Your guide to the Solar System and the night sky
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🌎  Observing from: Greenwich, United Kingdom [change]

HR4727

HR4727 is a double giant star in the constellation of Draco.

HR4727 visual magnitude is 6.32. Because of its reltive faintness, HR4727 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 HR4727:

6.32
Giant
HR4727 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 78°.

Celestial coordinates and finder chart of HR4727

HR4727 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 HR4727 are provided in the following table:

12h 25m 06s
+63° 48’ 10”
127.76°
53.08°
Draco

The simplified sky map below shows the position of HR4727 in the sky:

Finder chart HR4727 star
Simplified finder chart for HR4727.

Visibility of HR4727 from your location

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

HR4727 is circumpolar and transits at 03:21 UTC (altitude: 77.7°)

Digitized Sky Survey image of HR4727

The image below is a photograph of HR4727 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 HR4727 is -0.015 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 HR4727 star
DSS2 image of HR4727. The red arrow shows the motion of HR4727 during the next 10000 years (-2.50 arcmin in Right Ascension and 0.33 arcmin in declination);

Distance of HR4727 from the Sun and relative movement

HR4727 is distant 515.82 light years from the Sun and it is moving towards the Sun at the speed of 4 kilometers per second.

158.23 pc
515.82 ly
-4 km/s
-0.015 arcsec/year
0.002 arcsec/year

Spectral properties of HR4727

HR4727 belongs to spectral class G8 and has a luminosity class of III corresponding to a giant star.

0.32
G8III
4970K

The red dot in the diagram below shows where HR4727 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4727. Attribution: Richard Powell / CC BY-SA

HR4727 star system properties

HR4727 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR4727 double sysyem:

6.32
10.02
3.7
52.3 arcsec

Alternative designations of HR4727

SAO15801
SAO15801