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
wb_twilight Civil TwilightWhat's Visible Now
All Constellations » Puppis » 


HR3240 is a variable and double sub-giant star in the constellation of Puppis.

HR3240 visual magnitude is 5.08. Because of its reltive faintness, HR3240 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 HR3240:

HR3240 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR3240

HR3240 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 HR3240 are provided in the following table:

08h 13m 58s
-36° 19’ 20”

The simplified sky map below shows the position of HR3240 in the sky:

Finder chart HR3240 star
Simplified finder chart for HR3240.

Visibility of HR3240 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 HR3240 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: 126.3°
Max altitude: 2.2°
Azimuth: 233.7°
HR3240 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR3240

The image below is a photograph of HR3240 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 HR3240 is 0.01 arcsec per year in Right Ascension and -0.002 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3240 star
DSS2 image of HR3240. The red arrow shows the motion of HR3240 during the next 10000 years (1.67 arcmin in Right Ascension and -0.33 arcmin in declination);

Distance of HR3240 from the Sun and relative movement

HR3240 is distant 1,176.90 light years from the Sun and it is moving far from the Sun at the speed of 18 kilometers per second.

361.01 pc
1,176.90 ly
18 km/s
0.01 arcsec/year
-0.002 arcsec/year

Spectral properties of HR3240

HR3240 belongs to spectral class B1 and has a luminosity class of IV corresponding to a sub-giant star.


The red dot in the diagram below shows where HR3240 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3240. Attribution: Richard Powell / CC BY-SA

HR3240 star system properties

HR3240 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR3240 double sysyem:

66.9 arcsec

Alternative designations of HR3240