HR5818

Altitude: 55.2° Azimuth: 299.1° Direction: West-North-West

HR5818 is a variable main-sequence star in the constellation of Draco.

HR5818 visual magnitude is 5.74. Because of its reltive faintness, HR5818 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 HR5818:

Color of HR5818 ⬤

Magnitude of HR5818 5.74

Class Main-sequence

VISIBILITY RIGHT NOW

HR5818 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 55.2°
Azimuth: 299.1°
Direction: West-North-West

Celestial coordinates and finder chart of HR5818

HR5818 is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR5818 are provided in the following table:

Right Ascension J2000 15h 35m 57s

Declination J2000 +54° 37’ 50”

Galactic Longitude 87.08°

Galactic Latitude 49.45°

Constellation Draco

The simplified sky map below shows the position of HR5818 in the sky:

Simplified finder chart for HR5818.

Visibility of HR5818 from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

HR5818 is circumpolar and transits at 22:27 UTC (altitude: 86.8°)

Digitized Sky Survey image of HR5818

The image below is a photograph of HR5818 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 HR5818 is -0.035 arcsec per year in Right Ascension and -0.01 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR5818. The red arrow shows the motion of HR5818 during the next 10000 years (-5.83 arcmin in Right Ascension and -1.67 arcmin in declination);

Distance of HR5818 from the Sun and relative movement

HR5818 is distant 246.22 light years from the Sun and it is moving towards the Sun at the speed of 19 kilometers per second.

Distance (parsec) 75.53 pc

Distance (light year) 246.22 ly

Heliocentric radial velocity -19 km/s

Proper Motion RA -0.035 arcsec/year

Proper Motion Dec -0.01 arcsec/year

Spectral properties of HR5818

HR5818 belongs to spectral class A2 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude 1.35

Spectral Type A2V

Color Index (B-V)

Temperature of HR5818 10125K

The red dot in the diagram below shows where HR5818 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR5818. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR5818

Henry Draper Catalogue HD139493

SAO Catalogue SAO29588

Hipparcos Catalogue HIP76376

Durchmusterung Catalogue BD+55 1766

General Catalogue of Variable Stars 7163

In Evidence

Other stars in Draco