🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 845

Radius: 14.6

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.57 AU - 0.59 AU

Year: 310 Days

Day: 10.6 Hours

Environment

Temp: -147 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 50,790,870 km

• M1: 181,612 km (0.078 R)
• M2: 696,528 km (0.112 R)
• M3: 1,342,940 km (0.116 R)
• M4: 1,804,300 km (0.083 R)
• M5: 2,322,657 km (0.108 R)
• M6: 3,136,020 km (0.05 R)
• M7: 3,703,894 km (0.081 R)
• M8: 4,274,759 km (0.085 R)
• M9: 4,818,697 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 426.8

Radius: 14.4

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1.16 AU - 1.88 AU

Year: 1317 Days

Day: 9.2 Hours

Environment

Temp: -201 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 50,790,870 km

• M1: 179,069 km (0.096 R)
• M2: 764,445 km (0.062 R)
• M3: 1,450,501 km (0.041 R)
• M4: 2,286,603 km (0.11 R)
• M5: 2,796,882 km (0.105 R)
• M6: 3,814,746 km (0.088 R)
• M7: 4,487,637 km (0.113 R)
• M8: 5,296,961 km (0.1 R)
• M9: 5,819,806 km (0.106 R)
• M10: 7,111,733 km (0.065 R)
• M11: 8,240,000 km (0.083 R)
• M12: 8,723,650 km (0.08 R)
• M13: 9,718,476 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 988

Radius: 13.5

Gravity: 5.42 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 1.63 AU - 2.53 AU

Year: 2109 Days

Day: 14.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 50,790,870 km

• M1: 167,849 km (0.118 R)
• M2: 656,136 km (0.076 R)
• M3: 1,107,922 km (0.071 R)
• M4: 1,755,082 km (0.053 R)
• M5: 3,229,668 km (0.095 R)
• M6: 4,153,884 km (0.073 R)
• M7: 4,833,358 km (0.091 R)
• M8: 5,536,767 km (0.063 R)
• M9: 6,227,311 km (0.096 R)
• M10: 6,719,188 km (0.093 R)
• M11: 7,236,947 km (0.088 R)
• M12: 7,688,732 km (0.037 R)
• M13: 8,516,457 km (0.105 R)
• M14: 9,227,795 km (0.114 R)
• M15: 10,425,476 km (0.091 R)
• M16: 12,519,547 km (0.108 R)
• M17: 14,171,406 km (0.114 R)
• M18: 14,641,892 km (0.117 R)
• M19: 17,525,540 km (0.073 R)
• M20: 18,177,637 km (0.085 R)

Planet 4 - Ice Giant

Semi-Major Axis: 5.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 487.5

Radius: 6.6

Gravity: 11.19 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 4.5 AU - 7.12 AU

Year: 9844 Days

Day: 16.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 50,790,870 km

• M1: 82,129 km (0.116 R)
• M2: 462,407 km (0.077 R)
• M3: 688,599 km (0.059 R)
• M4: 1,081,293 km (0.096 R)
• M5: 1,293,124 km (0.088 R)
• M6: 2,328,940 km (0.063 R)
• M7: 2,608,688 km (0.087 R)
• M8: 3,038,034 km (0.094 R)
• M9: 3,258,541 km (0.103 R)
• M10: 4,011,168 km (0.083 R)
• M11: 4,498,408 km (0.108 R)
• M12: 4,727,293 km (0.071 R)
• M13: 5,024,394 km (0.118 R)
• M14: 5,333,762 km (0.056 R)
• M15: 6,059,462 km (0.118 R)
• M16: 9,581,744 km (0.116 R)
• M17: 10,853,326 km (0.095 R)
• M18: 11,743,283 km (0.09 R)
• M19: 12,068,659 km (0.097 R)
• M20: 12,737,511 km (0.086 R)
• M21: 13,489,689 km (0.104 R)
• M22: 18,856,812 km (0.091 R)
• M23: 20,372,238 km (0.1 R)
• M24: 20,842,275 km (0.105 R)
• M25: 22,213,339 km (0.081 R)
• M26: 23,216,542 km (0.084 R)
• M27: 30,080,242 km (0.074 R)
• M28: 31,100,500 km (0.072 R)
• M29: 35,751,498 km (0.096 R)
• M30: 42,222,353 km (0.096 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 61.2

