HR1826

HR1826 is a double hypergiant star in the constellation of Orion.

HR1826 visual magnitude is 6.39. Because of its reltive faintness, HR1826 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 HR1826:

Color of HR1826 ⬤

Magnitude of HR1826 6.39

Class Hypergiant

VISIBILITY RIGHT NOW HR1826 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 35°.

Celestial coordinates and finder chart of HR1826

HR1826 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 HR1826 are provided in the following table:

Right Ascension J2000 05h 28m 56s

Declination J2000 -03° 18’ 27”

Galactic Longitude 206.28°

Galactic Latitude -19.83°

Constellation Orion

The simplified sky map below shows the position of HR1826 in the sky:

Simplified finder chart for HR1826.

Visibility of HR1826 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 HR1826 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: 93.3° RISE 8:20

Max altitude: 35.2° TRANSIT 14:01

Azimuth: 266.7° SET 19:43

RIGHT NOW HR1826 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR1826

The image below is a photograph of HR1826 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 HR1826 is -0.035 arcsec per year in Right Ascension and -0.015 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR1826. The red arrow shows the motion of HR1826 during the next 10000 years (-5.83 arcmin in Right Ascension and -2.50 arcmin in declination);

Distance of HR1826 from the Sun and relative movement

HR1826 is distant 761.68 light years from the Sun and it is moving far from the Sun at the speed of 5 kilometers per second.

Distance (parsec) 233.64 pc

Distance (light year) 761.68 ly

Heliocentric radial velocity 5 km/s

Proper Motion RA -0.035 arcsec/year

Proper Motion Dec -0.015 arcsec/year

Spectral properties of HR1826

HR1826 belongs to spectral class A0 and has a luminosity class of V corresponding to a hypergiant star.

Absolute magnitude -0.45

Spectral Type A0V

Color Index (B-V) -0.01

Temperature of HR1826 10252K

The red dot in the diagram below shows where HR1826 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR1826. Attribution: Richard Powell / CC BY-SA

HR1826 star system properties

HR1826 is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the HR1826 double sysyem:

Main star magnitude 6.39

Secondary star magnitude 6.69

Magnitude difference 0.3

Separation 0.8 arcsec

Alternative designations of HR1826

Henry Draper Catalogue HD36058

SAO Catalogue SAO132157

Hipparcos Catalogue HIP25667

Durchmusterung Catalogue BD-03 1115

Aitken Double Star Catalogue ADS4078

In Evidence

Other stars in Orion