We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
A Complete Guide to the Solar System and the Night Sky
Your support keeps us free & ad-free » Donate
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:59  
clear_day Transit: 12:12  
SunsetSet: 17:25
sleep NighttimeWhat's Visible Now?
All Constellations » Columba » 


Altitude: -59.2°   Azimuth: 273.6°   Direction: West

HR1947 is a main-sequence star in the constellation of Columba.

HR1947 visual magnitude is 5.82. Because of its reltive faintness, HR1947 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The proper motion of HR1947 is -0.005 arcsec per year in Right Ascension and 0.009 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR1947 star
DSS2 image of HR1947. The red arrow shows the motion of HR1947 during the next 100000 years (-8.33 arcmin in Right Ascension and 15.00 arcmin in declination);

Key facts about HR1947


HR1947 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -59.2°
Azimuth: 273.6°
Direction: West

Celestial coordinates and finder chart of HR1947

HR1947 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 HR1947 are provided in the following table:

05h 38m 43s
-40° 42’ 27”

The simplified sky map below shows the position of HR1947 in the sky:

Finder chart HR1947 star
Simplified finder chart for HR1947.

Visibility of HR1947 from your location

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

HR1947 is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of HR1947 from the Sun and relative movement

HR1947 is distant 490.23 light years from the Sun and it is moving far from the Sun at the speed of 4 kilometers per second.

150.38 pc
490.23 ly
4 km/s
-0.005 arcsec/year
0.009 arcsec/year

Spectral properties of HR1947

HR1947 belongs to spectral class B8 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR1947 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR1947. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR1947