HR3472

HR3472 is a double sub-giant star in the constellation of Hydra.

HR3472 visual magnitude is 6.41. Because of its reltive faintness, HR3472 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 HR3472:

Color of HR3472 ⬤

Magnitude of HR3472 6.41

Class Sub-giant

VISIBILITY RIGHT NOW HR3472 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR3472

HR3472 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 HR3472 are provided in the following table:

Right Ascension J2000 08h 45m 20s

Declination J2000 -02° 36’ 02”

Galactic Longitude 229.28°

Galactic Latitude 23.78°

Constellation Hydra

The simplified sky map below shows the position of HR3472 in the sky:

Simplified finder chart for HR3472.

Visibility of HR3472 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 HR3472 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: 92.6° RISE 11:32

Max altitude: 35.9° TRANSIT 17:17

Azimuth: 267.4° SET 23:02

RIGHT NOW HR3472 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR3472

The image below is a photograph of HR3472 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 HR3472 is 0.005 arcsec per year in Right Ascension and -0.006 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of HR3472. The red arrow shows the motion of HR3472 during the next 100000 years (8.33 arcmin in Right Ascension and -10.00 arcmin in declination);

Distance of HR3472 from the Sun and relative movement

HR3472 is distant 283.48 light years from the Sun and it is moving towards the Sun at the speed of 18 kilometers per second.

Distance (parsec) 86.96 pc

Distance (light year) 283.48 ly

Heliocentric radial velocity -18 km/s

Proper Motion RA 0.005 arcsec/year

Proper Motion Dec -0.006 arcsec/year

Spectral properties of HR3472

HR3472 belongs to spectral class F2 and has a luminosity class of IV corresponding to a sub-giant star.

Absolute magnitude 1.71

Spectral Type F2IV

Color Index (B-V) 0.52

Temperature of HR3472 6300K

The red dot in the diagram below shows where HR3472 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR3472. Attribution: Richard Powell / CC BY-SA

HR3472 star system properties

HR3472 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 HR3472 double sysyem:

Main star magnitude 6.41

Secondary star magnitude 7.11

Magnitude difference 0.7

Separation 4.7 arcsec

Alternative designations of HR3472

Henry Draper Catalogue HD74688

SAO Catalogue SAO136243

Hipparcos Catalogue HIP42951

Durchmusterung Catalogue BD-02 2676

Aitken Double Star Catalogue ADS6977

In Evidence

Other stars in Hydra