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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:43  
clear_day Transit: 11:47  
SunsetSet: 15:52 south
sunny DaytimeWhat's Visible Now?
All Constellations » Taurus » 


Altitude: -8.0°   Azimuth: 21.5°   Direction: North-North-East

HR1878 is a hypergiant star in the constellation of Taurus.

HR1878 visual magnitude is 6.27. Because of its reltive faintness, HR1878 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 HR1878:


HR1878 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -8.0°
Azimuth: 21.5°
Direction: North-North-East

Celestial coordinates and finder chart of HR1878

HR1878 is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR1878 are provided in the following table:

05h 35m 55s
+27° 39’ 43”

The simplified sky map below shows the position of HR1878 in the sky:

Finder chart HR1878 star
Simplified finder chart for HR1878.

Visibility of HR1878 from your location

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

Today's HR1878 rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 62.3°
Max altitude: 66.2°
Azimuth: 297.7°

Digitized Sky Survey image of HR1878

The image below is a photograph of HR1878 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 HR1878 is -0.025 arcsec per year in Right Ascension and -0.039 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR1878 star
DSS2 image of HR1878. The red arrow shows the motion of HR1878 during the next 10000 years (-4.17 arcmin in Right Ascension and -6.50 arcmin in declination);

Distance of HR1878 from the Sun and relative movement

HR1878 is distant 799.02 light years from the Sun and it is moving towards the Sun at the speed of 9 kilometers per second.

245.10 pc
799.02 ly
-9 km/s
-0.025 arcsec/year
-0.039 arcsec/year

Spectral properties of HR1878

HR1878 belongs to spectral class K0


The red dot in the diagram below shows where HR1878 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR1878. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR1878