HR4918

HR4918 is a star in the constellation of Hydra.

HR4918 visual magnitude is 6.31. Because of its reltive faintness, HR4918 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 HR4918:

Color of HR4918 ⬤

Magnitude of HR4918 6.31

Class

VISIBILITY RIGHT NOW HR4918 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR4918

HR4918 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 HR4918 are provided in the following table:

Right Ascension J2000 12h 57m 33s

Declination J2000 -22° 45’ 14”

Galactic Longitude 304.78°

Galactic Latitude 40.1°

Constellation Hydra

The simplified sky map below shows the position of HR4918 in the sky:

Simplified finder chart for HR4918.

Visibility of HR4918 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 HR4918 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: 112.8° RISE 17:17

Max altitude: 15.8° TRANSIT 21:09

Azimuth: 247.2° SET 1:04

RIGHT NOW HR4918 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR4918

The image below is a photograph of HR4918 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 HR4918 is -0.052 arcsec per year in Right Ascension and -0.029 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR4918. The red arrow shows the motion of HR4918 during the next 10000 years (-8.67 arcmin in Right Ascension and -4.83 arcmin in declination);

Distance of HR4918 from the Sun and relative movement

HR4918 is distant 406.99 light years from the Sun and it is moving far from the Sun at the speed of 3 kilometers per second.

Distance (parsec) 124.84 pc

Distance (light year) 406.99 ly

Heliocentric radial velocity 3 km/s

Proper Motion RA -0.052 arcsec/year

Proper Motion Dec -0.029 arcsec/year

Spectral properties of HR4918

HR4918 belongs to spectral class G5

Absolute magnitude 0.83

Spectral Type G5

Color Index (B-V) 1.07

Temperature of HR4918 4581K

The red dot in the diagram below shows where HR4918 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4918. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4918

Henry Draper Catalogue HD112519

SAO Catalogue SAO181265

Hipparcos Catalogue HIP63243

Durchmusterung Catalogue BD-21 3635

In Evidence

Other stars in Hydra