66 Ophiuchi
66 Ophiuchi is a variable main-sequence star in the constellation of Ophiuchus.
66 Ophiuchi visual magnitude is 4.64. Because of its moderate brightness, 66 Ophiuchi should be easily visible from locations with dark skies, while it can be barely visible, or not visible at all, from skies affected by light pollution.
The proper motion of 66 Ophiuchi is 0.003 arcsec per year in Right Ascension and -0.013 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Key facts about 66 Ophiuchi
66 Ophiuchi is above the horizon from Greenwich, United Kingdom.
Altitude: 19.3°
Azimuth: 251.9°
Direction: West-South-West
Celestial coordinates and finder chart of 66 Ophiuchi
66 Ophiuchi is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 66 Ophiuchi are provided in the following table:
The simplified sky map below shows the position of 66 Ophiuchi in the sky:
Visibility of 66 Ophiuchi from your location
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London
Today's 66 Ophiuchi rise, transit and set times from Greenwich, United Kingdom are the following (all times relative to the local timezone Europe/London):
Distance of 66 Ophiuchi from the Sun and relative movement
66 Ophiuchi is distant 676.35 light years from the Sun and it is moving towards the Sun at the speed of 13 kilometers per second.
Spectral properties of 66 Ophiuchi
66 Ophiuchi belongs to spectral class B2 and has a luminosity class of V corresponding to a main-sequence star.
The red dot in the diagram below shows where 66 Ophiuchi is situated in the Hertzsprung–Russell diagram.
