HR218

HR218 is a giant star in the constellation of Cetus.

HR218 visual magnitude is 5.7. Because of its reltive faintness, HR218 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about HR218:

Color of HR218 ⬤

Magnitude of HR218 5.7

Class Giant

VISIBILITY RIGHT NOW HR218 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 20°.

Celestial coordinates and finder chart of HR218

HR218 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 HR218 are provided in the following table:

Right Ascension J2000 00h 47m 43s

Declination J2000 -18° 03’ 41”

Galactic Longitude 117.34°

Galactic Latitude -80.89°

Constellation Cetus

The simplified sky map below shows the position of HR218 in the sky:

Simplified finder chart for HR218.

Visibility of HR218 from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's HR218 rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 108.1° RISE 4:59

Max altitude: 20.5° TRANSIT 9:21

Azimuth: 251.9° SET 13:43

RIGHT NOW HR218 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR218

The image below is a photograph of HR218 from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of HR218 is 0.043 arcsec per year in Right Ascension and 0.031 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR218. The red arrow shows the motion of HR218 during the next 10000 years (7.17 arcmin in Right Ascension and 5.17 arcmin in declination);

Distance of HR218 from the Sun and relative movement

HR218 is distant 401.97 light years from the Sun and it is moving far from the Sun at the speed of 2 kilometers per second.

Distance (parsec) 123.30 pc

Distance (light year) 401.97 ly

Heliocentric radial velocity 2 km/s

Proper Motion RA 0.043 arcsec/year

Proper Motion Dec 0.031 arcsec/year

Spectral properties of HR218

HR218 belongs to spectral class K3 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude 0.25

Spectral Type K3III

Color Index (B-V) 1.3

Temperature of HR218 4121K

The red dot in the diagram below shows where HR218 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR218. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR218

Henry Draper Catalogue HD4585

SAO Catalogue SAO147451

Hipparcos Catalogue HIP3717

Durchmusterung Catalogue BD-18 127

In Evidence

Other stars in Cetus