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: 4:46  
clear_day Transit: 12:56  
SunsetSet: 21:07 south
sunny DaytimeWhat's Visible Now
All Constellations » Taurus » 


Altitude: 52.3°   Azimuth: 227.7°   Direction: South-West

HR1633 is a hypergiant star in the constellation of Taurus.

HR1633 visual magnitude is 6.19. Because of its reltive faintness, HR1633 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 HR1633:


HR1633 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 52.3°
Azimuth: 227.7°
Direction: South-West

Celestial coordinates and finder chart of HR1633

HR1633 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 HR1633 are provided in the following table:

05h 04m 21s
+21° 16’ 41”

The simplified sky map below shows the position of HR1633 in the sky:

Finder chart HR1633 star
Simplified finder chart for HR1633.

Visibility of HR1633 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 HR1633 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: 68.7°
Max altitude: 59.8°
Azimuth: 291.3°
HR1633 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR1633

The image below is a photograph of HR1633 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 HR1633 is 0.02 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 HR1633 star
DSS2 image of HR1633. The red arrow shows the motion of HR1633 during the next 10000 years (3.33 arcmin in Right Ascension and -2.50 arcmin in declination);

Distance of HR1633 from the Sun and relative movement

HR1633 is distant 615.09 light years from the Sun and it is moving far from the Sun at the speed of 48 kilometers per second.

188.68 pc
615.09 ly
48 km/s
0.02 arcsec/year
-0.015 arcsec/year

Spectral properties of HR1633

HR1633 belongs to spectral class K0


The red dot in the diagram below shows where HR1633 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR1633. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR1633