🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 946.2

Radius: 9.8

Gravity: 9.85 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.64 AU - 0.68 AU

Year: 370 Days

Day: 8.6 Hours

Environment

Temp: -145 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 45,756,317 km

• M1: 121,922 km (0.082 R)
• M2: 479,760 km (0.111 R)
• M3: 1,046,437 km (0.116 R)
• M4: 1,357,451 km (0.067 R)
• M5: 1,868,328 km (0.106 R)
• M6: 3,072,591 km (0.103 R)
• M7: 3,551,304 km (0.111 R)
• M8: 4,822,736 km (0.085 R)
• M9: 5,372,508 km (0.065 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 228.4

Radius: 10

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.63 AU - 1.03 AU

Year: 522 Days

Day: 5.1 Hours

Environment

Temp: -166 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 45,756,317 km

• M1: 124,316 km (0.069 R)
• M2: 593,455 km (0.105 R)
• M3: 939,175 km (0.077 R)
• M4: 1,526,197 km (0.088 R)
• M5: 2,107,535 km (0.1 R)
• M6: 2,977,895 km (0.069 R)
• M7: 3,758,347 km (0.083 R)
• M8: 4,146,404 km (0.05 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 951.4

Radius: 14.1

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.82 AU - 0.9 AU

Year: 551 Days

Day: 5.1 Hours

Environment

Temp: -173 °C

Axial Tilt: 51.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 45,756,317 km

• M1: 175,329 km (0.101 R)
• M2: 620,532 km (0.081 R)
• M3: 1,070,672 km (0.038 R)
• M4: 1,525,150 km (0.114 R)
• M5: 2,004,312 km (0.096 R)
• M6: 2,736,594 km (0.104 R)
• M7: 3,482,638 km (0.075 R)
• M8: 4,019,096 km (0.048 R)
• M9: 5,418,285 km (0.12 R)
• M10: 5,950,704 km (0.09 R)
• M11: 6,417,749 km (0.077 R)
• M12: 7,078,672 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 143.5

Radius: 11.4

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.82 AU - 2.02 AU

Year: 1836 Days

Day: 14.6 Hours

Environment

Temp: -200 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 45,756,317 km

• M1: 141,819 km (0.097 R)
• M2: 510,428 km (0.12 R)
• M3: 939,774 km (0.081 R)
• M4: 1,648,419 km (0.099 R)
• M5: 2,187,121 km (0.117 R)
• M6: 2,571,737 km (0.052 R)
• M7: 3,796,495 km (0.055 R)
• M8: 4,589,663 km (0.114 R)
• M9: 5,357,100 km (0.098 R)
• M10: 5,781,958 km (0.109 R)
• M11: 7,285,566 km (0.113 R)
• M12: 8,203,798 km (0.064 R)
• M13: 8,743,248 km (0.092 R)
• M14: 9,197,277 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.9

Radius: 13.5

Gravity: 3.64 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 4.16 AU - 5.4 AU

Year: 7214 Days

Day: 6.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 45,756,317 km

• M1: 167,849 km (0.104 R)
• M2: 600,635 km (0.119 R)
• M3: 1,056,460 km (0.048 R)
• M4: 2,045,601 km (0.114 R)
• M5: 3,063,316 km (0.084 R)
• M6: 3,962,548 km (0.11 R)
• M7: 6,182,581 km (0.097 R)
• M8: 6,982,780 km (0.08 R)
• M9: 8,009,171 km (0.096 R)
• M10: 12,059,234 km (0.114 R)
• M11: 13,421,771 km (0.088 R)
• M12: 15,312,539 km (0.096 R)
• M13: 17,577,451 km (0.059 R)
• M14: 18,263,656 km (0.108 R)
• M15: 20,355,184 km (0.112 R)
• M16: 21,420,171 km (0.034 R)
• M17: 24,582,820 km (0.07 R)
• M18: 25,615,643 km (0.045 R)
• M19: 35,267,399 km (0.1 R)
• M20: 36,139,405 km (0.086 R)
• M21: 37,926,501 km (0.073 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 844.8

Radius: 3.1

Gravity: 87.91 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 6.28 AU - 6.68 AU

Year: 11386 Days

Day: 16.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 45,756,317 km

• M1: 158,723 km (0.042 R)
• M2: 304,132 km (0.115 R)
• M3: 852,259 km (0.084 R)
• M4: 956,379 km (0.113 R)
• M5: 1,789,191 km (0.113 R)
• M6: 2,201,333 km (0.112 R)
• M7: 2,399,101 km (0.108 R)
• M8: 4,070,857 km (0.069 R)
• M9: 4,399,225 km (0.058 R)
• M10: 8,519,599 km (0.078 R)
• M11: 9,205,655 km (0.114 R)
• M12: 9,357,347 km (0.066 R)
• M13: 12,016,299 km (0.094 R)
• M14: 12,136,875 km (0.079 R)
• M15: 16,068,307 km (0.099 R)
• M16: 16,288,216 km (0.109 R)
• M17: 20,770,767 km (0.11 R)
• M18: 21,119,180 km (0.05 R)
• M19: 23,292,089 km (0.108 R)
• M20: 23,668,029 km (0.051 R)
• M21: 25,212,926 km (0.075 R)
• M22: 25,509,878 km (0.113 R)
• M23: 26,516,522 km (0.058 R)
• M24: 29,039,939 km (0.116 R)
• M25: 29,475,418 km (0.061 R)
• M26: 30,583,340 km (0.077 R)
• M27: 31,833,828 km (0.068 R)
• M28: 35,788,897 km (0.057 R)
• M29: 36,163,939 km (0.115 R)
• M30: 38,338,643 km (0.095 R)
• M31: 41,554,698 km (0.079 R)
• M32: 43,369,619 km (0.056 R)
• M33: 43,511,438 km (0.117 R)
• M34: 51,000,158 km (0.098 R)
• M35: 52,112,568 km (0.074 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 510.3

Radius: 6.4

Gravity: 12.46 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 5.14 AU - 8.36 AU

Year: 12105 Days

Day: 23.5 Hours

Environment

Temp: -230 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 45,756,317 km

• M1: 79,586 km (0.071 R)
• M2: 348,264 km (0.039 R)
• M3: 719,117 km (0.089 R)
• M4: 935,735 km (0.056 R)
• M5: 1,396,795 km (0.11 R)
• M6: 1,740,122 km (0.12 R)
• M7: 2,192,207 km (0.115 R)
• M8: 3,304,617 km (0.102 R)
• M9: 3,862,168 km (0.1 R)
• M10: 4,107,658 km (0.091 R)
• M11: 5,360,391 km (0.075 R)
• M12: 6,019,818 km (0.089 R)
• M13: 8,779,450 km (0.081 R)
• M14: 12,400,467 km (0.118 R)
• M15: 14,053,523 km (0.108 R)
• M16: 18,015,174 km (0.115 R)
• M17: 23,643,195 km (0.074 R)
• M18: 28,356,127 km (0.074 R)
• M19: 28,869,547 km (0.116 R)
• M20: 32,303,715 km (0.115 R)
• M21: 34,933,796 km (0.112 R)
• M22: 36,120,555 km (0.068 R)
• M23: 39,078,105 km (0.081 R)
• M24: 40,875,673 km (0.113 R)
• M25: 43,947,516 km (0.114 R)
• M26: 47,457,232 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 779.7

Radius: 7.8

Gravity: 12.82 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 6.11 AU - 8.91 AU

Year: 14206 Days

Day: 20.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 45,756,317 km

• M1: 100,979 km (0.095 R)
• M2: 346,020 km (0.074 R)
• M3: 724,652 km (0.105 R)
• M4: 1,003,054 km (0.104 R)
• M5: 1,528,292 km (0.118 R)
• M6: 2,146,879 km (0.111 R)
• M7: 2,471,058 km (0.081 R)
• M8: 2,758,286 km (0.082 R)
• M9: 4,199,362 km (0.114 R)
• M10: 5,048,031 km (0.095 R)
• M11: 5,439,678 km (0.072 R)
• M12: 6,446,172 km (0.07 R)
• M13: 8,823,282 km (0.039 R)
• M14: 9,182,616 km (0.118 R)
• M15: 13,198,571 km (0.113 R)
• M16: 13,805,340 km (0.057 R)
• M17: 15,737,098 km (0.108 R)
• M18: 17,041,890 km (0.104 R)
• M19: 21,113,495 km (0.034 R)
• M20: 22,318,506 km (0.118 R)
• M21: 22,603,041 km (0.075 R)
• M22: 23,276,232 km (0.09 R)
• M23: 25,273,363 km (0.117 R)
• M24: 27,058,515 km (0.113 R)
• M25: 28,479,246 km (0.087 R)
• M26: 29,038,592 km (0.083 R)
• M27: 33,161,809 km (0.093 R)
• M28: 36,465,827 km (0.066 R)
• M29: 44,165,779 km (0.094 R)
• M30: 45,520,837 km (0.034 R)
• M31: 48,155,704 km (0.092 R)
• M32: 49,109,391 km (0.029 R)
• M33: 55,966,359 km (0.113 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 105.9

Radius: 5.8

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 8.15 AU - 12.99 AU

Year: 23720 Days

Day: 19.2 Hours

Environment

Temp: -237 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 45,756,317 km

• M1: 84,074 km (0.104 R)
• M2: 356,791 km (0.057 R)
• M3: 2,098,709 km (0.038 R)
• M4: 2,952,314 km (0.083 R)
• M5: 3,628,796 km (0.11 R)
• M6: 5,955,641 km (0.107 R)
• M7: 7,549,157 km (0.072 R)
• M8: 7,882,013 km (0.102 R)
• M9: 10,595,269 km (0.069 R)
• M10: 13,265,890 km (0.118 R)
• M11: 14,627,680 km (0.112 R)
• M12: 14,884,839 km (0.111 R)
• M13: 19,038,423 km (0.077 R)
• M14: 20,205,586 km (0.059 R)
• M15: 21,337,443 km (0.089 R)
• M16: 24,894,133 km (0.028 R)
• M17: 25,911,548 km (0.109 R)
• M18: 34,046,381 km (0.119 R)
• M19: 34,385,071 km (0.12 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: 358 - 15,836 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit