🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 249

Radius: 14.3

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.76 AU - 0.84 AU

Year: 494 Days

Day: 5.5 Hours

Environment

Temp: -174 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 33,261,375 km

• M1: 177,872 km (0.092 R)
• M2: 910,453 km (0.091 R)
• M3: 1,545,496 km (0.1 R)
• M4: 2,262,668 km (0.115 R)
• M5: 2,746,019 km (0.059 R)
• M6: 3,246,573 km (0.088 R)
• M7: 3,761,938 km (0.056 R)
• M8: 4,408,799 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 189.5

Radius: 8.9

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.72 AU - 0.98 AU

Year: 541 Days

Day: 8.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 33,261,375 km

• M1: 110,702 km (0.087 R)
• M2: 395,836 km (0.112 R)
• M3: 938,876 km (0.098 R)
• M4: 1,486,554 km (0.081 R)
• M5: 2,146,430 km (0.086 R)
• M6: 2,530,298 km (0.08 R)
• M7: 2,833,533 km (0.087 R)
• M8: 3,244,479 km (0.107 R)
• M9: 3,536,344 km (0.032 R)
• M10: 3,977,059 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 566.3

Radius: 10

Gravity: 5.66 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.86 AU - 0.9 AU

Year: 570 Days

Day: 14 Hours

Environment

Temp: -171 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 33,261,375 km

• M1: 124,465 km (0.119 R)
• M2: 558,598 km (0.069 R)
• M3: 884,123 km (0.057 R)
• M4: 1,212,042 km (0.118 R)
• M5: 1,564,794 km (0.111 R)
• M6: 1,919,640 km (0.107 R)
• M7: 2,385,936 km (0.083 R)
• M8: 2,882,302 km (0.053 R)
• M9: 3,835,241 km (0.086 R)
• M10: 4,267,878 km (0.116 R)
• M11: 5,926,170 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 315.5

Radius: 14.9

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.09 AU - 1.19 AU

Year: 840 Days

Day: 14.8 Hours

Environment

Temp: -171 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 33,261,375 km

• M1: 185,352 km (0.086 R)
• M2: 954,883 km (0.061 R)
• M3: 1,479,523 km (0.114 R)
• M4: 2,618,860 km (0.119 R)
• M5: 3,091,141 km (0.113 R)
• M6: 3,766,126 km (0.086 R)
• M7: 4,645,762 km (0.095 R)
• M8: 5,277,364 km (0.105 R)
• M9: 6,457,990 km (0.058 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 212.4

Radius: 8.2

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.29 AU - 1.39 AU

Year: 1071 Days

Day: 9.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 33,261,375 km

• M1: 102,026 km (0.068 R)
• M2: 398,230 km (0.06 R)
• M3: 708,047 km (0.082 R)
• M4: 1,538,764 km (0.095 R)
• M5: 1,837,810 km (0.091 R)
• M6: 2,157,052 km (0.095 R)
• M7: 2,420,494 km (0.11 R)
• M8: 2,873,625 km (0.106 R)
• M9: 3,169,530 km (0.116 R)
• M10: 3,498,795 km (0.08 R)
• M11: 3,822,974 km (0.074 R)
• M12: 4,123,067 km (0.048 R)
• M13: 4,407,901 km (0.08 R)
• M14: 5,051,322 km (0.068 R)
• M15: 5,343,038 km (0.054 R)
• M16: 6,266,954 km (0.074 R)
• M17: 7,293,644 km (0.03 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 722.3

Radius: 14

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 2.96 AU - 3.84 AU

Year: 4327 Days

Day: 8.9 Hours

Environment

Temp: -215 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 33,261,375 km

• M1: 178,470 km (0.068 R)
• M2: 639,531 km (0.119 R)
• M3: 1,283,699 km (0.118 R)
• M4: 1,819,559 km (0.11 R)
• M5: 2,891,727 km (0.113 R)
• M6: 3,437,460 km (0.107 R)
• M7: 3,984,988 km (0.046 R)
• M8: 5,203,612 km (0.082 R)
• M9: 5,755,928 km (0.104 R)
• M10: 6,286,252 km (0.09 R)
• M11: 7,242,931 km (0.109 R)
• M12: 11,053,637 km (0.068 R)
• M13: 12,254,609 km (0.088 R)
• M14: 14,058,909 km (0.093 R)
• M15: 14,860,753 km (0.053 R)
• M16: 15,580,169 km (0.077 R)
• M17: 17,268,980 km (0.115 R)
• M18: 20,126,898 km (0.079 R)
• M19: 21,985,501 km (0.069 R)
• M20: 23,434,357 km (0.105 R)
• M21: 24,791,808 km (0.12 R)
• M22: 27,170,115 km (0.087 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 418.5

Radius: 12

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 3.7 AU - 4.56 AU

Year: 5793 Days

Day: 11.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 33,261,375 km

• M1: 149,299 km (0.048 R)
• M2: 813,962 km (0.09 R)
• M3: 1,561,951 km (0.088 R)
• M4: 2,030,941 km (0.073 R)
• M5: 2,694,258 km (0.114 R)
• M6: 3,258,690 km (0.105 R)
• M7: 3,770,315 km (0.093 R)
• M8: 4,904,117 km (0.042 R)
• M9: 7,246,820 km (0.111 R)
• M10: 8,232,670 km (0.102 R)
• M11: 9,305,586 km (0.096 R)
• M12: 11,177,205 km (0.116 R)
• M13: 12,297,843 km (0.108 R)
• M14: 13,338,595 km (0.063 R)
• M15: 14,329,980 km (0.031 R)
• M16: 15,425,934 km (0.066 R)
• M17: 19,049,643 km (0.081 R)
• M18: 21,900,679 km (0.12 R)
• M19: 23,952,414 km (0.114 R)
• M20: 26,369,916 km (0.116 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 834.6

Radius: 11.1

Gravity: 6.77 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 3.99 AU - 5.13 AU

Year: 6721 Days

Day: 11.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 33,261,375 km

• M1: 138,827 km (0.059 R)
• M2: 633,248 km (0.085 R)
• M3: 1,102,686 km (0.064 R)
• M4: 1,874,611 km (0.116 R)
• M5: 2,269,101 km (0.112 R)
• M6: 3,360,118 km (0.05 R)
• M7: 4,440,065 km (0.113 R)
• M8: 5,610,369 km (0.088 R)
• M9: 6,722,031 km (0.056 R)
• M10: 7,349,295 km (0.114 R)
• M11: 9,512,480 km (0.078 R)
• M12: 10,447,766 km (0.086 R)
• M13: 11,443,190 km (0.102 R)
• M14: 16,129,343 km (0.114 R)
• M15: 16,984,744 km (0.051 R)
• M16: 17,800,800 km (0.117 R)
• M17: 18,500,769 km (0.041 R)
• M18: 27,271,393 km (0.113 R)
• M19: 30,223,707 km (0.036 R)
• M20: 31,119,199 km (0.092 R)
• M21: 33,699,763 km (0.067 R)
• M22: 34,232,481 km (0.081 R)
• M23: 34,879,043 km (0.064 R)
• M24: 38,698,426 km (0.118 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 484

Radius: 12.2

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 4.58 AU - 4.68 AU

Year: 6877 Days

Day: 8.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 33,261,375 km

• M1: 151,991 km (0.078 R)
• M2: 1,157,289 km (0.07 R)
• M3: 2,587,295 km (0.066 R)
• M4: 5,250,287 km (0.042 R)
• M5: 6,187,069 km (0.074 R)
• M6: 8,669,496 km (0.066 R)
• M7: 11,655,021 km (0.087 R)
• M8: 16,290,759 km (0.118 R)
• M9: 17,167,552 km (0.041 R)
• M10: 20,629,098 km (0.115 R)
• M11: 23,888,536 km (0.073 R)
• M12: 27,042,209 km (0.072 R)
• M13: 29,171,286 km (0.068 R)
• M14: 29,812,761 km (0.083 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 414 - 12,755 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit