🌌 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: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.5 AU - 0.58 AU

Year: 256 Days

Day: 20.5 Hours

Environment

Temp: -114 °C

Axial Tilt: 33.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.8

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.54 AU - 0.62 AU

Year: 285 Days

Day: 12.8 Hours

Environment

Temp: -126 °C

Axial Tilt: 32.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 64,154,944 km

• M1: 165,006 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 113.6

Radius: 10.9

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.82 AU - 0.88 AU

Year: 506 Days

Day: 13.9 Hours

Environment

Temp: -156 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 64,154,944 km

• M1: 139,276 km (0.045 R)
• M2: 497,862 km (0.072 R)
• M3: 854,952 km (0.104 R)
• M4: 1,386,922 km (0.056 R)
• M5: 2,680,046 km (0.112 R)
• M6: 3,408,737 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 194.6

Radius: 11.7

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 2.42 AU - 2.42 AU

Year: 2431 Days

Day: 11.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 125.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 64,154,944 km

• M1: 150,645 km (0.035 R)
• M2: 550,371 km (0.063 R)
• M3: 975,229 km (0.061 R)
• M4: 1,744,760 km (0.06 R)
• M5: 2,391,322 km (0.098 R)
• M6: 2,791,347 km (0.043 R)
• M7: 3,206,930 km (0.082 R)
• M8: 4,287,325 km (0.102 R)
• M9: 5,406,317 km (0.108 R)
• M10: 5,812,476 km (0.084 R)
• M11: 6,955,104 km (0.103 R)
• M12: 8,158,918 km (0.045 R)
• M13: 8,608,759 km (0.098 R)
• M14: 9,045,286 km (0.096 R)
• M15: 10,122,091 km (0.099 R)
• M16: 10,641,944 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 881

Radius: 14.2

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 3.77 AU - 3.93 AU

Year: 4878 Days

Day: 13 Hours

Environment

Temp: -217 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 64,154,944 km

• M1: 176,825 km (0.073 R)
• M2: 690,693 km (0.113 R)
• M3: 1,495,680 km (0.106 R)
• M4: 2,067,443 km (0.098 R)
• M5: 2,590,736 km (0.11 R)
• M6: 3,242,534 km (0.095 R)
• M7: 3,818,785 km (0.114 R)
• M8: 5,757,723 km (0.1 R)
• M9: 6,379,601 km (0.066 R)
• M10: 6,977,394 km (0.039 R)
• M11: 11,337,125 km (0.046 R)
• M12: 11,869,245 km (0.08 R)
• M13: 12,316,991 km (0.115 R)
• M14: 15,775,245 km (0.103 R)
• M15: 17,248,186 km (0.105 R)
• M16: 17,823,539 km (0.115 R)
• M17: 18,945,374 km (0.091 R)
• M18: 21,402,818 km (0.085 R)
• M19: 22,142,280 km (0.099 R)
• M20: 22,898,796 km (0.098 R)
• M21: 23,829,295 km (0.082 R)
• M22: 26,182,171 km (0.049 R)
• M23: 27,285,604 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 367.2

Radius: 11

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 3.63 AU - 5.63 AU

Year: 6433 Days

Day: 13.4 Hours

Environment

Temp: -216 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 64,154,944 km

• M1: 136,882 km (0.104 R)
• M2: 492,775 km (0.071 R)
• M3: 855,849 km (0.026 R)
• M4: 1,232,238 km (0.107 R)
• M5: 1,684,173 km (0.111 R)
• M6: 2,098,110 km (0.085 R)
• M7: 2,497,536 km (0.074 R)
• M8: 4,315,599 km (0.036 R)
• M9: 4,760,354 km (0.079 R)
• M10: 5,948,011 km (0.102 R)
• M11: 6,437,196 km (0.082 R)
• M12: 7,153,471 km (0.093 R)
• M13: 7,849,999 km (0.105 R)
• M14: 8,552,959 km (0.113 R)
• M15: 9,217,174 km (0.106 R)
• M16: 11,187,378 km (0.045 R)
• M17: 12,417,670 km (0.095 R)
• M18: 13,269,481 km (0.094 R)
• M19: 15,033,838 km (0.029 R)
• M20: 15,484,128 km (0.088 R)
• M21: 16,117,824 km (0.092 R)
• M22: 17,746,945 km (0.108 R)
• M23: 20,358,325 km (0.116 R)
• M24: 22,042,648 km (0.064 R)
• M25: 24,046,511 km (0.118 R)
• M26: 24,430,379 km (0.078 R)
• M27: 27,651,222 km (0.066 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 628.1

Radius: 3.2

Gravity: 61.34 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 7.35 AU - 9.77 AU

Year: 16171 Days

Day: 16.4 Hours

Environment

Temp: -233 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 64,154,944 km

• M1: 40,541 km (0.066 R)
• M2: 153,338 km (0.045 R)
• M3: 333,005 km (0.049 R)
• M4: 515,215 km (0.113 R)
• M5: 704,008 km (0.093 R)
• M6: 871,856 km (0.103 R)
• M7: 1,770,940 km (0.103 R)
• M8: 2,672,566 km (0.119 R)
• M9: 2,908,183 km (0.105 R)
• M10: 5,651,658 km (0.069 R)
• M11: 5,882,338 km (0.114 R)
• M12: 6,569,740 km (0.091 R)
• M13: 7,863,313 km (0.036 R)
• M14: 11,542,373 km (0.097 R)
• M15: 14,880,949 km (0.083 R)
• M16: 18,809,838 km (0.059 R)
• M17: 24,573,844 km (0.095 R)
• M18: 25,706,150 km (0.071 R)
• M19: 25,810,719 km (0.028 R)
• M20: 27,742,776 km (0.113 R)
• M21: 29,310,412 km (0.026 R)
• M22: 30,700,475 km (0.104 R)
• M23: 38,723,708 km (0.039 R)
• M24: 39,414,551 km (0.092 R)
• M25: 41,969,383 km (0.092 R)
• M26: 44,030,992 km (0.072 R)
• M27: 46,624,121 km (0.059 R)
• M28: 60,754,687 km (0.027 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 330 - 15,952 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit