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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: -7.3°   Azimuth: 169.1°   Direction: South

HR3654 is a variable supergiant star in the constellation of Vela.

HR3654 visual magnitude is 5. Because of its moderate brightness, HR3654 should be easily visible from locations with dark skies, while it can be barely visible, or not visible at all, from skies affected by light pollution.

The proper motion of HR3654 is -0.001 arcsec per year in Right Ascension and 0.002 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR3654 star
DSS2 image of HR3654. The red arrow shows the motion of HR3654 during the next 100000 years (-1.67 arcmin in Right Ascension and 3.33 arcmin in declination);

Key facts about HR3654


HR3654 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -7.3°
Azimuth: 169.1°
Direction: South

Celestial coordinates and finder chart of HR3654

HR3654 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 HR3654 are provided in the following table:

09h 11m 04s
-44° 52’ 05”

The simplified sky map below shows the position of HR3654 in the sky:

Finder chart HR3654 star
Simplified finder chart for HR3654.

Visibility of HR3654 from your location

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

HR3654 is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of HR3654 from the Sun and relative movement

HR3654 is distant 32,600,000.00 light years from the Sun and it is moving far from the Sun at the speed of 34 kilometers per second.

10,000,000.00 pc
32,600,000.00 ly
34 km/s
-0.001 arcsec/year
0.002 arcsec/year

Spectral properties of HR3654

HR3654 belongs to spectral class B5 and has a luminosity class of I corresponding to a supergiant star.


The red dot in the diagram below shows where HR3654 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3654. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3654