HR7240

HR7240 is a giant star in the constellation of Sagittarius.

HR7240 visual magnitude is 6.04. Because of its reltive faintness, HR7240 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 HR7240:

Color of HR7240 ⬤

Magnitude of HR7240 6.04

Class Giant

VISIBILITY RIGHT NOW HR7240 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR7240

HR7240 is situated south of the celestial equator, as such, it is more easily visible from the southern emisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR7240 are provided in the following table:

Right Ascension J2000 19h 07m 30s

Declination J2000 -28° 38’ 12”

Galactic Longitude 8.46°

Galactic Latitude -15.86°

Constellation Sagittarius

The simplified sky map below shows the position of HR7240 in the sky:

Simplified finder chart for HR7240.

Visibility of HR7240 from your location

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

Today's HR7240 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 118.6° RISE 4:28

Max altitude: 9.9° TRANSIT 7:33

Azimuth: 241.4° SET 10:39

RIGHT NOW HR7240 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR7240

The image below is a photograph of HR7240 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 HR7240 is 0.008 arcsec per year in Right Ascension and -0.01 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR7240. The red arrow shows the motion of HR7240 during the next 10000 years (1.33 arcmin in Right Ascension and -1.67 arcmin in declination);

Distance of HR7240 from the Sun and relative movement

HR7240 is distant 915.73 light years from the Sun and it is moving far from the Sun at the speed of 5 kilometers per second.

Distance (parsec) 280.90 pc

Distance (light year) 915.73 ly

Heliocentric radial velocity 5 km/s

Proper Motion RA 0.008 arcsec/year

Proper Motion Dec -0.01 arcsec/year

Spectral properties of HR7240

HR7240 belongs to spectral class K3 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude -1.20

Spectral Type K3III

Color Index (B-V) 1.61

Temperature of HR7240 3635K

The red dot in the diagram below shows where HR7240 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7240. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7240

Henry Draper Catalogue HD177846

SAO Catalogue SAO187701

Hipparcos Catalogue HIP93925

Durchmusterung Catalogue CD-2815403

How to support us

In Evidence

Other stars in Sagittarius