🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.77 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 459.4

Radius: 12.9

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.15 AU - 1.91 AU

Year: 1222 Days

Day: 10.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 74,023,110 km

• M1: 160,519 km (0.047 R)
• M2: 615,446 km (0.102 R)
• M3: 1,236,726 km (0.065 R)
• M4: 2,144,934 km (0.075 R)
• M5: 2,561,116 km (0.105 R)
• M6: 3,800,833 km (0.07 R)
• M7: 4,383,068 km (0.106 R)
• M8: 5,271,081 km (0.099 R)
• M9: 6,253,789 km (0.055 R)
• M10: 6,697,796 km (0.087 R)
• M11: 7,186,831 km (0.108 R)
• M12: 7,850,447 km (0.107 R)
• M13: 8,394,535 km (0.067 R)
• M14: 9,272,226 km (0.115 R)
• M15: 9,762,757 km (0.099 R)
• M16: 10,240,423 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 873.8

Radius: 13.6

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.48 AU - 2 AU

Year: 1482 Days

Day: 5.3 Hours

Environment

Temp: -187 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 74,023,110 km

• M1: 181,911 km (0.102 R)
• M2: 623,225 km (0.03 R)
• M3: 1,097,001 km (0.113 R)
• M4: 1,967,661 km (0.065 R)
• M5: 3,139,311 km (0.078 R)
• M6: 3,715,862 km (0.075 R)
• M7: 4,138,924 km (0.118 R)
• M8: 4,574,703 km (0.114 R)
• M9: 5,929,162 km (0.12 R)
• M10: 6,510,499 km (0.094 R)
• M11: 7,209,570 km (0.098 R)
• M12: 8,015,903 km (0.075 R)
• M13: 8,819,842 km (0.116 R)
• M14: 9,353,158 km (0.111 R)
• M15: 10,658,549 km (0.043 R)
• M16: 11,191,866 km (0.094 R)
• M17: 12,158,417 km (0.082 R)
• M18: 13,220,413 km (0.115 R)
• M19: 14,557,967 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 216.4

Radius: 13.2

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.57 AU - 2.07 AU

Year: 1585 Days

Day: 14.6 Hours

Environment

Temp: -176 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 74,023,110 km

• M1: 164,408 km (0.098 R)
• M2: 688,001 km (0.086 R)
• M3: 1,263,055 km (0.077 R)
• M4: 1,868,328 km (0.069 R)
• M5: 2,414,958 km (0.099 R)
• M6: 3,457,356 km (0.092 R)
• M7: 4,097,486 km (0.068 R)
• M8: 6,352,973 km (0.072 R)
• M9: 7,675,119 km (0.082 R)
• M10: 8,662,465 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 101.4

Radius: 14

Gravity: 0.52 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 3.78 AU - 4.2 AU

Year: 5146 Days

Day: 14.4 Hours

Environment

Temp: -213 °C

Axial Tilt: 43.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 74,023,110 km

• M1: 200,611 km (0.112 R)
• M2: 654,042 km (0.115 R)
• M3: 1,428,211 km (0.075 R)
• M4: 2,348,836 km (0.099 R)
• M5: 3,382,557 km (0.083 R)
• M6: 4,763,346 km (0.088 R)
• M7: 5,628,620 km (0.071 R)
• M8: 6,338,312 km (0.097 R)
• M9: 6,781,571 km (0.096 R)
• M10: 8,766,734 km (0.119 R)
• M11: 9,824,541 km (0.034 R)
• M12: 12,841,032 km (0.058 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 213.6

Radius: 9

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 4.02 AU - 4.48 AU

Year: 5657 Days

Day: 8.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 74,023,110 km

• M1: 111,899 km (0.057 R)
• M2: 465,997 km (0.091 R)
• M3: 1,232,387 km (0.113 R)
• M4: 1,774,380 km (0.082 R)
• M5: 2,209,411 km (0.072 R)
• M6: 2,778,780 km (0.097 R)
• M7: 3,186,584 km (0.038 R)
• M8: 3,556,689 km (0.077 R)
• M9: 4,273,712 km (0.108 R)
• M10: 5,358,596 km (0.115 R)
• M11: 8,368,654 km (0.118 R)
• M12: 8,859,784 km (0.066 R)
• M13: 10,171,758 km (0.058 R)
• M14: 11,311,095 km (0.107 R)
• M15: 13,223,255 km (0.109 R)
• M16: 13,553,866 km (0.106 R)
• M17: 15,135,714 km (0.042 R)
• M18: 16,563,027 km (0.096 R)
• M19: 18,427,017 km (0.088 R)
• M20: 20,678,465 km (0.06 R)
• M21: 20,996,061 km (0.076 R)
• M22: 21,576,202 km (0.047 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.2

Radius: 8.3

Gravity: 10.51 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 4.06 AU - 5.2 AU

