🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 215

Radius: 8.9

Gravity: 2.71 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.53 AU - 0.81 AU

Year: 372 Days

Day: 10.4 Hours

Environment

Temp: -165 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 19,779,887 km

• M1: 110,702 km (0.106 R)
• M2: 392,395 km (0.08 R)
• M3: 677,230 km (0.1 R)
• M4: 1,046,288 km (0.071 R)
• M5: 1,364,931 km (0.119 R)
• M6: 1,832,574 km (0.09 R)
• M7: 2,256,684 km (0.081 R)
• M8: 2,642,048 km (0.114 R)
• M9: 3,146,941 km (0.06 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 238.4

Radius: 12.7

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.93 AU - 1.21 AU

Year: 751 Days

Day: 8.1 Hours

Environment

Temp: -168 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 19,779,887 km

• M1: 157,975 km (0.06 R)
• M2: 635,492 km (0.087 R)
• M3: 1,114,055 km (0.089 R)
• M4: 1,550,283 km (0.119 R)
• M5: 1,970,653 km (0.088 R)
• M6: 2,804,362 km (0.082 R)
• M7: 3,251,211 km (0.107 R)
• M8: 3,835,091 km (0.116 R)
• M9: 4,360,329 km (0.072 R)
• M10: 4,872,253 km (0.103 R)
• M11: 5,473,337 km (0.11 R)
• M12: 5,878,149 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 876.2

Radius: 10.3

Gravity: 8.26 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 3.37 AU - 3.67 AU

Year: 4479 Days

Day: 5.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 19,779,887 km

• M1: 128,056 km (0.113 R)
• M2: 655,089 km (0.09 R)
• M3: 1,689,558 km (0.037 R)
• M4: 2,296,028 km (0.116 R)
• M5: 3,138,713 km (0.073 R)
• M6: 4,034,505 km (0.11 R)
• M7: 4,931,045 km (0.105 R)
• M8: 5,512,233 km (0.09 R)
• M9: 6,712,756 km (0.088 R)
• M10: 7,287,511 km (0.086 R)
• M11: 7,748,871 km (0.049 R)
• M12: 9,169,601 km (0.089 R)
• M13: 9,750,041 km (0.102 R)
• M14: 10,136,004 km (0.11 R)
• M15: 11,076,526 km (0.112 R)
• M16: 11,976,656 km (0.046 R)
• M17: 12,320,282 km (0.045 R)
• M18: 14,192,948 km (0.068 R)
• M19: 14,857,313 km (0.11 R)
• M20: 15,716,752 km (0.032 R)
• M21: 16,975,319 km (0.107 R)
• M22: 18,690,459 km (0.117 R)
• M23: 19,828,001 km (0.119 R)
• M24: 20,240,293 km (0.031 R)
• M25: 20,940,261 km (0.102 R)
• M26: 21,367,812 km (0.049 R)
• M27: 23,441,089 km (0.1 R)
• M28: 26,381,734 km (0.094 R)
• M29: 26,880,793 km (0.109 R)
• M30: 29,293,058 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 200.1

Radius: 13.1

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 3.4 AU - 4.22 AU

Year: 5044 Days

Day: 8.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 19,779,887 km

• M1: 163,510 km (0.057 R)
• M2: 934,837 km (0.032 R)
• M3: 2,783,568 km (0.09 R)
• M4: 4,790,124 km (0.035 R)
• M5: 7,593,139 km (0.076 R)
• M6: 8,329,161 km (0.068 R)
• M7: 9,759,167 km (0.062 R)
• M8: 10,474,693 km (0.05 R)
• M9: 11,469,519 km (0.079 R)
• M10: 13,011,275 km (0.043 R)
• M11: 13,739,218 km (0.115 R)
• M12: 15,678,156 km (0.104 R)
• M13: 16,660,565 km (0.025 R)
• M14: 18,070,824 km (0.073 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 174.3

Radius: 5.7

Gravity: 5.36 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 4.78 AU - 6.94 AU

Year: 9621 Days

Day: 22.6 Hours

Environment

Temp: -234 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 19,779,887 km

• M1: 70,909 km (0.116 R)
• M2: 444,455 km (0.11 R)
• M3: 691,741 km (0.095 R)
• M4: 892,351 km (0.081 R)
• M5: 1,211,294 km (0.096 R)
• M6: 2,032,736 km (0.038 R)
• M7: 2,852,682 km (0.118 R)
• M8: 3,696,264 km (0.111 R)
• M9: 3,874,136 km (0.064 R)
• M10: 4,746,890 km (0.104 R)
• M11: 7,703,991 km (0.094 R)
• M12: 8,561,037 km (0.098 R)
• M13: 8,755,515 km (0.088 R)
• M14: 12,331,203 km (0.1 R)
• M15: 15,077,969 km (0.09 R)
• M16: 17,387,461 km (0.063 R)
• M17: 18,528,893 km (0.095 R)
• M18: 20,127,346 km (0.095 R)
• M19: 22,471,994 km (0.028 R)
• M20: 24,756,204 km (0.112 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 383.6

Radius: 7.4

Gravity: 7.01 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 6.61 AU - 7.01 AU

Year: 12053 Days

Day: 16.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 148.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 19,779,887 km

• M1: 93,947 km (0.077 R)
• M2: 444,006 km (0.075 R)
• M3: 1,741,020 km (0.055 R)
• M4: 2,023,162 km (0.102 R)
• M5: 2,281,368 km (0.099 R)
• M6: 3,147,240 km (0.106 R)
• M7: 3,471,867 km (0.047 R)
• M8: 4,728,340 km (0.099 R)
• M9: 5,186,558 km (0.103 R)
• M10: 6,120,797 km (0.077 R)
• M11: 7,643,853 km (0.069 R)
• M12: 8,060,932 km (0.032 R)
• M13: 9,689,454 km (0.119 R)
• M14: 10,178,190 km (0.093 R)
• M15: 10,428,767 km (0.114 R)
• M16: 13,283,693 km (0.109 R)
• M17: 14,382,489 km (0.112 R)
• M18: 17,039,048 km (0.036 R)
• M19: 18,855,914 km (0.045 R)
• M20: 20,558,338 km (0.108 R)
• M21: 23,300,467 km (0.118 R)
• M22: 29,497,858 km (0.115 R)
• M23: 29,803,187 km (0.081 R)
• M24: 30,316,607 km (0.114 R)
• M25: 31,361,099 km (0.094 R)
• M26: 38,017,157 km (0.052 R)
• M27: 42,768,236 km (0.046 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 208.8

Radius: 6.4

Gravity: 5.1 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 5.98 AU - 7.82 AU

Year: 12293 Days

Day: 18.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 19,779,887 km

• M1: 96,491 km (0.112 R)
• M2: 636,240 km (0.11 R)
• M3: 1,622,987 km (0.083 R)
• M4: 1,996,533 km (0.058 R)
• M5: 3,378,818 km (0.092 R)
• M6: 3,769,717 km (0.049 R)
• M7: 9,141,327 km (0.082 R)
• M8: 9,404,470 km (0.093 R)
• M9: 16,877,931 km (0.093 R)
• M10: 17,676,784 km (0.109 R)
• M11: 19,565,606 km (0.06 R)
• M12: 20,002,881 km (0.088 R)
• M13: 21,817,653 km (0.107 R)
• M14: 22,287,988 km (0.089 R)
• M15: 22,685,021 km (0.099 R)
• M16: 23,086,691 km (0.033 R)
• M17: 24,741,244 km (0.12 R)
• M18: 26,296,613 km (0.031 R)
• M19: 27,824,306 km (0.1 R)
• M20: 30,273,822 km (0.101 R)
• M21: 31,950,814 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 16

Radius: 5.1

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 8.25 AU - 9.11 AU

Year: 17345 Days

Day: 19.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 19,779,887 km

• M1: 89,609 km (0.029 R)
• M2: 908,807 km (0.065 R)
• M3: 1,920,687 km (0.108 R)
• M4: 3,185,387 km (0.103 R)
• M5: 3,638,370 km (0.085 R)
• M6: 6,046,596 km (0.116 R)
• M7: 6,653,814 km (0.046 R)
• M8: 6,855,173 km (0.099 R)
• M9: 8,548,770 km (0.112 R)
• M10: 9,674,046 km (0.052 R)
• M11: 14,629,176 km (0.067 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 452 - 10,518 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit