HR4694

HR4694 is a variable hypergiant star in the constellation of Coma Berenices.

HR4694 visual magnitude is 6.15. Because of its reltive faintness, HR4694 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 HR4694:

Color of HR4694 ⬤

Magnitude of HR4694 6.15

Class Hypergiant

VISIBILITY RIGHT NOW HR4694 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 13°.

Celestial coordinates and finder chart of HR4694

HR4694 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 HR4694 are provided in the following table:

Right Ascension J2000 12h 20m 17s

Declination J2000 +26° 00’ 06”

Galactic Longitude 220.37°

Galactic Latitude 82.95°

Constellation Coma Berenices

The simplified sky map below shows the position of HR4694 in the sky:

Simplified finder chart for HR4694.

Visibility of HR4694 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 HR4694 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: 64.0° RISE 12:03

Max altitude: 64.5° TRANSIT 20:32

Azimuth: 296.0° SET 5:04

RIGHT NOW HR4694 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR4694

The image below is a photograph of HR4694 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 HR4694 is -0.145 arcsec per year in Right Ascension and 0.019 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

DSS2 image of HR4694. The red arrow shows the motion of HR4694 during the next 1000 years (-2.42 arcmin in Right Ascension and 0.32 arcmin in declination);

Distance of HR4694 from the Sun and relative movement

HR4694 is distant 197.58 light years from the Sun and it is moving far from the Sun at the speed of 8 kilometers per second.

Distance (parsec) 60.61 pc

Distance (light year) 197.58 ly

Heliocentric radial velocity 8 km/s

Proper Motion RA -0.145 arcsec/year

Proper Motion Dec 0.019 arcsec/year

Spectral properties of HR4694

HR4694 belongs to spectral class F0 and has a luminosity class of IV corresponding to a hypergiant star.

Absolute magnitude 2.24

Spectral Type F0IV

Color Index (B-V) 0.3

Temperature of HR4694 7462K

The red dot in the diagram below shows where HR4694 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4694. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4694

Henry Draper Catalogue HD107326

SAO Catalogue SAO82249

Hipparcos Catalogue HIP60168

Durchmusterung Catalogue BD+26 2329

Gliese Catalogue Gl 460

General Catalogue of Variable Stars 5557

In Evidence

Other stars in Coma Berenices