🌌 Stone's Star System Generator

Asteroid Belt

Center: 1 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.05

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.93 AU - 2.05 AU

Year: 1253 Days

Day: 27.9 Hours

Environment

Temp: -127 °C

Axial Tilt: 46.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 97,403,609 km

• M1: 36,801 km (0.03 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 229.5

Radius: 12.4

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 2.14 AU - 2.72 AU

Year: 1690 Days

Day: 7.4 Hours

Environment

Temp: -138 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 97,403,609 km

• M1: 154,235 km (0.113 R)
• M2: 776,712 km (0.047 R)
• M3: 1,297,762 km (0.08 R)
• M4: 1,895,704 km (0.045 R)
• M5: 2,970,864 km (0.114 R)
• M6: 4,416,728 km (0.068 R)
• M7: 6,052,730 km (0.109 R)
• M8: 7,149,133 km (0.058 R)
• M9: 7,883,060 km (0.077 R)
• M10: 9,703,965 km (0.033 R)

Planet 3 - Gas Giant

Semi-Major Axis: 6.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 784.6

Radius: 12.4

Gravity: 5.1 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 6.1 AU - 7.8 AU

Year: 8176 Days

Day: 7.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 97,403,609 km

• M1: 154,535 km (0.113 R)
• M2: 613,202 km (0.114 R)
• M3: 1,176,438 km (0.111 R)
• M4: 1,856,510 km (0.047 R)
• M5: 2,477,042 km (0.116 R)
• M6: 3,461,396 km (0.103 R)
• M7: 3,978,855 km (0.087 R)
• M8: 4,896,638 km (0.084 R)
• M9: 5,326,582 km (0.051 R)
• M10: 6,770,650 km (0.088 R)
• M11: 7,910,436 km (0.106 R)
• M12: 8,592,004 km (0.041 R)
• M13: 9,266,092 km (0.09 R)
• M14: 10,568,192 km (0.114 R)
• M15: 18,441,378 km (0.103 R)
• M16: 18,885,086 km (0.069 R)
• M17: 20,258,843 km (0.115 R)
• M18: 22,359,197 km (0.115 R)
• M19: 22,948,762 km (0.105 R)
• M20: 27,753,995 km (0.063 R)
• M21: 30,135,444 km (0.082 R)
• M22: 33,409,094 km (0.091 R)
• M23: 40,405,637 km (0.088 R)
• M24: 41,029,310 km (0.108 R)
• M25: 41,533,006 km (0.09 R)
• M26: 42,939,077 km (0.063 R)

Planet 4 - Gas Giant

Semi-Major Axis: 7.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 993.8

Radius: 9.2

Gravity: 11.74 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 6.45 AU - 9.09 AU

Year: 9665 Days

Day: 10.1 Hours

Environment

Temp: -185 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 97,403,609 km

• M1: 115,190 km (0.075 R)
• M2: 494,870 km (0.109 R)
• M3: 846,126 km (0.075 R)
• M4: 1,288,786 km (0.119 R)
• M5: 1,721,871 km (0.102 R)
• M6: 2,502,473 km (0.096 R)
• M7: 2,950,519 km (0.112 R)
• M8: 4,206,243 km (0.107 R)
• M9: 6,227,759 km (0.049 R)
• M10: 7,176,808 km (0.097 R)
• M11: 7,817,087 km (0.027 R)
• M12: 8,588,414 km (0.118 R)
• M13: 8,920,371 km (0.077 R)
• M14: 9,559,603 km (0.093 R)
• M15: 9,864,932 km (0.103 R)
• M16: 12,426,048 km (0.088 R)
• M17: 13,098,490 km (0.114 R)
• M18: 13,666,663 km (0.112 R)
• M19: 17,501,904 km (0.042 R)
• M20: 22,893,112 km (0.034 R)
• M21: 26,012,377 km (0.095 R)
• M22: 30,707,506 km (0.081 R)
• M23: 32,276,040 km (0.094 R)
• M24: 32,619,068 km (0.096 R)
• M25: 34,251,779 km (0.12 R)
• M26: 35,450,806 km (0.111 R)
• M27: 38,699,174 km (0.098 R)
• M28: 43,656,249 km (0.092 R)
• M29: 48,720,137 km (0.085 R)
• M30: 50,389,051 km (0.097 R)
• M31: 52,095,663 km (0.107 R)

