Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:44  
clear_day Transit: 12:57  
SunsetSet: 21:11 south
wb_twilight Astronomical TwilightWhat's Visible Now
All Constellations » Draco » 


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:


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:

12h 18m 49s
+75° 09’ 38”

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

Finder chart HR4687 star
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.

Image of HR4687 star
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.

88.57 pc
288.75 ly
-3 km/s
-0.04 arcsec/year
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.


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

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

Alternative designations of HR4687