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public LocationGreenwich, United Kingdom
Sunrise: 4:42 
Transit: 12:59 
Sunset: 21:16
sunny   (Daytime)   What's Visible Now?


Below the horizon.  Never rises today
Altitude: -32.5°   Azimuth: 186.0°   Direction: South

HR3642 is a variable sub-giant star of spectral class B2 in the constellation of Carina.

HR3642 visual magnitude is 4.71. Because of its moderate brightness, HR3642 is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

Celestial coordinates and finder chart of HR3642

Finder chart HR3642 star
Simplified finder chart for HR3642.

HR3642 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 HR3642 are provided in the following table:

09h 05m 38s
-70° 32’ 20”
Image of HR3642 star
DSS2 image of HR3642. The red arrow shows the motion of HR3642 during the next 100000 years (-13.33 arcmin in Right Ascension and -8.33 arcmin in declination);

Key facts about HR3642


and has a luminosity class of IV corresponding to a sub-giant star.


The red dot in the diagram below shows where HR3642 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR3642. Attribution: Richard Powell / CC BY-SA

Distance of HR3642 from the Sun and relative movement

HR3642 is distant 1,079.47 light years from the Sun and it is moving far from the Sun at the speed of 19 kilometers per second.

331.13 pc
1,079.47 ly
19 km/s
-0.008 arcsec/year
-0.005 arcsec/year

Alternative designations of HR3642


Visibility of HR3642 from your location

HR3642 is currently not visible from Greenwich, United Kingdom