HR4044

HR4044 is a double giant star in the constellation of Ursa Major.

HR4044 visual magnitude is 6.43. Because of its reltive faintness, HR4044 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 HR4044:

Color of HR4044 ⬤

Magnitude of HR4044 6.43

Class Giant

VISIBILITY RIGHT NOW HR4044 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 47°.

Celestial coordinates and finder chart of HR4044

HR4044 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 HR4044 are provided in the following table:

Right Ascension J2000 10h 18m 59s

Declination J2000 +46° 45’ 38”

Galactic Longitude 169.34°

Galactic Latitude 54.28°

Constellation Ursa Major

The simplified sky map below shows the position of HR4044 in the sky:

Simplified finder chart for HR4044.

Visibility of HR4044 from your location

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

HR4044 is circumpolar and transits at 22:22 UTC (altitude: 85.3°)

Digitized Sky Survey image of HR4044

The image below is a photograph of HR4044 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 HR4044 is -0.021 arcsec per year in Right Ascension and -0.03 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR4044. The red arrow shows the motion of HR4044 during the next 10000 years (-3.50 arcmin in Right Ascension and -5.00 arcmin in declination);

Distance of HR4044 from the Sun and relative movement

HR4044 is distant 829.52 light years from the Sun and it is moving towards the Sun at the speed of 21 kilometers per second.

Distance (parsec) 254.45 pc

Distance (light year) 829.52 ly

Heliocentric radial velocity -21 km/s

Proper Motion RA -0.021 arcsec/year

Proper Motion Dec -0.03 arcsec/year

Spectral properties of HR4044

HR4044 belongs to spectral class K1 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude -0.60

Spectral Type K1III

Color Index (B-V)

Temperature of HR4044 10125K

The red dot in the diagram below shows where HR4044 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4044. Attribution: Richard Powell / CC BY-SA

HR4044 star system properties

HR4044 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR4044 double sysyem:

Main star magnitude 6.43

Secondary star magnitude 12.13

Magnitude difference 5.7

Separation 27.8 arcsec

Alternative designations of HR4044

Henry Draper Catalogue HD89268

SAO Catalogue SAO43281

Hipparcos Catalogue HIP50509

Durchmusterung Catalogue BD+47 1761

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In Evidence

Other stars in Ursa Major