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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: 7:38  
clear_day Transit: 11:46  
SunsetSet: 15:54 south
sleep NighttimeWhat's Visible Now?
All Constellations » Serpens » 


Altitude: 5.8°   Azimuth: 262.1°   Direction: West

HR6993 is a variable main-sequence star in the constellation of Serpens.

HR6993 visual magnitude is 5.75. Because of its reltive faintness, HR6993 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 HR6993:


HR6993 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 5.8°
Azimuth: 262.1°
Direction: West

Celestial coordinates and finder chart of HR6993

HR6993 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 HR6993 are provided in the following table:

18h 37m 36s
-00° 18’ 33”

The simplified sky map below shows the position of HR6993 in the sky:

Finder chart HR6993 star
Simplified finder chart for HR6993.

Visibility of HR6993 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 HR6993 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: 90.3°
Max altitude: 38.2°
Azimuth: 269.7°

Digitized Sky Survey image of HR6993

The image below is a photograph of HR6993 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 HR6993 is 0.016 arcsec per year in Right Ascension and -0.019 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR6993 star
DSS2 image of HR6993. The red arrow shows the motion of HR6993 during the next 10000 years (2.67 arcmin in Right Ascension and -3.17 arcmin in declination);

Distance of HR6993 from the Sun and relative movement

HR6993 is distant 644.27 light years from the Sun and it is moving far from the Sun at the speed of 12 kilometers per second.

197.63 pc
644.27 ly
12 km/s
0.016 arcsec/year
-0.019 arcsec/year

Spectral properties of HR6993

HR6993 belongs to spectral class A1 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR6993 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR6993. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR6993