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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: -82.4°   Azimuth: 250.9°   Direction: West-South-West

HR3955 is a variable main-sequence star in the constellation of Vela.

HR3955 visual magnitude is 6.2. Because of its reltive faintness, HR3955 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 HR3955 is -0.036 arcsec per year in Right Ascension and -0.017 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3955 star
DSS2 image of HR3955. The red arrow shows the motion of HR3955 during the next 10000 years (-6.00 arcmin in Right Ascension and -2.83 arcmin in declination);

Key facts about HR3955


HR3955 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -82.4°
Azimuth: 250.9°
Direction: West-South-West

Celestial coordinates and finder chart of HR3955

HR3955 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 HR3955 are provided in the following table:

10h 01m 40s
-53° 21’ 51”

The simplified sky map below shows the position of HR3955 in the sky:

Finder chart HR3955 star
Simplified finder chart for HR3955.

Visibility of HR3955 from your location

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

HR3955 is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of HR3955 from the Sun and relative movement

HR3955 is distant 1,442.48 light years from the Sun and it is moving far from the Sun at the speed of 6 kilometers per second.

442.48 pc
1,442.48 ly
6 km/s
-0.036 arcsec/year
-0.017 arcsec/year

Spectral properties of HR3955

HR3955 belongs to spectral class B2 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR3955 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3955. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3955