HR3724

Altitude: -37.5° Azimuth: 51.9° Direction: North-East

HR3724 is a variable and multiple star in the constellation of Hydra.

HR3724 visual magnitude is 6.53. Because of its reltive faintness, HR3724 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 HR3724:

Color of HR3724 ⬤

Magnitude of HR3724 6.53

Class

VISIBILITY RIGHT NOW

HR3724 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -37.5°
Azimuth: 51.9°
Direction: North-East

Celestial coordinates and finder chart of HR3724

HR3724 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR3724 are provided in the following table:

Right Ascension J2000 09h 22m 50s

Declination J2000 -09° 50’ 20”

Galactic Longitude 241.74°

Galactic Latitude 27.4°

Constellation Hydra

The simplified sky map below shows the position of HR3724 in the sky:

Simplified finder chart for HR3724.

Visibility of HR3724 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 HR3724 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: 99.8° RISE 4:59

Max altitude: 28.7° TRANSIT 10:07

Azimuth: 260.2° SET 15:15

Digitized Sky Survey image of HR3724

The image below is a photograph of HR3724 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 HR3724 is -0.027 arcsec per year in Right Ascension and -0.021 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR3724. The red arrow shows the motion of HR3724 during the next 10000 years (-4.50 arcmin in Right Ascension and -3.50 arcmin in declination);

Distance of HR3724 from the Sun and relative movement

HR3724 is distant 452.78 light years from the Sun and it is moving far from the Sun at the speed of 23 kilometers per second.

Distance (parsec) 138.89 pc

Distance (light year) 452.78 ly

Heliocentric radial velocity 23 km/s

Proper Motion RA -0.027 arcsec/year

Proper Motion Dec -0.021 arcsec/year

Spectral properties of HR3724

HR3724 belongs to spectral class A5 HR3724 is also a SrCrEu chemically peculiar star.

Absolute magnitude 0.82

Spectral Type A5

Color Index (B-V) 0.22

Temperature of HR3724 8011K

The red dot in the diagram below shows where HR3724 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR3724. Attribution: Richard Powell / CC BY-SA

HR3724 star system properties

HR3724 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR3724 double sysyem:

Main star magnitude 6.53

Secondary star magnitude 6.63

Magnitude difference 0.1

Separation 0.1 arcsec

Alternative designations of HR3724

Henry Draper Catalogue HD81009

SAO Catalogue SAO136799

Hipparcos Catalogue HIP45999

Durchmusterung Catalogue BD-09 2816

General Catalogue of Variable Stars KU Hya

Aitken Double Star Catalogue ADS7334

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In Evidence

Other stars in Hydra