HR4449

HR4449 is a variable giant star in the constellation of Hydra.

HR4449 visual magnitude is 5.04. Because of its reltive faintness, HR4449 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 HR4449:

Color of HR4449 ⬤

Magnitude of HR4449 5.04

Class Giant

VISIBILITY RIGHT NOW HR4449 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR4449

HR4449 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 HR4449 are provided in the following table:

Right Ascension J2000 11h 32m 54s

Declination J2000 -31° 05’ 13”

Galactic Longitude 283.75°

Galactic Latitude 28.84°

Constellation Hydra

The simplified sky map below shows the position of HR4449 in the sky:

Simplified finder chart for HR4449.

Visibility of HR4449 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 HR4449 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: 121.1° RISE 17:10

Max altitude: 7.4° TRANSIT 19:52

Azimuth: 238.9° SET 22:35

RIGHT NOW HR4449 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR4449

The image below is a photograph of HR4449 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 HR4449 is -0.03 arcsec per year in Right Ascension and 0.006 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR4449. The red arrow shows the motion of HR4449 during the next 10000 years (-5.00 arcmin in Right Ascension and 1.00 arcmin in declination);

Distance of HR4449 from the Sun and relative movement

HR4449 is distant 452.78 light years from the Sun and it is moving far from the Sun at the speed of 19 kilometers per second.

Distance (parsec) 138.89 pc

Distance (light year) 452.78 ly

Heliocentric radial velocity 19 km/s

Proper Motion RA -0.03 arcsec/year

Proper Motion Dec 0.006 arcsec/year

Spectral properties of HR4449

HR4449 belongs to spectral class M2 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude -0.67

Spectral Type M2III

Color Index (B-V) 1.58

Temperature of HR4449 3677K

The red dot in the diagram below shows where HR4449 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4449. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4449

Henry Draper Catalogue HD100393

SAO Catalogue SAO202554

Hipparcos Catalogue HIP56332

Durchmusterung Catalogue CD-30 9303

General Catalogue of Variable Stars 5246

In Evidence

Other stars in Hydra