HR846

Altitude: 14.6° Azimuth: 3.8° Direction: North

HR846 is a variable and multiple giant star in the constellation of Perseus.

HR846 visual magnitude is 6.36. Because of its reltive faintness, HR846 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 HR846:

Color of HR846 ⬤

Magnitude of HR846 6.36

Class Giant

VISIBILITY RIGHT NOW

HR846 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 14.6°
Azimuth: 3.8°
Direction: North

Celestial coordinates and finder chart of HR846

HR846 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 HR846 are provided in the following table:

Right Ascension J2000 02h 52m 51s

Declination J2000 +52° 59’ 52”

Galactic Longitude 140.73°

Galactic Latitude -5.63°

Constellation Perseus

The simplified sky map below shows the position of HR846 in the sky:

Simplified finder chart for HR846.

Visibility of HR846 from your location

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

HR846 is circumpolar and transits at 09:54 UTC (altitude: 88.5°)

Digitized Sky Survey image of HR846

The image below is a photograph of HR846 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 HR846 is 0.002 arcsec per year in Right Ascension and -0.011 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR846. The red arrow shows the motion of HR846 during the next 10000 years (0.33 arcmin in Right Ascension and -1.83 arcmin in declination);

Distance of HR846 from the Sun and relative movement

HR846 is distant 1,009.29 light years from the Sun and it is moving far from the Sun at the speed of 1 kilometers per second.

Distance (parsec) 309.60 pc

Distance (light year) 1,009.29 ly

Heliocentric radial velocity 1 km/s

Proper Motion RA 0.002 arcsec/year

Proper Motion Dec -0.011 arcsec/year

Spectral properties of HR846

HR846 belongs to spectral class B8 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude -1.09

Spectral Type B8III

Color Index (B-V) 0.07

Temperature of HR846 9328K

The red dot in the diagram below shows where HR846 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR846. Attribution: Richard Powell / CC BY-SA

HR846 star system properties

HR846 is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the HR846 double sysyem:

Main star magnitude 6.36

Secondary star magnitude 6.56

Magnitude difference 0.2

Separation 1.6 arcsec

Alternative designations of HR846

Henry Draper Catalogue HD17743

SAO Catalogue SAO23674

Hipparcos Catalogue HIP13424

Durchmusterung Catalogue BD+52 640

General Catalogue of Variable Stars 971

Aitken Double Star Catalogue ADS2185

In Evidence

Other stars in Perseus