🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.7

Radius: 14.1

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.64 AU - 0.9 AU

Year: 451 Days

Day: 5.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 56,192,118 km

• M1: 175,478 km (0.086 R)
• M2: 764,296 km (0.076 R)
• M3: 1,396,795 km (0.094 R)
• M4: 1,961,677 km (0.119 R)
• M5: 2,451,760 km (0.075 R)
• M6: 3,286,815 km (0.063 R)
• M7: 4,725,946 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 539

Radius: 11

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.7 AU - 1.12 AU

Year: 579 Days

Day: 11.1 Hours

Environment

Temp: -168 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 56,192,118 km

• M1: 137,780 km (0.05 R)
• M2: 521,498 km (0.098 R)
• M3: 890,407 km (0.077 R)
• M4: 1,382,584 km (0.077 R)
• M5: 1,727,706 km (0.041 R)
• M6: 2,104,842 km (0.033 R)
• M7: 2,796,882 km (0.101 R)
• M8: 3,712,570 km (0.064 R)
• M9: 4,276,255 km (0.091 R)
• M10: 5,088,572 km (0.1 R)
• M11: 5,523,303 km (0.094 R)
• M12: 5,874,559 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 924.8

Radius: 13.4

Gravity: 5.15 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.85 AU - 1.21 AU

Year: 697 Days

Day: 14.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 56,192,118 km

• M1: 171,140 km (0.119 R)
• M2: 605,572 km (0.074 R)
• M3: 1,092,663 km (0.102 R)
• M4: 1,592,170 km (0.084 R)
• M5: 2,507,859 km (0.089 R)
• M6: 3,135,721 km (0.109 R)
• M7: 3,749,671 km (0.065 R)
• M8: 4,171,387 km (0.1 R)
• M9: 4,864,175 km (0.036 R)
• M10: 5,594,063 km (0.031 R)
• M11: 6,459,038 km (0.102 R)
• M12: 7,318,926 km (0.113 R)
• M13: 8,204,097 km (0.067 R)
• M14: 8,867,863 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 553.6

Radius: 11.4

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 1.15 AU - 1.29 AU

Year: 899 Days

Day: 9.7 Hours

Environment

Temp: -189 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 56,192,118 km

• M1: 141,819 km (0.116 R)
• M2: 621,729 km (0.113 R)
• M3: 1,022,501 km (0.114 R)
• M4: 1,388,418 km (0.069 R)
• M5: 2,232,599 km (0.052 R)
• M6: 2,913,718 km (0.104 R)
• M7: 3,296,987 km (0.049 R)
• M8: 6,917,256 km (0.099 R)
• M9: 7,604,957 km (0.083 R)
• M10: 8,566,572 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 262.8

Radius: 13.5

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 3.12 AU - 3.5 AU

Year: 4016 Days

Day: 5 Hours

Environment

Temp: -225 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 56,192,118 km

• M1: 167,849 km (0.093 R)
• M2: 772,075 km (0.111 R)
• M3: 1,361,490 km (0.109 R)
• M4: 1,801,458 km (0.094 R)
• M5: 2,311,586 km (0.087 R)
• M6: 2,871,382 km (0.114 R)
• M7: 3,397,517 km (0.092 R)
• M8: 5,569,978 km (0.106 R)
• M9: 6,696,150 km (0.068 R)
• M10: 7,875,131 km (0.104 R)
• M11: 8,613,247 km (0.097 R)
• M12: 10,989,759 km (0.086 R)
• M13: 12,245,035 km (0.079 R)
• M14: 12,972,828 km (0.075 R)
• M15: 13,911,555 km (0.099 R)
• M16: 14,656,851 km (0.119 R)
• M17: 15,974,809 km (0.083 R)
• M18: 17,370,258 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 307.6

Radius: 14.1

Gravity: 1.55 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 3.57 AU - 4.51 AU

Year: 5415 Days

Day: 12 Hours

Environment

Temp: -215 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 56,192,118 km

• M1: 175,777 km (0.087 R)
• M2: 1,421,629 km (0.117 R)
• M3: 2,073,426 km (0.081 R)
• M4: 2,547,353 km (0.092 R)
• M5: 3,579,428 km (0.106 R)
• M6: 4,030,167 km (0.108 R)
• M7: 4,850,412 km (0.116 R)
• M8: 6,916,508 km (0.118 R)
• M9: 9,671,203 km (0.107 R)
• M10: 10,636,109 km (0.065 R)
• M11: 11,099,414 km (0.098 R)
• M12: 11,931,477 km (0.11 R)
• M13: 14,320,855 km (0.044 R)
• M14: 15,467,223 km (0.089 R)
• M15: 16,283,279 km (0.11 R)
• M16: 17,416,035 km (0.109 R)
• M17: 18,539,963 km (0.062 R)
• M18: 19,150,771 km (0.112 R)
• M19: 23,312,435 km (0.037 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 839.6

Radius: 13.9

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 4.38 AU - 4.48 AU

Year: 6218 Days

Day: 12.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 56,192,118 km

• M1: 180,116 km (0.103 R)
• M2: 643,420 km (0.045 R)
• M3: 1,795,174 km (0.109 R)
• M4: 2,246,362 km (0.111 R)
• M5: 2,948,424 km (0.056 R)
• M6: 3,769,866 km (0.099 R)
• M7: 4,878,536 km (0.105 R)
• M8: 5,586,134 km (0.114 R)
• M9: 6,095,365 km (0.116 R)
• M10: 9,210,591 km (0.117 R)
• M11: 10,530,045 km (0.116 R)
• M12: 10,964,327 km (0.072 R)
• M13: 12,606,014 km (0.107 R)
• M14: 13,941,026 km (0.05 R)
• M15: 14,882,146 km (0.04 R)
• M16: 16,054,245 km (0.081 R)
• M17: 18,166,268 km (0.114 R)
• M18: 19,504,720 km (0.033 R)
• M19: 21,672,842 km (0.048 R)
• M20: 22,615,458 km (0.054 R)
• M21: 23,749,560 km (0.118 R)
• M22: 25,435,079 km (0.062 R)
• M23: 27,470,358 km (0.108 R)
• M24: 28,761,238 km (0.089 R)
• M25: 29,326,718 km (0.12 R)
• M26: 30,285,640 km (0.112 R)
• M27: 30,772,880 km (0.115 R)
• M28: 31,663,137 km (0.095 R)
• M29: 33,391,591 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 502.1

Radius: 7.9

Gravity: 8.05 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 5.3 AU - 6.66 AU

Year: 9752 Days

Day: 19.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 45.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 56,192,118 km

• M1: 98,435 km (0.057 R)
• M2: 600,785 km (0.084 R)
• M3: 1,885,232 km (0.052 R)
• M4: 3,194,962 km (0.088 R)
• M5: 4,279,546 km (0.034 R)
• M6: 4,729,088 km (0.106 R)
• M7: 6,446,621 km (0.077 R)
• M8: 9,581,295 km (0.039 R)
• M9: 10,009,444 km (0.1 R)
• M10: 10,600,056 km (0.111 R)
• M11: 12,344,068 km (0.102 R)
• M12: 13,080,838 km (0.1 R)
• M13: 22,135,099 km (0.052 R)
• M14: 29,092,448 km (0.078 R)
• M15: 31,527,003 km (0.114 R)
• M16: 32,580,471 km (0.112 R)
• M17: 32,901,060 km (0.09 R)
• M18: 33,548,370 km (0.063 R)
• M19: 35,881,348 km (0.1 R)
• M20: 37,495,360 km (0.098 R)
• M21: 40,743,878 km (0.099 R)
• M22: 41,615,584 km (0.046 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 543.9

Radius: 6.5

Gravity: 12.87 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 8.98 AU - 11.2 AU

Year: 21373 Days

Day: 23.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 56,192,118 km

• M1: 100,081 km (0.064 R)
• M2: 360,082 km (0.107 R)
• M3: 771,925 km (0.105 R)
• M4: 1,097,749 km (0.108 R)
• M5: 1,610,720 km (0.089 R)
• M6: 1,856,510 km (0.031 R)
• M7: 3,687,588 km (0.049 R)
• M8: 4,117,532 km (0.093 R)
• M9: 4,377,832 km (0.079 R)
• M10: 4,789,077 km (0.077 R)
• M11: 5,889,070 km (0.044 R)
• M12: 6,874,321 km (0.088 R)
• M13: 7,102,309 km (0.1 R)
• M14: 7,865,856 km (0.078 R)
• M15: 9,611,663 km (0.077 R)
• M16: 10,070,779 km (0.087 R)
• M17: 10,365,188 km (0.117 R)
• M18: 12,320,432 km (0.089 R)
• M19: 13,561,795 km (0.077 R)
• M20: 14,212,845 km (0.079 R)
• M21: 15,266,762 km (0.096 R)
• M22: 16,943,754 km (0.085 R)
• M23: 18,214,289 km (0.093 R)
• M24: 19,365,744 km (0.071 R)
• M25: 20,283,826 km (0.087 R)
• M26: 25,422,213 km (0.101 R)
• M27: 26,410,906 km (0.116 R)
• M28: 26,746,005 km (0.078 R)
• M29: 27,311,036 km (0.068 R)
• M30: 27,999,336 km (0.069 R)
• M31: 33,275,054 km (0.084 R)
• M32: 45,259,489 km (0.09 R)
• M33: 55,153,294 km (0.119 R)
• M34: 60,213,741 km (0.094 R)
• M35: 60,794,331 km (0.048 R)
• M36: 62,955,422 km (0.1 R)
• M37: 70,385,798 km (0.049 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 218.1

Radius: 6.7

Gravity: 4.86 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 8.46 AU - 12.42 AU

Year: 22495 Days

Day: 23.4 Hours

Environment

Temp: -239 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 56,192,118 km

• M1: 84,523 km (0.093 R)
• M2: 344,673 km (0.115 R)
• M3: 648,806 km (0.109 R)
• M4: 1,224,907 km (0.096 R)
• M5: 1,738,776 km (0.07 R)
• M6: 4,210,731 km (0.088 R)
• M7: 4,669,997 km (0.119 R)
• M8: 5,333,762 km (0.096 R)
• M9: 6,725,023 km (0.117 R)
• M10: 7,096,923 km (0.102 R)
• M11: 7,395,670 km (0.047 R)
• M12: 12,142,261 km (0.116 R)
• M13: 14,314,571 km (0.057 R)
• M14: 16,068,158 km (0.098 R)
• M15: 18,117,798 km (0.039 R)
• M16: 18,919,194 km (0.069 R)
• M17: 19,328,643 km (0.097 R)
• M18: 25,499,705 km (0.095 R)
• M19: 28,275,793 km (0.09 R)
• M20: 39,372,215 km (0.1 R)
• M21: 52,408,921 km (0.027 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: 190 - 20,110 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit