HR4222

Altitude: -33.7° Azimuth: 154.5° Direction: South-South-East

HR4222 is a sub-giant star in the constellation of Carina.

HR4222 visual magnitude is 4.85. Because of its moderate brightness, HR4222 should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about HR4222:

Color of HR4222 ⬤

Magnitude of HR4222 4.85

Class Sub-giant

VISIBILITY RIGHT NOW

HR4222 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -33.7°
Azimuth: 154.5°
Direction: South-South-East

Celestial coordinates and finder chart of HR4222

HR4222 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 HR4222 are provided in the following table:

Right Ascension J2000 10h 46m 51s

Declination J2000 -64° 22’ 59”

Galactic Longitude 289.97°

Galactic Latitude -4.69°

Constellation Carina

The simplified sky map below shows the position of HR4222 in the sky:

Simplified finder chart for HR4222.

Visibility of HR4222 from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

HR4222 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR4222

The image below is a photograph of HR4222 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 HR4222 is -0.023 arcsec per year in Right Ascension and 0.012 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR4222. The red arrow shows the motion of HR4222 during the next 10000 years (-3.83 arcmin in Right Ascension and 2.00 arcmin in declination);

Distance of HR4222 from the Sun and relative movement

HR4222 is distant 449.04 light years from the Sun and it is moving far from the Sun at the speed of 16 kilometers per second.

Distance (parsec) 137.74 pc

Distance (light year) 449.04 ly

Heliocentric radial velocity 16 km/s

Proper Motion RA -0.023 arcsec/year

Proper Motion Dec 0.012 arcsec/year

Spectral properties of HR4222

HR4222 belongs to spectral class B3 and has a luminosity class of IV corresponding to a sub-giant star.

Absolute magnitude -0.85

Spectral Type B3IV

Color Index (B-V) -0.15

Temperature of HR4222 12489K

The red dot in the diagram below shows where HR4222 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4222. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4222

Henry Draper Catalogue HD93607

SAO Catalogue SAO251120

Hipparcos Catalogue HIP52736

Durchmusterung Catalogue CP-63 1655

In Evidence

Other stars in Carina