Radius: 3.2

Gravity: 5.98 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 5.28 AU - 7.32 AU

Year: 11115 Days

Day: 17.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 50,790,870 km

• M1: 39,793 km (0.038 R)
• M2: 187,446 km (0.062 R)
• M3: 476,768 km (0.084 R)
• M4: 704,008 km (0.066 R)
• M5: 1,610,271 km (0.078 R)
• M6: 1,877,453 km (0.054 R)
• M7: 2,707,273 km (0.095 R)
• M8: 3,066,756 km (0.114 R)
• M9: 3,399,312 km (0.034 R)
• M10: 3,714,665 km (0.06 R)
• M11: 4,729,985 km (0.081 R)
• M12: 7,845,511 km (0.091 R)
• M13: 11,058,574 km (0.088 R)
• M14: 17,393,894 km (0.063 R)
• M15: 19,844,008 km (0.11 R)
• M16: 21,445,603 km (0.102 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 296.6

Radius: 7.3

Gravity: 5.57 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 4.97 AU - 7.91 AU

Year: 11488 Days

Day: 15.6 Hours

Environment

Temp: -233 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 50,790,870 km

• M1: 90,806 km (0.11 R)
• M2: 458,368 km (0.106 R)
• M3: 925,113 km (0.103 R)
• M4: 1,650,513 km (0.118 R)
• M5: 2,391,023 km (0.108 R)
• M6: 2,630,679 km (0.119 R)
• M7: 2,906,687 km (0.108 R)
• M8: 5,355,005 km (0.073 R)
• M9: 6,409,371 km (0.052 R)
• M10: 7,097,521 km (0.112 R)
• M11: 7,517,742 km (0.051 R)
• M12: 8,662,764 km (0.034 R)
• M13: 9,142,823 km (0.068 R)
• M14: 9,640,685 km (0.109 R)
• M15: 10,348,283 km (0.078 R)
• M16: 10,789,298 km (0.11 R)
• M17: 11,039,575 km (0.072 R)
• M18: 13,014,566 km (0.116 R)
• M19: 18,420,883 km (0.119 R)
• M20: 18,995,938 km (0.099 R)
• M21: 23,528,304 km (0.11 R)
• M22: 26,585,636 km (0.109 R)
• M23: 27,134,959 km (0.112 R)
• M24: 27,505,513 km (0.114 R)
• M25: 27,973,306 km (0.059 R)
• M26: 32,425,338 km (0.099 R)
• M27: 34,331,066 km (0.084 R)
• M28: 38,248,136 km (0.114 R)
• M29: 39,065,689 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 149.2

Radius: 5.8

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 9.12 AU - 11.56 AU

Year: 23372 Days

Day: 23.3 Hours

Environment

Temp: -241 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 50,790,870 km

• M1: 74,649 km (0.115 R)
• M2: 2,341,207 km (0.111 R)
• M3: 3,593,341 km (0.088 R)
• M4: 6,959,592 km (0.036 R)
• M5: 9,171,397 km (0.092 R)
• M6: 15,190,317 km (0.096 R)
• M7: 18,148,316 km (0.117 R)
• M8: 19,081,807 km (0.092 R)
• M9: 25,652,594 km (0.112 R)
• M10: 30,564,790 km (0.075 R)
• M11: 33,012,061 km (0.052 R)
• M12: 33,817,197 km (0.042 R)
• M13: 40,213,703 km (0.101 R)
• M14: 43,283,002 km (0.082 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 473 - 16,657 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit