🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.28

Radius: 1.1

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.53 AU - 0.73 AU

Year: 323 Days

Day: 20.6 Hours

Environment

Temp: -134 °C

Axial Tilt: 19.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 42,443,259 km

• M1: 259,702 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 238.8

Radius: 10.4

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.79 AU - 0.91 AU

Year: 506 Days

Day: 13 Hours

Environment

Temp: -146 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 42,443,259 km

• M1: 129,402 km (0.076 R)
• M2: 486,043 km (0.114 R)
• M3: 1,224,459 km (0.053 R)
• M4: 2,036,925 km (0.062 R)
• M5: 2,513,244 km (0.111 R)
• M6: 3,165,491 km (0.108 R)
• M7: 3,737,404 km (0.088 R)
• M8: 4,403,114 km (0.045 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 752.2

Radius: 11.7

Gravity: 5.49 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.87 AU - 1.41 AU

Year: 786 Days

Day: 13.3 Hours

Environment

Temp: -174 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 42,443,259 km

• M1: 145,559 km (0.106 R)
• M2: 558,598 km (0.116 R)
• M3: 1,228,348 km (0.102 R)
• M4: 1,730,249 km (0.081 R)
• M5: 2,181,885 km (0.083 R)
• M6: 2,631,427 km (0.042 R)
• M7: 3,078,275 km (0.039 R)
• M8: 3,575,838 km (0.095 R)
• M9: 4,464,150 km (0.114 R)
• M10: 5,250,287 km (0.037 R)
• M11: 5,725,559 km (0.07 R)
• M12: 6,105,837 km (0.101 R)
• M13: 6,481,777 km (0.062 R)
• M14: 7,537,040 km (0.055 R)
• M15: 8,193,176 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 425.8

Radius: 13.2

Gravity: 2.44 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.27 AU - 1.27 AU

Year: 924 Days

Day: 5.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 42,443,259 km

• M1: 164,109 km (0.081 R)
• M2: 586,124 km (0.108 R)
• M3: 1,505,852 km (0.118 R)
• M4: 2,253,243 km (0.111 R)
• M5: 2,822,164 km (0.103 R)
• M6: 3,445,688 km (0.082 R)
• M7: 4,175,127 km (0.108 R)
• M8: 5,750,393 km (0.055 R)
• M9: 8,069,908 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 370.2

Radius: 9.9

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 3.1 AU - 3.5 AU

Year: 3871 Days

Day: 14.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 42,443,259 km

• M1: 123,269 km (0.077 R)
• M2: 506,688 km (0.036 R)
• M3: 1,218,923 km (0.096 R)
• M4: 1,750,594 km (0.094 R)
• M5: 2,090,630 km (0.069 R)
• M6: 2,623,348 km (0.111 R)
• M7: 3,123,005 km (0.073 R)
• M8: 4,825,130 km (0.085 R)
• M9: 6,322,904 km (0.045 R)
• M10: 7,626,350 km (0.062 R)
• M11: 7,946,041 km (0.071 R)
• M12: 9,065,182 km (0.109 R)
• M13: 10,325,095 km (0.085 R)
• M14: 11,037,480 km (0.07 R)
• M15: 12,037,991 km (0.069 R)
• M16: 12,516,255 km (0.059 R)
• M17: 12,962,057 km (0.077 R)
• M18: 13,932,648 km (0.109 R)
• M19: 14,459,981 km (0.098 R)
• M20: 19,346,894 km (0.054 R)
• M21: 19,762,926 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 981.5

Radius: 15

Gravity: 4.36 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 4.38 AU - 4.66 AU

Year: 6205 Days

Day: 10 Hours

Environment

Temp: -222 °C

Axial Tilt: 42.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 42,443,259 km

• M1: 190,588 km (0.116 R)
• M2: 827,725 km (0.09 R)
• M3: 1,386,323 km (0.099 R)
• M4: 2,616,168 km (0.107 R)
• M5: 3,147,689 km (0.102 R)
• M6: 5,315,661 km (0.075 R)
• M7: 6,144,134 km (0.054 R)
• M8: 7,057,429 km (0.096 R)
• M9: 8,019,343 km (0.069 R)
• M10: 8,722,304 km (0.07 R)
• M11: 9,830,375 km (0.09 R)
• M12: 10,490,999 km (0.101 R)
• M13: 11,901,109 km (0.077 R)
• M14: 13,491,634 km (0.1 R)
• M15: 16,234,361 km (0.108 R)
• M16: 17,429,199 km (0.092 R)
• M17: 22,396,148 km (0.105 R)
• M18: 24,554,695 km (0.051 R)
• M19: 26,039,155 km (0.086 R)
• M20: 28,994,461 km (0.058 R)
• M21: 31,758,282 km (0.028 R)
• M22: 37,690,735 km (0.086 R)
• M23: 38,495,272 km (0.087 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 802

Radius: 8.3

Gravity: 11.64 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 4.55 AU - 5.89 AU

Year: 7701 Days

Day: 13.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 42,443,259 km

• M1: 103,223 km (0.085 R)
• M2: 366,964 km (0.026 R)
• M3: 652,696 km (0.067 R)
• M4: 1,212,491 km (0.114 R)
• M5: 1,490,593 km (0.111 R)
• M6: 2,078,662 km (0.059 R)
• M7: 2,915,812 km (0.059 R)
• M8: 3,660,959 km (0.108 R)
• M9: 4,387,855 km (0.037 R)
• M10: 5,084,532 km (0.077 R)
• M11: 5,395,696 km (0.065 R)
• M12: 7,821,126 km (0.087 R)
• M13: 9,432,744 km (0.106 R)
• M14: 10,893,119 km (0.045 R)
• M15: 15,065,852 km (0.099 R)
• M16: 15,840,769 km (0.056 R)
• M17: 16,439,160 km (0.076 R)
• M18: 21,137,431 km (0.034 R)
• M19: 23,023,711 km (0.105 R)
• M20: 26,013,574 km (0.042 R)
• M21: 27,506,261 km (0.088 R)
• M22: 27,888,185 km (0.077 R)
• M23: 35,495,087 km (0.087 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 390 - 16,613 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit