HR4444

HR4444 is a double main-sequence star in the constellation of Hydra.

HR4444 visual magnitude is 5.64. Because of its reltive faintness, HR4444 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 HR4444:

Color of HR4444 ⬤

Magnitude of HR4444 5.64

Class Main-sequence

VISIBILITY RIGHT NOW HR4444 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR4444

HR4444 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 HR4444 are provided in the following table:

Right Ascension J2000 11h 32m 16s

Declination J2000 -29° 15’ 39”

Galactic Longitude 282.88°

Galactic Latitude 30.51°

Constellation Hydra

The simplified sky map below shows the position of HR4444 in the sky:

Simplified finder chart for HR4444.

Visibility of HR4444 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 HR4444 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: 119.3° RISE 17:00

Max altitude: 9.3° TRANSIT 20:00

Azimuth: 240.7° SET 23:00

RIGHT NOW HR4444 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR4444

The image below is a photograph of HR4444 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 HR4444 is -0.028 arcsec per year in Right Ascension and 0.145 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

DSS2 image of HR4444. The red arrow shows the motion of HR4444 during the next 1000 years (-0.47 arcmin in Right Ascension and 2.42 arcmin in declination);

Spectral properties of HR4444

HR4444 belongs to spectral class F8 and has a luminosity class of V corresponding to a main-sequence star.

Spectral Type F8V

Color Index (B-V) 0.53

Temperature of HR4444 6256K

HR4444 star system properties

HR4444 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 HR4444 double sysyem:

Main star magnitude 5.64

Secondary star magnitude 5.74

Magnitude difference 0.1

Separation 9.3 arcsec

Alternative designations of HR4444

Henry Draper Catalogue HD100287

SAO Catalogue SAO179968

Durchmusterung Catalogue CD-28 8928

Aitken Double Star Catalogue ADS8202

In Evidence