🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 90.8

Radius: 8.6

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.58 AU - 0.82 AU

Year: 378 Days

Day: 11.9 Hours

Environment

Temp: -145 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 69,625,029 km

• M1: 106,962 km (0.108 R)
• M2: 383,419 km (0.087 R)
• M3: 847,173 km (0.116 R)
• M4: 1,214,585 km (0.083 R)
• M5: 1,603,839 km (0.091 R)
• M6: 2,075,072 km (0.085 R)
• M7: 2,470,459 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 26.6

Radius: 14.7

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.21 AU - 1.79 AU

Year: 1186 Days

Day: 12 Hours

Environment

Temp: -169 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 69,625,029 km

• M1: 187,745 km (0.113 R)
• M2: 745,297 km (0.098 R)
• M3: 1,571,376 km (0.099 R)
• M4: 2,131,620 km (0.116 R)
• M5: 2,625,891 km (0.119 R)
• M6: 3,120,312 km (0.045 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 402.9

Radius: 14.3

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 2.09 AU - 2.23 AU

Year: 2050 Days

Day: 10.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 69,625,029 km

• M1: 177,872 km (0.117 R)
• M2: 710,141 km (0.106 R)
• M3: 1,243,458 km (0.061 R)
• M4: 1,900,791 km (0.116 R)
• M5: 2,360,355 km (0.086 R)
• M6: 2,839,517 km (0.084 R)
• M7: 3,306,412 km (0.074 R)
• M8: 4,492,723 km (0.04 R)
• M9: 5,452,244 km (0.08 R)
• M10: 6,348,784 km (0.073 R)
• M11: 7,314,737 km (0.115 R)
• M12: 9,635,300 km (0.097 R)
• M13: 10,394,509 km (0.103 R)
• M14: 12,449,086 km (0.114 R)
• M15: 13,755,823 km (0.048 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 990

Radius: 9.7

Gravity: 10.52 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 2.25 AU - 2.87 AU

Year: 2645 Days

Day: 10.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 69,625,029 km

• M1: 120,875 km (0.068 R)
• M2: 439,219 km (0.077 R)
• M3: 769,531 km (0.112 R)
• M4: 1,813,425 km (0.049 R)
• M5: 2,117,558 km (0.062 R)
• M6: 2,426,328 km (0.052 R)
• M7: 3,225,330 km (0.079 R)
• M8: 3,637,023 km (0.043 R)
• M9: 3,958,360 km (0.051 R)
• M10: 4,869,710 km (0.12 R)
• M11: 5,211,242 km (0.062 R)
• M12: 5,542,601 km (0.103 R)
• M13: 6,304,353 km (0.103 R)
• M14: 8,002,140 km (0.077 R)
• M15: 8,340,829 km (0.088 R)
• M16: 9,010,878 km (0.101 R)
• M17: 9,908,017 km (0.109 R)
• M18: 10,498,180 km (0.089 R)
• M19: 11,153,419 km (0.095 R)
• M20: 11,533,846 km (0.095 R)
• M21: 14,196,988 km (0.071 R)
• M22: 15,100,559 km (0.114 R)
• M23: 16,636,330 km (0.119 R)
• M24: 18,448,858 km (0.07 R)
• M25: 21,800,000 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 384.7

Radius: 13.2

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 2.55 AU - 2.81 AU

Year: 2833 Days

Day: 8.8 Hours

Environment

Temp: -196 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 69,625,029 km

• M1: 164,408 km (0.06 R)
• M2: 606,769 km (0.062 R)
• M3: 1,047,933 km (0.064 R)
• M4: 1,507,348 km (0.111 R)
• M5: 2,622,750 km (0.094 R)
• M6: 3,292,799 km (0.051 R)
• M7: 3,979,902 km (0.092 R)
• M8: 5,267,939 km (0.103 R)
• M9: 5,689,805 km (0.103 R)
• M10: 6,817,474 km (0.076 R)
• M11: 8,781,245 km (0.079 R)
• M12: 10,141,389 km (0.079 R)
• M13: 11,288,655 km (0.119 R)
• M14: 15,157,256 km (0.082 R)
• M15: 15,630,285 km (0.103 R)
• M16: 16,555,996 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 202.6

Radius: 10

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 4.14 AU - 6.1 AU

Year: 7480 Days

Day: 14.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 69,625,029 km

• M1: 124,465 km (0.113 R)
• M2: 543,489 km (0.105 R)
• M3: 867,518 km (0.104 R)
• M4: 1,595,910 km (0.08 R)
• M5: 2,386,086 km (0.037 R)
• M6: 3,558,036 km (0.103 R)
• M7: 4,090,305 km (0.117 R)
• M8: 4,873,599 km (0.106 R)
• M9: 6,216,839 km (0.089 R)
• M10: 6,673,711 km (0.076 R)
• M11: 6,990,559 km (0.073 R)
• M12: 10,271,839 km (0.084 R)
• M13: 11,174,213 km (0.091 R)
• M14: 11,486,573 km (0.086 R)
• M15: 13,087,271 km (0.109 R)
• M16: 13,534,718 km (0.107 R)
• M17: 16,959,013 km (0.045 R)
• M18: 19,218,539 km (0.062 R)
• M19: 21,879,287 km (0.099 R)
• M20: 23,881,804 km (0.079 R)
• M21: 25,003,339 km (0.065 R)
• M22: 25,925,610 km (0.048 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 477.2

Radius: 7.7

Gravity: 8.05 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 6.93 AU - 8.29 AU

Year: 13555 Days

Day: 24.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 69,625,029 km

• M1: 98,136 km (0.06 R)
• M2: 364,720 km (0.106 R)
• M3: 633,996 km (0.088 R)
• M4: 927,058 km (0.101 R)
• M5: 1,719,478 km (0.077 R)
• M6: 1,979,629 km (0.118 R)
• M7: 2,642,646 km (0.107 R)
• M8: 4,829,468 km (0.095 R)
• M9: 6,207,264 km (0.039 R)
• M10: 9,465,057 km (0.079 R)
• M11: 11,771,258 km (0.112 R)
• M12: 12,297,394 km (0.119 R)
• M13: 13,271,575 km (0.098 R)
• M14: 14,230,647 km (0.099 R)
• M15: 18,845,891 km (0.056 R)
• M16: 19,810,049 km (0.106 R)
• M17: 20,722,297 km (0.066 R)
• M18: 23,811,493 km (0.113 R)
• M19: 24,183,094 km (0.12 R)
• M20: 25,610,856 km (0.087 R)
• M21: 27,093,820 km (0.1 R)
• M22: 30,995,332 km (0.109 R)
• M23: 33,368,403 km (0.084 R)
• M24: 35,617,308 km (0.067 R)
• M25: 42,694,036 km (0.095 R)
• M26: 47,068,277 km (0.106 R)
• M27: 47,800,708 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 683.9

Radius: 4.3

Gravity: 36.99 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 8.53 AU - 9.53 AU

Year: 17521 Days

Day: 15.5 Hours

Environment

Temp: -235 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 69,625,029 km

• M1: 60,288 km (0.044 R)
• M2: 426,354 km (0.101 R)
• M3: 3,166,089 km (0.112 R)
• M4: 4,341,181 km (0.078 R)
• M5: 6,061,107 km (0.086 R)
• M6: 7,369,191 km (0.118 R)
• M7: 8,339,184 km (0.119 R)
• M8: 9,282,249 km (0.095 R)
• M9: 10,826,847 km (0.076 R)
• M10: 11,069,494 km (0.112 R)
• M11: 14,053,374 km (0.103 R)
• M12: 15,005,863 km (0.111 R)
• M13: 17,366,966 km (0.11 R)
• M14: 17,867,072 km (0.114 R)
• M15: 20,791,262 km (0.079 R)
• M16: 22,219,772 km (0.117 R)
• M17: 24,953,972 km (0.094 R)
• M18: 25,805,184 km (0.039 R)
• M19: 28,017,587 km (0.067 R)
• M20: 31,939,145 km (0.036 R)
• M21: 33,195,917 km (0.084 R)
• M22: 43,233,037 km (0.093 R)
• M23: 46,660,922 km (0.081 R)
• M24: 52,480,579 km (0.074 R)
• M25: 67,150,445 km (0.037 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 538 - 12,883 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit