HR65

HR65 is a variable giant star in the constellation of Cassiopeia.

HR65 visual magnitude is 6.14. Because of its reltive faintness, HR65 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 HR65:

Color of HR65 ⬤

Magnitude of HR65 6.14

Class Giant

VISIBILITY RIGHT NOW HR65 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 76°.

Celestial coordinates and finder chart of HR65

HR65 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 HR65 are provided in the following table:

Right Ascension J2000 00h 17m 43s

Declination J2000 +51° 25’ 59”

Galactic Longitude 117.59°

Galactic Latitude -11.09°

Constellation Cassiopeia

The simplified sky map below shows the position of HR65 in the sky:

Simplified finder chart for HR65.

Visibility of HR65 from your location

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

HR65 is circumpolar and transits at 07:39 UTC (altitude: 90.0°)

Digitized Sky Survey image of HR65

The image below is a photograph of HR65 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 HR65 is -0.005 arcsec per year in Right Ascension and -0.004 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of HR65. The red arrow shows the motion of HR65 during the next 100000 years (-8.33 arcmin in Right Ascension and -6.67 arcmin in declination);

Distance of HR65 from the Sun and relative movement

HR65 is distant 5,719.30 light years from the Sun and it is moving towards the Sun at the speed of 35 kilometers per second.

Distance (parsec) 1,754.39 pc

Distance (light year) 5,719.30 ly

Heliocentric radial velocity -35 km/s

Proper Motion RA -0.005 arcsec/year

Proper Motion Dec -0.004 arcsec/year

Spectral properties of HR65

HR65 belongs to spectral class O9 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude -5.08

Spectral Type O9III

Color Index (B-V) -0.13

Temperature of HR65 12103K

The red dot in the diagram below shows where HR65 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR65. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR65

Henry Draper Catalogue HD1337

SAO Catalogue SAO21273

Hipparcos Catalogue HIP1415

Durchmusterung Catalogue BD+50 46

General Catalogue of Variable Stars AO Cas

In Evidence

Other stars in Cassiopeia