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: 4:50  
clear_day Transit: 12:56  
SunsetSet: 21:02 south
sunny DaytimeWhat's Visible Now
All Constellations » Hydra » 


HR4068 is a giant star in the constellation of Hydra.

HR4068 visual magnitude is 6.51. Because of its reltive faintness, HR4068 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 HR4068:

HR4068 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 9°.

Celestial coordinates and finder chart of HR4068

HR4068 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4068 are provided in the following table:

10h 21m 07s
-17° 59’ 05”

The simplified sky map below shows the position of HR4068 in the sky:

Finder chart HR4068 star
Simplified finder chart for HR4068.

Visibility of HR4068 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 HR4068 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: 108.0°
Max altitude: 20.5°
Azimuth: 252.0°
HR4068 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR4068

The image below is a photograph of HR4068 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 HR4068 is -0.051 arcsec per year in Right Ascension and -0.028 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4068 star
DSS2 image of HR4068. The red arrow shows the motion of HR4068 during the next 10000 years (-8.50 arcmin in Right Ascension and -4.67 arcmin in declination);

Distance of HR4068 from the Sun and relative movement

HR4068 is distant 189.10 light years from the Sun and it is moving far from the Sun at the speed of 23 kilometers per second.

58.00 pc
189.10 ly
23 km/s
-0.051 arcsec/year
-0.028 arcsec/year

Spectral properties of HR4068

HR4068 belongs to spectral class F3 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR4068 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4068. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4068