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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: 6:42  
clear_day Transit: 12:10  
SunsetSet: 17:40
sunny DaytimeWhat's Visible Now?
All Constellations » Coma Berenices » 

HR4987

Altitude: -16.7°   Azimuth: 336.3°   Direction: North-North-West

HR4987 is a giant star in the constellation of Coma Berenices.

HR4987 visual magnitude is 6.53. Because of its reltive faintness, HR4987 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 HR4987 is -0.065 arcsec per year in Right Ascension and -0.003 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4987 star
DSS2 image of HR4987. The red arrow shows the motion of HR4987 during the next 10000 years (-10.83 arcmin in Right Ascension and -0.50 arcmin in declination);

Key facts about HR4987

6.53
Giant

HR4987 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -16.7°
Azimuth: 336.3°
Direction: North-North-West

Celestial coordinates and finder chart of HR4987

HR4987 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 HR4987 are provided in the following table:

13h 12m 35s
+18° 45’ 06”
334.19°
80.31°
Coma Berenices

The simplified sky map below shows the position of HR4987 in the sky:

Finder chart HR4987 star
Simplified finder chart for HR4987.

Visibility of HR4987 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 HR4987 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: 71.2°
Max altitude: 57.3°
Azimuth: 288.8°

Distance of HR4987 from the Sun and relative movement

HR4987 is distant 349.79 light years from the Sun and it is moving towards the Sun at the speed of 20 kilometers per second.

107.30 pc
349.79 ly
-20 km/s
-0.065 arcsec/year
-0.003 arcsec/year

Spectral properties of HR4987

HR4987 belongs to spectral class G8 and has a luminosity class of III corresponding to a giant star.

1.38
G8III
5051K

The red dot in the diagram below shows where HR4987 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR4987. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4987

SAO100461
SAO100461