🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 690.9

Radius: 13.7

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 0.73 AU - 0.95 AU

Year: 505 Days

Day: 13.2 Hours

Environment

Temp: -139 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 69,430,683 km

• M1: 203,453 km (0.11 R)
• M2: 686,205 km (0.105 R)
• M3: 1,258,118 km (0.053 R)
• M4: 2,001,320 km (0.054 R)
• M5: 2,659,102 km (0.095 R)
• M6: 4,154,931 km (0.118 R)
• M7: 4,589,812 km (0.08 R)
• M8: 6,210,107 km (0.054 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 781.6

Radius: 13.3

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.69 AU - 1.11 AU

Year: 560 Days

Day: 7.3 Hours

Environment

Temp: -157 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 69,430,683 km

• M1: 165,455 km (0.116 R)
• M2: 634,445 km (0.079 R)
• M3: 1,093,860 km (0.057 R)
• M4: 2,124,589 km (0.037 R)
• M5: 2,571,438 km (0.067 R)
• M6: 3,274,398 km (0.064 R)
• M7: 4,248,580 km (0.089 R)
• M8: 4,852,357 km (0.12 R)
• M9: 5,495,328 km (0.093 R)
• M10: 6,194,549 km (0.113 R)
• M11: 6,869,684 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.5

Radius: 14

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1 AU - 1.2 AU

Year: 757 Days

Day: 6.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 69,430,683 km

• M1: 174,132 km (0.043 R)
• M2: 682,465 km (0.061 R)
• M3: 1,125,425 km (0.081 R)
• M4: 1,611,767 km (0.082 R)
• M5: 2,211,206 km (0.063 R)
• M6: 2,934,063 km (0.118 R)
• M7: 3,464,387 km (0.056 R)
• M8: 4,396,831 km (0.116 R)
• M9: 4,854,750 km (0.048 R)
• M10: 5,380,886 km (0.053 R)
• M11: 6,569,291 km (0.106 R)
• M12: 7,126,244 km (0.117 R)
• M13: 7,645,199 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 940.8

Radius: 10.7

Gravity: 8.22 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.91 AU - 1.35 AU

Year: 788 Days

Day: 8.1 Hours

Environment

Temp: -160 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 69,430,683 km

• M1: 140,173 km (0.044 R)
• M2: 473,926 km (0.117 R)
• M3: 874,699 km (0.076 R)
• M4: 1,538,913 km (0.072 R)
• M5: 1,940,883 km (0.071 R)
• M6: 2,737,342 km (0.069 R)
• M7: 3,090,842 km (0.077 R)
• M8: 3,829,556 km (0.115 R)
• M9: 5,134,797 km (0.102 R)
• M10: 5,557,262 km (0.095 R)
• M11: 5,920,186 km (0.114 R)
• M12: 6,341,903 km (0.071 R)
• M13: 8,156,525 km (0.055 R)
• M14: 8,626,412 km (0.071 R)
• M15: 9,004,146 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 812.7

Radius: 11

Gravity: 6.72 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 2.79 AU - 4.29 AU

Year: 4369 Days

Day: 10.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 69,430,683 km

• M1: 136,882 km (0.088 R)
• M2: 523,892 km (0.112 R)
• M3: 1,493,585 km (0.116 R)
• M4: 1,875,209 km (0.062 R)
• M5: 2,648,032 km (0.106 R)
• M6: 3,994,562 km (0.105 R)
• M7: 4,490,928 km (0.119 R)
• M8: 5,135,396 km (0.062 R)
• M9: 7,202,838 km (0.084 R)
• M10: 7,868,100 km (0.077 R)
• M11: 8,234,465 km (0.112 R)
• M12: 8,961,960 km (0.043 R)
• M13: 9,321,443 km (0.071 R)
• M14: 11,082,210 km (0.115 R)
• M15: 14,043,949 km (0.104 R)
• M16: 16,466,537 km (0.082 R)
• M17: 20,022,777 km (0.104 R)
• M18: 21,125,912 km (0.05 R)
• M19: 22,561,453 km (0.074 R)
• M20: 24,756,952 km (0.116 R)
• M21: 25,466,345 km (0.113 R)
• M22: 26,108,269 km (0.071 R)
• M23: 28,013,996 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 247.9

Radius: 10.2

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 4.26 AU - 4.6 AU

Year: 6117 Days

Day: 8.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 69,430,683 km

• M1: 126,859 km (0.115 R)
• M2: 448,644 km (0.062 R)
• M3: 849,267 km (0.099 R)
• M4: 1,387,371 km (0.111 R)
• M5: 2,834,880 km (0.1 R)
• M6: 3,336,930 km (0.08 R)
• M7: 3,772,410 km (0.06 R)
• M8: 4,427,050 km (0.119 R)
• M9: 5,363,233 km (0.089 R)
• M10: 7,198,650 km (0.042 R)
• M11: 10,960,886 km (0.057 R)
• M12: 11,881,661 km (0.036 R)
• M13: 14,692,007 km (0.062 R)
• M14: 17,918,085 km (0.116 R)
• M15: 19,256,537 km (0.092 R)
• M16: 23,958,249 km (0.082 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 464.3

Radius: 9.7

Gravity: 4.93 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 4.23 AU - 6.07 AU

Year: 7667 Days

Day: 8.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 69,430,683 km

• M1: 120,875 km (0.089 R)
• M2: 436,975 km (0.039 R)
• M3: 883,974 km (0.107 R)
• M4: 1,564,046 km (0.113 R)
• M5: 2,034,232 km (0.094 R)
• M6: 2,490,505 km (0.087 R)
• M7: 3,453,467 km (0.066 R)
• M8: 4,032,261 km (0.101 R)
• M9: 5,265,396 km (0.106 R)
• M10: 6,097,310 km (0.065 R)
• M11: 7,450,423 km (0.049 R)
• M12: 7,827,559 km (0.103 R)
• M13: 8,826,424 km (0.094 R)
• M14: 12,542,435 km (0.071 R)
• M15: 13,738,620 km (0.079 R)
• M16: 15,128,234 km (0.077 R)
• M17: 15,611,735 km (0.072 R)
• M18: 19,430,519 km (0.094 R)
• M19: 20,001,983 km (0.073 R)
• M20: 23,028,498 km (0.049 R)
• M21: 24,485,132 km (0.068 R)
• M22: 26,347,775 km (0.115 R)
• M23: 27,313,579 km (0.1 R)
• M24: 29,502,645 km (0.105 R)
• M25: 30,735,930 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 583.2

Radius: 6.5

Gravity: 13.8 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 7.14 AU - 9.2 AU

Year: 15319 Days

Day: 24 Hours

Environment

Temp: -235 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 69,430,683 km

• M1: 83,625 km (0.112 R)
• M2: 300,991 km (0.11 R)
• M3: 592,707 km (0.05 R)
• M4: 814,411 km (0.099 R)
• M5: 1,842,447 km (0.104 R)
• M6: 2,208,364 km (0.099 R)
• M7: 2,801,071 km (0.076 R)
• M8: 3,311,349 km (0.108 R)
• M9: 3,796,644 km (0.108 R)
• M10: 6,665,632 km (0.099 R)
• M11: 7,527,166 km (0.06 R)
• M12: 14,800,465 km (0.038 R)
• M13: 15,372,976 km (0.084 R)
• M14: 16,714,869 km (0.069 R)
• M15: 17,179,071 km (0.086 R)
• M16: 19,801,073 km (0.059 R)
• M17: 22,584,491 km (0.068 R)
• M18: 26,756,776 km (0.089 R)
• M19: 30,719,175 km (0.116 R)
• M20: 31,065,943 km (0.09 R)
• M21: 37,632,541 km (0.067 R)
• M22: 45,215,807 km (0.039 R)
• M23: 48,264,462 km (0.074 R)
• M24: 49,205,133 km (0.075 R)
• M25: 51,284,992 km (0.097 R)
• M26: 51,773,130 km (0.074 R)
• M27: 53,756,948 km (0.099 R)
• M28: 57,699,600 km (0.049 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 551.3

Radius: 5.4

Gravity: 18.91 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 6.74 AU - 10.58 AU

Year: 16718 Days

Day: 20.5 Hours

Environment

Temp: -234 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 69,430,683 km

• M1: 69,264 km (0.072 R)
• M2: 283,189 km (0.046 R)
• M3: 451,636 km (0.115 R)
• M4: 912,996 km (0.111 R)
• M5: 1,645,277 km (0.094 R)
• M6: 1,936,096 km (0.095 R)
• M7: 2,181,287 km (0.108 R)
• M8: 2,468,215 km (0.069 R)
• M9: 3,143,051 km (0.087 R)
• M10: 4,583,679 km (0.097 R)
• M11: 4,849,365 km (0.088 R)
• M12: 5,231,288 km (0.072 R)
• M13: 6,213,697 km (0.119 R)
• M14: 7,268,811 km (0.077 R)
• M15: 7,448,179 km (0.045 R)
• M16: 10,734,395 km (0.1 R)
• M17: 12,308,015 km (0.108 R)
• M18: 12,498,902 km (0.06 R)
• M19: 12,886,660 km (0.118 R)
• M20: 13,416,087 km (0.066 R)
• M21: 14,307,391 km (0.117 R)
• M22: 17,296,356 km (0.075 R)
• M23: 18,022,055 km (0.035 R)
• M24: 21,402,070 km (0.047 R)
• M25: 22,807,392 km (0.089 R)
• M26: 29,839,240 km (0.07 R)
• M27: 36,723,136 km (0.116 R)
• M28: 39,417,393 km (0.059 R)
• M29: 46,261,496 km (0.059 R)
• M30: 53,179,949 km (0.088 R)
• M31: 55,226,896 km (0.109 R)
• M32: 59,840,943 km (0.118 R)
• M33: 61,867,995 km (0.105 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 683.9

Radius: 6

Gravity: 19 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 7.87 AU - 9.95 AU

Year: 17447 Days

Day: 15.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 69,430,683 km

• M1: 76,445 km (0.061 R)
• M2: 337,942 km (0.115 R)
• M3: 604,824 km (0.115 R)
• M4: 1,224,608 km (0.066 R)
• M5: 2,612,727 km (0.068 R)
• M6: 3,022,775 km (0.091 R)
• M7: 3,256,895 km (0.052 R)
• M8: 3,673,825 km (0.057 R)
• M9: 5,213,037 km (0.086 R)
• M10: 6,479,383 km (0.084 R)
• M11: 7,321,469 km (0.049 R)
• M12: 7,601,965 km (0.048 R)
• M13: 12,986,591 km (0.033 R)
• M14: 13,817,907 km (0.118 R)
• M15: 26,069,673 km (0.068 R)
• M16: 26,944,521 km (0.097 R)
• M17: 30,280,554 km (0.105 R)
• M18: 34,399,881 km (0.071 R)
• M19: 37,897,180 km (0.12 R)
• M20: 41,920,615 km (0.114 R)
• M21: 43,120,539 km (0.1 R)
• M22: 43,576,214 km (0.067 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: 544 - 19,593 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit