HR4498

Altitude: -66.4° Azimuth: 23.5° Direction: North-North-East

HR4498 is a hypergiant star in the constellation of Hydra.

HR4498 visual magnitude is 6.44. Because of its reltive faintness, HR4498 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 HR4498:

Color of HR4498 ⬤

Magnitude of HR4498 6.44

Class Hypergiant

VISIBILITY RIGHT NOW

HR4498 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -66.4°
Azimuth: 23.5°
Direction: North-North-East

Celestial coordinates and finder chart of HR4498

HR4498 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 HR4498 are provided in the following table:

Right Ascension J2000 11h 41m 08s

Declination J2000 -29° 11’ 47”

Galactic Longitude 284.99°

Galactic Latitude 31.21°

Constellation Hydra

The simplified sky map below shows the position of HR4498 in the sky:

Simplified finder chart for HR4498.

Visibility of HR4498 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 HR4498 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: 119.2° RISE 3:33

Max altitude: 9.3° TRANSIT 6:34

Azimuth: 240.8° SET 9:34

Digitized Sky Survey image of HR4498

The image below is a photograph of HR4498 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 HR4498 is -0.324 arcsec per year in Right Ascension and 0.215 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

DSS2 image of HR4498. The red arrow shows the motion of HR4498 during the next 1000 years (-5.40 arcmin in Right Ascension and 3.58 arcmin in declination);

Distance of HR4498 from the Sun and relative movement

HR4498 is distant 135.38 light years from the Sun and it is moving towards the Sun at the speed of 19 kilometers per second.

Distance (parsec) 41.53 pc

Distance (light year) 135.38 ly

Heliocentric radial velocity -19 km/s

Proper Motion RA -0.324 arcsec/year

Proper Motion Dec 0.215 arcsec/year

Spectral properties of HR4498

HR4498 belongs to spectral class G0 and has a luminosity class of V corresponding to a hypergiant star.

Absolute magnitude 3.35

Spectral Type G0V

Color Index (B-V) 0.66

Temperature of HR4498 5742K

The red dot in the diagram below shows where HR4498 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4498. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4498

Henry Draper Catalogue HD101563

SAO Catalogue SAO180098

Hipparcos Catalogue HIP57001

Durchmusterung Catalogue CD-28 9027

Gliese Catalogue NN 3680

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In Evidence

Other stars in Hydra