Parsecs to UK Nautical Miles


Tell us what you think of the new site..


Astronomers used trigonometry to calculate the distance to stars long before the term parsec was coined, but the new unit made it easier to conceptualise unfathomable distances.

A parsec is the distance from the sun to an astronomical object which has a parallax angle of one arcsecond (1/3600 of a degree). The parallax angle is found by measuring the parallax motion (or apparent movement of a star relative to stable, more distant stars) when the star is observed from opposite sides of the Sun (an interval of six months on Earth). The parallax angle is obtained by halving the angular difference in measurements.

Once the parallax angle is established you can calculate the distance to a star using trigonometry, because we know Earth’s distance from the Sun. The distance from the Sun of a body with a parallax angle of 1 arcsecond was thus defined as a unit and, thanks to Turner, named the parsec.

With the parsec defined, deriving and describing huge distances became easy, since a distance in parsecs can be calculated as the reciprocal of the parallax angle in arcseconds (if the parallax angle is 1 arcsecond, the object is 1 pc from the sun. 0.5 arcseconds means the object is 2 pc distant).

More information >>

UK nmi =
pc * 16651000000000

UK Nautical Miles

Nautical miles measure distance. 1 nautical mile is the angular distance of 1 minute of arc on the earth's surface. As these differ slightly (6108' at pole c.f. 6046' at equator) 6080 was adopted (this being it's approximate value in the English Channel). The International nautical mile is 1852 metres, so is very slightly different from the UK nautical mile.

Mobile phone converter app

Metric Conversion Table

Online Calculator

Pársecs a Millas marinas británicas :: Parsecs en Milles marins britanniques :: Parsec in Britische Seemeilen :: Parsecs em Milhas marinas britânicas :: Parsecs a Miglia marine imperiali :: Parsecs naar Imperiale Zeemijlen :: Парсеки в Морские мили (Великобритания) :: 秒差距 到 英式海裏 :: 秒差距 到 英式海里 :: パーセク から イギリスの法定海里 :: 파섹에서 영국 해상 마일으로 :: Parsec till Brittiska Nautiska mil :: Parsecs til Britiske nautiske mil :: Parsec til Britiske sømil :: Parsec do Námořní míle (Velká Británie) :: Parsec a Milles marines britàniques :: Παρσέκ για Αμερικανικά Ναυτικά Μίλια :: Parseki do Mile morskie (UK) :: Parsek v Britanska milja :: Parsec do Námorná míľa (Veľká Británia) :: Parszek to Britt tengeri mérföld :: Парсеки в Морски мили (Великобритания) :: Parsecs em Milhas náuticas :: Parallaksisekuntit = Brittiläiset merimailit :: Парсеци у Британске наутичке миље :: Parsekai įDB Jūrmylės :: पारसेक्स से ब्रिटेन नौटिकल मील को :: Parseci u Britanske nautičke milje :: парсэкi ў Марскія мілі (Вялікабрытанія) :: Parsek në Milje detare britanike :: Парсеки в Морські милі (Великобританія)