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: 4:46  
clear_day Transit: 12:56  
SunsetSet: 21:07 south
sunny DaytimeWhat's Visible Now
All Constellations » Hydra » 


Altitude: 25.6°   Azimuth: 164.9°   Direction: South-South-East

HR4160 is a hypergiant star in the constellation of Hydra.

HR4160 visual magnitude is 6.52. Because of its reltive faintness, HR4160 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 HR4160:


HR4160 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 25.6°
Azimuth: 164.9°
Direction: South-South-East

Celestial coordinates and finder chart of HR4160

HR4160 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 HR4160 are provided in the following table:

10h 37m 11s
-11° 44’ 54”

The simplified sky map below shows the position of HR4160 in the sky:

Finder chart HR4160 star
Simplified finder chart for HR4160.

Visibility of HR4160 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 HR4160 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: 101.7°
Max altitude: 26.8°
Azimuth: 258.3°
HR4160 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR4160

The image below is a photograph of HR4160 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 HR4160 is -0.051 arcsec per year in Right Ascension and -0.032 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4160 star
DSS2 image of HR4160. The red arrow shows the motion of HR4160 during the next 10000 years (-8.50 arcmin in Right Ascension and -5.33 arcmin in declination);

Distance of HR4160 from the Sun and relative movement

HR4160 is distant 217.04 light years from the Sun and it is moving far from the Sun at the speed of 9 kilometers per second.

66.58 pc
217.04 ly
9 km/s
-0.051 arcsec/year
-0.032 arcsec/year

Spectral properties of HR4160

HR4160 belongs to spectral class F0 and has a luminosity class of V corresponding to a hypergiant star.


The red dot in the diagram below shows where HR4160 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4160. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4160