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: 4:47  
clear_day Transit: 12:56  
SunsetSet: 21:06 south
sunny DaytimeWhat's Visible Now
All Constellations » Orion » 


HR1987 is a double giant star in the constellation of Orion.

HR1987 visual magnitude is 5.79. Because of its reltive faintness, HR1987 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 HR1987:

HR1987 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 36°.

Celestial coordinates and finder chart of HR1987

HR1987 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 HR1987 are provided in the following table:

05h 46m 52s
+09° 31’ 19”

The simplified sky map below shows the position of HR1987 in the sky:

Finder chart HR1987 star
Simplified finder chart for HR1987.

Visibility of HR1987 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 HR1987 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: 80.5°
Max altitude: 48.0°
Azimuth: 279.5°
HR1987 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR1987

The image below is a photograph of HR1987 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 HR1987 is -0.034 arcsec per year in Right Ascension and -0.065 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR1987 star
DSS2 image of HR1987. The red arrow shows the motion of HR1987 during the next 10000 years (-5.67 arcmin in Right Ascension and -10.83 arcmin in declination);

Distance of HR1987 from the Sun and relative movement

HR1987 is distant 299.63 light years from the Sun and it is moving towards the Sun at the speed of 26 kilometers per second.

91.91 pc
299.63 ly
-26 km/s
-0.034 arcsec/year
-0.065 arcsec/year

Spectral properties of HR1987

HR1987 belongs to spectral class G8 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR1987 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR1987. Attribution: Richard Powell / CC BY-SA

HR1987 star system properties

HR1987 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 HR1987 double sysyem:

17.2 arcsec

Alternative designations of HR1987