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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: 7:03  
clear_day Transit: 12:12  
SunsetSet: 17:22
sleep NighttimeWhat's Visible Now?
All Constellations » Vela » 


Altitude: -17.1°   Azimuth: 162.5°   Direction: South-South-East

HR3447 is a variable sub-giant star in the constellation of Vela.

HR3447 visual magnitude is 3.62. Because of its moderate brightness, HR3447 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 proper motion of HR3447 is -0.022 arcsec per year in Right Ascension and 0.019 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3447 star
DSS2 image of HR3447. The red arrow shows the motion of HR3447 during the next 10000 years (-3.67 arcmin in Right Ascension and 3.17 arcmin in declination);

Key facts about HR3447


HR3447 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -17.1°
Azimuth: 162.5°
Direction: South-South-East

Celestial coordinates and finder chart of HR3447

HR3447 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 HR3447 are provided in the following table:

08h 40m 17s
-52° 55’ 18”

The simplified sky map below shows the position of HR3447 in the sky:

Finder chart HR3447 star
Simplified finder chart for HR3447.

Visibility of HR3447 from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

HR3447 is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of HR3447 from the Sun and relative movement

HR3447 is distant 494.69 light years from the Sun and it is moving far from the Sun at the speed of 16 kilometers per second.

151.75 pc
494.69 ly
16 km/s
-0.022 arcsec/year
0.019 arcsec/year

Spectral properties of HR3447

HR3447 belongs to spectral class B3 and has a luminosity class of IV corresponding to a sub-giant star.


The red dot in the diagram below shows where HR3447 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3447. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3447