🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.9

Radius: 10.2

Gravity: 6.24 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.74 AU - 1.24 AU

Year: 657 Days

Day: 6.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,045,498 km

• M1: 128,205 km (0.047 R)
• M2: 563,685 km (0.119 R)
• M3: 1,597,406 km (0.104 R)
• M4: 2,767,860 km (0.041 R)
• M5: 3,717,357 km (0.094 R)
• M6: 4,237,060 km (0.056 R)
• M7: 5,750,542 km (0.061 R)
• M8: 7,417,960 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 805.6

Radius: 10.3

Gravity: 7.59 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.5 AU - 1.84 AU

Year: 1439 Days

Day: 13.9 Hours

Environment

Temp: -202 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,045,498 km

• M1: 137,480 km (0.063 R)
• M2: 627,264 km (0.036 R)
• M3: 1,494,483 km (0.087 R)
• M4: 1,975,739 km (0.109 R)
• M5: 2,758,884 km (0.086 R)
• M6: 3,161,452 km (0.058 R)
• M7: 5,352,462 km (0.097 R)
• M8: 5,959,082 km (0.095 R)
• M9: 6,437,496 km (0.106 R)
• M10: 7,202,988 km (0.119 R)
• M11: 7,690,827 km (0.091 R)
• M12: 8,793,064 km (0.079 R)
• M13: 9,162,122 km (0.045 R)
• M14: 11,782,627 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382.2

Radius: 13

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 1.62 AU - 2.18 AU

Year: 1746 Days

Day: 9.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,045,498 km

• M1: 162,463 km (0.109 R)
• M2: 813,663 km (0.119 R)
• M3: 1,219,522 km (0.108 R)
• M4: 3,075,583 km (0.07 R)
• M5: 3,788,566 km (0.064 R)
• M6: 4,246,336 km (0.092 R)
• M7: 4,665,509 km (0.12 R)
• M8: 5,213,187 km (0.069 R)
• M9: 5,803,649 km (0.089 R)
• M10: 6,252,443 km (0.09 R)
• M11: 8,510,324 km (0.089 R)
• M12: 9,330,868 km (0.103 R)
• M13: 10,626,984 km (0.084 R)
• M14: 11,129,932 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966.2

Radius: 13.1

Gravity: 5.63 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 2.54 AU - 2.9 AU

Year: 2991 Days

Day: 14.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 55,045,498 km

• M1: 162,912 km (0.091 R)
• M2: 592,408 km (0.038 R)
• M3: 1,222,364 km (0.088 R)
• M4: 1,679,834 km (0.062 R)
• M5: 2,225,119 km (0.099 R)
• M6: 3,059,426 km (0.106 R)
• M7: 4,201,606 km (0.109 R)
• M8: 4,655,785 km (0.101 R)
• M9: 5,993,339 km (0.085 R)
• M10: 6,541,466 km (0.085 R)
• M11: 7,059,972 km (0.108 R)
• M12: 8,566,722 km (0.097 R)
• M13: 9,339,096 km (0.056 R)
• M14: 10,197,638 km (0.099 R)
• M15: 10,646,282 km (0.071 R)
• M16: 13,621,634 km (0.119 R)
• M17: 14,418,991 km (0.05 R)
• M18: 15,089,488 km (0.071 R)
• M19: 15,512,402 km (0.088 R)
• M20: 16,106,904 km (0.092 R)
• M21: 16,604,466 km (0.058 R)
• M22: 20,252,859 km (0.096 R)
• M23: 21,690,345 km (0.078 R)
• M24: 23,972,909 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 257.2

Radius: 9.2

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 2.93 AU - 3.03 AU

Year: 3430 Days

Day: 8.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 55,045,498 km

• M1: 116,088 km (0.1 R)
• M2: 442,062 km (0.117 R)
• M3: 873,801 km (0.032 R)
• M4: 1,291,478 km (0.072 R)
• M5: 3,347,701 km (0.082 R)
• M6: 3,749,970 km (0.075 R)
• M7: 4,403,713 km (0.057 R)
• M8: 4,779,502 km (0.105 R)
• M9: 8,539,645 km (0.119 R)
• M10: 8,993,226 km (0.114 R)
• M11: 9,326,978 km (0.106 R)
• M12: 11,274,593 km (0.116 R)
• M13: 11,900,211 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 880.5

Radius: 8.4

Gravity: 12.48 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 3.81 AU - 4.29 AU

Year: 5435 Days

Day: 8.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 55,045,498 km

• M1: 104,419 km (0.09 R)
• M2: 377,136 km (0.088 R)
• M3: 645,216 km (0.09 R)
• M4: 992,881 km (0.073 R)
• M5: 1,665,772 km (0.109 R)
• M6: 3,364,157 km (0.036 R)
• M7: 5,433,395 km (0.117 R)
• M8: 5,924,973 km (0.089 R)
• M9: 6,247,057 km (0.085 R)
• M10: 7,320,721 km (0.113 R)
• M11: 9,049,175 km (0.111 R)
• M12: 15,235,646 km (0.112 R)
• M13: 15,719,146 km (0.066 R)
• M14: 20,178,958 km (0.077 R)
• M15: 20,835,842 km (0.105 R)
• M16: 22,970,903 km (0.105 R)
• M17: 23,287,452 km (0.062 R)
• M18: 25,080,532 km (0.05 R)
• M19: 28,209,970 km (0.073 R)
• M20: 31,009,095 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 939.6

Radius: 11.1

Gravity: 7.63 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 3.37 AU - 5.13 AU

Year: 5843 Days

Day: 14.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 55,045,498 km

• M1: 148,700 km (0.109 R)
• M2: 571,763 km (0.105 R)
• M3: 969,693 km (0.086 R)
• M4: 1,341,893 km (0.103 R)
• M5: 1,811,181 km (0.117 R)
• M6: 3,086,503 km (0.042 R)
• M7: 3,585,263 km (0.073 R)
• M8: 4,188,142 km (0.073 R)
• M9: 5,412,601 km (0.087 R)
• M10: 6,375,412 km (0.08 R)
• M11: 7,524,175 km (0.094 R)
• M12: 8,228,481 km (0.082 R)
• M13: 11,191,716 km (0.099 R)
• M14: 12,320,282 km (0.112 R)
• M15: 13,979,323 km (0.119 R)
• M16: 14,564,101 km (0.097 R)
• M17: 14,983,124 km (0.111 R)
• M18: 16,675,076 km (0.1 R)
• M19: 17,803,792 km (0.069 R)
• M20: 20,584,667 km (0.101 R)
• M21: 20,960,906 km (0.11 R)
• M22: 21,341,782 km (0.119 R)
• M23: 23,397,556 km (0.109 R)
• M24: 26,545,993 km (0.112 R)
• M25: 36,888,741 km (0.104 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 147.3

Radius: 10.6

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 3.62 AU - 4.92 AU

Year: 5884 Days

Day: 14 Hours

Environment

Temp: -228 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,045,498 km

• M1: 144,512 km (0.119 R)
• M2: 864,975 km (0.106 R)
• M3: 1,366,427 km (0.072 R)
• M4: 2,981,186 km (0.084 R)
• M5: 4,678,823 km (0.119 R)
• M6: 6,320,211 km (0.092 R)
• M7: 7,062,067 km (0.076 R)
• M8: 8,890,901 km (0.093 R)
• M9: 11,217,596 km (0.052 R)
• M10: 12,005,229 km (0.109 R)
• M11: 14,064,593 km (0.115 R)
• M12: 18,699,135 km (0.082 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 817.9

Radius: 3.5

Gravity: 66.77 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 6.27 AU - 7.83 AU

Year: 12483 Days

Day: 19.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 55,045,498 km

• M1: 43,533 km (0.03 R)
• M2: 254,466 km (0.054 R)
• M3: 435,031 km (0.111 R)
• M4: 779,106 km (0.11 R)
• M5: 1,392,906 km (0.034 R)
• M6: 2,441,587 km (0.057 R)
• M7: 4,193,528 km (0.062 R)
• M8: 4,565,877 km (0.102 R)
• M9: 5,234,729 km (0.046 R)
• M10: 5,928,564 km (0.11 R)
• M11: 6,722,779 km (0.111 R)
• M12: 8,326,767 km (0.092 R)
• M13: 8,963,755 km (0.087 R)
• M14: 9,579,799 km (0.054 R)
• M15: 10,444,624 km (0.05 R)
• M16: 11,126,491 km (0.11 R)
• M17: 11,360,163 km (0.113 R)
• M18: 12,019,890 km (0.119 R)
• M19: 16,296,594 km (0.087 R)
• M20: 17,367,864 km (0.097 R)
• M21: 18,080,847 km (0.086 R)
• M22: 18,895,557 km (0.069 R)
• M23: 20,249,717 km (0.075 R)
• M24: 22,400,187 km (0.084 R)
• M25: 23,818,823 km (0.078 R)
• M26: 30,318,851 km (0.037 R)
• M27: 33,122,614 km (0.11 R)
• M28: 36,349,739 km (0.093 R)
• M29: 36,993,309 km (0.116 R)
• M30: 39,916,153 km (0.055 R)
• M31: 40,189,318 km (0.09 R)
• M32: 41,015,996 km (0.112 R)
• M33: 41,433,673 km (0.12 R)
• M34: 48,973,556 km (0.084 R)
• M35: 50,074,746 km (0.057 R)
• M36: 51,676,490 km (0.078 R)
• M37: 57,377,515 km (0.094 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 513

Radius: 5.8

Gravity: 15.25 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 7.11 AU - 8.27 AU

Year: 14221 Days

Day: 21.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 55,045,498 km

• M1: 72,106 km (0.116 R)
• M2: 332,855 km (0.066 R)
• M3: 518,506 km (0.1 R)
• M4: 1,358,199 km (0.069 R)
• M5: 1,725,761 km (0.064 R)
• M6: 2,176,051 km (0.055 R)
• M7: 2,531,645 km (0.115 R)
• M8: 2,767,411 km (0.04 R)
• M9: 3,233,857 km (0.109 R)
• M10: 3,460,199 km (0.086 R)
• M11: 3,944,746 km (0.095 R)
• M12: 4,691,389 km (0.088 R)
• M13: 5,457,929 km (0.095 R)
• M14: 5,707,009 km (0.101 R)
• M15: 9,830,076 km (0.079 R)
• M16: 10,468,709 km (0.079 R)
• M17: 12,488,729 km (0.067 R)
• M18: 14,348,381 km (0.037 R)
• M19: 14,892,169 km (0.031 R)
• M20: 15,099,661 km (0.094 R)
• M21: 16,680,163 km (0.053 R)
• M22: 18,447,213 km (0.107 R)
• M23: 25,760,604 km (0.078 R)
• M24: 27,902,995 km (0.092 R)
• M25: 28,749,569 km (0.12 R)
• M26: 28,963,793 km (0.071 R)
• M27: 35,160,436 km (0.076 R)
• M28: 40,281,471 km (0.059 R)
• M29: 41,772,213 km (0.101 R)
• M30: 42,461,860 km (0.061 R)
• M31: 44,290,394 km (0.073 R)
• M32: 50,868,063 km (0.074 R)
• M33: 54,552,210 km (0.101 R)
• M34: 54,880,727 km (0.095 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 186 - 15,748 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit