Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:52  
clear_day Transit: 12:55  
SunsetSet: 20:59 south
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All Constellations » Puppis » 

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:

5.85
Bright giant
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:

07h 18m 04s
-43° 59’ 12”
255.49°
-14.03°
Puppis

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

Finder chart HR2789 star
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.

Image of HR2789 star
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.

190.48 pc
620.95 ly
13 km/s
-0.015 arcsec/year
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.

-0.55
B8II
11920K

The red dot in the diagram below shows where HR2789 is situated in the Hertzsprungā€“Russell diagram.

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

Alternative designations of HR2789

SAO218618
SAO218618