<P> For British observers, for example, the first magnitude stars Capella (declination + 45 ° 59') and Deneb (+ 45 ° 16') do not set from anywhere in the country . Vega (+ 38 ° 47') is technically circumpolar north of latitude + 51 ° 13' (just south of London); taking atmospheric refraction into account, it will probably only be seen to set at sea level from Cornwall and the Scilly Isles . </P> <P> Some stars within the far southern constellations (such as Crux, Musca, and Hydrus) roughly south of the Tropic of Capricorn (- 231⁄2 °) will also be circumpolar stars . </P> <P> Stars (and constellations) that are circumpolar in one hemisphere are always invisible in the high latitudes of the opposite hemisphere, and these never rise above the horizon . For example, the southern circumpolar star Acrux is invisible from most of the Contiguous United States, likewise, the seven stars of the northern circumpolar Big Dipper asterism are invisible from most of the Patagonia region of South America . </P>

What two places on earth are there nothing but circumpolar stars