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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: 5:43  
clear_day Transit: 12:56  
SunsetSet: 20:10
sunny DaytimeWhat's Visible Now?
All Constellations » Vela » 


Altitude: -73.2°   Azimuth: 69.0°   Direction: East-North-East

HR3842 is a bright giant star in the constellation of Vela.

HR3842 visual magnitude is 5.5. Because of its reltive faintness, HR3842 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 HR3842 is 0.032 arcsec per year in Right Ascension and -0.037 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3842 star
DSS2 image of HR3842. The red arrow shows the motion of HR3842 during the next 10000 years (5.33 arcmin in Right Ascension and -6.17 arcmin in declination);

Key facts about HR3842

Bright giant

HR3842 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -73.2°
Azimuth: 69.0°
Direction: East-North-East

Celestial coordinates and finder chart of HR3842

HR3842 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 HR3842 are provided in the following table:

09h 38m 01s
-43° 11’ 27”

The simplified sky map below shows the position of HR3842 in the sky:

Finder chart HR3842 star
Simplified finder chart for HR3842.

Visibility of HR3842 from your location

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

HR3842 is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of HR3842 from the Sun and relative movement

HR3842 is distant 484.40 light years from the Sun and it is moving far from the Sun at the speed of 2 kilometers per second.

148.59 pc
484.40 ly
2 km/s
0.032 arcsec/year
-0.037 arcsec/year

Spectral properties of HR3842

HR3842 belongs to spectral class G8 and has a luminosity class of II corresponding to a bright giant star.


The red dot in the diagram below shows where HR3842 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3842. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3842