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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
SunriseRise: 5:51  
clear_day Transit: 12:57  
SunsetSet: 20:04
sunny DaytimeWhat's Visible Now?
All Constellations » Vela » 


Altitude: -0.1°   Azimuth: 168.1°   Direction: South-South-East

HR3399 is a variable and double giant star in the constellation of Vela.

HR3399 visual magnitude is 6.3. Because of its reltive faintness, HR3399 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR3399 is -0.007 arcsec per year in Right Ascension and 0.001 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR3399 star
DSS2 image of HR3399. The red arrow shows the motion of HR3399 during the next 100000 years (-11.67 arcmin in Right Ascension and 1.67 arcmin in declination);

Key facts about HR3399


HR3399 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -0.1°
Azimuth: 168.1°
Direction: South-South-East

Celestial coordinates and finder chart of HR3399

HR3399 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 HR3399 are provided in the following table:

08h 34m 29s
-37° 36’ 41”

The simplified sky map below shows the position of HR3399 in the sky:

Finder chart HR3399 star
Simplified finder chart for HR3399.

Visibility of HR3399 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 HR3399 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: 127.6°
Max altitude: 0.9°
Azimuth: 232.4°

Distance of HR3399 from the Sun and relative movement

HR3399 is distant 987.88 light years from the Sun and it is moving far from the Sun at the speed of 23 kilometers per second.

303.03 pc
987.88 ly
23 km/s
-0.007 arcsec/year
0.001 arcsec/year

Spectral properties of HR3399

HR3399 belongs to spectral class K5 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR3399 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3399. Attribution: Richard Powell / CC BY-SA

HR3399 star system properties

HR3399 is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the HR3399 double sysyem:

1.9 arcsec

Alternative designations of HR3399