HR2191

HR2191 is a hypergiant star in the constellation of Orion.

HR2191 visual magnitude is 6.04. Because of its reltive faintness, HR2191 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 HR2191:

Color of HR2191 ⬤

Magnitude of HR2191 6.04

Class Hypergiant

VISIBILITY RIGHT NOW HR2191 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 46°.

Celestial coordinates and finder chart of HR2191

HR2191 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 HR2191 are provided in the following table:

Right Ascension J2000 06h 11m 27s

Declination J2000 +13° 38’ 18”

Galactic Longitude 196.25°

Galactic Latitude -2.44°

Constellation Orion

The simplified sky map below shows the position of HR2191 in the sky:

Simplified finder chart for HR2191.

Visibility of HR2191 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 HR2191 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: 76.4° RISE 7:15

Max altitude: 52.2° TRANSIT 14:24

Azimuth: 283.6° SET 21:33

RIGHT NOW HR2191 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR2191

The image below is a photograph of HR2191 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 HR2191 is -0.005 arcsec per year in Right Ascension and -0.017 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR2191. The red arrow shows the motion of HR2191 during the next 10000 years (-0.83 arcmin in Right Ascension and -2.83 arcmin in declination);

Distance of HR2191 from the Sun and relative movement

HR2191 is distant 430.08 light years from the Sun and it is moving far from the Sun at the speed of 13 kilometers per second.

Distance (parsec) 131.93 pc

Distance (light year) 430.08 ly

Heliocentric radial velocity 13 km/s

Proper Motion RA -0.005 arcsec/year

Proper Motion Dec -0.017 arcsec/year

Spectral properties of HR2191

HR2191 belongs to spectral class A0 and has a luminosity class of V corresponding to a hypergiant star.

Absolute magnitude 0.44

Spectral Type A0V

Color Index (B-V) 0

Temperature of HR2191 10125K

The red dot in the diagram below shows where HR2191 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR2191. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR2191

Henry Draper Catalogue HD42477

SAO Catalogue SAO95352

Hipparcos Catalogue HIP29371

Durchmusterung Catalogue BD+13 1151

In Evidence

Other stars in Orion