🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 718.5

Radius: 12.9

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.84 AU - 1.16 AU

Year: 656 Days

Day: 13.8 Hours

Environment

Temp: -149 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 75,797,584 km

• M1: 165,006 km (0.086 R)
• M2: 599,887 km (0.073 R)
• M3: 1,056,909 km (0.103 R)
• M4: 1,635,853 km (0.11 R)
• M5: 2,055,325 km (0.077 R)
• M6: 2,868,390 km (0.1 R)
• M7: 3,513,904 km (0.087 R)
• M8: 4,179,017 km (0.117 R)
• M9: 5,201,069 km (0.102 R)
• M10: 5,613,511 km (0.104 R)
• M11: 6,145,181 km (0.104 R)
• M12: 7,005,668 km (0.114 R)
• M13: 7,645,648 km (0.066 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 314

Radius: 10.5

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.91 AU - 1.19 AU

Year: 706 Days

Day: 8.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 75,797,584 km

• M1: 130,749 km (0.1 R)
• M2: 483,351 km (0.086 R)
• M3: 818,450 km (0.055 R)
• M4: 1,210,396 km (0.059 R)
• M5: 1,899,743 km (0.1 R)
• M6: 2,686,628 km (0.086 R)
• M7: 3,464,687 km (0.074 R)
• M8: 4,117,532 km (0.032 R)
• M9: 4,712,483 km (0.102 R)
• M10: 5,086,776 km (0.116 R)
• M11: 5,413,797 km (0.085 R)
• M12: 6,183,179 km (0.065 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 286.9

Radius: 12.3

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.09 AU - 1.15 AU

Year: 778 Days

Day: 7.3 Hours

Environment

Temp: -170 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 75,797,584 km

• M1: 153,637 km (0.09 R)
• M2: 552,166 km (0.072 R)
• M3: 1,019,360 km (0.106 R)
• M4: 1,450,052 km (0.057 R)
• M5: 1,897,051 km (0.089 R)
• M6: 2,759,482 km (0.091 R)
• M7: 3,696,713 km (0.096 R)
• M8: 4,560,641 km (0.108 R)
• M9: 5,588,827 km (0.102 R)
• M10: 6,457,093 km (0.07 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 281.3

Radius: 10

Gravity: 2.81 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1 AU - 1.44 AU

Year: 884 Days

Day: 8.8 Hours

Environment

Temp: -177 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 75,797,584 km

• M1: 124,316 km (0.117 R)
• M2: 440,416 km (0.091 R)
• M3: 926,609 km (0.067 R)
• M4: 1,350,719 km (0.095 R)
• M5: 1,716,486 km (0.119 R)
• M6: 2,157,800 km (0.081 R)
• M7: 4,067,267 km (0.113 R)
• M8: 4,542,240 km (0.112 R)
• M9: 5,103,831 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 813.1

Radius: 12.4

Gravity: 5.29 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 2.02 AU - 3 AU

Year: 2609 Days

Day: 14.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 75,797,584 km

• M1: 154,235 km (0.073 R)
• M2: 615,446 km (0.068 R)
• M3: 1,082,041 km (0.09 R)
• M4: 1,561,353 km (0.079 R)
• M5: 2,372,323 km (0.029 R)
• M6: 2,850,438 km (0.082 R)
• M7: 3,575,838 km (0.111 R)
• M8: 5,199,424 km (0.083 R)
• M9: 6,013,386 km (0.096 R)
• M10: 6,620,903 km (0.116 R)
• M11: 8,089,206 km (0.091 R)
• M12: 8,624,018 km (0.104 R)
• M13: 10,922,739 km (0.083 R)
• M14: 11,828,853 km (0.064 R)
• M15: 13,743,856 km (0.101 R)
• M16: 15,297,429 km (0.093 R)
• M17: 16,116,627 km (0.075 R)
• M18: 17,842,837 km (0.112 R)
• M19: 18,750,747 km (0.086 R)
• M20: 19,216,146 km (0.073 R)
• M21: 19,629,634 km (0.068 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 146.2

