🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.73

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.54 AU - 0.66 AU

Year: 201 Days

Day: 33 Hours

Environment

Temp: 11 °C

Axial Tilt: 1.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 44,077,558 km

• M1: 30,368 km (0.102 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.6

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 1.18 AU - 1.5 AU

Year: 672 Days

Day: 32.7 Hours

Environment

Temp: -79 °C

Axial Tilt: 14.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.37

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.23 AU - 1.58 AU

Year: 718 Days

Day: 26.1 Hours

Environment

Temp: -83 °C

Axial Tilt: 2.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.11

Radius: 1.04

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.45 AU - 1.63 AU

Year: 828 Days

Day: 25.6 Hours

Environment

Temp: -88 °C

Axial Tilt: 22.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.14

Radius: 1.05

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.31 AU - 1.99 AU

Year: 919 Days

Day: 47.6 Hours

Environment

Temp: -110 °C

Axial Tilt: 18.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 345.8

Radius: 14.9

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.4 AU - 3.14 AU

Year: 1998 Days

Day: 6.7 Hours

Environment

Temp: -138 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (61)

Outer Limit: 44,077,558 km

• M1: 187,446 km (0.098 R)
• M2: 360,381 km (0.112 R)
• M3: 573,857 km (0.066 R)
• M4: 693,386 km (0.099 R)
• M5: 873,502 km (0.089 R)
• M6: 1,016,069 km (0.085 R)
• M7: 1,175,540 km (0.097 R)
• M8: 1,318,406 km (0.1 R)
• M9: 1,413,999 km (0.071 R)
• M10: 1,576,163 km (0.118 R)
• M11: 1,716,336 km (0.068 R)
• M12: 1,880,445 km (0.062 R)
• M13: 2,141,942 km (0.114 R)
• M14: 2,266,857 km (0.114 R)
• M15: 2,480,632 km (0.116 R)
• M16: 2,579,067 km (0.073 R)
• M17: 2,712,359 km (0.107 R)
• M18: 2,814,086 km (0.065 R)
• M19: 3,150,382 km (0.081 R)
• M20: 3,317,482 km (0.065 R)
• M21: 3,536,793 km (0.051 R)
• M22: 3,786,322 km (0.052 R)
• M23: 3,990,074 km (0.103 R)
• M24: 4,236,911 km (0.095 R)
• M25: 4,475,370 km (0.1 R)
• M26: 4,664,013 km (0.118 R)
• M27: 4,827,972 km (0.106 R)
• M28: 4,979,814 km (0.079 R)
• M29: 5,147,364 km (0.062 R)
• M30: 5,345,282 km (0.116 R)
• M31: 5,473,936 km (0.102 R)
• M32: 5,676,042 km (0.106 R)
• M33: 5,777,919 km (0.089 R)
• M34: 5,880,543 km (0.115 R)
• M35: 6,028,196 km (0.052 R)
• M36: 6,162,235 km (0.065 R)
• M37: 6,267,104 km (0.11 R)
• M38: 6,387,829 km (0.042 R)
• M39: 6,631,374 km (0.087 R)
• M40: 6,940,294 km (0.106 R)
• M41: 7,049,500 km (0.106 R)
• M42: 7,976,858 km (0.119 R)
• M43: 8,222,946 km (0.048 R)
• M44: 8,555,053 km (0.046 R)
• M45: 8,689,093 km (0.103 R)
• M46: 8,790,221 km (0.1 R)
• M47: 9,146,863 km (0.075 R)
• M48: 9,456,530 km (0.077 R)
• M49: 9,560,501 km (0.117 R)
• M50: 9,752,136 km (0.108 R)
• M51: 10,281,263 km (0.098 R)
• M52: 10,441,782 km (0.098 R)
• M53: 10,675,304 km (0.067 R)
• M54: 10,892,221 km (0.12 R)
• M55: 11,074,282 km (0.114 R)
• M56: 11,404,444 km (0.076 R)
• M57: 11,626,298 km (0.106 R)
• M58: 11,961,846 km (0.111 R)
• M59: 12,093,342 km (0.113 R)
• M60: 12,225,138 km (0.069 R)
• M61: 12,661,814 km (0.044 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 528.9

Radius: 10.9

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 3.12 AU - 4.02 AU

Year: 2924 Days

Day: 8.6 Hours

Environment

Temp: -161 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (76)

Outer Limit: 44,077,558 km

• M1: 137,331 km (0.107 R)
• M2: 220,956 km (0.116 R)
• M3: 313,108 km (0.107 R)
• M4: 439,668 km (0.066 R)
• M5: 546,631 km (0.111 R)
• M6: 895,493 km (0.109 R)
• M7: 975,528 km (0.111 R)
• M8: 1,366,726 km (0.091 R)
• M9: 1,507,797 km (0.072 R)
• M10: 1,592,320 km (0.058 R)
• M11: 1,881,941 km (0.094 R)
• M12: 2,013,288 km (0.102 R)
• M13: 2,106,936 km (0.074 R)
• M14: 2,188,617 km (0.112 R)
• M15: 2,411,368 km (0.083 R)
• M16: 2,641,749 km (0.105 R)
• M17: 3,312,246 km (0.1 R)
• M18: 3,568,807 km (0.078 R)
• M19: 3,699,555 km (0.074 R)
• M20: 3,831,949 km (0.085 R)
• M21: 4,016,703 km (0.045 R)
• M22: 4,084,620 km (0.102 R)
• M23: 4,695,129 km (0.051 R)
• M24: 5,148,710 km (0.072 R)
• M25: 5,390,161 km (0.108 R)
• M26: 5,484,108 km (0.092 R)
• M27: 5,769,092 km (0.087 R)
• M28: 5,981,072 km (0.114 R)
• M29: 6,333,824 km (0.106 R)
• M30: 6,532,640 km (0.098 R)
• M31: 6,693,158 km (0.082 R)
• M32: 6,834,828 km (0.119 R)
• M33: 6,936,554 km (0.033 R)
• M34: 7,100,513 km (0.045 R)
• M35: 7,286,314 km (0.085 R)
• M36: 7,390,434 km (0.076 R)
• M37: 7,663,001 km (0.099 R)
• M38: 7,981,794 km (0.068 R)
• M39: 8,089,056 km (0.092 R)
• M40: 8,240,000 km (0.097 R)
• M41: 8,986,494 km (0.088 R)
• M42: 9,232,732 km (0.1 R)
• M43: 9,413,147 km (0.066 R)
• M44: 9,549,131 km (0.032 R)
• M45: 11,136,963 km (0.099 R)
• M46: 11,546,712 km (0.061 R)
• M47: 11,838,876 km (0.054 R)
• M48: 12,455,369 km (0.119 R)
• M49: 12,755,014 km (0.116 R)
• M50: 12,905,808 km (0.113 R)
• M51: 13,158,330 km (0.031 R)
• M52: 13,285,189 km (0.09 R)
• M53: 13,361,483 km (0.055 R)
• M54: 13,437,928 km (0.048 R)
• M55: 13,668,309 km (0.112 R)
• M56: 13,848,275 km (0.109 R)
• M57: 13,925,767 km (0.052 R)
• M58: 14,003,258 km (0.113 R)
• M59: 14,550,039 km (0.116 R)
• M60: 14,760,224 km (0.072 R)
• M61: 15,024,413 km (0.087 R)
• M62: 15,210,214 km (0.109 R)
• M63: 15,396,912 km (0.111 R)
• M64: 15,853,186 km (0.109 R)
• M65: 15,934,268 km (0.106 R)
• M66: 16,205,189 km (0.054 R)
• M67: 16,834,248 km (0.118 R)
• M68: 16,944,502 km (0.1 R)
• M69: 17,054,905 km (0.1 R)
• M70: 17,221,108 km (0.102 R)
• M71: 17,359,935 km (0.057 R)
• M72: 17,443,411 km (0.05 R)
• M73: 18,088,028 km (0.103 R)
• M74: 19,026,605 km (0.097 R)
• M75: 19,170,219 km (0.104 R)
• M76: 19,285,260 km (0.056 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 652.3

Radius: 9.2

Gravity: 7.71 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 3.01 AU - 4.99 AU

Year: 3468 Days

Day: 11.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (79)

Outer Limit: 44,077,558 km

• M1: 211,531 km (0.109 R)
• M2: 299,645 km (0.115 R)
• M3: 446,400 km (0.074 R)
• M4: 619,036 km (0.031 R)
• M5: 698,622 km (0.108 R)
• M6: 803,341 km (0.063 R)
• M7: 913,744 km (0.047 R)
• M8: 1,053,319 km (0.046 R)
• M9: 1,810,134 km (0.047 R)
• M10: 1,912,758 km (0.074 R)
• M11: 2,002,517 km (0.105 R)
• M12: 2,078,363 km (0.1 R)
• M13: 2,217,190 km (0.111 R)
• M14: 2,423,486 km (0.115 R)
• M15: 2,504,568 km (0.054 R)
• M16: 2,569,942 km (0.084 R)
• M17: 2,652,669 km (0.115 R)
• M18: 2,957,700 km (0.118 R)
• M19: 3,436,413 km (0.042 R)
• M20: 3,882,364 km (0.103 R)
• M21: 4,092,848 km (0.09 R)
• M22: 4,366,313 km (0.115 R)
• M23: 4,746,890 km (0.1 R)
• M24: 4,910,401 km (0.087 R)
• M25: 4,972,184 km (0.093 R)
• M26: 5,034,268 km (0.092 R)
• M27: 5,348,423 km (0.114 R)
• M28: 5,582,993 km (0.077 R)
• M29: 5,864,536 km (0.074 R)
• M30: 6,195,147 km (0.119 R)
• M31: 6,463,974 km (0.038 R)
• M32: 6,691,064 km (0.107 R)
• M33: 6,782,618 km (0.086 R)
• M34: 7,129,685 km (0.092 R)
• M35: 7,411,527 km (0.028 R)
• M36: 7,841,172 km (0.046 R)
• M37: 8,229,828 km (0.112 R)
• M38: 8,500,749 km (0.045 R)
• M39: 8,975,723 km (0.049 R)
• M40: 9,331,167 km (0.081 R)
• M41: 9,407,911 km (0.116 R)
• M42: 9,717,130 km (0.112 R)
• M43: 10,478,134 km (0.1 R)
• M44: 10,584,498 km (0.098 R)
• M45: 11,122,302 km (0.107 R)
• M46: 11,285,364 km (0.061 R)
• M47: 11,449,323 km (0.055 R)
• M48: 11,641,557 km (0.108 R)
• M49: 11,945,689 km (0.083 R)
• M50: 12,336,588 km (0.051 R)
• M51: 13,245,994 km (0.042 R)
• M52: 14,029,887 km (0.089 R)
• M53: 14,088,679 km (0.115 R)
• M54: 14,590,729 km (0.05 R)
• M55: 15,218,891 km (0.047 R)
• M56: 15,279,179 km (0.05 R)
• M57: 16,968,438 km (0.095 R)
• M58: 17,281,845 km (0.09 R)
• M59: 17,534,067 km (0.09 R)
• M60: 17,723,907 km (0.041 R)
• M61: 17,946,359 km (0.105 R)
• M62: 18,041,952 km (0.101 R)
• M63: 18,233,736 km (0.063 R)
• M64: 18,426,119 km (0.074 R)
• M65: 18,780,666 km (0.081 R)
• M66: 18,845,293 km (0.092 R)
• M67: 18,910,068 km (0.085 R)
• M68: 19,072,382 km (0.045 R)
• M69: 19,137,457 km (0.113 R)
• M70: 19,300,369 km (0.07 R)
• M71: 19,562,016 km (0.075 R)
• M72: 20,353,837 km (0.033 R)
• M73: 20,921,113 km (0.111 R)
• M74: 21,392,196 km (0.087 R)
• M75: 21,459,815 km (0.1 R)
• M76: 21,934,937 km (0.104 R)
• M77: 22,207,954 km (0.114 R)
• M78: 22,310,578 km (0.104 R)
• M79: 23,103,147 km (0.109 R)

Planet 9 - Gas Giant

Semi-Major Axis: 6.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 685.3

Radius: 9.8

Gravity: 7.14 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 6.34 AU - 6.54 AU

Year: 7084 Days

Day: 8.6 Hours

Environment

Temp: -191 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (88)

Outer Limit: 44,077,558 km

• M1: 148,999 km (0.048 R)
• M2: 299,794 km (0.072 R)
• M3: 403,166 km (0.106 R)
• M4: 496,515 km (0.073 R)
• M5: 559,197 km (0.053 R)
• M6: 708,196 km (0.026 R)
• M7: 840,291 km (0.083 R)
• M8: 917,484 km (0.083 R)
• M9: 981,212 km (0.113 R)
• M10: 1,216,380 km (0.081 R)
• M11: 1,760,019 km (0.098 R)
• M12: 1,840,652 km (0.099 R)
• M13: 2,005,509 km (0.104 R)
• M14: 2,350,183 km (0.093 R)
• M15: 2,949,771 km (0.049 R)
• M16: 3,417,115 km (0.118 R)
• M17: 3,492,961 km (0.1 R)
• M18: 3,672,478 km (0.081 R)
• M19: 3,854,988 km (0.065 R)
• M20: 3,934,125 km (0.075 R)
• M21: 4,256,209 km (0.108 R)
• M22: 4,614,795 km (0.035 R)
• M23: 4,811,965 km (0.119 R)
• M24: 4,954,532 km (0.111 R)
• M25: 5,069,573 km (0.105 R)
• M26: 5,449,701 km (0.044 R)
• M27: 5,748,298 km (0.055 R)
• M28: 5,930,209 km (0.109 R)
• M29: 6,175,550 km (0.118 R)
• M30: 6,613,123 km (0.118 R)
• M31: 6,676,403 km (0.069 R)
• M32: 7,584,163 km (0.096 R)
• M33: 7,917,767 km (0.071 R)
• M34: 8,018,895 km (0.113 R)
• M35: 8,188,090 km (0.077 R)
• M36: 8,564,927 km (0.115 R)
• M37: 9,335,356 km (0.118 R)
• M38: 9,837,107 km (0.097 R)
• M39: 9,982,217 km (0.105 R)
• M40: 10,311,033 km (0.035 R)
• M41: 10,569,239 km (0.11 R)
• M42: 10,979,437 km (0.106 R)
• M43: 11,892,432 km (0.089 R)
• M44: 12,046,967 km (0.091 R)
• M45: 12,553,805 km (0.084 R)
• M46: 12,869,157 km (0.073 R)
• M47: 12,948,444 km (0.055 R)
• M48: 13,347,272 km (0.108 R)
• M49: 14,075,065 km (0.052 R)
• M50: 14,279,566 km (0.085 R)
• M51: 14,526,252 km (0.083 R)
• M52: 14,774,435 km (0.108 R)
• M53: 15,107,440 km (0.081 R)
• M54: 15,653,772 km (0.085 R)
• M55: 16,249,470 km (0.059 R)
• M56: 16,550,162 km (0.074 R)
• M57: 16,939,416 km (0.062 R)
• M58: 18,169,709 km (0.072 R)
• M59: 18,615,959 km (0.116 R)
• M60: 18,840,505 km (0.07 R)
• M61: 18,930,563 km (0.108 R)
• M62: 19,156,456 km (0.091 R)
• M63: 19,702,040 km (0.095 R)
• M64: 19,884,998 km (0.102 R)
• M65: 20,344,862 km (0.11 R)
• M66: 20,854,990 km (0.075 R)
• M67: 22,410,060 km (0.118 R)
• M68: 23,032,986 km (0.068 R)
• M69: 25,381,672 km (0.08 R)
• M70: 25,930,697 km (0.1 R)
• M71: 26,837,409 km (0.111 R)
• M72: 27,651,970 km (0.033 R)
• M73: 27,754,444 km (0.104 R)
• M74: 28,371,535 km (0.081 R)
• M75: 29,514,613 km (0.076 R)
• M76: 29,776,559 km (0.096 R)
• M77: 30,144,420 km (0.032 R)
• M78: 31,204,021 km (0.117 R)
• M79: 31,952,908 km (0.105 R)
• M80: 32,545,615 km (0.102 R)
• M81: 32,816,088 km (0.112 R)
• M82: 33,414,031 km (0.1 R)
• M83: 33,741,650 km (0.104 R)
• M84: 34,290,076 km (0.098 R)
• M85: 34,565,486 km (0.093 R)
• M86: 34,730,941 km (0.047 R)
• M87: 35,562,705 km (0.035 R)
• M88: 37,528,720 km (0.095 R)

Planet 10 - Gas Giant

Semi-Major Axis: 7.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 788.7

Radius: 13.4

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 6.15 AU - 8.07 AU

Year: 8218 Days

Day: 7 Hours

Environment

Temp: -182 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (86)

Outer Limit: 44,077,558 km

• M1: 272,717 km (0.106 R)
• M2: 628,461 km (0.098 R)
• M3: 733,030 km (0.076 R)
• M4: 911,201 km (0.074 R)
• M5: 1,274,125 km (0.101 R)
• M6: 1,639,443 km (0.102 R)
• M7: 1,856,809 km (0.107 R)
• M8: 2,084,048 km (0.101 R)
• M9: 2,296,477 km (0.08 R)
• M10: 2,393,267 km (0.095 R)
• M11: 2,591,185 km (0.047 R)
• M12: 2,820,369 km (0.052 R)
• M13: 2,924,489 km (0.08 R)
• M14: 3,520,038 km (0.085 R)
• M15: 3,947,738 km (0.087 R)
• M16: 5,041,897 km (0.105 R)
• M17: 5,622,636 km (0.066 R)
• M18: 5,787,792 km (0.1 R)
• M19: 6,953,459 km (0.088 R)
• M20: 7,381,907 km (0.051 R)
• M21: 7,599,422 km (0.114 R)
• M22: 7,892,933 km (0.044 R)
• M23: 8,115,385 km (0.102 R)
• M24: 8,566,722 km (0.054 R)
• M25: 9,181,121 km (0.096 R)
• M26: 10,089,479 km (0.102 R)
• M27: 10,250,297 km (0.074 R)
• M28: 10,820,264 km (0.028 R)
• M29: 11,026,261 km (0.102 R)
• M30: 11,400,555 km (0.112 R)
• M31: 11,526,217 km (0.098 R)
• M32: 11,652,328 km (0.088 R)
• M33: 11,863,560 km (0.064 R)
• M34: 13,599,194 km (0.1 R)
• M35: 13,732,486 km (0.107 R)
• M36: 14,000,566 km (0.074 R)
• M37: 14,814,976 km (0.078 R)
• M38: 15,181,940 km (0.086 R)
• M39: 15,320,468 km (0.094 R)
• M40: 15,412,919 km (0.111 R)
• M41: 15,505,520 km (0.028 R)
• M42: 16,584,719 km (0.098 R)
• M43: 17,446,253 km (0.076 R)
• M44: 19,512,649 km (0.116 R)
• M45: 19,612,879 km (0.056 R)
• M46: 20,421,755 km (0.104 R)
• M47: 21,189,940 km (0.09 R)
• M48: 22,333,616 km (0.111 R)
• M49: 22,438,633 km (0.086 R)
• M50: 23,018,924 km (0.081 R)
• M51: 24,086,604 km (0.073 R)
• M52: 24,194,314 km (0.08 R)
• M53: 24,735,110 km (0.116 R)
• M54: 25,938,775 km (0.119 R)
• M55: 26,270,284 km (0.075 R)
• M56: 26,381,136 km (0.105 R)
• M57: 27,498,183 km (0.11 R)
• M58: 28,119,164 km (0.111 R)
• M59: 29,030,514 km (0.047 R)
• M60: 29,547,524 km (0.038 R)
• M61: 29,662,864 km (0.063 R)
• M62: 29,778,204 km (0.1 R)
• M63: 30,765,550 km (0.05 R)
• M64: 31,527,901 km (0.097 R)
• M65: 31,822,609 km (0.095 R)
• M66: 31,940,941 km (0.078 R)
• M67: 32,831,945 km (0.066 R)
• M68: 33,011,164 km (0.107 R)
• M69: 33,130,842 km (0.095 R)
• M70: 33,671,040 km (0.112 R)
• M71: 33,972,480 km (0.114 R)
• M72: 34,214,230 km (0.095 R)
• M73: 35,248,101 km (0.092 R)
• M74: 35,799,518 km (0.118 R)
• M75: 36,973,263 km (0.093 R)
• M76: 37,221,895 km (0.028 R)
• M77: 37,596,039 km (0.117 R)
• M78: 38,599,691 km (0.102 R)
• M79: 38,915,044 km (0.097 R)
• M80: 39,994,093 km (0.025 R)
• M81: 40,441,241 km (0.108 R)
• M82: 40,890,035 km (0.061 R)
• M83: 41,147,194 km (0.07 R)
• M84: 42,962,564 km (0.025 R)
• M85: 43,814,374 km (0.097 R)
• M86: 44,077,517 km (0.104 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 548 - 16,895 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit