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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:40  
clear_day Transit: 11:47  
SunsetSet: 15:53 south
wb_twilight Astronomical TwilightWhat's Visible Now?
All Constellations » Puppis » 

20 Puppis

Altitude: 17.3°   Azimuth: 211.8°   Direction: South-South-West

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

20 Puppis visual magnitude is 4.99. Because of its moderate brightness, 20 Puppis 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 20 Puppis:

Bright giant

20 Puppis is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 17.3°
Azimuth: 211.8°
Direction: South-South-West

Celestial coordinates and finder chart of 20 Puppis

20 Puppis is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 20 Puppis are provided in the following table:

08h 13m 19s
-15° 47’ 17”

The simplified sky map below shows the position of 20 Puppis in the sky:

Finder chart 20 Puppis star
Simplified finder chart for 20 Puppis.

Visibility of 20 Puppis 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 20 Puppis 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: 105.8°
Max altitude: 22.7°
Azimuth: 254.2°

Digitized Sky Survey image of 20 Puppis

The image below is a photograph of 20 Puppis 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 20 Puppis is -0.013 arcsec per year in Right Ascension and -0.004 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 20 Puppis star
DSS2 image of 20 Puppis. The red arrow shows the motion of 20 Puppis during the next 10000 years (-2.17 arcmin in Right Ascension and -0.67 arcmin in declination);

Distance of 20 Puppis from the Sun and relative movement

20 Puppis is distant 1,230.19 light years from the Sun and it is moving far from the Sun at the speed of 17 kilometers per second.

377.36 pc
1,230.19 ly
17 km/s
-0.013 arcsec/year
-0.004 arcsec/year

Spectral properties of 20 Puppis

20 Puppis belongs to spectral class G5 and has a luminosity class of II corresponding to a bright giant star.


The red dot in the diagram below shows where 20 Puppis is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of 20 Puppis. Attribution: Richard Powell / CC BY-SA

Alternative designations of 20 Puppis