🌌 Stone's Star System Generator

Asteroid Belt

Center: 1.28 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158.3

Radius: 10.1

Gravity: 1.55 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 2.27 AU - 2.85 AU

Year: 2827 Days

Day: 8.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 83,933,889 km

• M1: 125,812 km (0.105 R)
• M2: 481,556 km (0.108 R)
• M3: 1,055,114 km (0.117 R)
• M4: 1,548,039 km (0.093 R)
• M5: 2,046,648 km (0.06 R)
• M6: 2,424,533 km (0.083 R)
• M7: 2,903,695 km (0.119 R)
• M8: 3,277,540 km (0.115 R)
• M9: 4,866,868 km (0.119 R)
• M10: 5,567,734 km (0.099 R)
• M11: 6,381,696 km (0.09 R)
• M12: 7,614,532 km (0.103 R)
• M13: 7,966,835 km (0.034 R)
• M14: 9,799,259 km (0.056 R)
• M15: 10,151,562 km (0.103 R)
• M16: 11,504,824 km (0.085 R)

Planet 2 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 502.5

Radius: 13.9

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 3 AU - 3.18 AU

Year: 3749 Days

Day: 8.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 83,933,889 km

• M1: 173,234 km (0.045 R)
• M2: 793,318 km (0.102 R)
• M3: 1,475,633 km (0.1 R)
• M4: 2,059,963 km (0.077 R)
• M5: 2,548,250 km (0.117 R)
• M6: 3,096,975 km (0.084 R)
• M7: 3,665,597 km (0.115 R)
• M8: 4,847,569 km (0.073 R)
• M9: 6,643,791 km (0.119 R)
• M10: 10,315,970 km (0.119 R)
• M11: 10,757,583 km (0.114 R)
• M12: 12,202,998 km (0.069 R)
• M13: 17,541,248 km (0.078 R)
• M14: 20,655,876 km (0.109 R)
• M15: 21,165,855 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 820.7

Radius: 13.5

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 3.15 AU - 4.47 AU

Year: 5133 Days

Day: 6.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 83,933,889 km

• M1: 167,998 km (0.113 R)
• M2: 594,652 km (0.096 R)
• M3: 1,116,599 km (0.054 R)
• M4: 1,657,694 km (0.096 R)
• M5: 2,169,020 km (0.117 R)
• M6: 3,087,550 km (0.115 R)
• M7: 3,539,037 km (0.115 R)
• M8: 5,870,220 km (0.106 R)
• M9: 6,635,264 km (0.088 R)
• M10: 7,720,896 km (0.041 R)
• M11: 9,085,079 km (0.09 R)
• M12: 12,136,576 km (0.1 R)
• M13: 13,486,398 km (0.102 R)
• M14: 16,606,560 km (0.042 R)
• M15: 17,875,450 km (0.103 R)
• M16: 18,734,141 km (0.051 R)
• M17: 20,893,138 km (0.059 R)
• M18: 23,058,717 km (0.108 R)
• M19: 25,042,384 km (0.089 R)
• M20: 26,285,842 km (0.12 R)
• M21: 27,396,456 km (0.094 R)
• M22: 27,919,600 km (0.081 R)
• M23: 28,895,876 km (0.12 R)
• M24: 29,620,079 km (0.107 R)
• M25: 31,865,394 km (0.114 R)

Planet 4 - Ice Giant

Semi-Major Axis: 5.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 497.8

Radius: 5.9

Gravity: 14.3 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 4.32 AU - 7.16 AU

Year: 9492 Days

Day: 22.5 Hours

Environment

Temp: -234 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 83,933,889 km

• M1: 73,453 km (0.067 R)
• M2: 284,834 km (0.11 R)
• M3: 928,105 km (0.104 R)
• M4: 1,161,927 km (0.042 R)
• M5: 1,593,816 km (0.099 R)
• M6: 1,854,864 km (0.114 R)
• M7: 2,874,673 km (0.089 R)
• M8: 3,196,009 km (0.108 R)
• M9: 3,685,643 km (0.09 R)
• M10: 3,961,501 km (0.112 R)
• M11: 4,387,257 km (0.078 R)
• M12: 6,507,657 km (0.038 R)
• M13: 7,100,065 km (0.076 R)
• M14: 8,694,030 km (0.077 R)
• M15: 10,863,797 km (0.039 R)
• M16: 12,182,503 km (0.099 R)
• M17: 14,142,684 km (0.083 R)
• M18: 14,386,378 km (0.051 R)
• M19: 17,323,433 km (0.084 R)
• M20: 19,414,363 km (0.082 R)
• M21: 19,867,046 km (0.093 R)
• M22: 20,404,102 km (0.087 R)
• M23: 21,507,087 km (0.072 R)
• M24: 26,409,709 km (0.057 R)
• M25: 28,776,646 km (0.105 R)
• M26: 29,069,858 km (0.116 R)
• M27: 29,761,748 km (0.042 R)
• M28: 31,591,480 km (0.106 R)
• M29: 31,799,271 km (0.043 R)
• M30: 35,361,197 km (0.105 R)
• M31: 36,834,437 km (0.025 R)
• M32: 38,230,334 km (0.089 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 353.6

Radius: 6.1

Gravity: 9.5 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 6.03 AU - 6.55 AU

Year: 10889 Days

Day: 24.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 83,933,889 km

• M1: 77,193 km (0.091 R)
• M2: 275,410 km (0.103 R)
• M3: 658,679 km (0.06 R)
• M4: 1,194,689 km (0.082 R)
• M5: 1,758,523 km (0.078 R)
• M6: 2,598,365 km (0.049 R)
• M7: 3,655,424 km (0.098 R)
• M8: 4,456,820 km (0.054 R)
• M9: 4,738,812 km (0.104 R)
• M10: 8,125,259 km (0.109 R)
• M11: 10,575,522 km (0.076 R)
• M12: 11,386,642 km (0.103 R)
• M13: 12,680,215 km (0.092 R)
• M14: 13,018,306 km (0.112 R)
• M15: 13,949,403 km (0.112 R)
• M16: 16,536,698 km (0.101 R)
• M17: 22,065,985 km (0.056 R)
• M18: 32,121,655 km (0.107 R)
• M19: 32,961,198 km (0.093 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 256.9

Radius: 7.6

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 8.89 AU - 8.93 AU

Year: 18358 Days

Day: 22.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 83,933,889 km

• M1: 97,388 km (0.116 R)
• M2: 371,751 km (0.119 R)
• M3: 818,600 km (0.073 R)
• M4: 2,350,781 km (0.112 R)
• M5: 2,736,145 km (0.111 R)
• M6: 3,954,620 km (0.106 R)
• M7: 4,411,641 km (0.081 R)
• M8: 5,568,930 km (0.085 R)
• M9: 7,037,682 km (0.074 R)
• M10: 7,580,124 km (0.089 R)
• M11: 8,376,733 km (0.088 R)
• M12: 9,524,298 km (0.091 R)
• M13: 12,068,958 km (0.11 R)
• M14: 13,091,310 km (0.107 R)
• M15: 15,238,937 km (0.086 R)
• M16: 16,360,322 km (0.069 R)
• M17: 16,867,908 km (0.105 R)
• M18: 20,887,603 km (0.087 R)
• M19: 22,535,274 km (0.036 R)
• M20: 25,891,502 km (0.053 R)
• M21: 29,780,598 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 718.6

Radius: 3.9

Gravity: 47.25 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 7.6 AU - 10.48 AU

Year: 18761 Days

Day: 21.7 Hours

Environment

Temp: -234 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 83,933,889 km

• M1: 49,068 km (0.075 R)
• M2: 173,234 km (0.103 R)
• M3: 375,042 km (0.074 R)
• M4: 614,548 km (0.105 R)
• M5: 1,835,566 km (0.077 R)
• M6: 3,036,238 km (0.03 R)
• M7: 4,273,562 km (0.057 R)
• M8: 4,508,281 km (0.069 R)
• M9: 7,933,325 km (0.113 R)
• M10: 8,600,082 km (0.12 R)
• M11: 8,974,077 km (0.077 R)
• M12: 13,832,118 km (0.072 R)
• M13: 15,254,495 km (0.1 R)
• M14: 17,102,926 km (0.062 R)
• M15: 19,548,403 km (0.107 R)
• M16: 22,616,954 km (0.076 R)
• M17: 24,796,296 km (0.073 R)
• M18: 31,158,693 km (0.06 R)
• M19: 31,283,458 km (0.082 R)
• M20: 31,659,846 km (0.066 R)
• M21: 33,586,816 km (0.075 R)
• M22: 39,541,410 km (0.105 R)
• M23: 43,774,880 km (0.072 R)
• M24: 48,300,365 km (0.032 R)
• M25: 54,022,484 km (0.119 R)
• M26: 56,952,657 km (0.11 R)
• M27: 57,513,500 km (0.08 R)
• M28: 73,864,996 km (0.05 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 988.1

Radius: 7

Gravity: 20.17 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 7.4 AU - 11.02 AU

Year: 19293 Days

Day: 15.7 Hours

Environment

Temp: -235 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 83,933,889 km

• M1: 87,664 km (0.044 R)
• M2: 499,058 km (0.106 R)
• M3: 767,886 km (0.08 R)
• M4: 1,412,952 km (0.101 R)
• M5: 2,633,521 km (0.113 R)
• M6: 3,411,729 km (0.092 R)
• M7: 3,901,961 km (0.086 R)
• M8: 4,508,730 km (0.09 R)
• M9: 5,060,746 km (0.103 R)
• M10: 5,453,291 km (0.11 R)
• M11: 5,781,659 km (0.09 R)
• M12: 6,523,664 km (0.085 R)
• M13: 6,988,764 km (0.057 R)
• M14: 9,593,562 km (0.101 R)
• M15: 12,289,465 km (0.105 R)
• M16: 13,961,072 km (0.073 R)
• M17: 15,614,876 km (0.084 R)
• M18: 16,873,293 km (0.093 R)
• M19: 17,307,426 km (0.076 R)
• M20: 18,017,418 km (0.112 R)
• M21: 22,170,255 km (0.095 R)
• M22: 22,796,172 km (0.092 R)
• M23: 27,155,305 km (0.107 R)
• M24: 27,631,475 km (0.052 R)
• M25: 28,356,276 km (0.114 R)
• M26: 29,217,811 km (0.12 R)
• M27: 32,437,605 km (0.087 R)
• M28: 32,704,937 km (0.117 R)
• M29: 40,802,071 km (0.081 R)
• M30: 42,695,531 km (0.062 R)
• M31: 46,148,550 km (0.115 R)
• M32: 47,856,508 km (0.094 R)
• M33: 48,901,300 km (0.101 R)
• M34: 54,353,993 km (0.082 R)
• M35: 56,643,887 km (0.028 R)
• M36: 58,798,845 km (0.091 R)
• M37: 62,855,939 km (0.077 R)
• M38: 65,590,738 km (0.112 R)
• M39: 69,285,356 km (0.084 R)
• M40: 71,070,956 km (0.106 R)
• M41: 82,682,444 km (0.079 R)
• M42: 83,181,502 km (0.115 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 483 - 19,082 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit