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public LocationGreenwich, United Kingdom
TimezoneEurope/London
Sunrise: 4:42 
Transit: 12:59 
Sunset: 21:17
wb_twilight   (Civil Twilight)   What's Visible Now?

HR4019

Below the horizon.  Never rises today
Altitude: -76.2°   Azimuth: 319.4°   Direction: North-West

HR4019 is a double giant star of spectral class G8 in the constellation of Antlia.

HR4019 visual magnitude is 6.35. Because of its faintness, HR4019 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 HR4019

Finder chart HR4019 star
Simplified finder chart for HR4019.

HR4019 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4019 are provided in the following table:

10h 13m 56s
-40° 18’ 38”
273.13°
13.28°
Antlia
Image of HR4019 star
DSS2 image of HR4019. The red arrow shows the motion of HR4019 during the next 10000 years (-4.33 arcmin in Right Ascension and -0.33 arcmin in declination);

Key facts about HR4019

6.35
Giant

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

0.66
G8III
4892K

The red dot in the diagram below shows where HR4019 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR4019. Attribution: Richard Powell / CC BY-SA

HR4019 star system properties

HR4019 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR4019 double sysyem:

6.35
13.35
7
12.7 arcsec

Distance of HR4019 from the Sun and relative movement

HR4019 is distant 448.42 light years from the Sun

137.55 pc
448.42 ly
-0.026 arcsec/year
-0.002 arcsec/year

Alternative designations of HR4019

SAO221883
SAO221883

Visibility of HR4019 from your location

HR4019 is currently not visible from Greenwich, United Kingdom