HR4687

Altitude: 50.6° Azimuth: 336.4° Direction: North-North-West

HR4687 is a main-sequence star in the constellation of Draco.

HR4687 visual magnitude is 5.38. Because of its reltive faintness, HR4687 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 HR4687:

Color of HR4687 ⬤

Magnitude of HR4687 5.38

Class Main-sequence

VISIBILITY RIGHT NOW

HR4687 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 50.6°
Azimuth: 336.4°
Direction: North-North-West

Celestial coordinates and finder chart of HR4687

HR4687 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 HR4687 are provided in the following table:

Right Ascension J2000 12h 18m 49s

Declination J2000 +75° 09’ 38”

Galactic Longitude 125.72°

Galactic Latitude 41.79°

Constellation Draco

The simplified sky map below shows the position of HR4687 in the sky:

Simplified finder chart for HR4687.

Visibility of HR4687 from your location

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

HR4687 is circumpolar and transits at 19:11 UTC (altitude: 66.3°)

Digitized Sky Survey image of HR4687

The image below is a photograph of HR4687 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 HR4687 is -0.04 arcsec per year in Right Ascension and 0.002 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR4687. The red arrow shows the motion of HR4687 during the next 10000 years (-6.67 arcmin in Right Ascension and 0.33 arcmin in declination);

Distance of HR4687 from the Sun and relative movement

HR4687 is distant 288.75 light years from the Sun and it is moving towards the Sun at the speed of 3 kilometers per second.

Distance (parsec) 88.57 pc

Distance (light year) 288.75 ly

Heliocentric radial velocity -3 km/s

Proper Motion RA -0.04 arcsec/year

Proper Motion Dec 0.002 arcsec/year

Spectral properties of HR4687

HR4687 belongs to spectral class A1 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude 0.64

Spectral Type A1V

Color Index (B-V) -0.02

Temperature of HR4687 10382K

The red dot in the diagram below shows where HR4687 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4687. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4687

Henry Draper Catalogue HD107193

SAO Catalogue SAO7540

Hipparcos Catalogue HIP60044

Durchmusterung Catalogue BD+75 470

FK5 Catalogue 2986

In Evidence

Other stars in Draco