HR4927

Altitude: 57.6° Azimuth: 22.9° Direction: North-North-East

HR4927 is a hypergiant star in the constellation of Draco.

HR4927 visual magnitude is 6.01. Because of its reltive faintness, HR4927 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 HR4927:

Color of HR4927 ⬤

Magnitude of HR4927 6.01

Class Hypergiant

VISIBILITY RIGHT NOW

HR4927 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 57.6°
Azimuth: 22.9°
Direction: North-North-East

Celestial coordinates and finder chart of HR4927

HR4927 is situated close to the northern celestial pole and, as such, it is visible for most part of the year from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4927 are provided in the following table:

Right Ascension J2000 12h 58m 47s

Declination J2000 +75° 28’ 20”

Galactic Longitude 122.32°

Galactic Latitude 41.65°

Constellation Draco

The simplified sky map below shows the position of HR4927 in the sky:

Simplified finder chart for HR4927.

Visibility of HR4927 from your location

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

HR4927 is circumpolar and transits at 08:22 UTC (altitude: 66.0°)

Digitized Sky Survey image of HR4927

The image below is a photograph of HR4927 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 HR4927 is 0.008 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 HR4927. The red arrow shows the motion of HR4927 during the next 10000 years (1.33 arcmin in Right Ascension and 1.67 arcmin in declination);

Distance of HR4927 from the Sun and relative movement

HR4927 is distant 477.31 light years from the Sun and it is moving towards the Sun at the speed of 15 kilometers per second.

Distance (parsec) 146.41 pc

Distance (light year) 477.31 ly

Heliocentric radial velocity -15 km/s

Proper Motion RA 0.008 arcsec/year

Proper Motion Dec 0.01 arcsec/year

Spectral properties of HR4927

HR4927 belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.

Absolute magnitude 0.18

Spectral Type K0III

Color Index (B-V) 0.99

Temperature of HR4927 4767K

The red dot in the diagram below shows where HR4927 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4927. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4927

Henry Draper Catalogue HD113049

SAO Catalogue SAO7714

Hipparcos Catalogue HIP63340

Durchmusterung Catalogue BD+76 473

FK5 Catalogue 3037

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In Evidence

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