HR6521

HR6521 is a main-sequence star in the constellation of Ophiuchus.

HR6521 visual magnitude is 6.39. Because of its reltive faintness, HR6521 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 HR6521:

Color of HR6521 ⬤

Magnitude of HR6521 6.39

Class Main-sequence

VISIBILITY RIGHT NOW HR6521 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR6521

HR6521 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 HR6521 are provided in the following table:

Right Ascension J2000 17h 30m 22s

Declination J2000 +11° 55’ 30”

Galactic Longitude 34.76°

Galactic Latitude 23.32°

Constellation Ophiuchus

The simplified sky map below shows the position of HR6521 in the sky:

Simplified finder chart for HR6521.

Visibility of HR6521 from your location

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

Today's HR6521 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 78.1° RISE 22:33

Max altitude: 50.4° TRANSIT 5:36

Azimuth: 281.9° SET 12:35

RIGHT NOW HR6521 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR6521

The image below is a photograph of HR6521 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 HR6521 is -0.026 arcsec per year in Right Ascension and 0.053 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR6521. The red arrow shows the motion of HR6521 during the next 10000 years (-4.33 arcmin in Right Ascension and 8.83 arcmin in declination);

Distance of HR6521 from the Sun and relative movement

HR6521 is distant 309.00 light years from the Sun and it is moving towards the Sun at the speed of 25 kilometers per second.

Distance (parsec) 94.79 pc

Distance (light year) 309.00 ly

Heliocentric radial velocity -25 km/s

Proper Motion RA -0.026 arcsec/year

Proper Motion Dec 0.053 arcsec/year

Spectral properties of HR6521

HR6521 belongs to spectral class A1 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude 1.51

Spectral Type A1V

Color Index (B-V) 0.06

Temperature of HR6521 9434K

The red dot in the diagram below shows where HR6521 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6521. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR6521

Henry Draper Catalogue HD158716

SAO Catalogue SAO102869

Hipparcos Catalogue HIP85666

Durchmusterung Catalogue BD+12 3234

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In Evidence

Other stars in Ophiuchus