🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 956.6

Radius: 11.7

Gravity: 6.99 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.47 AU - 0.71 AU

Year: 307 Days

Day: 13.6 Hours

Environment

Temp: -153 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 75,652,829 km

• M1: 145,708 km (0.047 R)
• M2: 843,732 km (0.086 R)
• M3: 1,393,504 km (0.117 R)
• M4: 2,014,036 km (0.083 R)
• M5: 2,599,413 km (0.101 R)
• M6: 3,164,444 km (0.045 R)
• M7: 4,048,567 km (0.118 R)
• M8: 4,625,865 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 689.3

Radius: 12

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 1.25 AU - 1.43 AU

Year: 1052 Days

Day: 11.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 75,652,829 km

• M1: 149,299 km (0.119 R)
• M2: 840,142 km (0.117 R)
• M3: 1,259,165 km (0.063 R)
• M4: 1,895,854 km (0.093 R)
• M5: 2,533,290 km (0.095 R)
• M6: 3,021,279 km (0.052 R)
• M7: 3,453,616 km (0.031 R)
• M8: 3,927,094 km (0.103 R)
• M9: 5,553,671 km (0.078 R)
• M10: 6,472,801 km (0.107 R)
• M11: 7,590,446 km (0.106 R)
• M12: 8,025,028 km (0.069 R)
• M13: 8,584,823 km (0.103 R)
• M14: 9,170,649 km (0.049 R)
• M15: 9,664,172 km (0.085 R)
• M16: 10,144,830 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 992.8

Radius: 11.4

Gravity: 7.64 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.36 AU - 1.88 AU

Year: 1399 Days

Day: 10.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 75,652,829 km

• M1: 141,819 km (0.097 R)
• M2: 695,630 km (0.109 R)
• M3: 1,284,447 km (0.069 R)
• M4: 2,433,509 km (0.107 R)
• M5: 3,574,492 km (0.1 R)
• M6: 4,190,386 km (0.111 R)
• M7: 4,692,586 km (0.117 R)
• M8: 5,063,738 km (0.035 R)
• M9: 5,454,338 km (0.074 R)
• M10: 6,150,567 km (0.077 R)
• M11: 6,697,945 km (0.045 R)
• M12: 7,386,544 km (0.072 R)
• M13: 7,976,708 km (0.033 R)
• M14: 8,387,504 km (0.082 R)
• M15: 10,072,275 km (0.11 R)
• M16: 10,692,807 km (0.043 R)
• M17: 11,708,427 km (0.113 R)
• M18: 13,351,161 km (0.076 R)
• M19: 13,847,527 km (0.054 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 311.4

Radius: 10.1

Gravity: 3.05 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 1.66 AU - 1.7 AU

Year: 1477 Days

Day: 14.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 75,652,829 km

• M1: 125,812 km (0.037 R)
• M2: 446,550 km (0.064 R)
• M3: 816,505 km (0.084 R)
• M4: 1,855,163 km (0.113 R)
• M5: 3,659,762 km (0.094 R)
• M6: 4,468,788 km (0.112 R)
• M7: 5,353,360 km (0.081 R)
• M8: 6,197,840 km (0.119 R)
• M9: 7,105,001 km (0.091 R)
• M10: 9,069,221 km (0.066 R)
• M11: 9,817,360 km (0.043 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 498.7

Radius: 11.6

Gravity: 3.71 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.73 AU - 2.11 AU

Year: 1804 Days

Day: 12 Hours

Environment

Temp: -208 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 75,652,829 km

• M1: 144,362 km (0.097 R)
• M2: 817,702 km (0.114 R)
• M3: 1,837,211 km (0.099 R)
• M4: 2,374,268 km (0.11 R)
• M5: 4,043,630 km (0.065 R)
• M6: 6,078,161 km (0.061 R)
• M7: 6,486,564 km (0.062 R)
• M8: 8,541,290 km (0.101 R)
• M9: 8,993,226 km (0.059 R)
• M10: 9,429,303 km (0.106 R)
• M11: 9,814,368 km (0.075 R)
• M12: 12,312,204 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 320.9

Radius: 13.8

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.87 AU - 2.71 AU

Year: 2350 Days

Day: 14.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 75,652,829 km

• M1: 209,287 km (0.046 R)
• M2: 648,058 km (0.076 R)
• M3: 1,552,826 km (0.061 R)
• M4: 2,062,655 km (0.118 R)
• M5: 2,711,312 km (0.1 R)
• M6: 3,181,947 km (0.052 R)
• M7: 3,673,974 km (0.107 R)
• M8: 4,107,658 km (0.071 R)
• M9: 5,184,763 km (0.11 R)
• M10: 5,824,443 km (0.104 R)
• M11: 7,753,957 km (0.109 R)
• M12: 10,314,474 km (0.068 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 923.8

Radius: 7.8

Gravity: 15.18 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 8.73 AU - 10.31 AU

Year: 19923 Days

Day: 23.5 Hours

Environment

Temp: -238 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 75,652,829 km

• M1: 97,987 km (0.115 R)
• M2: 508,483 km (0.102 R)
• M3: 1,343,838 km (0.076 R)
• M4: 1,801,009 km (0.118 R)
• M5: 2,972,061 km (0.068 R)
• M6: 3,245,675 km (0.092 R)
• M7: 4,004,436 km (0.081 R)
• M8: 6,039,864 km (0.113 R)
• M9: 6,663,388 km (0.093 R)
• M10: 7,627,547 km (0.05 R)
• M11: 9,301,397 km (0.076 R)
• M12: 10,947,273 km (0.109 R)
• M13: 11,403,846 km (0.074 R)
• M14: 11,737,748 km (0.116 R)
• M15: 12,078,083 km (0.115 R)
• M16: 13,358,192 km (0.117 R)
• M17: 17,650,006 km (0.114 R)
• M18: 19,106,939 km (0.1 R)
• M19: 19,673,466 km (0.114 R)
• M20: 25,512,570 km (0.103 R)
• M21: 27,016,179 km (0.053 R)
• M22: 37,007,072 km (0.114 R)
• M23: 39,688,614 km (0.087 R)
• M24: 41,076,733 km (0.104 R)
• M25: 42,178,671 km (0.063 R)
• M26: 43,786,698 km (0.098 R)
• M27: 44,605,747 km (0.094 R)
• M28: 44,936,358 km (0.086 R)
• M29: 49,736,654 km (0.073 R)
• M30: 50,628,407 km (0.037 R)
• M31: 51,168,456 km (0.109 R)
• M32: 52,811,938 km (0.032 R)
• M33: 53,181,893 km (0.109 R)
• M34: 54,114,187 km (0.027 R)
• M35: 55,247,391 km (0.072 R)
• M36: 62,174,820 km (0.087 R)
• M37: 67,245,739 km (0.088 R)
• M38: 75,124,760 km (0.092 R)
• M39: 77,483,918 km (0.056 R)
• M40: 78,681,898 km (0.226 R)
• M41: 80,379,684 km (0.044 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 553.3

Radius: 8

Gravity: 8.65 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 9.97 AU - 10.41 AU

Year: 22062 Days

Day: 16.2 Hours

Environment

Temp: -232 °C

Axial Tilt: 45.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 75,652,829 km

• M1: 99,931 km (0.12 R)
• M2: 432,787 km (0.088 R)
• M3: 926,160 km (0.078 R)
• M4: 2,372,173 km (0.093 R)
• M5: 2,669,275 km (0.044 R)
• M6: 3,683,548 km (0.107 R)
• M7: 4,755,866 km (0.095 R)
• M8: 5,306,685 km (0.084 R)
• M9: 6,757,336 km (0.115 R)
• M10: 8,351,002 km (0.111 R)
• M11: 10,299,664 km (0.097 R)
• M12: 15,854,532 km (0.106 R)
• M13: 16,665,053 km (0.097 R)
• M14: 17,932,297 km (0.095 R)
• M15: 24,490,219 km (0.118 R)
• M16: 26,348,972 km (0.063 R)
• M17: 26,686,465 km (0.118 R)
• M18: 28,299,579 km (0.068 R)
• M19: 38,928,059 km (0.1 R)
• M20: 49,338,724 km (0.097 R)
• M21: 54,264,982 km (0.077 R)
• M22: 54,628,954 km (0.091 R)
• M23: 54,994,421 km (0.086 R)
• M24: 56,473,047 km (0.094 R)
• M25: 72,084,033 km (0.105 R)
• M26: 72,523,851 km (0.102 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 264 - 13,166 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit