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: 4:46  
clear_day Transit: 12:57  
SunsetSet: 21:08 south
wb_twilight Astronomical TwilightWhat's Visible Now
All Constellations » Puppis » 


Altitude: -65.7°   Azimuth: 296.7°   Direction: West-North-West

HR2790 is a variable sub-giant star in the constellation of Puppis.

HR2790 visual magnitude is 5.11. Because of its reltive faintness, HR2790 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 HR2790:


HR2790 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -65.7°
Azimuth: 296.7°
Direction: West-North-West

Celestial coordinates and finder chart of HR2790

HR2790 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 HR2790 are provided in the following table:

07h 18m 38s
-36° 44’ 34”

The simplified sky map below shows the position of HR2790 in the sky:

Finder chart HR2790 star
Simplified finder chart for HR2790.

Visibility of HR2790 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 HR2790 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: 126.7°
Max altitude: 1.8°
Azimuth: 233.3°
HR2790 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR2790

The image below is a photograph of HR2790 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 HR2790 is -0.002 arcsec per year in Right Ascension and 0.003 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR2790 star
DSS2 image of HR2790. The red arrow shows the motion of HR2790 during the next 100000 years (-3.33 arcmin in Right Ascension and 5.00 arcmin in declination);

Distance of HR2790 from the Sun and relative movement

HR2790 is distant 835.90 light years from the Sun and it is moving far from the Sun at the speed of 18 kilometers per second.

256.41 pc
835.90 ly
18 km/s
-0.002 arcsec/year
0.003 arcsec/year

Spectral properties of HR2790

HR2790 belongs to spectral class B2 and has a luminosity class of IV corresponding to a sub-giant star.


The red dot in the diagram below shows where HR2790 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR2790. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR2790