HR4557 is a double main-sequence star in the constellation of Centaurus.
HR4557 visual magnitude is 6.46. Because of its reltive faintness, HR4557 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 HR4557:
Celestial coordinates and finder chart of HR4557
HR4557 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4557 are provided in the following table:
The simplified sky map below shows the position of HR4557 in the sky:
Visibility of HR4557 from your location
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Today's HR4557 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 HR4557
The image below is a photograph of HR4557 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 HR4557 is -0.309 arcsec per year in Right Ascension and 0.06 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.
Distance of HR4557 from the Sun and relative movement
HR4557 is distant 151.63 light years from the Sun and it is moving towards the Sun at the speed of 12 kilometers per second.
Spectral properties of HR4557
HR4557 belongs to spectral class F7 and has a luminosity class of V corresponding to a main-sequence star.
The red dot in the diagram below shows where HR4557 is situated in the Hertzsprung–Russell diagram.
HR4557 star system properties
HR4557 is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the HR4557 double sysyem: