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public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 5:12 
Transit: 13:06 
Sunset: 20:59
wb_twilight   (Civil Twilight)   What's Visible Now?
All Constellations » Antlia » 

HR3878

Below the horizon.  Rise: 11:49 | Tran: 14:39 | Set: 17:29
Alt: -31.22°   Az: 259.26°   Direction: West

HR3878 is a hypergiant star of spectral class B0 in the constellation of Antlia.

HR3878 visual magnitude is 6.45. Because of its faintness, HR3878 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.

Image of HR3878 star
DSS2 image of HR3878. The red arrow shows the motion of HR3878 during the next 10000 years (-5.33 arcmin in Right Ascension and 0.17 arcmin in declination);

Celestial Coordinates

Apparent

09h 46m 26s
-30° 19’ 00”
06h 53m 04s
16h 39m 31s

J2000

09h 45m 21s
-30° 12’ 10”

Galactic Coordinates

261.83°
17.45°

Finder Chart

Finder chart HR3878 star
Simplified finder chart for HR3878.

Magnitude, Color, Spectral Class

6.45
Hypergiant

-5.59
B0III
12103K

The red dot in the diagram below shows where HR3878 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3878. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR3878 is distant 8,358.97 light years from the Sun and it is moving far from the Sun at the speed of 33 kilometers per second.

2,564.10
8,358.97
33 km/s
-0.032 arcsec/y
0.001"/y

Alternative Designations

SAO177939
SAO177939

Visibility from Your Location

Today's HR3878 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 120.3°
Max altitude: 8.2°
Azimuth: 239.7°