🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 514.6

Radius: 13.8

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.49 AU - 0.53 AU

Year: 251 Days

Day: 7.5 Hours

Environment

Temp: -136 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 33,284,231 km

• M1: 171,589 km (0.101 R)
• M2: 617,540 km (0.041 R)
• M3: 1,093,860 km (0.058 R)
• M4: 1,694,944 km (0.12 R)
• M5: 2,286,304 km (0.1 R)
• M6: 2,995,398 km (0.053 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 149.7

Radius: 15

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.67 AU - 0.89 AU

Year: 476 Days

Day: 13.1 Hours

Environment

Temp: -164 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 33,284,231 km

• M1: 186,997 km (0.087 R)
• M2: 964,757 km (0.106 R)
• M3: 1,929,364 km (0.12 R)
• M4: 2,650,276 km (0.051 R)
• M5: 3,414,272 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 528.8

Radius: 10.5

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.02 AU - 1.04 AU

Year: 722 Days

Day: 7.8 Hours

Environment

Temp: -167 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 33,284,231 km

• M1: 130,749 km (0.116 R)
• M2: 624,422 km (0.05 R)
• M3: 1,323,193 km (0.079 R)
• M4: 2,131,171 km (0.097 R)
• M5: 2,506,662 km (0.071 R)
• M6: 4,052,606 km (0.11 R)
• M7: 4,795,809 km (0.116 R)
• M8: 6,058,863 km (0.076 R)
• M9: 7,202,090 km (0.064 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236.4

Radius: 13.8

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 1.36 AU - 1.54 AU

Year: 1205 Days

Day: 10 Hours

Environment

Temp: -197 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 33,284,231 km

• M1: 173,234 km (0.116 R)
• M2: 670,348 km (0.077 R)
• M3: 1,139,936 km (0.116 R)
• M4: 2,719,390 km (0.057 R)
• M5: 3,641,960 km (0.067 R)
• M6: 5,424,120 km (0.079 R)
• M7: 7,547,512 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 712.6

Radius: 11.3

Gravity: 5.58 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 1.52 AU - 1.74 AU

Year: 1436 Days

Day: 14.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 33,284,231 km

• M1: 194,477 km (0.089 R)
• M2: 863,778 km (0.112 R)
• M3: 1,263,354 km (0.033 R)
• M4: 1,739,225 km (0.086 R)
• M5: 2,239,181 km (0.088 R)
• M6: 3,343,064 km (0.103 R)
• M7: 4,194,276 km (0.096 R)
• M8: 4,661,470 km (0.063 R)
• M9: 5,546,939 km (0.117 R)
• M10: 6,468,014 km (0.112 R)
• M11: 6,863,850 km (0.1 R)
• M12: 7,328,500 km (0.115 R)
• M13: 8,064,971 km (0.058 R)
• M14: 8,612,349 km (0.08 R)
• M15: 11,334,731 km (0.072 R)
• M16: 11,693,018 km (0.104 R)
• M17: 12,470,329 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 320

Radius: 11.8

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 1.9 AU - 1.94 AU

Year: 1836 Days

Day: 5.5 Hours

Environment

Temp: -198 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 33,284,231 km

• M1: 146,756 km (0.109 R)
• M2: 532,120 km (0.073 R)
• M3: 906,413 km (0.081 R)
• M4: 1,517,670 km (0.092 R)
• M5: 2,559,769 km (0.113 R)
• M6: 3,482,190 km (0.1 R)
• M7: 3,862,467 km (0.116 R)
• M8: 8,799,496 km (0.05 R)
• M9: 10,291,137 km (0.066 R)
• M10: 10,812,934 km (0.091 R)
• M11: 11,838,876 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 805.9

Radius: 10.2

Gravity: 7.75 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 3.24 AU - 4.06 AU

Year: 4813 Days

Day: 6.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 33,284,231 km

• M1: 135,685 km (0.106 R)
• M2: 513,420 km (0.115 R)
• M3: 987,944 km (0.078 R)
• M4: 1,476,830 km (0.085 R)
• M5: 2,078,214 km (0.119 R)
• M6: 2,891,278 km (0.068 R)
• M7: 3,340,371 km (0.082 R)
• M8: 4,504,093 km (0.117 R)
• M9: 5,164,866 km (0.119 R)
• M10: 7,117,867 km (0.043 R)
• M11: 10,162,782 km (0.12 R)
• M12: 10,517,478 km (0.119 R)
• M13: 12,925,256 km (0.08 R)
• M14: 14,478,830 km (0.115 R)
• M15: 16,033,750 km (0.115 R)
• M16: 16,759,449 km (0.119 R)
• M17: 17,633,550 km (0.083 R)
• M18: 19,540,623 km (0.064 R)
• M19: 20,089,947 km (0.084 R)
• M20: 23,069,039 km (0.108 R)
• M21: 23,605,497 km (0.119 R)
• M22: 24,783,131 km (0.065 R)
• M23: 25,508,232 km (0.12 R)
• M24: 25,835,103 km (0.112 R)
• M25: 28,814,943 km (0.111 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 312.6

Radius: 14.9

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 4.8 AU - 5.92 AU

Year: 8566 Days

Day: 11.1 Hours

Environment

Temp: -232 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 33,284,231 km

• M1: 185,352 km (0.116 R)
• M2: 815,308 km (0.111 R)
• M3: 1,556,267 km (0.09 R)
• M4: 3,024,121 km (0.092 R)
• M5: 4,103,320 km (0.047 R)
• M6: 5,112,956 km (0.118 R)
• M7: 7,157,361 km (0.099 R)
• M8: 8,700,313 km (0.089 R)
• M9: 9,787,889 km (0.08 R)
• M10: 10,410,067 km (0.081 R)
• M11: 12,850,906 km (0.078 R)
• M12: 15,061,813 km (0.11 R)
• M13: 16,941,959 km (0.093 R)
• M14: 18,501,816 km (0.106 R)
• M15: 19,042,463 km (0.12 R)
• M16: 20,155,620 km (0.074 R)
• M17: 21,981,014 km (0.092 R)
• M18: 23,440,490 km (0.085 R)
• M19: 24,718,804 km (0.072 R)
• M20: 30,114,351 km (0.086 R)
• M21: 32,301,172 km (0.118 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 367 - 18,422 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit