HR1681
HR1681 is a hypergiant star in the constellation of Orion.
HR1681 visual magnitude is 6.1. Because of its reltive faintness, HR1681 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.
The proper motion of HR1681 is 0.001 arcsec per year in Right Ascension and -0.053 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Key facts about HR1681
HR1681 is below the horizon from Greenwich, United Kingdom .
Altitude: -35.9°
Azimuth: 26.9°
Direction: North-North-East
Celestial coordinates and finder chart of HR1681
HR1681 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 HR1681 are provided in the following table:
The simplified sky map below shows the position of HR1681 in the sky:
Visibility of HR1681 from your location
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London
Today's HR1681 rise, transit and set times from Greenwich, United Kingdom are the following (all times relative to the local timezone Europe/London):
Distance of HR1681 from the Sun and relative movement
HR1681 is distant 314.37 light years from the Sun and it is moving far from the Sun at the speed of 26 kilometers per second.
Spectral properties of HR1681
HR1681 belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.
The red dot in the diagram below shows where HR1681 is situated in the Hertzsprung–Russell diagram.