🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.62 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 997.8

Radius: 11.9

Gravity: 7.05 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.19 AU - 1.27 AU

Year: 867 Days

Day: 8.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 62,553,835 km

• M1: 147,952 km (0.113 R)
• M2: 546,182 km (0.062 R)
• M3: 931,396 km (0.097 R)
• M4: 1,421,329 km (0.099 R)
• M5: 1,828,834 km (0.098 R)
• M6: 2,393,117 km (0.043 R)
• M7: 2,823,510 km (0.12 R)
• M8: 3,702,846 km (0.098 R)
• M9: 4,316,647 km (0.109 R)
• M10: 4,829,767 km (0.067 R)
• M11: 5,304,591 km (0.111 R)
• M12: 6,304,204 km (0.093 R)
• M13: 8,164,304 km (0.106 R)
• M14: 9,064,285 km (0.088 R)
• M15: 10,334,819 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 682.9

Radius: 14.1

Gravity: 3.43 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.19 AU - 1.57 AU

Year: 1031 Days

Day: 11 Hours

Environment

Temp: -183 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 62,553,835 km

• M1: 175,329 km (0.08 R)
• M2: 761,453 km (0.041 R)
• M3: 1,564,644 km (0.11 R)
• M4: 2,258,329 km (0.116 R)
• M5: 4,285,530 km (0.076 R)
• M6: 5,495,179 km (0.106 R)
• M7: 6,554,780 km (0.052 R)
• M8: 7,571,597 km (0.101 R)
• M9: 8,994,422 km (0.116 R)
• M10: 9,681,226 km (0.071 R)
• M11: 10,188,812 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704.3

Radius: 10.7

Gravity: 6.15 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 1.16 AU - 1.76 AU

Year: 1122 Days

Day: 5.5 Hours

Environment

Temp: -177 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 62,553,835 km

• M1: 133,142 km (0.09 R)
• M2: 511,176 km (0.119 R)
• M3: 1,086,679 km (0.106 R)
• M4: 1,599,351 km (0.073 R)
• M5: 1,952,851 km (0.112 R)
• M6: 2,558,872 km (0.116 R)
• M7: 2,993,453 km (0.104 R)
• M8: 3,358,921 km (0.088 R)
• M9: 3,738,301 km (0.101 R)
• M10: 4,620,480 km (0.113 R)
• M11: 5,998,426 km (0.078 R)
• M12: 6,490,752 km (0.079 R)
• M13: 7,454,911 km (0.104 R)
• M14: 8,456,917 km (0.089 R)
• M15: 9,636,048 km (0.078 R)
• M16: 10,630,275 km (0.105 R)

Asteroid Belt

Center: 2.4 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 848

Radius: 13.3

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 3.1 AU - 3.56 AU

Year: 3864 Days

Day: 6.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 62,553,835 km

• M1: 182,061 km (0.041 R)
• M2: 659,128 km (0.099 R)
• M3: 1,213,239 km (0.097 R)
• M4: 2,399,101 km (0.098 R)
• M5: 3,019,035 km (0.11 R)
• M6: 3,456,758 km (0.071 R)
• M7: 5,059,849 km (0.087 R)
• M8: 5,515,075 km (0.115 R)
• M9: 6,355,366 km (0.117 R)
• M10: 7,179,651 km (0.067 R)
• M11: 8,585,721 km (0.107 R)
• M12: 10,678,894 km (0.101 R)
• M13: 15,570,146 km (0.116 R)
• M14: 16,830,957 km (0.118 R)
• M15: 18,282,805 km (0.116 R)
• M16: 23,139,350 km (0.054 R)
• M17: 24,703,545 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 699.3

Radius: 12.5

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 4.95 AU - 5.65 AU

Year: 7758 Days

Day: 14.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 62,553,835 km

• M1: 159,920 km (0.097 R)
• M2: 1,318,556 km (0.091 R)
• M3: 1,750,893 km (0.109 R)
• M4: 2,772,946 km (0.057 R)
• M5: 3,566,413 km (0.066 R)
• M6: 9,736,877 km (0.103 R)
• M7: 10,451,506 km (0.07 R)
• M8: 11,720,245 km (0.108 R)
• M9: 13,491,035 km (0.084 R)
• M10: 14,807,646 km (0.084 R)
• M11: 18,760,321 km (0.113 R)
• M12: 19,942,743 km (0.106 R)
• M13: 22,866,932 km (0.045 R)
• M14: 28,676,715 km (0.038 R)
• M15: 35,401,289 km (0.042 R)
• M16: 36,408,232 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300.2

Radius: 11.5

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 4.41 AU - 7.35 AU

Year: 9066 Days

Day: 12.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 62,553,835 km

• M1: 143,464 km (0.067 R)
• M2: 1,154,746 km (0.1 R)
• M3: 1,599,052 km (0.119 R)
• M4: 2,096,165 km (0.083 R)
• M5: 2,768,458 km (0.064 R)
• M6: 9,171,546 km (0.089 R)
• M7: 10,403,036 km (0.11 R)
• M8: 13,084,877 km (0.11 R)
• M9: 18,799,665 km (0.096 R)
• M10: 25,735,023 km (0.059 R)
• M11: 26,502,011 km (0.067 R)
• M12: 30,756,425 km (0.107 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 741.5

Radius: 4.1

Gravity: 44.11 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 4.84 AU - 7.92 AU

Year: 10246 Days

Day: 21.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 62,553,835 km

• M1: 139,575 km (0.101 R)
• M2: 357,240 km (0.092 R)
• M3: 627,862 km (0.114 R)
• M4: 1,207,704 km (0.108 R)
• M5: 1,719,328 km (0.101 R)
• M6: 1,946,418 km (0.062 R)
• M7: 2,230,355 km (0.08 R)
• M8: 3,345,906 km (0.113 R)
• M9: 3,571,051 km (0.106 R)
• M10: 5,305,488 km (0.114 R)
• M11: 6,757,785 km (0.118 R)
• M12: 7,832,346 km (0.081 R)
• M13: 8,826,424 km (0.111 R)
• M14: 11,902,605 km (0.08 R)
• M15: 12,966,844 km (0.064 R)
• M16: 15,487,419 km (0.107 R)
• M17: 15,832,541 km (0.055 R)
• M18: 16,898,426 km (0.083 R)
• M19: 26,118,143 km (0.083 R)
• M20: 26,606,879 km (0.085 R)
• M21: 29,457,167 km (0.081 R)
• M22: 33,069,806 km (0.116 R)
• M23: 35,041,207 km (0.12 R)
• M24: 39,471,548 km (0.063 R)
• M25: 43,847,884 km (0.072 R)
• M26: 44,399,302 km (0.096 R)
• M27: 45,516,050 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 334.8

Radius: 4.2

Gravity: 18.98 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 8.81 AU - 11.99 AU

Year: 21325 Days

Day: 19.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 154.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 62,553,835 km

• M1: 54,902 km (0.093 R)
• M2: 263,143 km (0.047 R)
• M3: 487,689 km (0.105 R)
• M4: 1,255,276 km (0.075 R)
• M5: 1,438,982 km (0.117 R)
• M6: 2,530,598 km (0.06 R)
• M7: 3,563,720 km (0.085 R)
• M8: 3,702,996 km (0.1 R)
• M9: 4,328,465 km (0.102 R)
• M10: 4,551,814 km (0.081 R)
• M11: 5,939,634 km (0.12 R)
• M12: 8,101,622 km (0.078 R)
• M13: 10,564,751 km (0.096 R)
• M14: 12,310,259 km (0.054 R)
• M15: 19,531,797 km (0.064 R)
• M16: 21,582,335 km (0.029 R)
• M17: 25,482,202 km (0.115 R)
• M18: 26,525,647 km (0.112 R)
• M19: 27,272,889 km (0.053 R)
• M20: 29,484,992 km (0.026 R)
• M21: 30,056,007 km (0.12 R)
• M22: 50,813,909 km (0.095 R)
• M23: 57,272,348 km (0.118 R)
• M24: 58,878,281 km (0.101 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 395 - 12,574 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit