HR2051

HR2051 is a hypergiant star in the constellation of Orion.

HR2051 visual magnitude is 6.31. Because of its reltive faintness, HR2051 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 HR2051:

Color of HR2051 ⬤

Magnitude of HR2051 6.31

Class Hypergiant

VISIBILITY RIGHT NOW HR2051 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 5°.

Celestial coordinates and finder chart of HR2051

HR2051 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 HR2051 are provided in the following table:

Right Ascension J2000 05h 54m 15s

Declination J2000 +03° 13’ 31”

Galactic Longitude 203.4°

Galactic Latitude -11.17°

Constellation Orion

The simplified sky map below shows the position of HR2051 in the sky:

Simplified finder chart for HR2051.

Visibility of HR2051 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 HR2051 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: 86.8° RISE 8:04

Max altitude: 41.7° TRANSIT 14:19

Azimuth: 273.2° SET 20:33

RIGHT NOW HR2051 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR2051

The image below is a photograph of HR2051 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 HR2051 is 0.053 arcsec per year in Right Ascension and -0.061 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR2051. The red arrow shows the motion of HR2051 during the next 10000 years (8.83 arcmin in Right Ascension and -10.17 arcmin in declination);

Distance of HR2051 from the Sun and relative movement

HR2051 is distant 551.61 light years from the Sun and it is moving towards the Sun at the speed of 4 kilometers per second.

Distance (parsec) 169.20 pc

Distance (light year) 551.61 ly

Heliocentric radial velocity -4 km/s

Proper Motion RA 0.053 arcsec/year

Proper Motion Dec -0.061 arcsec/year

Spectral properties of HR2051

HR2051 belongs to spectral class K0

Absolute magnitude 0.17

Spectral Type K0

Color Index (B-V) 1.29

Temperature of HR2051 4139K

The red dot in the diagram below shows where HR2051 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR2051. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR2051

Henry Draper Catalogue HD39685

SAO Catalogue SAO113253

Hipparcos Catalogue HIP27902

Durchmusterung Catalogue BD+03 1071

In Evidence

Other stars in Orion