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public LocationGreenwich, United Kingdom
TimezoneEurope/London
Sunrise: 4:42 
Transit: 12:58 
Sunset: 21:15
sunny   (Daytime)   What's Visible Now?

HR7439

Below the horizon.  Rise: 22:44 | Tran: 3:04 | Set: 7:21
Altitude: -48.8°   Azimuth: 310.3°   Direction: North-West

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.

Celestial coordinates and finder chart of HR7439

Finder chart HR7439 star
Simplified finder chart for HR7439.

HR7439 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 HR7439 are provided in the following table:

19h 36m 26s
-18° 51’ 10”
20.57°
-18.16°
Sagittarius
Image of HR7439 star
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);

Key facts about HR7439

6.11
Hypergiant

and has a luminosity class of III corresponding to a hypergiant star.

1.78
F0III
7658K

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

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

Distance of HR7439 from the Sun and relative movement

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.

73.53 pc
239.71 ly
-42 km/s
0.031 arcsec/year
-0.003 arcsec/year

Alternative designations of HR7439

SAO162809
SAO162809

Visibility of HR7439 from your location

Today's HR7439 rise, transit and set times from Greenwich, United Kingdom are the following (all times relative to the local timezone Europe/London):

Azimuth: 108.9°
Max altitude: 19.7°
Azimuth: 251.1°