HR6704

HR6704 is a hypergiant star in the constellation of Sagittarius.

HR6704 visual magnitude is 6.21. Because of its reltive faintness, HR6704 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 HR6704:

Color of HR6704 ⬤

Magnitude of HR6704 6.21

Class Hypergiant

VISIBILITY RIGHT NOW HR6704 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR6704

HR6704 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 HR6704 are provided in the following table:

Right Ascension J2000 18h 00m 00s

Declination J2000 -20° 20’ 21”

Galactic Longitude 9.06°

Galactic Latitude 1.56°

Constellation Sagittarius

The simplified sky map below shows the position of HR6704 in the sky:

Simplified finder chart for HR6704.

Visibility of HR6704 from your location

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

Today's HR6704 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 110.3° RISE 2:19

Max altitude: 18.2° TRANSIT 6:26

Azimuth: 249.7° SET 10:34

RIGHT NOW HR6704 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR6704

The image below is a photograph of HR6704 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 HR6704 is 0.005 arcsec per year in Right Ascension and -0.007 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of HR6704. The red arrow shows the motion of HR6704 during the next 100000 years (8.33 arcmin in Right Ascension and -11.67 arcmin in declination);

Distance of HR6704 from the Sun and relative movement

HR6704 is distant 857.89 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

Distance (parsec) 263.16 pc

Distance (light year) 857.89 ly

Heliocentric radial velocity -8 km/s

Proper Motion RA 0.005 arcsec/year

Proper Motion Dec -0.007 arcsec/year

Spectral properties of HR6704

HR6704 belongs to spectral class K0 and has a luminosity class of II corresponding to a hypergiant star.

Absolute magnitude -0.89

Spectral Type K0II

Color Index (B-V) 1.4

Temperature of HR6704 3950K

The red dot in the diagram below shows where HR6704 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6704. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR6704

Henry Draper Catalogue HD164028

SAO Catalogue SAO186070

Hipparcos Catalogue HIP88125

Durchmusterung Catalogue BD-20 4940

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In Evidence

Other stars in Sagittarius