HR6777

Altitude: -1.3° Azimuth: 147.2° Direction: South-South-East

HR6777 is a hypergiant star in the constellation of Sagittarius.

HR6777 visual magnitude is 6.43. Because of its reltive faintness, HR6777 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 HR6777:

Color of HR6777 ⬤

Magnitude of HR6777 6.43

Class Hypergiant

VISIBILITY RIGHT NOW

HR6777 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -1.3°
Azimuth: 147.2°
Direction: South-South-East

Celestial coordinates and finder chart of HR6777

HR6777 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 HR6777 are provided in the following table:

Right Ascension J2000 18h 09m 59s

Declination J2000 -32° 43’ 10”

Galactic Longitude 359.32°

Galactic Latitude -6.42°

Constellation Sagittarius

The simplified sky map below shows the position of HR6777 in the sky:

Simplified finder chart for HR6777.

Visibility of HR6777 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 HR6777 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: 122.7° RISE 10:26

Max altitude: 5.8° TRANSIT 12:50

Azimuth: 237.3° SET 15:14

Digitized Sky Survey image of HR6777

The image below is a photograph of HR6777 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 HR6777 is 0.001 arcsec per year in Right Ascension and -0.149 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

DSS2 image of HR6777. The red arrow shows the motion of HR6777 during the next 1000 years (0.02 arcmin in Right Ascension and -2.48 arcmin in declination);

Distance of HR6777 from the Sun and relative movement

HR6777 is distant 364.65 light years from the Sun and it is moving far from the Sun at the speed of 10 kilometers per second.

Distance (parsec) 111.86 pc

Distance (light year) 364.65 ly

Heliocentric radial velocity 10 km/s

Proper Motion RA 0.001 arcsec/year

Proper Motion Dec -0.149 arcsec/year

Spectral properties of HR6777

HR6777 belongs to spectral class K0 and has a luminosity class of IV corresponding to a hypergiant star.

Absolute magnitude 1.19

Spectral Type K0IV

Color Index (B-V) 1.02

Temperature of HR6777 4695K

The red dot in the diagram below shows where HR6777 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6777. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR6777

Henry Draper Catalogue HD165978

SAO Catalogue SAO209794

Hipparcos Catalogue HIP89010

Durchmusterung Catalogue CD-3213814

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In Evidence

Other stars in Sagittarius