Your guide to the Solar System and the night sky
🌎 Location: Greenwich, United Kingdom [change]

HR4240

HR4240 is a star in the constellation of Sextans.

HR4240 visual magnitude is 5.95. Because of its reltive faintness, HR4240 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 HR4240:

5.95
HR4240 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 34°.

Celestial coordinates and finder chart of HR4240

HR4240 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 HR4240 are provided in the following table:

10h 51m 05s
-03° 05’ 32”
254.38°
48.1°
Sextans

The simplified sky map below shows the position of HR4240 in the sky:

Finder chart HR4240 star
Simplified finder chart for HR4240.

Visibility of HR4240 from your location

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

Today's HR4240 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 93.1°
Max altitude: 35.4°
Azimuth: 266.9°
HR4240 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR4240

The image below is a photograph of HR4240 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 HR4240 is -0.046 arcsec per year in Right Ascension and -0.006 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4240 star
DSS2 image of HR4240. The red arrow shows the motion of HR4240 during the next 10000 years (-7.67 arcmin in Right Ascension and -1.00 arcmin in declination);

Distance of HR4240 from the Sun and relative movement

HR4240 is distant 514.20 light years from the Sun and it is moving far from the Sun at the speed of 37 kilometers per second.

157.73 pc
514.20 ly
37 km/s
-0.046 arcsec/year
-0.006 arcsec/year

Spectral properties of HR4240

HR4240 belongs to spectral class K2

-0.04
K2
3824K

The red dot in the diagram below shows where HR4240 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4240. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4240

SAO137834
SAO137834