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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
SunriseRise: 6:52  
clear_day Transit: 12:11  
SunsetSet: 17:31
sunny DaytimeWhat's Visible Now?
All Constellations » Cetus » 

HR228

Altitude: -24.6°   Azimuth: 98.4°   Direction: East

HR228 is a double giant star in the constellation of Cetus.

HR228 visual magnitude is 5.9. Because of its reltive faintness, HR228 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR228 is 0.078 arcsec per year in Right Ascension and -0.051 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR228 star
DSS2 image of HR228. The red arrow shows the motion of HR228 during the next 10000 years (13.00 arcmin in Right Ascension and -8.50 arcmin in declination);

Key facts about HR228

5.9
Giant

HR228 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -24.6°
Azimuth: 98.4°
Direction: East

Celestial coordinates and finder chart of HR228

HR228 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 HR228 are provided in the following table:

00h 49m 13s
-24° 08’ 11”
113.36°
-86.97°
Cetus

The simplified sky map below shows the position of HR228 in the sky:

Finder chart HR228 star
Simplified finder chart for HR228.

Visibility of HR228 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 HR228 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: 114.1°
Max altitude: 14.4°
Azimuth: 245.9°

Distance of HR228 from the Sun and relative movement

HR228 is distant 184.18 light years from the Sun and it is moving far from the Sun at the speed of 23 kilometers per second.

56.50 pc
184.18 ly
23 km/s
0.078 arcsec/year
-0.051 arcsec/year

Spectral properties of HR228

HR228 belongs to spectral class K2 and has a luminosity class of III corresponding to a giant star.

2.14
K2III
4866K

The red dot in the diagram below shows where HR228 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR228. Attribution: Richard Powell / CC BY-SA

HR228 star system properties

HR228 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR228 double sysyem:

5.9
13.6
7.7
8.8 arcsec

Alternative designations of HR228

SAO166602
SAO166602