HR7439

Above the horizon. Rise: 21:48 | Tran: 2:14 | Set: 6:37

Alt: 20.94° Az: 183.04° Direction: South

HR7439 is a hypergiant star of spectral class F0 in the constellation of Sagittarius.

HR7439 visual magnitude is 6.11. Because of its faintness, HR7439 is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

DSS2 image of HR7439. The red arrow shows the motion of HR7439 during the next 10000 years (5.17 arcmin in Right Ascension and -0.50 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 19h 37m 55s

Declination -18° 47’ 39”

Hour Angle 00h 11m 59s

Sidereal Time 19h 49m 54s

J2000

Right Ascension 19h 36m 26s

Declination -18° 51’ 10”

Galactic Coordinates

Galactic Longitude 20.57°

Galactic Latitude -18.16°

Finder Chart

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Finder chart for HR7439.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.11

Class Hypergiant

Absolute magnitude 1.78

Spectral Type F0III

Color Index (B-V) 0.27

Temperature 7658K

The red dot in the diagram below shows where HR7439 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7439. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR7439 is distant 239.71 light years from the Sun and it is moving towards the Sun at the speed of 42 kilometers per second.

Distance (parsec) 73.53

Distance (light year) 239.71

Radial Speed -42 km/s

Proper Motion RA 0.031 arcsec/y

Proper Motion Dec -0.003"/y

Alternative Designations

Henry Draper Catalogue HD184705

SAO Catalogue SAO162809

Hipparcos Catalogue HIP96440

Durchmusterung Catalogue BD-19 5521

Visibility from Your Location

Today's HR7439 rise, transit and set times from Fleringen, Germany are the following (all times relative to the local timezone Europe/Berlin):

Azimuth: 108.8° RISE 21:48

Max altitude: 21.0° TRANSIT 2:14

Azimuth: 251.2° SET 6:37

Name:	Fleringen, Germany
Latitude:	50° 13' 0.1" N
Longitude:	6° 30' 0.0" E
Timezone:	Europe/Berlin

Set Location

Other stars in Sagittarius