HR2789

HR2789 is a bright giant star in the constellation of Puppis.

HR2789 visual magnitude is 5.85. Because of its reltive faintness, HR2789 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 HR2789:

Color of HR2789 ⬤

Magnitude of HR2789 5.85

Class Bright giant

VISIBILITY RIGHT NOW HR2789 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR2789

HR2789 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 HR2789 are provided in the following table:

Right Ascension J2000 07h 18m 04s

Declination J2000 -43° 59’ 12”

Galactic Longitude 255.49°

Galactic Latitude -14.03°

Constellation Puppis

The simplified sky map below shows the position of HR2789 in the sky:

Simplified finder chart for HR2789.

Visibility of HR2789 from your location

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

HR2789 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR2789

The image below is a photograph of HR2789 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 HR2789 is -0.015 arcsec per year in Right Ascension and 0.001 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR2789. The red arrow shows the motion of HR2789 during the next 10000 years (-2.50 arcmin in Right Ascension and 0.17 arcmin in declination);

Distance of HR2789 from the Sun and relative movement

HR2789 is distant 620.95 light years from the Sun and it is moving far from the Sun at the speed of 13 kilometers per second.

Distance (parsec) 190.48 pc

Distance (light year) 620.95 ly

Heliocentric radial velocity 13 km/s

Proper Motion RA -0.015 arcsec/year

Proper Motion Dec 0.001 arcsec/year

Spectral properties of HR2789

HR2789 belongs to spectral class B8 and has a luminosity class of II corresponding to a bright giant star.

Absolute magnitude -0.55

Spectral Type B8II

Color Index (B-V) -0.12

Temperature of HR2789 11920K

The red dot in the diagram below shows where HR2789 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR2789. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR2789

Henry Draper Catalogue HD57197

SAO Catalogue SAO218618

Hipparcos Catalogue HIP35347

Durchmusterung Catalogue CD-43 3093

In Evidence

Other stars in Puppis