🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 384.7

Radius: 13.8

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.61 AU - 1.01 AU

Year: 478 Days

Day: 8.4 Hours

Environment

Temp: -150 °C

Axial Tilt: 111.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 77,127,990 km

• M1: 171,589 km (0.113 R)
• M2: 892,501 km (0.116 R)
• M3: 1,355,207 km (0.057 R)
• M4: 1,892,563 km (0.036 R)
• M5: 3,354,283 km (0.059 R)
• M6: 3,906,449 km (0.104 R)
• M7: 4,587,867 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 741.3

Radius: 14.6

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 1.46 AU - 1.72 AU

Year: 1315 Days

Day: 13.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 77,127,990 km

• M1: 181,612 km (0.093 R)
• M2: 811,868 km (0.044 R)
• M3: 1,272,330 km (0.111 R)
• M4: 3,200,646 km (0.111 R)
• M5: 4,005,782 km (0.063 R)
• M6: 4,690,791 km (0.057 R)
• M7: 7,670,780 km (0.096 R)
• M8: 8,189,287 km (0.11 R)
• M9: 9,388,613 km (0.105 R)
• M10: 10,014,680 km (0.088 R)
• M11: 10,971,957 km (0.097 R)
• M12: 12,317,889 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 72.1

Radius: 8.2

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.42 AU - 2.14 AU

Year: 1558 Days

Day: 5 Hours

Environment

Temp: -177 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 77,127,990 km

• M1: 107,710 km (0.118 R)
• M2: 458,667 km (0.075 R)
• M3: 1,216,679 km (0.058 R)
• M4: 1,964,968 km (0.097 R)
• M5: 2,611,380 km (0.104 R)
• M6: 3,479,497 km (0.099 R)
• M7: 5,027,236 km (0.116 R)
• M8: 6,229,106 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 948.1

Radius: 14.3

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 1.88 AU - 2.1 AU

Year: 1842 Days

Day: 12.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 77,127,990 km

• M1: 178,021 km (0.069 R)
• M2: 911,500 km (0.112 R)
• M3: 1,576,762 km (0.077 R)
• M4: 2,094,071 km (0.037 R)
• M5: 2,654,165 km (0.091 R)
• M6: 3,215,457 km (0.094 R)
• M7: 4,256,359 km (0.071 R)
• M8: 4,986,695 km (0.104 R)
• M9: 5,799,610 km (0.044 R)
• M10: 7,719,699 km (0.076 R)
• M11: 10,212,448 km (0.08 R)
• M12: 11,369,139 km (0.119 R)
• M13: 12,694,726 km (0.089 R)
• M14: 16,186,041 km (0.078 R)
• M15: 16,631,992 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 909.6

Radius: 9.8

Gravity: 9.47 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 2.19 AU - 2.43 AU

Year: 2303 Days

Day: 7.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 77,127,990 km

• M1: 121,922 km (0.118 R)
• M2: 702,362 km (0.101 R)
• M3: 1,409,511 km (0.053 R)
• M4: 1,786,348 km (0.099 R)
• M5: 2,217,040 km (0.043 R)
• M6: 3,100,865 km (0.108 R)
• M7: 3,412,926 km (0.089 R)
• M8: 5,524,799 km (0.048 R)
• M9: 6,065,595 km (0.083 R)
• M10: 9,244,400 km (0.055 R)
• M11: 9,638,890 km (0.098 R)
• M12: 10,081,999 km (0.115 R)
• M13: 10,423,232 km (0.1 R)
• M14: 11,169,127 km (0.103 R)
• M15: 14,321,154 km (0.108 R)
• M16: 14,947,520 km (0.092 R)
• M17: 16,358,527 km (0.118 R)
• M18: 16,777,551 km (0.1 R)
• M19: 18,022,205 km (0.049 R)
• M20: 18,356,706 km (0.051 R)
• M21: 18,980,978 km (0.112 R)
• M22: 19,385,490 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 179.3

