HR2109

Altitude: -12.1° Azimuth: 283.2° Direction: West-North-West

HR2109 is a giant star in the constellation of Orion.

HR2109 visual magnitude is 6.63. Because of its reltive faintness, HR2109 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 HR2109:

Color of HR2109 ⬤

Magnitude of HR2109 6.63

Class Giant

VISIBILITY RIGHT NOW

HR2109 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -12.1°
Azimuth: 283.2°
Direction: West-North-West

Celestial coordinates and finder chart of HR2109

HR2109 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 HR2109 are provided in the following table:

Right Ascension J2000 05h 59m 37s

Declination J2000 -01° 26’ 39”

Galactic Longitude 208.25°

Galactic Latitude -12.18°

Constellation Orion

The simplified sky map below shows the position of HR2109 in the sky:

Simplified finder chart for HR2109.

Visibility of HR2109 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 HR2109 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: 91.4° RISE 19:34

Max altitude: 37.1° TRANSIT 1:28

Azimuth: 268.6° SET 7:19

Digitized Sky Survey image of HR2109

The image below is a photograph of HR2109 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 HR2109 is -0.009 arcsec per year in Right Ascension and -0.02 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR2109. The red arrow shows the motion of HR2109 during the next 10000 years (-1.50 arcmin in Right Ascension and -3.33 arcmin in declination);

Distance of HR2109 from the Sun and relative movement

HR2109 is distant 1,906.43 light years from the Sun and it is moving towards the Sun at the speed of 4 kilometers per second.

Distance (parsec) 584.80 pc

Distance (light year) 1,906.43 ly

Heliocentric radial velocity -4 km/s

Proper Motion RA -0.009 arcsec/year

Proper Motion Dec -0.02 arcsec/year

Spectral properties of HR2109

HR2109 belongs to spectral class B8 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude -2.21

Spectral Type B8III

Color Index (B-V) -0.07

Temperature of HR2109 11092K

The red dot in the diagram below shows where HR2109 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR2109. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR2109

Henry Draper Catalogue HD40574

SAO Catalogue SAO132723

Hipparcos Catalogue HIP28370

Durchmusterung Catalogue BD-01 1083

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In Evidence

Other stars in Orion