🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.4

Radius: 13.3

Gravity: 4.89 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.53 AU - 0.55 AU

Year: 269 Days

Day: 13.1 Hours

Environment

Temp: -150 °C

Axial Tilt: 49 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 81,709,080 km

• M1: 165,455 km (0.098 R)
• M2: 619,485 km (0.118 R)
• M3: 1,120,039 km (0.084 R)
• M4: 1,588,580 km (0.036 R)
• M5: 2,134,911 km (0.111 R)
• M6: 2,657,307 km (0.1 R)
• M7: 3,079,173 km (0.08 R)
• M8: 3,762,536 km (0.049 R)
• M9: 4,349,408 km (0.068 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 413.2

Radius: 9.4

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.09 AU - 1.21 AU

Year: 836 Days

Day: 7.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 81,709,080 km

• M1: 117,135 km (0.094 R)
• M2: 446,849 km (0.112 R)
• M3: 812,167 km (0.073 R)
• M4: 1,117,047 km (0.119 R)
• M5: 1,582,446 km (0.074 R)
• M6: 2,290,343 km (0.074 R)
• M7: 2,940,795 km (0.046 R)
• M8: 3,322,569 km (0.041 R)
• M9: 4,067,117 km (0.109 R)
• M10: 5,071,817 km (0.116 R)
• M11: 6,194,249 km (0.1 R)
• M12: 6,720,086 km (0.11 R)
• M13: 7,541,977 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 164.8

Radius: 14

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 1.1 AU - 1.68 AU

Year: 1112 Days

Day: 6.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 81,709,080 km

• M1: 174,132 km (0.069 R)
• M2: 617,091 km (0.098 R)
• M3: 1,086,380 km (0.083 R)
• M4: 1,546,842 km (0.059 R)
• M5: 2,323,853 km (0.056 R)
• M6: 2,907,285 km (0.1 R)
• M7: 4,521,895 km (0.051 R)
• M8: 4,990,136 km (0.084 R)
• M9: 5,525,397 km (0.031 R)
• M10: 6,043,455 km (0.101 R)
• M11: 6,535,482 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 498

Radius: 11.7

Gravity: 3.64 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 1.63 AU - 2.01 AU

Year: 1665 Days

Day: 12.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 81,709,080 km

• M1: 148,850 km (0.115 R)
• M2: 588,368 km (0.054 R)
• M3: 1,171,202 km (0.112 R)
• M4: 1,907,672 km (0.092 R)
• M5: 2,291,839 km (0.117 R)
• M6: 2,715,052 km (0.11 R)
• M7: 4,589,363 km (0.072 R)
• M8: 5,122,829 km (0.101 R)
• M9: 6,362,098 km (0.042 R)
• M10: 7,602,115 km (0.094 R)
• M11: 9,425,115 km (0.036 R)
• M12: 10,724,223 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 115.1

Radius: 14.7

Gravity: 0.53 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 3.75 AU - 3.87 AU

Year: 5044 Days

Day: 11.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 81,709,080 km

• M1: 185,501 km (0.091 R)
• M2: 1,078,152 km (0.062 R)
• M3: 1,633,758 km (0.105 R)
• M4: 2,707,123 km (0.098 R)
• M5: 3,252,856 km (0.104 R)
• M6: 3,890,293 km (0.058 R)
• M7: 4,948,698 km (0.074 R)
• M8: 5,511,186 km (0.065 R)
• M9: 11,751,661 km (0.065 R)
• M10: 12,429,638 km (0.12 R)
• M11: 14,395,953 km (0.027 R)
• M12: 16,122,163 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 306.5

Radius: 13.8

Gravity: 1.61 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 3.8 AU - 4.34 AU

Year: 5569 Days

Day: 13.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 81,709,080 km

• M1: 172,486 km (0.095 R)
• M2: 736,171 km (0.066 R)
• M3: 1,502,711 km (0.045 R)
• M4: 2,214,198 km (0.067 R)
• M5: 4,384,714 km (0.094 R)
• M6: 4,881,229 km (0.103 R)
• M7: 7,517,592 km (0.118 R)
• M8: 9,680,179 km (0.054 R)
• M9: 11,075,628 km (0.068 R)
• M10: 13,268,733 km (0.1 R)
• M11: 14,519,221 km (0.117 R)
• M12: 17,780,605 km (0.077 R)
• M13: 19,237,239 km (0.093 R)
• M14: 20,058,681 km (0.071 R)
• M15: 20,771,964 km (0.069 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 500.3

Radius: 11.2

Gravity: 3.99 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 4.07 AU - 5.15 AU

Year: 6713 Days

Day: 7.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 81,709,080 km

• M1: 139,276 km (0.1 R)
• M2: 514,617 km (0.045 R)
• M3: 878,439 km (0.069 R)
• M4: 1,260,212 km (0.071 R)
• M5: 2,154,957 km (0.059 R)
• M6: 2,546,305 km (0.118 R)
• M7: 3,648,991 km (0.056 R)
• M8: 4,667,154 km (0.106 R)
• M9: 5,073,612 km (0.111 R)
• M10: 6,178,542 km (0.108 R)
• M11: 6,942,388 km (0.077 R)
• M12: 7,583,116 km (0.115 R)
• M13: 10,593,624 km (0.119 R)
• M14: 12,389,097 km (0.11 R)
• M15: 13,494,177 km (0.09 R)
• M16: 13,876,698 km (0.12 R)
• M17: 15,243,724 km (0.043 R)
• M18: 16,388,148 km (0.109 R)
• M19: 17,267,484 km (0.068 R)
• M20: 21,028,524 km (0.099 R)
• M21: 22,217,677 km (0.084 R)
• M22: 23,687,327 km (0.094 R)
• M23: 24,084,659 km (0.055 R)
• M24: 24,729,725 km (0.116 R)
• M25: 29,755,166 km (0.107 R)
• M26: 31,923,737 km (0.03 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 748.6

Radius: 14.5

Gravity: 3.56 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 4.17 AU - 6.01 AU

Year: 7789 Days

Day: 8.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 81,709,080 km

• M1: 180,415 km (0.105 R)
• M2: 1,635,404 km (0.028 R)
• M3: 2,220,631 km (0.101 R)
• M4: 3,154,720 km (0.071 R)
• M5: 3,822,824 km (0.092 R)
• M6: 5,351,116 km (0.087 R)
• M7: 6,202,178 km (0.066 R)
• M8: 7,968,630 km (0.066 R)
• M9: 8,814,456 km (0.086 R)
• M10: 9,304,688 km (0.087 R)
• M11: 10,146,476 km (0.115 R)
• M12: 11,399,208 km (0.092 R)
• M13: 13,093,105 km (0.091 R)
• M14: 16,303,026 km (0.109 R)
• M15: 17,596,749 km (0.12 R)
• M16: 22,051,624 km (0.106 R)
• M17: 35,973,052 km (0.096 R)
• M18: 40,072,183 km (0.116 R)
• M19: 41,051,152 km (0.098 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 279.9

Radius: 5.3

Gravity: 9.96 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 7.09 AU - 9.91 AU

Year: 16808 Days

Day: 17.8 Hours

Environment

Temp: -241 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 81,709,080 km

• M1: 66,122 km (0.099 R)
• M2: 353,949 km (0.12 R)
• M3: 1,303,297 km (0.107 R)
• M4: 1,504,805 km (0.073 R)
• M5: 2,428,422 km (0.08 R)
• M6: 3,451,522 km (0.089 R)
• M7: 4,227,935 km (0.09 R)
• M8: 4,520,997 km (0.063 R)
• M9: 5,082,438 km (0.101 R)
• M10: 5,312,968 km (0.066 R)
• M11: 6,156,551 km (0.056 R)
• M12: 6,610,281 km (0.059 R)
• M13: 7,126,843 km (0.074 R)
• M14: 7,798,836 km (0.046 R)
• M15: 9,562,894 km (0.088 R)
• M16: 10,274,831 km (0.037 R)
• M17: 10,697,145 km (0.089 R)
• M18: 12,682,309 km (0.119 R)
• M19: 12,923,760 km (0.093 R)
• M20: 13,540,851 km (0.028 R)
• M21: 15,101,755 km (0.086 R)
• M22: 15,441,343 km (0.068 R)
• M23: 17,216,471 km (0.099 R)
• M24: 17,661,973 km (0.098 R)
• M25: 20,414,873 km (0.114 R)
• M26: 22,371,913 km (0.049 R)
• M27: 24,080,171 km (0.059 R)
• M28: 27,753,696 km (0.061 R)
• M29: 29,935,880 km (0.032 R)
• M30: 32,229,814 km (0.084 R)
• M31: 32,906,146 km (0.065 R)
• M32: 33,591,903 km (0.118 R)
• M33: 35,946,573 km (0.113 R)
• M34: 41,113,085 km (0.083 R)
• M35: 41,376,976 km (0.101 R)
• M36: 44,217,241 km (0.088 R)
• M37: 47,764,805 km (0.097 R)
• M38: 48,643,543 km (0.109 R)
• M39: 50,282,537 km (0.103 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 619.3

Radius: 7.3

Gravity: 11.62 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 9.33 AU - 11.87 AU

Year: 23407 Days

Day: 18.4 Hours

Environment

Temp: -236 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 81,709,080 km

• M1: 90,806 km (0.077 R)
• M2: 590,912 km (0.044 R)
• M3: 924,814 km (0.105 R)
• M4: 1,366,128 km (0.106 R)
• M5: 2,122,794 km (0.051 R)
• M6: 2,765,317 km (0.06 R)
• M7: 3,590,199 km (0.075 R)
• M8: 4,059,637 km (0.109 R)
• M9: 4,464,150 km (0.115 R)
• M10: 10,790,644 km (0.11 R)
• M11: 12,588,960 km (0.096 R)
• M12: 14,889,925 km (0.077 R)
• M13: 17,283,192 km (0.101 R)
• M14: 17,632,353 km (0.082 R)
• M15: 22,505,204 km (0.097 R)
• M16: 24,638,620 km (0.071 R)
• M17: 27,846,596 km (0.112 R)
• M18: 29,674,682 km (0.088 R)
• M19: 37,935,926 km (0.09 R)
• M20: 42,985,901 km (0.1 R)
• M21: 45,257,395 km (0.07 R)
• M22: 47,949,858 km (0.095 R)
• M23: 52,915,310 km (0.086 R)
• M24: 55,901,134 km (0.107 R)
• M25: 71,178,966 km (0.112 R)
• M26: 80,490,985 km (0.088 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 515 - 13,291 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit