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: 6:44  
clear_day Transit: 12:51  
SunsetSet: 18:57 south
sunny DaytimeWhat's Visible Now
All Constellations » Ophiuchus » 


Altitude: 15.1°   Azimuth: 121.1°   Direction: East-South-East

HR5990 is a double hypergiant star in the constellation of Ophiuchus.

HR5990 visual magnitude is 6.41. Because of its reltive faintness, HR5990 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 HR5990:


HR5990 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 15.1°
Azimuth: 121.1°
Direction: East-South-East

Celestial coordinates and finder chart of HR5990

HR5990 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 HR5990 are provided in the following table:

16h 05m 59s
-06° 08’ 21”

The simplified sky map below shows the position of HR5990 in the sky:

Finder chart HR5990 star
Simplified finder chart for HR5990.

Visibility of HR5990 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 HR5990 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: 96.1°
Max altitude: 32.4°
Azimuth: 263.9°

Digitized Sky Survey image of HR5990

The image below is a photograph of HR5990 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 HR5990 is -0.03 arcsec per year in Right Ascension and 0.004 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR5990 star
DSS2 image of HR5990. The red arrow shows the motion of HR5990 during the next 10000 years (-5.00 arcmin in Right Ascension and 0.67 arcmin in declination);

Distance of HR5990 from the Sun and relative movement

HR5990 is distant 347.18 light years from the Sun and it is moving towards the Sun at the speed of 32 kilometers per second.

106.50 pc
347.18 ly
-32 km/s
-0.03 arcsec/year
0.004 arcsec/year

Spectral properties of HR5990

HR5990 belongs to spectral class K0


The red dot in the diagram below shows where HR5990 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR5990. Attribution: Richard Powell / CC BY-SA

HR5990 star system properties

HR5990 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 HR5990 double sysyem:

9.3 arcsec

Alternative designations of HR5990