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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:55  
clear_day Transit: 12:11  
SunsetSet: 17:29
sunny DaytimeWhat's Visible Now?
All Constellations » Hydra » 


Altitude: -8.2°   Azimuth: 237.1°   Direction: West-South-West

HR5120 is a multiple giant star in the constellation of Hydra.

HR5120 visual magnitude is 5.78. Because of its reltive faintness, HR5120 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR5120 is -0.091 arcsec per year in Right Ascension and 0.021 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR5120 star
DSS2 image of HR5120. The red arrow shows the motion of HR5120 during the next 1000 years (-1.52 arcmin in Right Ascension and 0.35 arcmin in declination);

Key facts about HR5120


HR5120 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -8.2°
Azimuth: 237.1°
Direction: West-South-West

Celestial coordinates and finder chart of HR5120

HR5120 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR5120 are provided in the following table:

13h 36m 48s
-26° 29’ 42”

The simplified sky map below shows the position of HR5120 in the sky:

Finder chart HR5120 star
Simplified finder chart for HR5120.

Visibility of HR5120 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 HR5120 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: 116.5°
Max altitude: 12.0°
Azimuth: 243.5°

Distance of HR5120 from the Sun and relative movement

HR5120 is distant 386.26 light years from the Sun and it is moving towards the Sun at the speed of 10 kilometers per second.

118.48 pc
386.26 ly
-10 km/s
-0.091 arcsec/year
0.021 arcsec/year

Spectral properties of HR5120

HR5120 belongs to spectral class A7 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR5120 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR5120. Attribution: Richard Powell / CC BY-SA

HR5120 star system properties

HR5120 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR5120 double sysyem:

10.1 arcsec

Alternative designations of HR5120