🌌 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: 858.6

Radius: 12.3

Gravity: 5.68 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.73 AU - 0.87 AU

Year: 469 Days

Day: 6.6 Hours

Environment

Temp: -148 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 88,156,348 km

• M1: 153,039 km (0.068 R)
• M2: 650,452 km (0.034 R)
• M3: 1,193,641 km (0.105 R)
• M4: 1,681,630 km (0.103 R)
• M5: 2,321,310 km (0.101 R)
• M6: 2,805,409 km (0.072 R)
• M7: 3,295,791 km (0.11 R)
• M8: 3,723,790 km (0.073 R)
• M9: 4,928,053 km (0.052 R)
• M10: 5,507,745 km (0.03 R)
• M11: 5,967,609 km (0.071 R)
• M12: 6,414,607 km (0.049 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 233.8

Radius: 14.9

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.09 AU - 1.11 AU

Year: 757 Days

Day: 10.1 Hours

Environment

Temp: -168 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 88,156,348 km

• M1: 185,352 km (0.119 R)
• M2: 835,654 km (0.091 R)
• M3: 1,312,721 km (0.108 R)
• M4: 2,229,158 km (0.086 R)
• M5: 2,920,450 km (0.062 R)
• M6: 3,802,927 km (0.094 R)
• M7: 4,797,155 km (0.071 R)
• M8: 5,585,237 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 948.5

Radius: 12.4

Gravity: 6.17 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.01 AU - 1.21 AU

Year: 767 Days

Day: 11.5 Hours

Environment

Temp: -156 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 88,156,348 km

• M1: 154,235 km (0.096 R)
• M2: 691,591 km (0.078 R)
• M3: 1,291,478 km (0.069 R)
• M4: 1,690,755 km (0.085 R)
• M5: 2,505,016 km (0.1 R)
• M6: 2,996,146 km (0.092 R)
• M7: 3,638,220 km (0.06 R)
• M8: 4,745,693 km (0.106 R)
• M9: 5,142,726 km (0.101 R)
• M10: 6,404,584 km (0.064 R)
• M11: 7,166,336 km (0.095 R)
• M12: 7,788,963 km (0.08 R)
• M13: 8,473,373 km (0.093 R)
• M14: 9,115,148 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 48.7

Radius: 10.3

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 2.3 AU - 2.48 AU

Year: 2424 Days

Day: 12.9 Hours

Environment

Temp: -187 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 88,156,348 km

• M1: 128,205 km (0.096 R)
• M2: 727,494 km (0.07 R)
• M3: 1,123,330 km (0.104 R)
• M4: 1,616,854 km (0.111 R)
• M5: 2,127,431 km (0.092 R)
• M6: 2,589,539 km (0.084 R)
• M7: 3,044,915 km (0.106 R)
• M8: 3,513,456 km (0.104 R)
• M9: 4,823,035 km (0.042 R)
• M10: 7,035,139 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 127.1

Radius: 14.3

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 2.94 AU - 3.72 AU

Year: 3986 Days

Day: 8.6 Hours

Environment

Temp: -200 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 88,156,348 km

• M1: 177,872 km (0.074 R)
• M2: 763,099 km (0.079 R)
• M3: 1,324,839 km (0.083 R)
• M4: 1,867,729 km (0.086 R)
• M5: 2,830,691 km (0.034 R)
• M6: 5,661,382 km (0.09 R)
• M7: 6,130,521 km (0.107 R)
• M8: 6,935,507 km (0.077 R)
• M9: 7,781,483 km (0.059 R)
• M10: 8,849,312 km (0.111 R)
• M11: 9,354,355 km (0.088 R)
• M12: 10,284,554 km (0.077 R)
• M13: 12,840,733 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 766

Radius: 10.2

Gravity: 7.36 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 3.25 AU - 5.13 AU

Year: 5626 Days

Day: 7 Hours

Environment

Temp: -209 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 88,156,348 km

• M1: 127,308 km (0.118 R)
• M2: 623,674 km (0.071 R)
• M3: 967,898 km (0.108 R)
• M4: 1,419,684 km (0.109 R)
• M5: 2,009,847 km (0.088 R)
• M6: 2,337,916 km (0.103 R)
• M7: 2,831,439 km (0.03 R)
• M8: 3,267,068 km (0.047 R)
• M9: 4,273,862 km (0.071 R)
• M10: 4,714,128 km (0.053 R)
• M11: 5,241,909 km (0.098 R)
• M12: 5,808,736 km (0.077 R)
• M13: 6,155,204 km (0.096 R)
• M14: 8,374,190 km (0.064 R)
• M15: 8,735,618 km (0.074 R)
• M16: 11,664,146 km (0.085 R)
• M17: 13,214,279 km (0.089 R)
• M18: 13,594,856 km (0.083 R)
• M19: 15,250,456 km (0.053 R)
• M20: 20,077,530 km (0.079 R)
• M21: 20,436,416 km (0.063 R)
• M22: 21,019,398 km (0.094 R)
• M23: 23,701,389 km (0.102 R)
• M24: 24,753,212 km (0.114 R)
• M25: 25,583,181 km (0.094 R)
• M26: 27,211,254 km (0.109 R)
• M27: 28,364,205 km (0.108 R)
• M28: 29,181,309 km (0.057 R)
• M29: 29,920,771 km (0.089 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 848.1

Radius: 5.3

Gravity: 30.19 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 10.05 AU - 11.01 AU

Year: 22416 Days

Day: 21.2 Hours

Environment

Temp: -239 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 88,156,348 km

• M1: 76,295 km (0.097 R)
• M2: 375,341 km (0.095 R)
• M3: 588,219 km (0.067 R)
• M4: 847,322 km (0.088 R)
• M5: 1,393,355 km (0.119 R)
• M6: 1,561,203 km (0.08 R)
• M7: 2,327,444 km (0.114 R)
• M8: 2,690,219 km (0.112 R)
• M9: 3,620,717 km (0.112 R)
• M10: 4,564,231 km (0.088 R)
• M11: 5,092,910 km (0.086 R)
• M12: 5,291,277 km (0.058 R)
• M13: 6,271,442 km (0.095 R)
• M14: 6,685,978 km (0.034 R)
• M15: 7,569,802 km (0.05 R)
• M16: 7,880,965 km (0.051 R)
• M17: 8,093,095 km (0.116 R)
• M18: 9,270,281 km (0.078 R)
• M19: 12,523,735 km (0.101 R)
• M20: 14,404,480 km (0.114 R)
• M21: 15,370,882 km (0.108 R)
• M22: 16,988,035 km (0.103 R)
• M23: 21,264,141 km (0.094 R)
• M24: 22,408,863 km (0.098 R)
• M25: 23,593,978 km (0.097 R)
• M26: 24,035,142 km (0.116 R)
• M27: 25,971,537 km (0.079 R)
• M28: 31,461,479 km (0.113 R)
• M29: 33,082,672 km (0.09 R)
• M30: 37,676,822 km (0.113 R)
• M31: 47,054,365 km (0.109 R)
• M32: 48,104,990 km (0.119 R)
• M33: 61,957,903 km (0.051 R)
• M34: 66,887,003 km (0.103 R)
• M35: 72,999,123 km (0.103 R)
• M36: 76,550,427 km (0.107 R)
• M37: 78,246,568 km (0.117 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 323 - 18,917 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit