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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
north SunriseRise: 7:43  
clear_day Transit: 11:47  
SunsetSet: 15:52 south
wb_twilight Civil TwilightWhat's Visible Now?
All Constellations » Eridanus » 


Altitude: -18.8°   Azimuth: 96.4°   Direction: East

HR997 is a double hypergiant star in the constellation of Eridanus.

HR997 visual magnitude is 5.71. Because of its reltive faintness, HR997 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 HR997:


HR997 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -18.8°
Azimuth: 96.4°
Direction: East

Celestial coordinates and finder chart of HR997

HR997 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 HR997 are provided in the following table:

03h 18m 41s
-18° 33’ 34”

The simplified sky map below shows the position of HR997 in the sky:

Finder chart HR997 star
Simplified finder chart for HR997.

Visibility of HR997 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 HR997 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: 108.6°
Max altitude: 20.0°
Azimuth: 251.4°

Digitized Sky Survey image of HR997

The image below is a photograph of HR997 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 HR997 is 0.136 arcsec per year in Right Ascension and -0.053 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR997 star
DSS2 image of HR997. The red arrow shows the motion of HR997 during the next 1000 years (2.27 arcmin in Right Ascension and -0.88 arcmin in declination);

Distance of HR997 from the Sun and relative movement

HR997 is distant 119.28 light years from the Sun and it is moving far from the Sun at the speed of 18 kilometers per second.

36.59 pc
119.28 ly
18 km/s
0.136 arcsec/year
-0.053 arcsec/year

Spectral properties of HR997

HR997 belongs to spectral class F0 and has a luminosity class of IV corresponding to a hypergiant star.


The red dot in the diagram below shows where HR997 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR997. Attribution: Richard Powell / CC BY-SA

HR997 star system properties

HR997 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 HR997 double sysyem:

7.2 arcsec

Alternative designations of HR997