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: 6:43  
clear_day Transit: 12:51  
SunsetSet: 18:59 south
sunny DaytimeWhat's Visible Now
All Constellations » Cetus » 


Altitude: -51.4°   Azimuth: 51.6°   Direction: North-East

HR220 is a main-sequence star in the constellation of Cetus.

HR220 visual magnitude is 5.57. Because of its reltive faintness, HR220 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 HR220:


HR220 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -51.4°
Azimuth: 51.6°
Direction: North-East

Celestial coordinates and finder chart of HR220

HR220 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 HR220 are provided in the following table:

00h 48m 01s
-21° 43’ 21”

The simplified sky map below shows the position of HR220 in the sky:

Finder chart HR220 star
Simplified finder chart for HR220.

Visibility of HR220 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 HR220 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: 111.7°
Max altitude: 16.8°
Azimuth: 248.3°

Digitized Sky Survey image of HR220

The image below is a photograph of HR220 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 HR220 is 0.028 arcsec per year in Right Ascension and -0.011 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR220 star
DSS2 image of HR220. The red arrow shows the motion of HR220 during the next 10000 years (4.67 arcmin in Right Ascension and -1.83 arcmin in declination);

Distance of HR220 from the Sun and relative movement

HR220 is distant 485.12 light years from the Sun and it is moving far from the Sun at the speed of 21 kilometers per second.

148.81 pc
485.12 ly
21 km/s
0.028 arcsec/year
-0.011 arcsec/year

Spectral properties of HR220

HR220 belongs to spectral class B9 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR220 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR220. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR220