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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: 7:44  
clear_day Transit: 11:48  
SunsetSet: 15:51 south
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All Constellations » Ara » 


Altitude: -58.8°   Azimuth: 245.1°   Direction: West-South-West

HR6622 is a variable and double main-sequence star in the constellation of Ara.

HR6622 visual magnitude is 5.92. Because of its reltive faintness, HR6622 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 HR6622:


HR6622 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -58.8°
Azimuth: 245.1°
Direction: West-South-West

Celestial coordinates and finder chart of HR6622

HR6622 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR6622 are provided in the following table:

17h 50m 28s
-53° 36’ 43”

The simplified sky map below shows the position of HR6622 in the sky:

Finder chart HR6622 star
Simplified finder chart for HR6622.

Visibility of HR6622 from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

HR6622 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR6622

The image below is a photograph of HR6622 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 HR6622 is -0.014 arcsec per year in Right Ascension and -0.006 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR6622 star
DSS2 image of HR6622. The red arrow shows the motion of HR6622 during the next 10000 years (-2.33 arcmin in Right Ascension and -1.00 arcmin in declination);

Distance of HR6622 from the Sun and relative movement

HR6622 is distant 823.23 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

252.53 pc
823.23 ly
-8 km/s
-0.014 arcsec/year
-0.006 arcsec/year

Spectral properties of HR6622

HR6622 belongs to spectral class B2 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR6622 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR6622. Attribution: Richard Powell / CC BY-SA

HR6622 star system properties

HR6622 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 HR6622 double sysyem:

12.3 arcsec

Alternative designations of HR6622