HR2668

Altitude: -72.1° Azimuth: 286.7° Direction: West-North-West

HR2668 is a multiple hypergiant star in the constellation of Puppis.

HR2668 visual magnitude is 6.79. Because of its reltive faintness, HR2668 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 HR2668:

Color of HR2668 ⬤

Magnitude of HR2668 6.79

Class Hypergiant

VISIBILITY RIGHT NOW

HR2668 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -72.1°
Azimuth: 286.7°
Direction: West-North-West

Celestial coordinates and finder chart of HR2668

HR2668 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 HR2668 are provided in the following table:

Right Ascension J2000 07h 03m 58s

Declination J2000 -43° 36’ 42”

Galactic Longitude 254.09°

Galactic Latitude -16.22°

Constellation Puppis

The simplified sky map below shows the position of HR2668 in the sky:

Simplified finder chart for HR2668.

Visibility of HR2668 from your location

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

HR2668 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR2668

The image below is a photograph of HR2668 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 HR2668 is -0.109 arcsec per year in Right Ascension and 0.371 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

DSS2 image of HR2668. The red arrow shows the motion of HR2668 during the next 1000 years (-1.82 arcmin in Right Ascension and 6.18 arcmin in declination);

Distance of HR2668 from the Sun and relative movement

HR2668 is distant 49.18 light years from the Sun and it is moving far from the Sun at the speed of 90 kilometers per second.

Distance (parsec) 15.09 pc

Distance (light year) 49.18 ly

Heliocentric radial velocity 90 km/s

Proper Motion RA -0.109 arcsec/year

Proper Motion Dec 0.371 arcsec/year

Spectral properties of HR2668

HR2668 belongs to spectral class K0 and has a luminosity class of V corresponding to a hypergiant star.

Absolute magnitude 5.90

Spectral Type K0V

Color Index (B-V) 0.8

Temperature of HR2668 5281K

The red dot in the diagram below shows where HR2668 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR2668. Attribution: Richard Powell / CC BY-SA

HR2668 star system properties

HR2668 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR2668 double sysyem:

Main star magnitude 6.79

Secondary star magnitude 7.99

Magnitude difference 1.2

Separation 21 arcsec

Alternative designations of HR2668

Henry Draper Catalogue HD53706

SAO Catalogue SAO218423

Hipparcos Catalogue HIP34069

Durchmusterung Catalogue CD-43 2907

Gliese Catalogue Gl 264.1B

In Evidence

Other stars in Puppis