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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: -72.1°   Azimuth: 103.5°   Direction: East-South-East

HR3542 is a double hypergiant star in the constellation of Vela.

HR3542 visual magnitude is 6.39. Because of its reltive faintness, HR3542 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 HR3542 is -0.019 arcsec per year in Right Ascension and 0.005 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3542 star
DSS2 image of HR3542. The red arrow shows the motion of HR3542 during the next 10000 years (-3.17 arcmin in Right Ascension and 0.83 arcmin in declination);

Key facts about HR3542


HR3542 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -72.1°
Azimuth: 103.5°
Direction: East-South-East

Celestial coordinates and finder chart of HR3542

HR3542 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 HR3542 are provided in the following table:

08h 52m 40s
-52° 07’ 45”

The simplified sky map below shows the position of HR3542 in the sky:

Finder chart HR3542 star
Simplified finder chart for HR3542.

Visibility of HR3542 from your location

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

HR3542 is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of HR3542 from the Sun and relative movement

HR3542 is distant 453.41 light years from the Sun and it is moving far from the Sun at the speed of 18 kilometers per second.

139.08 pc
453.41 ly
18 km/s
-0.019 arcsec/year
0.005 arcsec/year

Spectral properties of HR3542

HR3542 belongs to spectral class A0 and has a luminosity class of V corresponding to a hypergiant star.


The red dot in the diagram below shows where HR3542 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3542. Attribution: Richard Powell / CC BY-SA

HR3542 star system properties

HR3542 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 HR3542 double sysyem:

2.8 arcsec

Alternative designations of HR3542