🌌 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: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.92

Radius: 1.54

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.44 AU - 0.62 AU

Year: 245 Days

Day: 32.4 Hours

Environment

Temp: -128 °C

Axial Tilt: 24.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733.9

Radius: 9.3

Gravity: 8.49 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.6 AU - 0.78 AU

Year: 364 Days

Day: 5.2 Hours

Environment

Temp: -140 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 28,729,069 km

• M1: 115,639 km (0.113 R)
• M2: 466,147 km (0.116 R)
• M3: 763,248 km (0.077 R)
• M4: 1,087,577 km (0.039 R)
• M5: 1,479,224 km (0.119 R)
• M6: 1,980,077 km (0.095 R)
• M7: 2,888,286 km (0.065 R)
• M8: 3,366,999 km (0.095 R)
• M9: 3,872,490 km (0.075 R)
• M10: 4,223,746 km (0.094 R)
• M11: 4,539,547 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.7

Radius: 11.1

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 2.63 AU - 3.07 AU

Year: 3059 Days

Day: 5.3 Hours

Environment

Temp: -195 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 28,729,069 km

• M1: 141,370 km (0.066 R)
• M2: 541,095 km (0.115 R)
• M3: 1,125,126 km (0.059 R)
• M4: 1,558,660 km (0.058 R)
• M5: 2,366,339 km (0.107 R)
• M6: 2,772,348 km (0.074 R)
• M7: 4,217,762 km (0.077 R)
• M8: 4,909,653 km (0.089 R)
• M9: 5,306,984 km (0.065 R)
• M10: 6,828,096 km (0.092 R)
• M11: 7,235,151 km (0.066 R)
• M12: 7,782,380 km (0.063 R)
• M13: 8,259,448 km (0.098 R)
• M14: 8,857,540 km (0.09 R)
• M15: 9,342,387 km (0.04 R)
• M16: 9,918,339 km (0.1 R)
• M17: 12,333,746 km (0.068 R)
• M18: 12,939,019 km (0.088 R)
• M19: 13,293,716 km (0.089 R)
• M20: 16,114,383 km (0.085 R)
• M21: 16,577,239 km (0.12 R)
• M22: 17,691,743 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 701.5

Radius: 12.8

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 2.81 AU - 3.45 AU

Year: 3521 Days

Day: 11 Hours

Environment

Temp: -194 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 28,729,069 km

• M1: 159,322 km (0.056 R)
• M2: 678,875 km (0.091 R)
• M3: 1,091,466 km (0.105 R)
• M4: 1,567,935 km (0.03 R)
• M5: 2,325,349 km (0.102 R)
• M6: 2,906,238 km (0.096 R)
• M7: 3,543,525 km (0.069 R)
• M8: 5,049,227 km (0.043 R)
• M9: 5,918,092 km (0.05 R)
• M10: 6,822,710 km (0.096 R)
• M11: 10,336,166 km (0.119 R)
• M12: 10,999,632 km (0.057 R)
• M13: 13,991,739 km (0.116 R)
• M14: 14,907,877 km (0.091 R)
• M15: 16,081,622 km (0.114 R)
• M16: 16,803,581 km (0.111 R)
• M17: 19,720,590 km (0.104 R)
• M18: 23,875,820 km (0.07 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 797.7

Radius: 9.7

Gravity: 8.48 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 3.46 AU - 3.98 AU

Year: 4562 Days

Day: 10.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 28,729,069 km

• M1: 120,875 km (0.095 R)
• M2: 547,678 km (0.095 R)
• M3: 1,042,099 km (0.035 R)
• M4: 2,011,343 km (0.102 R)
• M5: 4,186,197 km (0.097 R)
• M6: 4,807,328 km (0.069 R)
• M7: 5,661,831 km (0.066 R)
• M8: 9,072,512 km (0.119 R)
• M9: 9,479,419 km (0.054 R)
• M10: 11,987,128 km (0.086 R)
• M11: 14,518,623 km (0.112 R)
• M12: 15,705,233 km (0.112 R)
• M13: 22,476,033 km (0.07 R)
• M14: 23,525,013 km (0.113 R)
• M15: 24,763,384 km (0.108 R)
• M16: 26,453,990 km (0.112 R)
• M17: 29,617,536 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658.8

Radius: 9.4

Gravity: 7.46 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 4.28 AU - 5.58 AU

Year: 6960 Days

Day: 8.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 28,729,069 km

• M1: 116,986 km (0.112 R)
• M2: 511,326 km (0.089 R)
• M3: 862,282 km (0.113 R)
• M4: 1,365,081 km (0.06 R)
• M5: 2,023,760 km (0.11 R)
• M6: 3,492,362 km (0.075 R)
• M7: 4,011,916 km (0.086 R)
• M8: 4,830,964 km (0.052 R)
• M9: 5,789,138 km (0.09 R)
• M10: 7,012,849 km (0.117 R)
• M11: 8,565,974 km (0.078 R)
• M12: 9,827,084 km (0.046 R)
• M13: 10,912,117 km (0.094 R)
• M14: 12,338,384 km (0.118 R)
• M15: 14,884,839 km (0.061 R)
• M16: 19,656,861 km (0.104 R)
• M17: 21,681,818 km (0.03 R)
• M18: 22,704,768 km (0.11 R)
• M19: 23,595,324 km (0.109 R)
• M20: 25,705,402 km (0.118 R)
• M21: 36,605,552 km (0.053 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.3

Radius: 10.7

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 4.85 AU - 5.79 AU

Year: 7802 Days

Day: 12.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 28,729,069 km

• M1: 134,937 km (0.084 R)
• M2: 574,605 km (0.113 R)
• M3: 1,266,944 km (0.09 R)
• M4: 2,359,458 km (0.058 R)
• M5: 2,738,838 km (0.086 R)
• M6: 3,236,700 km (0.1 R)
• M7: 3,622,512 km (0.078 R)
• M8: 4,130,696 km (0.048 R)
• M9: 5,428,907 km (0.08 R)
• M10: 6,156,700 km (0.106 R)
• M11: 6,687,922 km (0.115 R)
• M12: 12,100,822 km (0.063 R)
• M13: 12,686,049 km (0.094 R)
• M14: 15,330,191 km (0.112 R)
• M15: 17,570,868 km (0.068 R)
• M16: 19,028,700 km (0.117 R)
• M17: 20,021,730 km (0.117 R)
• M18: 21,611,208 km (0.054 R)
• M19: 25,670,845 km (0.057 R)
• M20: 28,132,777 km (0.11 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 167 - 14,053 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit