🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.57

Radius: 1.2

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.89 AU - 1.11 AU

Year: 383 Days

Day: 13.5 Hours

Environment

Temp: 18 °C

Axial Tilt: 32.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.86

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.26 AU - 1.5 AU

Year: 621 Days

Day: 26.6 Hours

Environment

Temp: -36 °C

Axial Tilt: 8.6 °

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: 3.25

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.3 AU - 1.5 AU

Year: 634 Days

Day: 35 Hours

Environment

Temp: -57 °C

Axial Tilt: 15 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,111,035 km

• M1: 105,317 km (0.038 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.58

Radius: 1.67

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 2.17 AU - 2.79 AU

Year: 1495 Days

Day: 40.3 Hours

Environment

Temp: -106 °C

Axial Tilt: 6.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,111,035 km

• M1: 1,784,703 km (0.062 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 968.5

Radius: 8.5

Gravity: 13.4 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 4.81 AU - 5.83 AU

Year: 4698 Days

Day: 9.5 Hours

Environment

Temp: -157 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (85)

Outer Limit: 51,111,035 km

• M1: 106,663 km (0.101 R)
• M2: 184,005 km (0.042 R)
• M3: 317,895 km (0.084 R)
• M4: 457,171 km (0.079 R)
• M5: 581,936 km (0.09 R)
• M6: 811,718 km (0.108 R)
• M7: 951,742 km (0.089 R)
• M8: 1,039,705 km (0.034 R)
• M9: 1,099,993 km (0.048 R)
• M10: 1,320,351 km (0.095 R)
• M11: 1,624,782 km (0.109 R)
• M12: 1,913,656 km (0.118 R)
• M13: 2,141,045 km (0.082 R)
• M14: 2,218,836 km (0.031 R)
• M15: 2,518,929 km (0.078 R)
• M16: 2,684,384 km (0.116 R)
• M17: 3,135,721 km (0.115 R)
• M18: 3,291,452 km (0.115 R)
• M19: 3,680,407 km (0.09 R)
• M20: 3,750,568 km (0.063 R)
• M21: 3,963,745 km (0.097 R)
• M22: 4,180,961 km (0.093 R)
• M23: 4,352,700 km (0.099 R)
• M24: 4,753,772 km (0.118 R)
• M25: 4,984,601 km (0.07 R)
• M26: 6,844,851 km (0.089 R)
• M27: 6,902,595 km (0.056 R)
• M28: 7,134,921 km (0.1 R)
• M29: 7,577,581 km (0.048 R)
• M30: 7,877,674 km (0.072 R)
• M31: 8,895,239 km (0.102 R)
• M32: 9,053,065 km (0.118 R)
• M33: 9,116,494 km (0.092 R)
• M34: 9,403,573 km (0.051 R)
• M35: 9,855,957 km (0.057 R)
• M36: 10,052,079 km (0.113 R)
• M37: 10,216,487 km (0.097 R)
• M38: 10,282,460 km (0.11 R)
• M39: 10,849,286 km (0.118 R)
• M40: 11,494,801 km (0.118 R)
• M41: 12,398,372 km (0.068 R)
• M42: 13,001,401 km (0.081 R)
• M43: 13,505,097 km (0.068 R)
• M44: 13,942,073 km (0.118 R)
• M45: 14,015,376 km (0.102 R)
• M46: 14,125,480 km (0.086 R)
• M47: 14,346,585 km (0.114 R)
• M48: 15,318,224 km (0.051 R)
• M49: 15,583,461 km (0.026 R)
• M50: 15,850,194 km (0.099 R)
• M51: 16,349,701 km (0.104 R)
• M52: 16,698,414 km (0.085 R)
• M53: 16,932,235 km (0.072 R)
• M54: 17,245,792 km (0.092 R)
• M55: 17,482,157 km (0.087 R)
• M56: 17,799,155 km (0.112 R)
• M57: 18,038,062 km (0.085 R)
• M58: 19,452,810 km (0.045 R)
• M59: 19,575,779 km (0.113 R)
• M60: 19,863,605 km (0.118 R)
• M61: 20,111,339 km (0.104 R)
• M62: 21,113,047 km (0.1 R)
• M63: 21,281,494 km (0.111 R)
• M64: 22,002,556 km (0.095 R)
• M65: 22,301,901 km (0.104 R)
• M66: 22,904,481 km (0.074 R)
• M67: 23,120,949 km (0.081 R)
• M68: 23,207,866 km (0.115 R)
• M69: 23,338,165 km (0.084 R)
• M70: 25,278,599 km (0.083 R)
• M71: 26,222,712 km (0.088 R)
• M72: 26,767,397 km (0.116 R)
• M73: 27,499,529 km (0.098 R)
• M74: 28,749,868 km (0.095 R)
• M75: 28,843,217 km (0.078 R)
• M76: 29,170,837 km (0.054 R)
• M77: 29,593,750 km (0.072 R)
• M78: 29,829,516 km (0.08 R)
• M79: 30,113,303 km (0.109 R)
• M80: 30,683,720 km (0.076 R)
• M81: 30,779,164 km (0.091 R)
• M82: 31,497,832 km (0.105 R)
• M83: 31,594,023 km (0.098 R)
• M84: 31,835,175 km (0.086 R)
• M85: 31,931,666 km (0.041 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 330

Radius: 11.8

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 7.84 AU - 7.92 AU

Year: 8470 Days

Day: 10.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (77)

Outer Limit: 51,111,035 km

• M1: 614,548 km (0.092 R)
• M2: 701,764 km (0.077 R)
• M3: 1,035,965 km (0.1 R)
• M4: 1,205,759 km (0.041 R)
• M5: 1,351,916 km (0.091 R)
• M6: 1,573,919 km (0.107 R)
• M7: 1,734,587 km (0.094 R)
• M8: 1,976,786 km (0.071 R)
• M9: 2,053,530 km (0.104 R)
• M10: 2,942,291 km (0.108 R)
• M11: 3,532,155 km (0.06 R)
• M12: 3,768,819 km (0.047 R)
• M13: 3,865,011 km (0.093 R)
• M14: 3,961,950 km (0.025 R)
• M15: 4,257,855 km (0.093 R)
• M16: 4,976,373 km (0.028 R)
• M17: 5,082,139 km (0.086 R)
• M18: 5,322,842 km (0.088 R)
• M19: 5,431,001 km (0.102 R)
• M20: 5,540,058 km (0.118 R)
• M21: 5,649,713 km (0.096 R)
• M22: 5,899,242 km (0.064 R)
• M23: 6,067,540 km (0.111 R)
• M24: 6,294,480 km (0.077 R)
• M25: 6,727,715 km (0.112 R)
• M26: 6,903,792 km (0.103 R)
• M27: 7,051,595 km (0.074 R)
• M28: 8,366,261 km (0.081 R)
• M29: 8,555,652 km (0.12 R)
• M30: 8,938,772 km (0.106 R)
• M31: 9,132,501 km (0.109 R)
• M32: 9,229,889 km (0.095 R)
• M33: 9,755,128 km (0.074 R)
• M34: 9,954,542 km (0.104 R)
• M35: 10,155,451 km (0.07 R)
• M36: 10,256,280 km (0.064 R)
• M37: 10,937,699 km (0.108 R)
• M38: 11,704,238 km (0.078 R)
• M39: 11,916,218 km (0.1 R)
• M40: 12,165,299 km (0.063 R)
• M41: 12,452,078 km (0.083 R)
• M42: 12,959,215 km (0.091 R)
• M43: 13,399,182 km (0.066 R)
• M44: 13,621,185 km (0.059 R)
• M45: 13,956,285 km (0.066 R)
• M46: 14,939,741 km (0.096 R)
• M47: 15,093,079 km (0.073 R)
• M48: 15,285,462 km (0.107 R)
• M49: 15,750,412 km (0.109 R)
• M50: 16,496,157 km (0.114 R)
• M51: 17,333,756 km (0.068 R)
• M52: 17,575,655 km (0.098 R)
• M53: 17,697,129 km (0.055 R)
• M54: 17,818,752 km (0.076 R)
• M55: 19,300,070 km (0.026 R)
• M56: 19,718,495 km (0.107 R)
• M57: 21,768,734 km (0.068 R)
• M58: 22,774,929 km (0.075 R)
• M59: 23,040,017 km (0.051 R)
• M60: 23,439,443 km (0.087 R)
• M61: 23,662,344 km (0.092 R)
• M62: 24,741,992 km (0.056 R)
• M63: 24,832,648 km (0.085 R)
• M64: 26,206,555 km (0.068 R)
• M65: 26,716,385 km (0.079 R)
• M66: 26,809,434 km (0.084 R)
• M67: 27,182,831 km (0.114 R)
• M68: 28,645,748 km (0.101 R)
• M69: 28,884,058 km (0.039 R)
• M70: 29,266,879 km (0.107 R)
• M71: 29,458,813 km (0.08 R)
• M72: 29,795,857 km (0.071 R)
• M73: 30,085,777 km (0.108 R)
• M74: 30,522,304 km (0.119 R)
• M75: 32,042,218 km (0.057 R)
• M76: 32,587,353 km (0.089 R)
• M77: 33,185,595 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195.4

Radius: 10.2

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 6.33 AU - 10.01 AU

Year: 8941 Days

Day: 6 Hours

Environment

Temp: -166 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (73)

Outer Limit: 51,111,035 km

• M1: 270,922 km (0.105 R)
• M2: 666,907 km (0.075 R)
• M3: 774,319 km (0.118 R)
• M4: 875,148 km (0.061 R)
• M5: 953,836 km (0.078 R)
• M6: 1,048,980 km (0.047 R)
• M7: 1,384,678 km (0.072 R)
• M8: 1,509,293 km (0.101 R)
• M9: 1,837,810 km (0.071 R)
• M10: 1,940,733 km (0.037 R)
• M11: 2,637,710 km (0.113 R)
• M12: 2,833,234 km (0.08 R)
• M13: 3,156,216 km (0.099 R)
• M14: 3,598,128 km (0.073 R)
• M15: 3,925,747 km (0.073 R)
• M16: 4,127,106 km (0.088 R)
• M17: 4,217,613 km (0.104 R)
• M18: 4,470,134 km (0.085 R)
• M19: 4,918,030 km (0.063 R)
• M20: 5,232,784 km (0.072 R)
• M21: 5,380,287 km (0.092 R)
• M22: 5,654,351 km (0.066 R)
• M23: 6,035,526 km (0.097 R)
• M24: 6,268,300 km (0.048 R)
• M25: 6,769,304 km (0.085 R)
• M26: 6,957,049 km (0.091 R)
• M27: 7,201,193 km (0.115 R)
• M28: 7,781,632 km (0.11 R)
• M29: 8,205,593 km (0.085 R)
• M30: 8,724,249 km (0.118 R)
• M31: 8,811,763 km (0.115 R)
• M32: 8,987,541 km (0.062 R)
• M33: 9,702,619 km (0.119 R)
• M34: 9,823,494 km (0.086 R)
• M35: 10,653,014 km (0.047 R)
• M36: 10,934,557 km (0.105 R)
• M37: 11,665,193 km (0.032 R)
• M38: 12,150,189 km (0.082 R)
• M39: 13,576,904 km (0.072 R)
• M40: 13,678,332 km (0.069 R)
• M41: 13,780,208 km (0.12 R)
• M42: 13,950,301 km (0.096 R)
• M43: 14,086,883 km (0.066 R)
• M44: 14,361,545 km (0.061 R)
• M45: 14,568,738 km (0.079 R)
• M46: 15,231,158 km (0.113 R)
• M47: 16,839,036 km (0.066 R)
• M48: 17,021,096 km (0.114 R)
• M49: 17,130,602 km (0.049 R)
• M50: 17,276,908 km (0.068 R)
• M51: 17,497,266 km (0.093 R)
• M52: 17,571,018 km (0.089 R)
• M53: 17,866,623 km (0.114 R)
• M54: 18,275,773 km (0.066 R)
• M55: 18,425,371 km (0.106 R)
• M56: 19,255,340 km (0.061 R)
• M57: 19,866,597 km (0.036 R)
• M58: 20,990,825 km (0.097 R)
• M59: 21,108,260 km (0.116 R)
• M60: 21,976,376 km (0.087 R)
• M61: 22,494,882 km (0.093 R)
• M62: 22,775,677 km (0.059 R)
• M63: 23,300,317 km (0.091 R)
• M64: 23,543,862 km (0.115 R)
• M65: 24,197,306 km (0.113 R)
• M66: 24,279,435 km (0.11 R)
• M67: 24,815,444 km (0.041 R)
• M68: 25,272,017 km (0.085 R)
• M69: 25,815,057 km (0.112 R)
• M70: 25,941,019 km (0.108 R)
• M71: 26,573,519 km (0.049 R)
• M72: 27,168,469 km (0.079 R)
• M73: 27,296,525 km (0.051 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 309.7

Radius: 5.7

Gravity: 9.53 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 8.97 AU - 14.39 AU

Year: 15284 Days

Day: 20.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (68)

Outer Limit: 51,111,035 km

• M1: 127,158 km (0.107 R)
• M2: 178,919 km (0.119 R)
• M3: 324,179 km (0.08 R)
• M4: 431,889 km (0.099 R)
• M5: 567,574 km (0.071 R)
• M6: 897,288 km (0.064 R)
• M7: 1,386,922 km (0.105 R)
• M8: 1,612,216 km (0.12 R)
• M9: 1,873,414 km (0.117 R)
• M10: 2,303,059 km (0.086 R)
• M11: 2,762,175 km (0.111 R)
• M12: 4,044,079 km (0.043 R)
• M13: 4,139,672 km (0.119 R)
• M14: 4,529,076 km (0.047 R)
• M15: 5,694,742 km (0.053 R)
• M16: 6,310,487 km (0.025 R)
• M17: 6,384,388 km (0.091 R)
• M18: 6,682,537 km (0.111 R)
• M19: 6,909,327 km (0.083 R)
• M20: 7,254,001 km (0.105 R)
• M21: 7,604,359 km (0.114 R)
• M22: 8,281,140 km (0.117 R)
• M23: 8,894,192 km (0.062 R)
• M24: 9,269,084 km (0.067 R)
• M25: 10,250,297 km (0.04 R)
• M26: 10,380,746 km (0.062 R)
• M27: 10,511,644 km (0.098 R)
• M28: 10,996,491 km (0.111 R)
• M29: 11,085,501 km (0.109 R)
• M30: 11,130,082 km (0.09 R)
• M31: 11,624,203 km (0.092 R)
• M32: 14,151,809 km (0.087 R)
• M33: 14,735,689 km (0.118 R)
• M34: 15,030,696 km (0.113 R)
• M35: 15,977,501 km (0.114 R)
• M36: 17,303,986 km (0.064 R)
• M37: 17,667,209 km (0.036 R)
• M38: 17,771,329 km (0.096 R)
• M39: 17,823,539 km (0.119 R)
• M40: 18,984,568 km (0.049 R)
• M41: 19,198,344 km (0.107 R)
• M42: 19,466,573 km (0.066 R)
• M43: 20,061,074 km (0.029 R)
• M44: 20,278,739 km (0.116 R)
• M45: 21,545,534 km (0.08 R)
• M46: 23,293,136 km (0.048 R)
• M47: 23,407,429 km (0.112 R)
• M48: 25,614,297 km (0.106 R)
• M49: 27,041,909 km (0.063 R)
• M50: 27,523,615 km (0.035 R)
• M51: 27,704,927 km (0.105 R)
• M52: 30,035,961 km (0.097 R)
• M53: 30,409,806 km (0.102 R)
• M54: 31,224,965 km (0.07 R)
• M55: 31,603,597 km (0.109 R)
• M56: 34,817,558 km (0.101 R)
• M57: 35,144,579 km (0.081 R)
• M58: 36,131,925 km (0.093 R)
• M59: 36,529,406 km (0.069 R)
• M60: 37,061,676 km (0.119 R)
• M61: 37,261,838 km (0.099 R)
• M62: 38,606,124 km (0.073 R)
• M63: 39,624,586 km (0.1 R)
• M64: 40,034,485 km (0.096 R)
• M65: 41,341,671 km (0.101 R)
• M66: 46,133,440 km (0.08 R)
• M67: 48,229,755 km (0.045 R)
• M68: 48,448,318 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 169.2

Radius: 4.9

Gravity: 7.05 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 13 AU - 16.92 AU

Year: 22155 Days

Day: 23.5 Hours

Environment

Temp: -197 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (96)

Outer Limit: 51,111,035 km

• M1: 174,132 km (0.115 R)
• M2: 500,405 km (0.114 R)
• M3: 614,698 km (0.047 R)
• M4: 946,207 km (0.093 R)
• M5: 1,532,181 km (0.101 R)
• M6: 1,579,454 km (0.082 R)
• M7: 2,025,854 km (0.104 R)
• M8: 2,077,765 km (0.074 R)
• M9: 2,317,121 km (0.052 R)
• M10: 2,371,425 km (0.1 R)
• M11: 2,677,951 km (0.116 R)
• M12: 2,735,098 km (0.054 R)
• M13: 3,236,700 km (0.081 R)
• M14: 3,639,118 km (0.05 R)
• M15: 4,057,393 km (0.1 R)
• M16: 4,222,250 km (0.092 R)
• M17: 4,355,841 km (0.079 R)
• M18: 5,473,038 km (0.098 R)
• M19: 5,545,743 km (0.115 R)
• M20: 6,828,844 km (0.107 R)
• M21: 7,302,770 km (0.087 R)
• M22: 7,463,139 km (0.1 R)
• M23: 7,992,266 km (0.104 R)
• M24: 8,323,775 km (0.083 R)
• M25: 8,914,836 km (0.118 R)
• M26: 9,606,876 km (0.118 R)
• M27: 10,631,472 km (0.071 R)
• M28: 10,904,488 km (0.11 R)
• M29: 11,041,819 km (0.118 R)
• M30: 12,494,414 km (0.099 R)
• M31: 12,638,178 km (0.096 R)
• M32: 12,686,199 km (0.037 R)
• M33: 13,267,386 km (0.081 R)
• M34: 13,807,734 km (0.077 R)
• M35: 14,005,951 km (0.056 R)
• M36: 15,317,476 km (0.104 R)
• M37: 15,884,152 km (0.119 R)
• M38: 16,405,202 km (0.086 R)
• M39: 16,773,212 km (0.041 R)
• M40: 17,357,093 km (0.091 R)
• M41: 17,624,724 km (0.084 R)
• M42: 18,435,694 km (0.087 R)
• M43: 18,763,463 km (0.083 R)
• M44: 19,038,124 km (0.115 R)
• M45: 19,591,337 km (0.107 R)
• M46: 19,814,238 km (0.08 R)
• M47: 19,925,838 km (0.095 R)
• M48: 20,093,836 km (0.078 R)
• M49: 20,149,936 km (0.043 R)
• M50: 20,374,781 km (0.092 R)
• M51: 20,431,180 km (0.035 R)
• M52: 20,600,524 km (0.106 R)
• M53: 21,225,544 km (0.074 R)
• M54: 21,454,279 km (0.098 R)
• M55: 22,261,510 km (0.093 R)
• M56: 22,844,193 km (0.119 R)
• M57: 23,078,613 km (0.064 R)
• M58: 25,103,719 km (0.045 R)
• M59: 25,406,206 km (0.085 R)
• M60: 26,076,106 km (0.037 R)
• M61: 26,137,291 km (0.117 R)
• M62: 27,932,466 km (0.091 R)
• M63: 27,995,147 km (0.103 R)
• M64: 28,876,578 km (0.119 R)
• M65: 29,066,567 km (0.094 R)
• M66: 29,257,005 km (0.059 R)
• M67: 29,639,228 km (0.047 R)
• M68: 29,703,106 km (0.06 R)
• M69: 31,901,447 km (0.104 R)
• M70: 32,887,895 km (0.093 R)
• M71: 33,484,491 km (0.062 R)
• M72: 33,951,087 km (0.118 R)
• M73: 35,566,894 km (0.049 R)
• M74: 36,589,395 km (0.081 R)
• M75: 36,932,423 km (0.093 R)
• M76: 37,414,427 km (0.104 R)
• M77: 37,552,506 km (0.102 R)
• M78: 38,245,444 km (0.11 R)
• M79: 38,733,133 km (0.057 R)
• M80: 39,012,582 km (0.087 R)
• M81: 39,222,767 km (0.096 R)
• M82: 40,420,447 km (0.059 R)
• M83: 41,130,588 km (0.097 R)
• M84: 42,131,697 km (0.088 R)
• M85: 42,347,268 km (0.1 R)
• M86: 43,213,140 km (0.111 R)
• M87: 43,866,434 km (0.086 R)
• M88: 44,011,993 km (0.101 R)
• M89: 44,596,023 km (0.096 R)
• M90: 44,815,782 km (0.114 R)
• M91: 45,182,746 km (0.091 R)
• M92: 45,550,607 km (0.082 R)
• M93: 45,919,515 km (0.089 R)
• M94: 46,215,420 km (0.073 R)
• M95: 46,586,123 km (0.081 R)
• M96: 49,663,052 km (0.083 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 522 - 14,091 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit