Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:46  
clear_day Transit: 12:57  
SunsetSet: 21:08 south
wb_twilight Astronomical TwilightWhat's Visible Now
All Constellations » Crater » 

HR4440

Altitude: -17.8°   Azimuth: 258.8°   Direction: West

HR4440 is a sub-giant star in the constellation of Crater.

HR4440 visual magnitude is 6.24. Because of its reltive faintness, HR4440 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 HR4440:

6.24
Sub-giant

HR4440 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -17.8°
Azimuth: 258.8°
Direction: West

Celestial coordinates and finder chart of HR4440

HR4440 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 HR4440 are provided in the following table:

11h 31m 47s
-20° 46’ 36”
278.98°
38.36°
Crater

The simplified sky map below shows the position of HR4440 in the sky:

Finder chart HR4440 star
Simplified finder chart for HR4440.

Visibility of HR4440 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 HR4440 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: 110.8°
Max altitude: 17.7°
Azimuth: 249.2°
HR4440 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR4440

The image below is a photograph of HR4440 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 HR4440 is -0.131 arcsec per year in Right Ascension and 0.032 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR4440 star
DSS2 image of HR4440. The red arrow shows the motion of HR4440 during the next 1000 years (-2.18 arcmin in Right Ascension and 0.53 arcmin in declination);

Distance of HR4440 from the Sun and relative movement

HR4440 is distant 128.85 light years from the Sun and it is moving far from the Sun at the speed of 10 kilometers per second.

39.53 pc
128.85 ly
10 km/s
-0.131 arcsec/year
0.032 arcsec/year

Spectral properties of HR4440

HR4440 belongs to spectral class F7 and has a luminosity class of IV corresponding to a sub-giant star.

3.26
F7IV
6213K

The red dot in the diagram below shows where HR4440 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR4440. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4440

SAO179964
SAO179964