HR6944

HR6944 is a double hypergiant star in the constellation of Sagittarius.

HR6944 visual magnitude is 5.14. Because of its reltive faintness, HR6944 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 HR6944:

Color of HR6944 ⬤

Magnitude of HR6944 5.14

Class Hypergiant

VISIBILITY RIGHT NOW HR6944 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR6944

HR6944 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 HR6944 are provided in the following table:

Right Ascension J2000 18h 31m 26s

Declination J2000 -18° 24’ 10”

Galactic Longitude 14.3°

Galactic Latitude -4.03°

Constellation Sagittarius

The simplified sky map below shows the position of HR6944 in the sky:

Simplified finder chart for HR6944.

Visibility of HR6944 from your location

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

Today's HR6944 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 108.4° RISE 2:34

Max altitude: 20.1° TRANSIT 6:54

Azimuth: 251.6° SET 11:13

RIGHT NOW HR6944 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR6944

The image below is a photograph of HR6944 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 HR6944 is -0.003 arcsec per year in Right Ascension and -0.025 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR6944. The red arrow shows the motion of HR6944 during the next 10000 years (-0.50 arcmin in Right Ascension and -4.17 arcmin in declination);

Distance of HR6944 from the Sun and relative movement

HR6944 is distant 213.07 light years from the Sun and it is moving towards the Sun at the speed of 37 kilometers per second.

Distance (parsec) 65.36 pc

Distance (light year) 213.07 ly

Heliocentric radial velocity -37 km/s

Proper Motion RA -0.003 arcsec/year

Proper Motion Dec -0.025 arcsec/year

Spectral properties of HR6944

HR6944 belongs to spectral class A0 and has a luminosity class of V corresponding to a hypergiant star.

Absolute magnitude 1.06

Spectral Type A0V

Color Index (B-V) 0

Temperature of HR6944 10125K

The red dot in the diagram below shows where HR6944 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6944. Attribution: Richard Powell / CC BY-SA

HR6944 star system properties

HR6944 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR6944 double sysyem:

Main star magnitude 5.14

Secondary star magnitude 14.04

Magnitude difference 8.9

Separation 25.2 arcsec

Alternative designations of HR6944

Henry Draper Catalogue HD170680

SAO Catalogue SAO161564

Hipparcos Catalogue HIP90806

Durchmusterung Catalogue BD-18 4988

Aitken Double Star Catalogue ADS11411

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