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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
north SunriseRise: 7:38  
clear_day Transit: 11:46  
SunsetSet: 15:54 south
wb_twilight Astronomical TwilightWhat's Visible Now?
All Constellations » Monoceros » 


Altitude: 18.9°   Azimuth: 239.7°   Direction: West-South-West

HR2440 is a star in the constellation of Monoceros.

HR2440 visual magnitude is 6.14. Because of its reltive faintness, HR2440 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about HR2440:


HR2440 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 18.9°
Azimuth: 239.7°
Direction: West-South-West

Celestial coordinates and finder chart of HR2440

HR2440 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR2440 are provided in the following table:

06h 38m 20s
-02° 32’ 36”

The simplified sky map below shows the position of HR2440 in the sky:

Finder chart HR2440 star
Simplified finder chart for HR2440.

Visibility of HR2440 from your location

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

Today's HR2440 rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 92.5°
Max altitude: 36.0°
Azimuth: 267.5°

Digitized Sky Survey image of HR2440

The image below is a photograph of HR2440 from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of HR2440 is -0.018 arcsec per year in Right Ascension and 0.015 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR2440 star
DSS2 image of HR2440. The red arrow shows the motion of HR2440 during the next 10000 years (-3.00 arcmin in Right Ascension and 2.50 arcmin in declination);

Distance of HR2440 from the Sun and relative movement

HR2440 is distant 737.56 light years from the Sun and it is moving far from the Sun at the speed of 27 kilometers per second.

226.24 pc
737.56 ly
27 km/s
-0.018 arcsec/year
0.015 arcsec/year

Spectral properties of HR2440

HR2440 belongs to spectral class K2


The red dot in the diagram below shows where HR2440 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR2440. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR2440