Radius: 12.5

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.9 AU - 3.14 AU

Year: 3443 Days

Day: 11.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 77,127,990 km

• M1: 155,432 km (0.114 R)
• M2: 676,631 km (0.099 R)
• M3: 1,374,056 km (0.069 R)
• M4: 2,203,427 km (0.039 R)
• M5: 3,311,199 km (0.052 R)
• M6: 4,063,078 km (0.102 R)
• M7: 5,290,230 km (0.101 R)
• M8: 8,833,605 km (0.056 R)
• M9: 10,039,214 km (0.049 R)
• M10: 12,339,880 km (0.115 R)
• M11: 13,929,058 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.2

Radius: 9

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 2.82 AU - 4.54 AU

Year: 4631 Days

Day: 14.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 77,127,990 km

• M1: 112,198 km (0.086 R)
• M2: 739,761 km (0.09 R)
• M3: 2,378,008 km (0.113 R)
• M4: 3,420,256 km (0.07 R)
• M5: 3,822,226 km (0.049 R)
• M6: 4,445,600 km (0.067 R)
• M7: 9,432,295 km (0.045 R)
• M8: 12,870,653 km (0.056 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 537.2

Radius: 14

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 4.51 AU - 6.51 AU

Year: 8485 Days

Day: 14.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 77,127,990 km

• M1: 175,777 km (0.104 R)
• M2: 635,492 km (0.102 R)
• M3: 1,228,498 km (0.068 R)
• M4: 1,909,018 km (0.115 R)
• M5: 2,932,417 km (0.034 R)
• M6: 4,063,527 km (0.086 R)
• M7: 4,900,228 km (0.107 R)
• M8: 5,784,202 km (0.03 R)
• M9: 6,844,252 km (0.116 R)
• M10: 8,482,349 km (0.08 R)
• M11: 11,773,203 km (0.103 R)
• M12: 12,740,802 km (0.085 R)
• M13: 14,712,502 km (0.12 R)
• M14: 16,027,766 km (0.09 R)
• M15: 17,014,215 km (0.033 R)
• M16: 19,180,841 km (0.11 R)
• M17: 21,212,978 km (0.103 R)
• M18: 21,841,738 km (0.067 R)
• M19: 25,613,250 km (0.119 R)
• M20: 33,143,707 km (0.084 R)
• M21: 33,884,067 km (0.098 R)
• M22: 34,635,647 km (0.081 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 785.8

Radius: 4.8

Gravity: 34.11 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 7.27 AU - 11.63 AU

Year: 19057 Days

Day: 19.8 Hours

Environment

Temp: -234 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 77,127,990 km

• M1: 59,690 km (0.117 R)
• M2: 232,924 km (0.113 R)
• M3: 445,054 km (0.068 R)
• M4: 694,882 km (0.033 R)
• M5: 891,603 km (0.104 R)
• M6: 1,193,043 km (0.119 R)
• M7: 1,493,884 km (0.071 R)
• M8: 1,715,439 km (0.049 R)
• M9: 1,881,642 km (0.084 R)
• M10: 3,625,504 km (0.099 R)
• M11: 4,123,815 km (0.102 R)
• M12: 4,631,251 km (0.052 R)
• M13: 5,449,402 km (0.108 R)
• M14: 5,892,810 km (0.102 R)
• M15: 8,529,622 km (0.105 R)
• M16: 11,403,995 km (0.026 R)
• M17: 13,739,667 km (0.098 R)
• M18: 20,357,577 km (0.114 R)
• M19: 21,224,647 km (0.069 R)
• M20: 25,708,992 km (0.082 R)
• M21: 26,043,493 km (0.056 R)
• M22: 27,643,293 km (0.107 R)
• M23: 32,964,639 km (0.115 R)
• M24: 33,624,515 km (0.115 R)
• M25: 50,112,594 km (0.119 R)
• M26: 50,460,259 km (0.081 R)
• M27: 50,809,421 km (0.081 R)
• M28: 52,579,612 km (0.082 R)
• M29: 64,275,922 km (0.094 R)
• M30: 70,833,844 km (0.074 R)
• M31: 75,520,895 km (0.058 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: 328 - 12,961 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit