HR4612

Altitude: -1.1° Azimuth: 204.2° Direction: South-South-West

HR4612 is a variable and double main-sequence star in the constellation of Centaurus.

HR4612 visual magnitude is 6.23. Because of its reltive faintness, HR4612 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 HR4612:

Color of HR4612 ⬤

Magnitude of HR4612 6.23

Class Main-sequence

VISIBILITY RIGHT NOW

HR4612 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -1.1°
Azimuth: 204.2°
Direction: South-South-West

Celestial coordinates and finder chart of HR4612

HR4612 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 HR4612 are provided in the following table:

Right Ascension J2000 12h 05m 56s

Declination J2000 -35° 41’ 38”

Galactic Longitude 292.64°

Galactic Latitude 26.27°

Constellation Centaurus

The simplified sky map below shows the position of HR4612 in the sky:

Simplified finder chart for HR4612.

Visibility of HR4612 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 HR4612 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: 125.7° RISE 18:28

Max altitude: 2.8° TRANSIT 20:10

Azimuth: 234.3° SET 21:51

RIGHT NOW HR4612 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR4612

The image below is a photograph of HR4612 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 HR4612 is -0.031 arcsec per year in Right Ascension and -0.002 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR4612. The red arrow shows the motion of HR4612 during the next 10000 years (-5.17 arcmin in Right Ascension and -0.33 arcmin in declination);

Distance of HR4612 from the Sun and relative movement

HR4612 is distant 727.68 light years from the Sun and it is moving towards the Sun at the speed of 18 kilometers per second.

Distance (parsec) 223.21 pc

Distance (light year) 727.68 ly

Heliocentric radial velocity -18 km/s

Proper Motion RA -0.031 arcsec/year

Proper Motion Dec -0.002 arcsec/year

Spectral properties of HR4612

HR4612 belongs to spectral class B8 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude -0.51

Spectral Type B8V

Color Index (B-V) -0.08

Temperature of HR4612 11247K

The red dot in the diagram below shows where HR4612 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4612. Attribution: Richard Powell / CC BY-SA

HR4612 star system properties

HR4612 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 HR4612 double sysyem:

Main star magnitude 6.23

Secondary star magnitude 13.93

Magnitude difference 7.7

Separation 25.4 arcsec

Alternative designations of HR4612

Henry Draper Catalogue HD105078

SAO Catalogue SAO203119

Hipparcos Catalogue HIP59008

Durchmusterung Catalogue CD-35 7694

FK5 Catalogue 1312

General Catalogue of Variable Stars 5456

In Evidence

Other stars in Centaurus