Radius: 13.5

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 3.73 AU - 4.47 AU

Year: 5446 Days

Day: 7.7 Hours

Environment

Temp: -209 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 75,797,584 km

• M1: 168,148 km (0.097 R)
• M2: 588,069 km (0.094 R)
• M3: 1,066,184 km (0.106 R)
• M4: 4,258,004 km (0.113 R)
• M5: 6,552,088 km (0.07 R)
• M6: 7,473,760 km (0.09 R)
• M7: 8,447,343 km (0.062 R)
• M8: 9,972,344 km (0.097 R)
• M9: 10,878,009 km (0.073 R)
• M10: 13,471,887 km (0.059 R)
• M11: 16,764,237 km (0.11 R)
• M12: 18,154,001 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 674.5

Radius: 7.8

Gravity: 11.09 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 5.38 AU - 8.06 AU

Year: 11428 Days

Day: 18.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 75,797,584 km

• M1: 99,483 km (0.039 R)
• M2: 390,450 km (0.094 R)
• M3: 807,230 km (0.095 R)
• M4: 1,226,852 km (0.072 R)
• M5: 1,602,343 km (0.073 R)
• M6: 2,797,031 km (0.115 R)
• M7: 3,254,950 km (0.073 R)
• M8: 4,034,804 km (0.096 R)
• M9: 5,294,418 km (0.109 R)
• M10: 9,480,765 km (0.04 R)
• M11: 10,566,397 km (0.088 R)
• M12: 17,638,187 km (0.119 R)
• M13: 21,870,910 km (0.117 R)
• M14: 22,487,851 km (0.066 R)
• M15: 26,436,337 km (0.105 R)
• M16: 27,338,861 km (0.026 R)
• M17: 28,678,361 km (0.09 R)
• M18: 36,651,030 km (0.114 R)
• M19: 38,405,364 km (0.12 R)
• M20: 38,788,484 km (0.116 R)
• M21: 40,609,988 km (0.082 R)
• M22: 43,448,009 km (0.116 R)
• M23: 50,885,566 km (0.103 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 548.4

Radius: 7.1

Gravity: 10.88 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 8.51 AU - 12.43 AU

Year: 22224 Days

Day: 23.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 75,797,584 km

• M1: 115,340 km (0.054 R)
• M2: 354,248 km (0.117 R)
• M3: 591,360 km (0.114 R)
• M4: 1,033,721 km (0.082 R)
• M5: 1,257,071 km (0.035 R)
• M6: 1,645,726 km (0.097 R)
• M7: 2,071,781 km (0.059 R)
• M8: 2,365,591 km (0.111 R)
• M9: 4,933,738 km (0.119 R)
• M10: 7,126,244 km (0.054 R)
• M11: 7,998,998 km (0.108 R)
• M12: 8,619,081 km (0.114 R)
• M13: 9,780,858 km (0.067 R)
• M14: 10,072,275 km (0.111 R)
• M15: 12,009,717 km (0.089 R)
• M16: 12,684,403 km (0.089 R)
• M17: 17,272,869 km (0.047 R)
• M18: 18,219,375 km (0.064 R)
• M19: 21,755,570 km (0.097 R)
• M20: 25,834,655 km (0.075 R)
• M21: 27,071,081 km (0.027 R)
• M22: 28,464,585 km (0.096 R)
• M23: 32,671,277 km (0.059 R)
• M24: 35,466,364 km (0.104 R)
• M25: 40,174,508 km (0.091 R)
• M26: 44,641,800 km (0.119 R)
• M27: 46,747,539 km (0.09 R)
• M28: 49,600,072 km (0.094 R)
• M29: 55,096,597 km (0.109 R)
• M30: 60,008,643 km (0.042 R)
• M31: 61,774,795 km (0.084 R)
• M32: 62,770,668 km (0.074 R)
• M33: 64,386,475 km (0.034 R)
• M34: 65,204,775 km (0.118 R)
• M35: 72,221,364 km (0.09 R)
• M36: 75,344,220 km (0.063 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: 546 - 13,068 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit