Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:44  
clear_day Transit: 12:57  
SunsetSet: 21:11 south
sunny DaytimeWhat's Visible Now
All Constellations » Taurus » 


Altitude: -2.1°   Azimuth: 53.8°   Direction: North-East

HR1755 is a hypergiant star in the constellation of Taurus.

HR1755 visual magnitude is 6.18. Because of its reltive faintness, HR1755 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 HR1755:


HR1755 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -2.1°
Azimuth: 53.8°
Direction: North-East

Celestial coordinates and finder chart of HR1755

HR1755 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 HR1755 are provided in the following table:

05h 20m 56s
+19° 48’ 51”

The simplified sky map below shows the position of HR1755 in the sky:

Finder chart HR1755 star
Simplified finder chart for HR1755.

Visibility of HR1755 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 HR1755 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: 70.2°
Max altitude: 58.3°
Azimuth: 289.8°
HR1755 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR1755

The image below is a photograph of HR1755 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 HR1755 is -0.006 arcsec per year in Right Ascension and -0.015 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR1755 star
DSS2 image of HR1755. The red arrow shows the motion of HR1755 during the next 10000 years (-1.00 arcmin in Right Ascension and -2.50 arcmin in declination);

Distance of HR1755 from the Sun and relative movement

HR1755 is distant 624.52 light years from the Sun

191.57 pc
624.52 ly
-0.006 arcsec/year
-0.015 arcsec/year

Spectral properties of HR1755

HR1755 belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.


The red dot in the diagram below shows where HR1755 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR1755. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR1755