HR4491 is a variable giant star in the constellation of Crater.
HR4491 visual magnitude is 6.19. Because of its reltive faintness, HR4491 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 HR4491:
HR4491 is above the horizon from Greenwich, United Kingdom .
Celestial coordinates and finder chart of HR4491
HR4491 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 HR4491 are provided in the following table:
The simplified sky map below shows the position of HR4491 in the sky:
Visibility of HR4491 from your location
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Today's HR4491 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 HR4491
The image below is a photograph of HR4491 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 HR4491 is -0.01 arcsec per year in Right Ascension and -0.009 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of HR4491 from the Sun and relative movement
HR4491 is distant 1,012.42 light years from the Sun and it is moving far from the Sun at the speed of 26 kilometers per second.
Spectral properties of HR4491
HR4491 belongs to spectral class M3 and has a luminosity class of III corresponding to a giant star.
The red dot in the diagram below shows where HR4491 is situated in the Hertzsprung–Russell diagram.