HR6540

Altitude: 33.8° Azimuth: 37.2° Direction: North-East

HR6540 is a giant star in the constellation of Draco.

HR6540 visual magnitude is 6.4. Because of its reltive faintness, HR6540 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 HR6540:

Color of HR6540 ⬤

Magnitude of HR6540 6.4

Class Giant

VISIBILITY RIGHT NOW

HR6540 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 33.8°
Azimuth: 37.2°
Direction: North-East

Celestial coordinates and finder chart of HR6540

HR6540 is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR6540 are provided in the following table:

Right Ascension J2000 17h 30m 43s

Declination J2000 +57° 52’ 35”

Galactic Longitude 86.25°

Galactic Latitude 33.33°

Constellation Draco

The simplified sky map below shows the position of HR6540 in the sky:

Simplified finder chart for HR6540.

Visibility of HR6540 from your location

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

HR6540 is circumpolar and transits at 12:34 UTC (altitude: 83.6°)

Digitized Sky Survey image of HR6540

The image below is a photograph of HR6540 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 HR6540 is 0.03 arcsec per year in Right Ascension and -0.03 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR6540. The red arrow shows the motion of HR6540 during the next 10000 years (5.00 arcmin in Right Ascension and -5.00 arcmin in declination);

Distance of HR6540 from the Sun and relative movement

HR6540 is distant 1,156.03 light years from the Sun and it is moving towards the Sun at the speed of 14 kilometers per second.

Distance (parsec) 354.61 pc

Distance (light year) 1,156.03 ly

Heliocentric radial velocity -14 km/s

Proper Motion RA 0.03 arcsec/year

Proper Motion Dec -0.03 arcsec/year

Spectral properties of HR6540

HR6540 belongs to spectral class K2 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude -1.35

Spectral Type K2III

Color Index (B-V)

Temperature of HR6540 10125K

The red dot in the diagram below shows where HR6540 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6540. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR6540

Henry Draper Catalogue HD159330

SAO Catalogue SAO30434

Hipparcos Catalogue HIP85692

Durchmusterung Catalogue BD+57 1774

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In Evidence

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