HR4409

HR4409 is a double hypergiant star in the constellation of Centaurus.

HR4409 visual magnitude is 5.22. Because of its reltive faintness, HR4409 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 HR4409:

Color of HR4409 ⬤

Magnitude of HR4409 5.22

Class Hypergiant

VISIBILITY RIGHT NOW HR4409 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR4409

HR4409 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4409 are provided in the following table:

Right Ascension J2000 11h 25m 29s

Declination J2000 -36° 03’ 47”

Galactic Longitude 284.08°

Galactic Latitude 23.64°

Constellation Centaurus

The simplified sky map below shows the position of HR4409 in the sky:

Simplified finder chart for HR4409.

Visibility of HR4409 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 HR4409 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: 126.1° RISE 18:14

Max altitude: 2.5° TRANSIT 19:49

Azimuth: 233.9° SET 21:24

RIGHT NOW HR4409 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR4409

The image below is a photograph of HR4409 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 HR4409 is -0.113 arcsec per year in Right Ascension and 0.02 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

DSS2 image of HR4409. The red arrow shows the motion of HR4409 during the next 1000 years (-1.88 arcmin in Right Ascension and 0.33 arcmin in declination);

Distance of HR4409 from the Sun and relative movement

HR4409 is distant 280.07 light years from the Sun and it is moving far from the Sun at the speed of 4 kilometers per second.

Distance (parsec) 85.91 pc

Distance (light year) 280.07 ly

Heliocentric radial velocity 4 km/s

Proper Motion RA -0.113 arcsec/year

Proper Motion Dec 0.02 arcsec/year

Spectral properties of HR4409

HR4409 belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.

Absolute magnitude 0.55

Spectral Type K0III

Color Index (B-V) 0.99

Temperature of HR4409 4767K

The red dot in the diagram below shows where HR4409 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4409. Attribution: Richard Powell / CC BY-SA

HR4409 star system properties

HR4409 is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the HR4409 double sysyem:

Main star magnitude 5.22

Secondary star magnitude 9.82

Magnitude difference 4.6

Separation 1.3 arcsec

Alternative designations of HR4409

Henry Draper Catalogue HD99322

SAO Catalogue SAO202428

Hipparcos Catalogue HIP55756

Durchmusterung Catalogue CD-35 7189

In Evidence

Other stars in Centaurus