🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.32

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 1.19 AU - 1.67 AU

Year: 651 Days

Day: 32.5 Hours

Environment

Temp: -42 °C

Axial Tilt: 38 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 52,871,196 km

• M1: 923,019 km (0.071 R)
• M2: 1,063,641 km (0.112 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.26

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.66 AU - 2.3 AU

Year: 1061 Days

Day: 26.3 Hours

Environment

Temp: -77 °C

Axial Tilt: 29.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.86 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 5.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 951.6

Radius: 12.7

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 5.42 AU - 6.06 AU

Year: 5237 Days

Day: 5.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (82)

Outer Limit: 52,871,196 km

• M1: 173,982 km (0.076 R)
• M2: 328,816 km (0.11 R)
• M3: 477,217 km (0.081 R)
• M4: 812,316 km (0.1 R)
• M5: 1,138,889 km (0.067 R)
• M6: 1,351,617 km (0.072 R)
• M7: 1,454,390 km (0.091 R)
• M8: 1,577,958 km (0.08 R)
• M9: 1,686,566 km (0.042 R)
• M10: 1,835,715 km (0.118 R)
• M11: 2,187,570 km (0.114 R)
• M12: 3,090,842 km (0.084 R)
• M13: 3,298,334 km (0.081 R)
• M14: 3,751,615 km (0.111 R)
• M15: 4,250,375 km (0.074 R)
• M16: 5,310,425 km (0.085 R)
• M17: 5,927,217 km (0.089 R)
• M18: 6,041,809 km (0.118 R)
• M19: 7,197,902 km (0.058 R)
• M20: 7,816,938 km (0.119 R)
• M21: 7,911,334 km (0.06 R)
• M22: 8,485,490 km (0.052 R)
• M23: 8,908,703 km (0.076 R)
• M24: 9,172,444 km (0.112 R)
• M25: 10,391,517 km (0.058 R)
• M26: 10,704,176 km (0.088 R)
• M27: 11,126,042 km (0.072 R)
• M28: 11,267,861 km (0.084 R)
• M29: 11,374,674 km (0.111 R)
• M30: 11,986,081 km (0.108 R)
• M31: 12,095,137 km (0.075 R)
• M32: 12,387,452 km (0.059 R)
• M33: 12,719,110 km (0.083 R)
• M34: 13,428,952 km (0.115 R)
• M35: 13,883,879 km (0.115 R)
• M36: 14,653,411 km (0.077 R)
• M37: 14,770,097 km (0.097 R)
• M38: 14,887,083 km (0.104 R)
• M39: 15,318,523 km (0.068 R)
• M40: 15,436,855 km (0.086 R)
• M41: 15,555,635 km (0.103 R)
• M42: 16,233,912 km (0.1 R)
• M43: 17,578,348 km (0.117 R)
• M44: 17,909,558 km (0.118 R)
• M45: 18,201,124 km (0.035 R)
• M46: 18,578,410 km (0.103 R)
• M47: 19,340,611 km (0.109 R)
• M48: 19,511,302 km (0.103 R)
• M49: 19,940,499 km (0.108 R)
• M50: 20,459,454 km (0.084 R)
• M51: 22,043,246 km (0.113 R)
• M52: 22,490,245 km (0.114 R)
• M53: 23,075,771 km (0.096 R)
• M54: 23,256,934 km (0.068 R)
• M55: 23,575,128 km (0.118 R)
• M56: 23,711,861 km (0.084 R)
• M57: 24,445,938 km (0.118 R)
• M58: 25,094,444 km (0.097 R)
• M59: 25,374,192 km (0.032 R)
• M60: 25,608,014 km (0.061 R)
• M61: 27,121,496 km (0.077 R)
• M62: 28,178,853 km (0.075 R)
• M63: 28,324,113 km (0.088 R)
• M64: 28,615,230 km (0.062 R)
• M65: 28,858,776 km (0.11 R)
• M66: 28,956,313 km (0.086 R)
• M67: 29,102,770 km (0.111 R)
• M68: 29,396,730 km (0.113 R)
• M69: 29,642,369 km (0.07 R)
• M70: 29,839,240 km (0.11 R)
• M71: 30,532,177 km (0.114 R)
• M72: 30,880,740 km (0.08 R)
• M73: 31,030,488 km (0.087 R)
• M74: 31,180,385 km (0.028 R)
• M75: 31,430,961 km (0.084 R)
• M76: 31,682,136 km (0.072 R)
• M77: 32,287,708 km (0.084 R)
• M78: 32,999,046 km (0.042 R)
• M79: 33,152,235 km (0.081 R)
• M80: 34,333,759 km (0.082 R)
• M81: 34,540,802 km (0.12 R)
• M82: 34,748,145 km (0.12 R)

Planet 4 - Ice Giant

Semi-Major Axis: 11.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 490.4

Radius: 3.1

Gravity: 51.03 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 9.18 AU - 14.72 AU

Year: 15731 Days

Day: 24.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (73)

Outer Limit: 52,871,196 km

• M1: 214,972 km (0.099 R)
• M2: 725,849 km (0.087 R)
• M3: 848,220 km (0.085 R)
• M4: 1,066,334 km (0.108 R)
• M5: 1,252,882 km (0.087 R)
• M6: 1,449,603 km (0.053 R)
• M7: 1,500,317 km (0.068 R)
• M8: 1,577,510 km (0.105 R)
• M9: 2,124,290 km (0.055 R)
• M10: 2,269,549 km (0.116 R)
• M11: 2,298,870 km (0.083 R)
• M12: 2,569,343 km (0.105 R)
• M13: 2,661,795 km (0.096 R)
• M14: 3,074,685 km (0.111 R)
• M15: 6,142,189 km (0.111 R)
• M16: 6,265,757 km (0.082 R)
• M17: 6,307,196 km (0.067 R)
• M18: 6,390,223 km (0.053 R)
• M19: 6,473,549 km (0.086 R)
• M20: 6,810,742 km (0.038 R)
• M21: 8,035,051 km (0.026 R)
• M22: 8,215,317 km (0.11 R)
• M23: 8,718,265 km (0.087 R)
• M24: 9,610,018 km (0.116 R)
• M25: 9,705,611 km (0.114 R)
• M26: 10,236,833 km (0.042 R)
• M27: 11,630,786 km (0.083 R)
• M28: 13,295,361 km (0.03 R)
• M29: 13,562,094 km (0.043 R)
• M30: 13,776,767 km (0.08 R)
• M31: 18,003,655 km (0.119 R)
• M32: 18,595,165 km (0.092 R)
• M33: 18,654,705 km (0.084 R)
• M34: 20,346,507 km (0.117 R)
• M35: 21,334,900 km (0.099 R)
• M36: 23,358,361 km (0.105 R)
• M37: 24,588,355 km (0.107 R)
• M38: 25,508,083 km (0.074 R)
• M39: 25,905,714 km (0.1 R)
• M40: 26,506,050 km (0.065 R)
• M41: 27,245,811 km (0.075 R)
• M42: 27,516,584 km (0.093 R)
• M43: 27,788,253 km (0.071 R)
• M44: 28,402,502 km (0.064 R)
• M45: 28,539,683 km (0.074 R)
• M46: 30,622,983 km (0.054 R)
• M47: 30,763,605 km (0.074 R)
• M48: 30,904,377 km (0.064 R)
• M49: 32,253,002 km (0.118 R)
• M50: 32,539,332 km (0.088 R)
• M51: 32,898,367 km (0.038 R)
• M52: 33,186,642 km (0.095 R)
• M53: 34,420,974 km (0.102 R)
• M54: 35,154,153 km (0.104 R)
• M55: 36,635,621 km (0.117 R)
• M56: 36,784,920 km (0.112 R)
• M57: 37,684,900 km (0.093 R)
• M58: 38,819,899 km (0.11 R)
• M59: 38,895,895 km (0.078 R)
• M60: 41,200,899 km (0.049 R)
• M61: 41,278,391 km (0.092 R)
• M62: 41,356,032 km (0.106 R)
• M63: 42,057,048 km (0.084 R)
• M64: 44,740,235 km (0.045 R)
• M65: 45,059,627 km (0.055 R)
• M66: 45,780,688 km (0.069 R)
• M67: 48,785,362 km (0.062 R)
• M68: 51,101,137 km (0.107 R)
• M69: 51,769,390 km (0.057 R)
• M70: 57,131,576 km (0.088 R)
• M71: 57,218,044 km (0.066 R)
• M72: 57,391,278 km (0.106 R)
• M73: 57,477,895 km (0.073 R)

Planet 5 - Ice Giant

Semi-Major Axis: 12.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 622.5

Radius: 6.4

Gravity: 15.2 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 11.97 AU - 12.63 AU

Year: 16427 Days

Day: 19.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (78)

Outer Limit: 52,871,196 km

• M1: 117,434 km (0.083 R)
• M2: 319,691 km (0.115 R)
• M3: 2,090,481 km (0.061 R)
• M4: 2,151,816 km (0.059 R)
• M5: 2,402,841 km (0.056 R)
• M6: 2,467,018 km (0.038 R)
• M7: 2,663,291 km (0.103 R)
• M8: 3,175,664 km (0.085 R)
• M9: 3,353,236 km (0.043 R)
• M10: 4,367,211 km (0.044 R)
• M11: 4,485,393 km (0.067 R)
• M12: 4,846,373 km (0.056 R)
• M13: 5,300,103 km (0.044 R)
• M14: 5,853,914 km (0.1 R)
• M15: 6,159,692 km (0.03 R)
• M16: 6,336,667 km (0.077 R)
• M17: 6,470,557 km (0.071 R)
• M18: 6,650,673 km (0.026 R)
• M19: 7,015,691 km (0.061 R)
• M20: 8,589,012 km (0.114 R)
• M21: 8,786,930 km (0.111 R)
• M22: 10,847,042 km (0.028 R)
• M23: 11,114,673 km (0.093 R)
• M24: 11,222,383 km (0.095 R)
• M25: 11,276,388 km (0.097 R)
• M26: 11,330,393 km (0.116 R)
• M27: 11,820,625 km (0.096 R)
• M28: 12,541,089 km (0.102 R)
• M29: 13,447,203 km (0.081 R)
• M30: 13,734,581 km (0.104 R)
• M31: 16,350,449 km (0.095 R)
• M32: 17,276,460 km (0.111 R)
• M33: 17,338,842 km (0.096 R)
• M34: 17,401,224 km (0.073 R)
• M35: 18,156,245 km (0.072 R)
• M36: 20,550,110 km (0.055 R)
• M37: 20,616,232 km (0.109 R)
• M38: 22,223,063 km (0.075 R)
• M39: 22,290,831 km (0.088 R)
• M40: 23,247,509 km (0.103 R)
• M41: 23,661,596 km (0.085 R)
• M42: 26,484,059 km (0.053 R)
• M43: 27,061,208 km (0.066 R)
• M44: 27,206,168 km (0.119 R)
• M45: 27,934,710 km (0.118 R)
• M46: 28,301,374 km (0.061 R)
• M47: 29,262,091 km (0.11 R)
• M48: 32,515,546 km (0.116 R)
• M49: 33,210,877 km (0.104 R)
• M50: 33,521,442 km (0.052 R)
• M51: 33,754,964 km (0.107 R)
• M52: 34,616,199 km (0.11 R)
• M53: 35,881,498 km (0.057 R)
• M54: 38,132,198 km (0.108 R)
• M55: 39,110,568 km (0.076 R)
• M56: 40,262,621 km (0.091 R)
• M57: 41,175,468 km (0.086 R)
• M58: 42,263,194 km (0.118 R)
• M59: 42,431,342 km (0.032 R)
• M60: 42,852,759 km (0.113 R)
• M61: 43,699,632 km (0.073 R)
• M62: 46,446,997 km (0.114 R)
• M63: 47,055,262 km (0.073 R)
• M64: 47,753,884 km (0.098 R)
• M65: 52,467,264 km (0.114 R)
• M66: 52,557,622 km (0.033 R)
• M67: 52,738,485 km (0.05 R)
• M68: 53,191,617 km (0.097 R)
• M69: 53,282,274 km (0.102 R)
• M70: 54,192,726 km (0.094 R)
• M71: 55,752,434 km (0.079 R)
• M72: 57,699,151 km (0.091 R)
• M73: 58,821,584 km (0.103 R)
• M74: 60,898,152 km (0.038 R)
• M75: 61,563,862 km (0.105 R)
• M76: 62,327,559 km (0.076 R)
• M77: 63,286,781 km (0.109 R)
• M78: 64,637,650 km (0.102 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 721.1

Radius: 4.5

Gravity: 35.61 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 11.99 AU - 13.35 AU

Year: 17174 Days

Day: 16.6 Hours

Environment

Temp: -180 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (91)

Outer Limit: 52,871,196 km

• M1: 62,233 km (0.06 R)
• M2: 136,583 km (0.108 R)
• M3: 383,270 km (0.119 R)
• M4: 908,508 km (0.117 R)
• M5: 1,031,926 km (0.113 R)
• M6: 1,160,879 km (0.117 R)
• M7: 1,726,659 km (0.074 R)
• M8: 1,848,880 km (0.085 R)
• M9: 2,365,591 km (0.071 R)
• M10: 2,570,391 km (0.091 R)
• M11: 2,816,479 km (0.096 R)
• M12: 3,794,700 km (0.081 R)
• M13: 4,653,990 km (0.096 R)
• M14: 6,258,577 km (0.096 R)
• M15: 6,305,401 km (0.064 R)
• M16: 6,779,925 km (0.081 R)
• M17: 7,762,933 km (0.075 R)
• M18: 9,804,196 km (0.04 R)
• M19: 10,022,309 km (0.026 R)
• M20: 10,911,220 km (0.074 R)
• M21: 10,967,618 km (0.107 R)
• M22: 11,194,259 km (0.091 R)
• M23: 11,422,246 km (0.12 R)
• M24: 11,479,542 km (0.088 R)
• M25: 13,785,893 km (0.107 R)
• M26: 14,461,626 km (0.106 R)
• M27: 14,585,643 km (0.086 R)
• M28: 15,590,342 km (0.034 R)
• M29: 16,293,901 km (0.117 R)
• M30: 16,358,378 km (0.085 R)
• M31: 16,747,033 km (0.093 R)
• M32: 16,877,333 km (0.036 R)
• M33: 17,931,250 km (0.092 R)
• M34: 19,346,445 km (0.101 R)
• M35: 20,240,442 km (0.066 R)
• M36: 20,379,120 km (0.093 R)
• M37: 21,500,206 km (0.046 R)
• M38: 22,497,575 km (0.061 R)
• M39: 22,929,614 km (0.104 R)
• M40: 23,074,275 km (0.057 R)
• M41: 23,728,765 km (0.111 R)
• M42: 24,463,141 km (0.083 R)
• M43: 24,759,046 km (0.039 R)
• M44: 25,728,590 km (0.116 R)
• M45: 26,180,375 km (0.07 R)
• M46: 26,634,704 km (0.097 R)
• M47: 27,704,927 km (0.084 R)
• M48: 29,101,423 km (0.085 R)
• M49: 29,179,663 km (0.102 R)
• M50: 30,361,785 km (0.111 R)
• M51: 30,918,888 km (0.092 R)
• M52: 31,158,693 km (0.062 R)
• M53: 32,123,899 km (0.026 R)
• M54: 32,691,473 km (0.112 R)
• M55: 32,854,236 km (0.097 R)
• M56: 33,507,978 km (0.063 R)
• M57: 34,745,302 km (0.105 R)
• M58: 35,411,312 km (0.091 R)
• M59: 36,925,242 km (0.118 R)
• M60: 37,179,559 km (0.09 R)
• M61: 37,349,502 km (0.085 R)
• M62: 40,102,851 km (0.056 R)
• M63: 40,451,563 km (0.113 R)
• M64: 41,152,130 km (0.08 R)
• M65: 41,680,061 km (0.114 R)
• M66: 42,210,236 km (0.077 R)
• M67: 42,298,948 km (0.074 R)
• M68: 42,476,221 km (0.04 R)
• M69: 43,009,837 km (0.108 R)
• M70: 44,533,641 km (0.103 R)
• M71: 44,714,056 km (0.079 R)
• M72: 45,075,783 km (0.118 R)
• M73: 45,166,290 km (0.086 R)
• M74: 46,531,819 km (0.095 R)
• M75: 48,095,715 km (0.067 R)
• M76: 49,583,317 km (0.071 R)
• M77: 49,676,815 km (0.099 R)
• M78: 49,770,314 km (0.1 R)
• M79: 50,239,004 km (0.109 R)
• M80: 50,426,749 km (0.115 R)
• M81: 53,559,628 km (0.078 R)
• M82: 54,810,865 km (0.099 R)
• M83: 57,048,250 km (0.087 R)
• M84: 58,030,360 km (0.103 R)
• M85: 59,216,073 km (0.09 R)
• M86: 60,310,082 km (0.092 R)
• M87: 61,210,213 km (0.084 R)
• M88: 64,242,262 km (0.109 R)
• M89: 67,737,317 km (0.118 R)
• M90: 68,256,422 km (0.052 R)
• M91: 68,568,633 km (0.09 R)

Planet 7 - Ice Giant

Semi-Major Axis: 15.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 170.9

Radius: 7

Gravity: 3.49 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 12.09 AU - 18.87 AU

Year: 23193 Days

Day: 19.4 Hours

Environment

Temp: -196 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 52,871,196 km

• M1: 91,703 km (0.116 R)
• M2: 193,879 km (0.08 R)
• M3: 375,191 km (0.113 R)
• M4: 767,886 km (0.058 R)
• M5: 882,328 km (0.115 R)
• M6: 1,043,744 km (0.09 R)
• M7: 2,336,270 km (0.088 R)
• M8: 2,647,284 km (0.108 R)
• M9: 2,822,463 km (0.065 R)
• M10: 3,308,058 km (0.09 R)
• M11: 3,402,155 km (0.12 R)
• M12: 3,497,000 km (0.104 R)
• M13: 4,017,750 km (0.12 R)
• M14: 4,219,258 km (0.095 R)
• M15: 4,458,615 km (0.051 R)
• M16: 4,950,493 km (0.111 R)
• M17: 5,683,074 km (0.093 R)
• M18: 6,527,404 km (0.118 R)
• M19: 7,044,564 km (0.074 R)
• M20: 7,369,341 km (0.089 R)
• M21: 7,991,668 km (0.105 R)
• M22: 9,374,551 km (0.115 R)
• M23: 9,821,699 km (0.084 R)
• M24: 10,184,473 km (0.101 R)
• M25: 10,597,812 km (0.083 R)
• M26: 10,783,314 km (0.065 R)
• M27: 11,016,686 km (0.077 R)
• M28: 11,440,946 km (0.065 R)
• M29: 15,074,529 km (0.109 R)
• M30: 15,335,427 km (0.115 R)
• M31: 15,387,936 km (0.095 R)
• M32: 15,545,313 km (0.113 R)
• M33: 15,703,288 km (0.1 R)
• M34: 15,809,054 km (0.055 R)
• M35: 17,421,719 km (0.11 R)
• M36: 18,973,498 km (0.119 R)
• M37: 19,198,792 km (0.069 R)
• M38: 20,916,475 km (0.105 R)
• M39: 21,032,713 km (0.112 R)
• M40: 22,325,687 km (0.071 R)
• M41: 23,041,662 km (0.114 R)
• M42: 23,282,066 km (0.1 R)
• M43: 24,129,837 km (0.065 R)
• M44: 24,496,352 km (0.115 R)
• M45: 24,987,781 km (0.12 R)
• M46: 25,172,983 km (0.063 R)
• M47: 26,733,439 km (0.086 R)
• M48: 27,493,396 km (0.104 R)
• M49: 27,748,460 km (0.038 R)
• M50: 27,876,217 km (0.081 R)
• M51: 29,424,555 km (0.081 R)
• M52: 29,685,304 km (0.082 R)
• M53: 30,012,474 km (0.076 R)
• M54: 30,736,079 km (0.047 R)
• M55: 31,932,713 km (0.104 R)
• M56: 32,469,470 km (0.07 R)
• M57: 32,536,789 km (0.085 R)
• M58: 33,483,893 km (0.11 R)
• M59: 33,756,161 km (0.099 R)
• M60: 34,097,394 km (0.048 R)
• M61: 34,783,599 km (0.08 R)
• M62: 35,405,029 km (0.099 R)
• M63: 35,474,293 km (0.106 R)
• M64: 36,309,049 km (0.08 R)
• M65: 36,518,785 km (0.076 R)
• M66: 36,728,970 km (0.062 R)
• M67: 37,150,387 km (0.037 R)
• M68: 38,068,918 km (0.101 R)
• M69: 39,209,752 km (0.087 R)
• M70: 39,784,357 km (0.102 R)
• M71: 39,928,569 km (0.059 R)
• M72: 40,145,037 km (0.092 R)
• M73: 40,579,021 km (0.117 R)
• M74: 40,724,131 km (0.085 R)
• M75: 41,014,799 km (0.095 R)
• M76: 41,451,924 km (0.104 R)
• M77: 42,037,301 km (0.026 R)
• M78: 42,846,625 km (0.083 R)
• M79: 42,994,278 km (0.075 R)
• M80: 43,438,435 km (0.086 R)
• M81: 43,809,736 km (0.106 R)
• M82: 43,884,087 km (0.082 R)
• M83: 44,032,936 km (0.112 R)
• M84: 44,256,585 km (0.057 R)
• M85: 45,606,407 km (0.041 R)
• M86: 46,893,547 km (0.036 R)
• M87: 47,274,423 km (0.095 R)
• M88: 47,962,573 km (0.09 R)
• M89: 48,730,908 km (0.093 R)
• M90: 49,968,980 km (0.118 R)
• M91: 50,124,412 km (0.1 R)
• M92: 50,435,875 km (0.105 R)
• M93: 51,217,225 km (0.105 R)
• M94: 51,609,470 km (0.092 R)
• M95: 52,871,179 km (0.097 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: 346 - 16,089 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit