HR4998 is a double hypergiant star in the constellation of Virgo.
HR4998 visual magnitude is 5.67. Because of its reltive faintness, HR4998 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 HR4998:
HR4998 is above the horizon from Greenwich, United Kingdom .
Celestial coordinates and finder chart of HR4998
HR4998 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 HR4998 are provided in the following table:
The simplified sky map below shows the position of HR4998 in the sky:
Visibility of HR4998 from your location
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Today's HR4998 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 HR4998
The image below is a photograph of HR4998 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 HR4998 is 0.074 arcsec per year in Right Ascension and -0.052 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of HR4998 from the Sun and relative movement
HR4998 is distant 507.00 light years from the Sun and it is moving far from the Sun at the speed of 12 kilometers per second.
Spectral properties of HR4998
HR4998 belongs to spectral class M0 and has a luminosity class of III corresponding to a hypergiant star.
The red dot in the diagram below shows where HR4998 is situated in the Hertzsprung–Russell diagram.
HR4998 star system properties
HR4998 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR4998 double sysyem: