HR4218 is a multiple hypergiant star in the constellation of Hydra.
HR4218 visual magnitude is 6.67. Because of its reltive faintness, HR4218 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 HR4218:
Celestial coordinates and finder chart of HR4218
HR4218 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 HR4218 are provided in the following table:
The simplified sky map below shows the position of HR4218 in the sky:
Visibility of HR4218 from your location
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Today's HR4218 rise, transit and set times from Greenwich, United Kingdom are the following (all times relative to the local timezone Europe/London):
Digitized Sky Survey image of HR4218
The image below is a photograph of HR4218 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 HR4218 is 0.002 arcsec per year in Right Ascension and -0.014 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of HR4218 from the Sun and relative movement
HR4218 is distant 1,963.86 light years from the Sun and it is moving far from the Sun at the speed of 22 kilometers per second.
Spectral properties of HR4218
HR4218 belongs to spectral class A0 and has a luminosity class of III corresponding to a hypergiant star.
The red dot in the diagram below shows where HR4218 is situated in the Hertzsprung–Russell diagram.
HR4218 star system properties
HR4218 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR4218 double sysyem: