🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707.7

Radius: 10.3

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.62 AU - 0.66 AU

Year: 341 Days

Day: 12.3 Hours

Environment

Temp: -152 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 61,144,090 km

• M1: 128,056 km (0.098 R)
• M2: 499,058 km (0.107 R)
• M3: 827,127 km (0.062 R)
• M4: 1,164,769 km (0.082 R)
• M5: 1,609,972 km (0.117 R)
• M6: 2,046,349 km (0.112 R)
• M7: 2,514,740 km (0.116 R)
• M8: 2,919,851 km (0.111 R)
• M9: 3,562,524 km (0.088 R)
• M10: 4,101,375 km (0.119 R)
• M11: 4,637,684 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 168.8

Radius: 13.2

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.02 AU - 1.38 AU

Year: 877 Days

Day: 13.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 61,144,090 km

• M1: 164,857 km (0.072 R)
• M2: 582,235 km (0.111 R)
• M3: 1,017,714 km (0.083 R)
• M4: 1,505,403 km (0.101 R)
• M5: 2,280,620 km (0.086 R)
• M6: 3,105,203 km (0.118 R)
• M7: 3,844,366 km (0.093 R)
• M8: 5,201,967 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 981.9

Radius: 13

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.16 AU - 1.4 AU

Year: 966 Days

Day: 7.2 Hours

Environment

Temp: -183 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 61,144,090 km

• M1: 161,715 km (0.069 R)
• M2: 646,562 km (0.117 R)
• M3: 1,123,480 km (0.047 R)
• M4: 1,597,406 km (0.045 R)
• M5: 2,205,821 km (0.062 R)
• M6: 2,657,307 km (0.059 R)
• M7: 3,115,226 km (0.058 R)
• M8: 3,766,126 km (0.068 R)
• M9: 5,045,787 km (0.079 R)
• M10: 6,055,423 km (0.087 R)
• M11: 6,903,792 km (0.029 R)
• M12: 7,470,170 km (0.111 R)
• M13: 8,922,615 km (0.068 R)
• M14: 11,142,049 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817.2

Radius: 10.6

Gravity: 7.27 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1 AU - 1.62 AU

Year: 1000 Days

Day: 13.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 61,144,090 km

• M1: 131,796 km (0.098 R)
• M2: 483,052 km (0.114 R)
• M3: 956,529 km (0.069 R)
• M4: 1,492,388 km (0.061 R)
• M5: 1,931,907 km (0.117 R)
• M6: 2,376,661 km (0.096 R)
• M7: 2,968,171 km (0.052 R)
• M8: 3,764,032 km (0.102 R)
• M9: 4,119,925 km (0.059 R)
• M10: 4,862,679 km (0.067 R)
• M11: 5,588,827 km (0.053 R)
• M12: 6,119,301 km (0.103 R)
• M13: 7,305,762 km (0.062 R)
• M14: 7,656,868 km (0.066 R)
• M15: 8,502,096 km (0.101 R)
• M16: 10,409,020 km (0.111 R)
• M17: 10,886,686 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 151.8

Radius: 14.8

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.59 AU - 2.25 AU

Year: 1774 Days

Day: 10.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 61,144,090 km

• M1: 192,233 km (0.063 R)
• M2: 816,206 km (0.115 R)
• M3: 1,292,376 km (0.072 R)
• M4: 2,302,311 km (0.086 R)
• M5: 2,823,211 km (0.089 R)
• M6: 4,249,178 km (0.114 R)
• M7: 5,617,849 km (0.116 R)
• M8: 6,791,893 km (0.1 R)
• M9: 7,286,763 km (0.04 R)
• M10: 7,829,803 km (0.091 R)
• M11: 8,812,811 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.7

Radius: 13.6

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 3.08 AU - 4.1 AU

Year: 4536 Days

Day: 5.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 61,144,090 km

• M1: 169,195 km (0.096 R)
• M2: 690,095 km (0.105 R)
• M3: 1,660,237 km (0.116 R)
• M4: 2,136,407 km (0.071 R)
• M5: 4,962,161 km (0.1 R)
• M6: 8,309,115 km (0.101 R)
• M7: 9,357,796 km (0.052 R)
• M8: 10,846,294 km (0.067 R)
• M9: 14,889,027 km (0.077 R)
• M10: 15,792,449 km (0.095 R)
• M11: 16,316,341 km (0.083 R)
• M12: 17,337,795 km (0.086 R)
• M13: 18,084,139 km (0.043 R)
• M14: 19,112,474 km (0.059 R)
• M15: 23,770,653 km (0.104 R)
• M16: 24,459,401 km (0.039 R)
• M17: 26,037,958 km (0.08 R)
• M18: 27,099,804 km (0.108 R)
• M19: 28,020,728 km (0.076 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 622.4

Radius: 13.9

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 3.42 AU - 4.24 AU

Year: 4998 Days

Day: 14.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 61,144,090 km

• M1: 173,683 km (0.063 R)
• M2: 701,614 km (0.109 R)
• M3: 1,179,878 km (0.112 R)
• M4: 1,964,220 km (0.104 R)
• M5: 2,734,350 km (0.106 R)
• M6: 3,550,855 km (0.05 R)
• M7: 4,475,819 km (0.118 R)
• M8: 5,168,906 km (0.063 R)
• M9: 6,112,419 km (0.077 R)
• M10: 7,650,734 km (0.119 R)
• M11: 8,341,128 km (0.032 R)
• M12: 10,445,073 km (0.105 R)
• M13: 15,966,132 km (0.105 R)
• M14: 17,898,039 km (0.115 R)
• M15: 19,050,840 km (0.092 R)
• M16: 20,595,288 km (0.112 R)
• M17: 26,948,560 km (0.102 R)
• M18: 28,719,949 km (0.07 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 825.3

Radius: 4.6

Gravity: 39 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 5.81 AU - 8.77 AU

Year: 13126 Days

Day: 18.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 61,144,090 km

• M1: 57,296 km (0.098 R)
• M2: 395,986 km (0.099 R)
• M3: 681,418 km (0.066 R)
• M4: 1,082,041 km (0.091 R)
• M5: 1,441,824 km (0.035 R)
• M6: 1,739,823 km (0.107 R)
• M7: 2,058,915 km (0.089 R)
• M8: 2,767,112 km (0.064 R)
• M9: 4,846,522 km (0.049 R)
• M10: 6,770,800 km (0.117 R)
• M11: 7,288,109 km (0.09 R)
• M12: 8,597,090 km (0.066 R)
• M13: 8,846,320 km (0.092 R)
• M14: 11,670,429 km (0.051 R)
• M15: 12,099,775 km (0.072 R)
• M16: 12,476,014 km (0.102 R)
• M17: 12,924,807 km (0.086 R)
• M18: 13,517,664 km (0.101 R)
• M19: 13,991,141 km (0.091 R)
• M20: 14,335,964 km (0.083 R)
• M21: 16,755,859 km (0.053 R)
• M22: 20,037,737 km (0.074 R)
• M23: 20,920,365 km (0.12 R)
• M24: 22,573,870 km (0.081 R)
• M25: 27,512,993 km (0.083 R)
• M26: 27,728,564 km (0.114 R)
• M27: 28,823,620 km (0.119 R)
• M28: 29,607,214 km (0.037 R)
• M29: 30,175,386 km (0.111 R)
• M30: 33,615,539 km (0.107 R)
• M31: 38,372,303 km (0.117 R)
• M32: 43,266,846 km (0.07 R)
• M33: 45,787,719 km (0.103 R)
• M34: 47,469,948 km (0.093 R)
• M35: 49,669,934 km (0.052 R)
• M36: 49,829,555 km (0.099 R)
• M37: 55,637,243 km (0.089 R)
• M38: 57,904,399 km (0.103 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 546 - 18,484 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit