

Year: 5414 Days

Day: 7.7 Hours

Environment

Temp: -146 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 103,923,558 km

• M1: 151,842 km (0.059 R)
• M2: 552,166 km (0.064 R)
• M3: 995,574 km (0.047 R)
• M4: 1,671,607 km (0.099 R)
• M5: 2,197,443 km (0.106 R)
• M6: 2,924,489 km (0.104 R)
• M7: 3,565,216 km (0.103 R)
• M8: 4,201,007 km (0.098 R)
• M9: 6,377,058 km (0.087 R)
• M10: 6,835,576 km (0.111 R)
• M11: 7,636,822 km (0.111 R)
• M12: 9,426,311 km (0.047 R)
• M13: 11,150,277 km (0.082 R)
• M14: 12,765,785 km (0.075 R)
• M15: 13,496,271 km (0.114 R)
• M16: 14,644,136 km (0.111 R)
• M17: 15,098,165 km (0.097 R)
• M18: 16,214,315 km (0.097 R)
• M19: 17,384,769 km (0.069 R)
• M20: 18,676,696 km (0.07 R)
• M21: 20,310,305 km (0.112 R)
• M22: 20,946,843 km (0.065 R)
• M23: 24,252,358 km (0.07 R)
• M24: 25,946,255 km (0.077 R)
• M25: 28,413,423 km (0.057 R)
• M26: 30,570,474 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.3

Radius: 13.4

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 6.75 AU - 9.45 AU

Year: 8065 Days

Day: 12.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 103,923,558 km

• M1: 166,652 km (0.116 R)
• M2: 857,944 km (0.066 R)
• M3: 1,324,390 km (0.096 R)
• M4: 1,833,472 km (0.028 R)
• M5: 2,935,409 km (0.094 R)
• M6: 4,765,291 km (0.116 R)
• M7: 7,863,762 km (0.093 R)
• M8: 8,466,491 km (0.106 R)
• M9: 9,764,403 km (0.025 R)
• M10: 11,116,767 km (0.08 R)
• M11: 15,970,321 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 12.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 275.4

Radius: 8.2

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 11.57 AU - 13.49 AU

Year: 15517 Days

Day: 14 Hours

Environment

Temp: -179 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 103,923,558 km

• M1: 106,065 km (0.078 R)
• M2: 373,396 km (0.118 R)
• M3: 815,009 km (0.042 R)
• M4: 1,197,232 km (0.05 R)
• M5: 1,623,436 km (0.111 R)
• M6: 1,896,751 km (0.058 R)
• M7: 2,218,836 km (0.119 R)
• M8: 3,607,403 km (0.11 R)
• M9: 4,132,342 km (0.086 R)
• M10: 7,845,810 km (0.106 R)
• M11: 9,574,413 km (0.12 R)
• M12: 9,968,305 km (0.104 R)
• M13: 16,822,580 km (0.089 R)
• M14: 17,251,776 km (0.071 R)
• M15: 17,761,905 km (0.057 R)
• M16: 23,253,044 km (0.085 R)
• M17: 32,455,408 km (0.09 R)
• M18: 33,682,409 km (0.083 R)
• M19: 40,924,741 km (0.117 R)
• M20: 43,151,057 km (0.109 R)
• M21: 44,090,681 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 170.6

Radius: 7.1

Gravity: 3.38 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 13.23 AU - 14.81 AU

Year: 18365 Days

Day: 23.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 103,923,558 km

• M1: 88,412 km (0.077 R)
• M2: 460,313 km (0.111 R)
• M3: 881,580 km (0.094 R)
• M4: 1,941,780 km (0.064 R)
• M5: 2,337,766 km (0.098 R)
• M6: 2,684,384 km (0.118 R)
• M7: 3,314,490 km (0.079 R)
• M8: 3,829,406 km (0.099 R)
• M9: 4,956,477 km (0.043 R)
• M10: 5,398,838 km (0.115 R)
• M11: 5,901,636 km (0.107 R)
• M12: 6,846,496 km (0.069 R)
• M13: 8,100,575 km (0.042 R)
• M14: 8,759,404 km (0.069 R)
• M15: 11,108,390 km (0.079 R)
• M16: 12,541,687 km (0.119 R)
• M17: 13,183,761 km (0.057 R)
• M18: 17,503,998 km (0.064 R)
• M19: 18,379,445 km (0.057 R)
• M20: 21,756,916 km (0.028 R)
• M21: 33,434,975 km (0.114 R)
• M22: 34,440,871 km (0.082 R)
• M23: 34,780,607 km (0.114 R)
• M24: 45,226,727 km (0.062 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 903.8

Radius: 7.2

Gravity: 17.43 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 15.32 AU - 21.64 AU

Year: 27793 Days

Day: 17.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 103,923,558 km

• M1: 90,656 km (0.096 R)
• M2: 406,158 km (0.113 R)
• M3: 835,953 km (0.058 R)
• M4: 1,121,535 km (0.042 R)
• M5: 2,595,822 km (0.115 R)
• M6: 2,921,198 km (0.109 R)
• M7: 3,958,360 km (0.091 R)
• M8: 4,774,266 km (0.115 R)
• M9: 5,477,975 km (0.117 R)
• M10: 6,685,230 km (0.09 R)
• M11: 7,245,922 km (0.094 R)
• M12: 7,564,716 km (0.052 R)
• M13: 7,837,432 km (0.093 R)
• M14: 8,695,526 km (0.068 R)
• M15: 9,055,758 km (0.08 R)
• M16: 9,999,870 km (0.086 R)
• M17: 18,032,976 km (0.076 R)
• M18: 20,984,093 km (0.106 R)
• M19: 24,836,089 km (0.119 R)
• M20: 26,675,993 km (0.11 R)
• M21: 29,670,793 km (0.095 R)
• M22: 33,027,171 km (0.116 R)
• M23: 48,235,739 km (0.1 R)
• M24: 50,510,075 km (0.083 R)
• M25: 53,053,389 km (0.093 R)
• M26: 54,457,664 km (0.118 R)
• M27: 55,067,126 km (0.107 R)
• M28: 60,106,629 km (0.081 R)
• M29: 62,072,944 km (0.083 R)
• M30: 70,368,146 km (0.113 R)
• M31: 80,155,437 km (0.097 R)
• M32: 89,960,231 km (0.081 R)
• M33: 90,243,569 km (0.066 R)
• M34: 92,819,196 km (0.107 R)
• M35: 96,625,564 km (0.069 R)
• M36: 100,230,274 km (0.053 R)
• M37: 102,682,482 km (0.037 R)

Kuiper Belt

Range: 31.4 - 58.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 408 - 14,668 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit