🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 82.8

Radius: 10.5

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.58 AU - 0.82 AU

Year: 391 Days

Day: 11.2 Hours

Environment

Temp: -155 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 55,426,641 km

• M1: 130,898 km (0.104 R)
• M2: 479,162 km (0.119 R)
• M3: 1,145,172 km (0.088 R)
• M4: 1,490,743 km (0.077 R)
• M5: 1,882,689 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421.9

Radius: 13.5

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.77 AU - 0.77 AU

Year: 451 Days

Day: 14.7 Hours

Environment

Temp: -170 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,426,641 km

• M1: 167,849 km (0.095 R)
• M2: 593,455 km (0.063 R)
• M3: 1,230,891 km (0.08 R)
• M4: 1,684,023 km (0.048 R)
• M5: 2,233,795 km (0.107 R)
• M6: 2,774,143 km (0.104 R)
• M7: 3,412,627 km (0.09 R)
• M8: 3,871,144 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 526.9

Radius: 10.9

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.66 AU - 0.94 AU

Year: 477 Days

Day: 5.1 Hours

Environment

Temp: -164 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,426,641 km

• M1: 135,984 km (0.104 R)
• M2: 622,776 km (0.061 R)
• M3: 1,038,808 km (0.082 R)
• M4: 1,441,525 km (0.045 R)
• M5: 1,787,395 km (0.08 R)
• M6: 2,312,484 km (0.096 R)
• M7: 2,792,543 km (0.049 R)
• M8: 3,455,860 km (0.036 R)
• M9: 3,876,679 km (0.112 R)
• M10: 4,276,106 km (0.08 R)
• M11: 4,615,543 km (0.103 R)
• M12: 5,660,035 km (0.054 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 255.4

Radius: 8.1

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.46 AU - 1.52 AU

Year: 1213 Days

Day: 5.4 Hours

Environment

Temp: -194 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 55,426,641 km

• M1: 100,679 km (0.079 R)
• M2: 426,055 km (0.042 R)
• M3: 732,880 km (0.045 R)
• M4: 995,873 km (0.099 R)
• M5: 1,337,255 km (0.092 R)
• M6: 1,599,201 km (0.115 R)
• M7: 2,447,870 km (0.085 R)
• M8: 2,844,604 km (0.103 R)
• M9: 3,554,445 km (0.104 R)
• M10: 3,958,659 km (0.063 R)
• M11: 5,266,443 km (0.056 R)
• M12: 5,600,795 km (0.043 R)
• M13: 5,870,669 km (0.088 R)
• M14: 6,949,868 km (0.118 R)
• M15: 7,239,191 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 693.9

Radius: 9.8

Gravity: 7.23 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 2.81 AU - 3.27 AU

Year: 3535 Days

Day: 12.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 55,426,641 km

• M1: 123,269 km (0.068 R)
• M2: 718,070 km (0.086 R)
• M3: 1,038,209 km (0.117 R)
• M4: 1,542,204 km (0.053 R)
• M5: 2,120,101 km (0.091 R)
• M6: 2,498,284 km (0.052 R)
• M7: 3,646,299 km (0.101 R)
• M8: 3,955,368 km (0.101 R)
• M9: 6,052,131 km (0.084 R)
• M10: 9,982,666 km (0.099 R)
• M11: 10,674,107 km (0.076 R)
• M12: 11,971,869 km (0.055 R)
• M13: 13,131,402 km (0.115 R)
• M14: 14,930,316 km (0.114 R)
• M15: 16,718,460 km (0.041 R)
• M16: 17,058,346 km (0.069 R)
• M17: 19,630,681 km (0.09 R)
• M18: 23,850,688 km (0.106 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 774.5

Radius: 6

Gravity: 21.51 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 6.52 AU - 9.78 AU

Year: 15516 Days

Day: 23.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 55,426,641 km

• M1: 79,287 km (0.119 R)
• M2: 380,427 km (0.115 R)
• M3: 650,601 km (0.067 R)
• M4: 964,457 km (0.113 R)
• M5: 1,222,663 km (0.116 R)
• M6: 1,773,483 km (0.097 R)
• M7: 2,124,589 km (0.116 R)
• M8: 3,167,735 km (0.074 R)
• M9: 3,800,983 km (0.107 R)
• M10: 5,242,657 km (0.091 R)
• M11: 5,501,761 km (0.089 R)
• M12: 6,926,980 km (0.059 R)
• M13: 7,329,996 km (0.082 R)
• M14: 8,786,781 km (0.111 R)
• M15: 9,528,636 km (0.075 R)
• M16: 10,484,567 km (0.119 R)
• M17: 11,564,813 km (0.072 R)
• M18: 12,983,450 km (0.119 R)
• M19: 13,665,167 km (0.112 R)
• M20: 15,099,661 km (0.107 R)
• M21: 15,323,160 km (0.114 R)
• M22: 21,561,541 km (0.107 R)
• M23: 23,799,376 km (0.112 R)
• M24: 24,819,035 km (0.098 R)
• M25: 28,164,492 km (0.107 R)
• M26: 30,832,420 km (0.108 R)
• M27: 34,301,894 km (0.07 R)
• M28: 34,947,708 km (0.088 R)
• M29: 37,339,778 km (0.034 R)
• M30: 38,437,079 km (0.056 R)
• M31: 39,414,701 km (0.057 R)
• M32: 42,004,539 km (0.115 R)
• M33: 44,859,016 km (0.079 R)
• M34: 52,812,087 km (0.074 R)
• M35: 55,954,540 km (0.092 R)
• M36: 64,939,388 km (0.093 R)
• M37: 65,530,898 km (0.115 R)
• M38: 66,125,849 km (0.095 R)
• M39: 66,325,114 km (0.118 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 382.4

Radius: 5.3

Gravity: 13.61 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 8.46 AU - 10.92 AU

Year: 20115 Days

Day: 22.6 Hours

Environment

Temp: -244 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 55,426,641 km

• M1: 65,973 km (0.117 R)
• M2: 257,458 km (0.097 R)
• M3: 531,820 km (0.104 R)
• M4: 850,464 km (0.097 R)
• M5: 1,107,623 km (0.09 R)
• M6: 1,415,645 km (0.068 R)
• M7: 1,830,928 km (0.058 R)
• M8: 2,491,852 km (0.107 R)
• M9: 3,707,334 km (0.086 R)
• M10: 4,820,941 km (0.091 R)
• M11: 5,130,908 km (0.053 R)
• M12: 5,381,185 km (0.066 R)
• M13: 6,141,292 km (0.072 R)
• M14: 6,927,279 km (0.05 R)
• M15: 7,502,483 km (0.073 R)
• M16: 10,124,335 km (0.031 R)
• M17: 10,690,413 km (0.082 R)
• M18: 11,098,965 km (0.082 R)
• M19: 13,299,550 km (0.038 R)
• M20: 13,635,996 km (0.082 R)
• M21: 14,047,240 km (0.083 R)
• M22: 14,679,441 km (0.085 R)
• M23: 19,733,006 km (0.119 R)
• M24: 28,971,572 km (0.113 R)
• M25: 29,423,208 km (0.045 R)
• M26: 35,214,890 km (0.115 R)
• M27: 38,106,018 km (0.119 R)
• M28: 39,609,178 km (0.049 R)
• M29: 42,009,476 km (0.071 R)
• M30: 45,560,480 km (0.04 R)
• M31: 48,986,720 km (0.104 R)
• M32: 57,404,293 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 869.3

Radius: 6.6

Gravity: 19.96 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 9.25 AU - 11.37 AU

Year: 22076 Days

Day: 15.4 Hours

Environment

Temp: -237 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 55,426,641 km

• M1: 82,129 km (0.072 R)
• M2: 884,572 km (0.087 R)
• M3: 1,755,232 km (0.076 R)
• M4: 2,248,157 km (0.076 R)
• M5: 2,625,443 km (0.088 R)
• M6: 3,269,761 km (0.118 R)
• M7: 3,850,948 km (0.05 R)
• M8: 4,217,463 km (0.095 R)
• M9: 4,607,166 km (0.104 R)
• M10: 5,137,490 km (0.118 R)
• M11: 6,829,891 km (0.076 R)
• M12: 8,920,222 km (0.052 R)
• M13: 9,622,285 km (0.107 R)
• M14: 14,389,969 km (0.09 R)
• M15: 20,429,235 km (0.104 R)
• M16: 26,876,454 km (0.096 R)
• M17: 39,745,162 km (0.097 R)
• M18: 50,707,545 km (0.109 R)
• M19: 58,969,685 km (0.119 R)
• M20: 59,780,955 km (0.108 R)
• M21: 62,259,492 km (0.043 R)
• M22: 64,162,826 km (0.119 R)
• M23: 74,263,525 km (0.076 R)
• M24: 78,095,624 km (0.103 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 187.5

Radius: 3.5

Gravity: 15.31 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 10.54 AU - 11.12 AU

Year: 23767 Days

Day: 23.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 55,426,641 km

• M1: 50,414 km (0.09 R)
• M2: 179,817 km (0.084 R)
• M3: 417,378 km (0.072 R)
• M4: 593,904 km (0.104 R)
• M5: 951,143 km (0.113 R)
• M6: 1,312,123 km (0.059 R)
• M7: 1,509,143 km (0.061 R)
• M8: 3,082,464 km (0.108 R)
• M9: 4,205,645 km (0.066 R)
• M10: 4,385,761 km (0.104 R)
• M11: 4,891,102 km (0.07 R)
• M12: 6,479,832 km (0.045 R)
• M13: 7,741,391 km (0.097 R)
• M14: 9,207,749 km (0.077 R)
• M15: 11,074,581 km (0.057 R)
• M16: 12,988,985 km (0.042 R)
• M17: 13,179,124 km (0.092 R)
• M18: 14,835,770 km (0.075 R)
• M19: 17,076,447 km (0.084 R)
• M20: 19,285,260 km (0.099 R)
• M21: 20,202,594 km (0.108 R)
• M22: 20,543,378 km (0.116 R)
• M23: 24,068,652 km (0.065 R)
• M24: 25,327,817 km (0.108 R)
• M25: 26,023,597 km (0.11 R)
• M26: 26,936,892 km (0.088 R)
• M27: 27,557,424 km (0.116 R)
• M28: 28,506,173 km (0.088 R)
• M29: 32,518,837 km (0.104 R)
• M30: 36,137,460 km (0.066 R)
• M31: 40,822,865 km (0.104 R)
• M32: 47,828,085 km (0.086 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: 176 - 20,125 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit