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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: 7:47  
clear_day Transit: 11:49  
SunsetSet: 15:50 south
sleep NighttimeWhat's Visible Now?
All Constellations » Serpens » 


Altitude: -41.7°   Azimuth: 9.6°   Direction: North

HR6890 is a giant star in the constellation of Serpens.

HR6890 visual magnitude is 6.38. Because of its reltive faintness, HR6890 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 HR6890:


HR6890 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -41.7°
Azimuth: 9.6°
Direction: North

Celestial coordinates and finder chart of HR6890

HR6890 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 HR6890 are provided in the following table:

18h 24m 03s
-03° 34’ 59”

The simplified sky map below shows the position of HR6890 in the sky:

Finder chart HR6890 star
Simplified finder chart for HR6890.

Visibility of HR6890 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 HR6890 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: 93.6°
Max altitude: 34.9°
Azimuth: 266.4°

Digitized Sky Survey image of HR6890

The image below is a photograph of HR6890 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 HR6890 is -0.025 arcsec per year in Right Ascension and -0.055 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR6890 star
DSS2 image of HR6890. The red arrow shows the motion of HR6890 during the next 10000 years (-4.17 arcmin in Right Ascension and -9.17 arcmin in declination);

Distance of HR6890 from the Sun and relative movement

HR6890 is distant 215.89 light years from the Sun and it is moving towards the Sun at the speed of 17 kilometers per second.

66.23 pc
215.89 ly
-17 km/s
-0.025 arcsec/year
-0.055 arcsec/year

Spectral properties of HR6890

HR6890 belongs to spectral class F6 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR6890 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR6890. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR6890