Year: 6433 Days

Day: 8.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 74,023,110 km

• M1: 103,223 km (0.116 R)
• M2: 425,008 km (0.026 R)
• M3: 719,117 km (0.107 R)
• M4: 1,248,095 km (0.057 R)
• M5: 1,606,232 km (0.101 R)
• M6: 3,028,459 km (0.111 R)
• M7: 3,774,953 km (0.081 R)
• M8: 5,353,659 km (0.086 R)
• M9: 7,479,594 km (0.067 R)
• M10: 8,919,175 km (0.058 R)
• M11: 10,021,711 km (0.067 R)
• M12: 12,442,205 km (0.116 R)
• M13: 12,763,092 km (0.101 R)
• M14: 13,144,567 km (0.103 R)
• M15: 14,510,245 km (0.045 R)
• M16: 15,594,830 km (0.111 R)
• M17: 20,625,657 km (0.051 R)
• M18: 24,161,402 km (0.111 R)
• M19: 26,290,479 km (0.07 R)
• M20: 29,856,893 km (0.12 R)
• M21: 30,723,513 km (0.071 R)
• M22: 35,416,249 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 22.5

Radius: 13

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 4.97 AU - 6.51 AU

Year: 8879 Days

Day: 13.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 74,023,110 km

• M1: 165,156 km (0.087 R)
• M2: 1,113,906 km (0.059 R)
• M3: 2,043,357 km (0.102 R)
• M4: 2,571,438 km (0.12 R)
• M5: 3,099,967 km (0.096 R)
• M6: 4,303,183 km (0.034 R)
• M7: 4,949,894 km (0.049 R)
• M8: 5,394,499 km (0.105 R)
• M9: 6,076,217 km (0.105 R)
• M10: 8,005,431 km (0.095 R)
• M11: 8,771,522 km (0.107 R)
• M12: 12,143,906 km (0.063 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 429

Radius: 5.2

Gravity: 15.87 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 5.91 AU - 9.79 AU

Year: 14201 Days

Day: 18.9 Hours

Environment

Temp: -217 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 74,023,110 km

• M1: 64,626 km (0.094 R)
• M2: 454,329 km (0.095 R)
• M3: 1,016,817 km (0.037 R)
• M4: 1,651,411 km (0.119 R)
• M5: 1,857,557 km (0.118 R)
• M6: 2,226,764 km (0.092 R)
• M7: 3,229,668 km (0.12 R)
• M8: 3,816,990 km (0.062 R)
• M9: 4,236,612 km (0.036 R)
• M10: 4,907,109 km (0.096 R)
• M11: 5,234,130 km (0.112 R)
• M12: 5,716,284 km (0.087 R)
• M13: 7,132,976 km (0.079 R)
• M14: 7,382,954 km (0.077 R)
• M15: 7,900,264 km (0.045 R)
• M16: 9,055,458 km (0.086 R)
• M17: 9,398,037 km (0.065 R)
• M18: 10,318,812 km (0.117 R)
• M19: 12,457,463 km (0.089 R)
• M20: 12,637,879 km (0.059 R)
• M21: 22,512,834 km (0.073 R)
• M22: 25,481,604 km (0.087 R)
• M23: 27,975,101 km (0.104 R)
• M24: 28,911,135 km (0.119 R)
• M25: 32,408,434 km (0.105 R)
• M26: 34,376,394 km (0.069 R)
• M27: 38,294,213 km (0.059 R)
• M28: 39,576,865 km (0.087 R)
• M29: 40,097,914 km (0.118 R)
• M30: 41,554,399 km (0.104 R)
• M31: 42,635,543 km (0.07 R)
• M32: 43,320,551 km (0.064 R)
• M33: 46,566,975 km (0.119 R)
• M34: 48,918,653 km (0.092 R)
• M35: 51,194,187 km (0.098 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 944.8

Radius: 5.6

Gravity: 30.13 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 7.62 AU - 9.62 AU

Year: 16341 Days

Day: 21.4 Hours

Environment

Temp: -228 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 74,023,110 km

• M1: 69,713 km (0.046 R)
• M2: 272,567 km (0.049 R)
• M3: 493,823 km (0.075 R)
• M4: 754,572 km (0.096 R)
• M5: 1,054,067 km (0.102 R)
• M6: 1,399,638 km (0.052 R)
• M7: 1,817,913 km (0.071 R)
• M8: 3,001,980 km (0.079 R)
• M9: 4,032,261 km (0.116 R)
• M10: 5,548,735 km (0.107 R)
• M11: 8,717,068 km (0.069 R)
• M12: 9,481,214 km (0.113 R)
• M13: 11,017,434 km (0.049 R)
• M14: 12,712,229 km (0.068 R)
• M15: 14,498,876 km (0.088 R)
• M16: 16,691,083 km (0.066 R)
• M17: 21,138,329 km (0.11 R)
• M18: 26,093,609 km (0.067 R)
• M19: 26,762,760 km (0.075 R)
• M20: 29,915,984 km (0.084 R)
• M21: 31,896,959 km (0.091 R)
• M22: 33,438,714 km (0.074 R)
• M23: 33,831,858 km (0.072 R)
• M24: 34,227,993 km (0.108 R)
• M25: 45,007,118 km (0.08 R)
• M26: 48,936,306 km (0.116 R)
• M27: 55,982,814 km (0.062 R)
• M28: 57,844,261 km (0.09 R)
• M29: 59,554,613 km (0.096 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 269 - 12,573 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit