🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 310.4

Radius: 14.5

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.55 AU - 0.59 AU

Year: 302 Days

Day: 6.5 Hours

Environment

Temp: -140 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 75,756,974 km

• M1: 180,265 km (0.109 R)
• M2: 769,980 km (0.101 R)
• M3: 1,261,708 km (0.119 R)
• M4: 1,815,819 km (0.082 R)
• M5: 2,294,233 km (0.071 R)
• M6: 2,831,738 km (0.105 R)
• M7: 3,553,997 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 728.3

Radius: 8.3

Gravity: 10.57 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.74 AU - 0.84 AU

Year: 494 Days

Day: 12.3 Hours

Environment

Temp: -163 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 75,756,974 km

• M1: 104,569 km (0.097 R)
• M2: 403,017 km (0.097 R)
• M3: 750,533 km (0.052 R)
• M4: 1,265,748 km (0.117 R)
• M5: 2,026,004 km (0.102 R)
• M6: 2,491,553 km (0.075 R)
• M7: 3,559,532 km (0.048 R)
• M8: 3,848,405 km (0.052 R)
• M9: 4,905,913 km (0.057 R)
• M10: 5,181,771 km (0.103 R)
• M11: 5,693,695 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 544.6

Radius: 12.9

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.07 AU - 1.15 AU

Year: 822 Days

Day: 13.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 75,756,974 km

• M1: 160,369 km (0.115 R)
• M2: 567,425 km (0.11 R)
• M3: 1,082,490 km (0.093 R)
• M4: 1,817,465 km (0.07 R)
• M5: 3,350,693 km (0.069 R)
• M6: 3,803,825 km (0.102 R)
• M7: 5,887,723 km (0.059 R)
• M8: 7,242,931 km (0.106 R)
• M9: 7,652,679 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 560.4

Radius: 13.5

Gravity: 3.07 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.34 AU - 2.14 AU

Year: 1613 Days

Day: 8.5 Hours

Environment

Temp: -187 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 75,756,974 km

• M1: 167,849 km (0.063 R)
• M2: 593,754 km (0.088 R)
• M3: 1,026,541 km (0.049 R)
• M4: 1,739,674 km (0.114 R)
• M5: 2,483,923 km (0.112 R)
• M6: 3,249,116 km (0.088 R)
• M7: 4,256,359 km (0.06 R)
• M8: 5,023,496 km (0.103 R)
• M9: 6,133,363 km (0.032 R)
• M10: 8,865,918 km (0.105 R)
• M11: 11,028,804 km (0.071 R)
• M12: 11,665,343 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383

Radius: 8.3

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 2.74 AU - 3.84 AU

Year: 4195 Days

Day: 13.1 Hours

Environment

Temp: -212 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 75,756,974 km

• M1: 103,223 km (0.087 R)
• M2: 431,141 km (0.068 R)
• M3: 859,290 km (0.11 R)
• M4: 1,830,031 km (0.042 R)
• M5: 2,839,816 km (0.028 R)
• M6: 3,326,757 km (0.116 R)
• M7: 3,609,946 km (0.087 R)
• M8: 4,075,644 km (0.095 R)
• M9: 4,512,620 km (0.082 R)
• M10: 4,836,798 km (0.072 R)
• M11: 5,301,599 km (0.106 R)
• M12: 7,401,654 km (0.069 R)
• M13: 7,919,562 km (0.049 R)
• M14: 9,469,396 km (0.106 R)
• M15: 9,809,731 km (0.074 R)
• M16: 10,395,107 km (0.103 R)
• M17: 12,026,023 km (0.083 R)
• M18: 13,486,398 km (0.101 R)
• M19: 13,966,008 km (0.096 R)
• M20: 15,682,195 km (0.098 R)
• M21: 16,920,118 km (0.095 R)
• M22: 17,591,214 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 553.2

Radius: 12.1

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 3.22 AU - 3.42 AU

Year: 4252 Days

Day: 12.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 75,756,974 km

• M1: 151,692 km (0.055 R)
• M2: 561,590 km (0.108 R)
• M3: 1,110,764 km (0.051 R)
• M4: 1,969,905 km (0.088 R)
• M5: 2,839,517 km (0.11 R)
• M6: 3,267,965 km (0.099 R)
• M7: 4,256,957 km (0.098 R)
• M8: 4,846,223 km (0.099 R)
• M9: 5,303,544 km (0.055 R)
• M10: 6,072,626 km (0.116 R)
• M11: 6,727,865 km (0.088 R)
• M12: 9,911,158 km (0.062 R)
• M13: 10,905,834 km (0.112 R)
• M14: 11,829,751 km (0.105 R)
• M15: 12,427,394 km (0.118 R)
• M16: 12,805,129 km (0.07 R)
• M17: 14,600,902 km (0.108 R)
• M18: 16,558,988 km (0.104 R)
• M19: 20,073,042 km (0.083 R)
• M20: 22,908,670 km (0.063 R)
• M21: 23,983,082 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 927

Radius: 12.2

Gravity: 6.23 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 4.09 AU - 5.33 AU

Year: 7185 Days

Day: 11.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 75,756,974 km

• M1: 169,644 km (0.071 R)
• M2: 660,624 km (0.104 R)
• M3: 1,082,041 km (0.037 R)
• M4: 2,646,386 km (0.111 R)
• M5: 4,868,064 km (0.063 R)
• M6: 5,674,995 km (0.088 R)
• M7: 6,110,774 km (0.108 R)
• M8: 6,641,547 km (0.109 R)
• M9: 7,202,838 km (0.041 R)
• M10: 8,811,763 km (0.096 R)
• M11: 9,214,780 km (0.038 R)
• M12: 9,961,872 km (0.06 R)
• M13: 11,157,757 km (0.047 R)
• M14: 11,898,416 km (0.06 R)
• M15: 17,959,823 km (0.088 R)
• M16: 18,682,680 km (0.11 R)
• M17: 20,888,949 km (0.104 R)
• M18: 24,736,606 km (0.113 R)
• M19: 27,867,690 km (0.103 R)
• M20: 29,828,020 km (0.089 R)
• M21: 31,565,300 km (0.105 R)
• M22: 38,473,880 km (0.1 R)
• M23: 42,152,491 km (0.055 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 766

Radius: 5.9

Gravity: 22.01 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 8.11 AU - 9.77 AU

Year: 18789 Days

Day: 23.3 Hours

Environment

Temp: -242 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 75,756,974 km

• M1: 84,672 km (0.113 R)
• M2: 366,216 km (0.085 R)
• M3: 1,270,236 km (0.088 R)
• M4: 1,699,432 km (0.088 R)
• M5: 2,241,874 km (0.031 R)
• M6: 3,374,180 km (0.103 R)
• M7: 3,814,447 km (0.099 R)
• M8: 4,494,070 km (0.088 R)
• M9: 6,217,587 km (0.118 R)
• M10: 7,108,891 km (0.076 R)
• M11: 7,344,507 km (0.116 R)
• M12: 7,880,965 km (0.091 R)
• M13: 8,654,386 km (0.112 R)
• M14: 8,977,518 km (0.103 R)
• M15: 9,364,528 km (0.102 R)
• M16: 10,172,057 km (0.054 R)
• M17: 12,324,920 km (0.096 R)
• M18: 13,081,885 km (0.119 R)
• M19: 18,462,322 km (0.113 R)
• M20: 19,088,090 km (0.083 R)
• M21: 20,666,647 km (0.099 R)
• M22: 23,765,866 km (0.115 R)
• M23: 31,494,241 km (0.086 R)
• M24: 32,774,799 km (0.078 R)
• M25: 34,356,946 km (0.102 R)
• M26: 40,743,279 km (0.097 R)
• M27: 45,737,155 km (0.11 R)
• M28: 51,473,935 km (0.117 R)
• M29: 59,779,309 km (0.113 R)
• M30: 66,407,542 km (0.092 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 288 - 15,062 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit