HR85

HR85 is a variable bright giant star in the constellation of Cetus.

HR85 visual magnitude is 5.12. Because of its reltive faintness, HR85 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 HR85:

Color of HR85 ⬤

Magnitude of HR85 5.12

Class Bright giant

VISIBILITY RIGHT NOW HR85 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR85

HR85 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 HR85 are provided in the following table:

Right Ascension J2000 00h 21m 46s

Declination J2000 -20° 03’ 28”

Galactic Longitude 77.51°

Galactic Latitude -80.2°

Constellation Cetus

The simplified sky map below shows the position of HR85 in the sky:

Simplified finder chart for HR85.

Visibility of HR85 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 HR85 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: 110.1° RISE 4:34

Max altitude: 18.5° TRANSIT 8:43

Azimuth: 249.9° SET 12:53

RIGHT NOW HR85 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR85

The image below is a photograph of HR85 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 HR85 is 0.071 arcsec per year in Right Ascension and -0.005 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR85. The red arrow shows the motion of HR85 during the next 10000 years (11.83 arcmin in Right Ascension and -0.83 arcmin in declination);

Distance of HR85 from the Sun and relative movement

HR85 is distant 774.35 light years from the Sun and it is moving far from the Sun at the speed of 29 kilometers per second.

Distance (parsec) 237.53 pc

Distance (light year) 774.35 ly

Heliocentric radial velocity 29 km/s

Proper Motion RA 0.071 arcsec/year

Proper Motion Dec -0.005 arcsec/year

Spectral properties of HR85

HR85 belongs to spectral class M5 and has a luminosity class of II corresponding to a bright giant star.

Absolute magnitude -1.76

Spectral Type M5II

Color Index (B-V) 1.82

Temperature of HR85 3368K

The red dot in the diagram below shows where HR85 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR85. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR85

Henry Draper Catalogue HD1760

SAO Catalogue SAO166210

Hipparcos Catalogue HIP1728

Durchmusterung Catalogue BD-20 50

General Catalogue of Variable Stars T Cet

In Evidence

Other stars in Cetus