Planet 5 - Ice Giant

Semi-Major Axis: 9.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 805.7

Radius: 4.3

Gravity: 43.57 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 7.84 AU - 11.66 AU

Year: 13585 Days

Day: 19.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 97,403,609 km

• M1: 55,950 km (0.077 R)
• M2: 223,649 km (0.064 R)
• M3: 397,332 km (0.116 R)
• M4: 549,623 km (0.103 R)
• M5: 704,756 km (0.083 R)
• M6: 965,355 km (0.107 R)
• M7: 1,207,404 km (0.114 R)
• M8: 1,371,364 km (0.118 R)
• M9: 1,565,841 km (0.113 R)
• M10: 1,882,988 km (0.099 R)
• M11: 2,066,395 km (0.089 R)
• M12: 2,221,678 km (0.05 R)
• M13: 3,962,848 km (0.084 R)
• M14: 4,680,618 km (0.114 R)
• M15: 5,192,991 km (0.052 R)
• M16: 5,517,917 km (0.09 R)
• M17: 5,666,468 km (0.058 R)
• M18: 7,304,266 km (0.11 R)
• M19: 10,483,370 km (0.054 R)
• M20: 11,658,611 km (0.103 R)
• M21: 12,467,935 km (0.106 R)
• M22: 13,853,361 km (0.113 R)
• M23: 14,059,357 km (0.055 R)
• M24: 14,407,173 km (0.071 R)
• M25: 18,787,398 km (0.067 R)
• M26: 19,637,413 km (0.111 R)
• M27: 21,967,251 km (0.092 R)
• M28: 22,624,733 km (0.056 R)
• M29: 23,586,348 km (0.094 R)
• M30: 24,077,328 km (0.116 R)
• M31: 26,634,704 km (0.106 R)
• M32: 27,597,815 km (0.069 R)
• M33: 29,821,139 km (0.062 R)
• M34: 37,334,393 km (0.072 R)
• M35: 44,957,900 km (0.07 R)
• M36: 46,936,482 km (0.04 R)
• M37: 48,025,554 km (0.114 R)
• M38: 48,972,209 km (0.116 R)
• M39: 61,506,865 km (0.094 R)

Asteroid Belt

Center: 13.02 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 16.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 667.8

Radius: 5.7

Gravity: 20.55 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 14.14 AU - 18.44 AU

Year: 29338 Days

Day: 19.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 97,403,609 km

• M1: 87,066 km (0.116 R)
• M2: 469,588 km (0.109 R)
• M3: 815,009 km (0.112 R)
• M4: 1,209,349 km (0.065 R)
• M5: 1,944,473 km (0.096 R)
• M6: 2,324,003 km (0.113 R)
• M7: 3,350,843 km (0.026 R)
• M8: 6,730,259 km (0.095 R)
• M9: 7,230,663 km (0.109 R)
• M10: 8,137,975 km (0.078 R)
• M11: 18,768,549 km (0.115 R)
• M12: 19,061,611 km (0.088 R)
• M13: 27,172,658 km (0.032 R)
• M14: 28,181,097 km (0.093 R)
• M15: 30,946,264 km (0.112 R)
• M16: 43,305,592 km (0.03 R)
• M17: 57,554,639 km (0.105 R)
• M18: 57,760,336 km (0.08 R)
• M19: 58,173,376 km (0.117 R)
• M20: 60,268,345 km (0.033 R)
• M21: 79,886,310 km (0.099 R)
• M22: 87,809,462 km (0.118 R)
• M23: 92,523,590 km (0.109 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 353 - 19,940 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit