Your guide to the Solar System and the night sky
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🌎  Observing from: Greenwich, United Kingdom [change]
🌅 Sunrise: 6:50  ☀️ Transit: 13:04  🌅 Sunset: 19:19


HR243 is a hypergiant star in the constellation of Pisces.

HR243 visual magnitude is 6.37. Because of its reltive faintness, HR243 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 HR243:

HR243 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR243

HR243 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 HR243 are provided in the following table:

00h 51m 18s
+03° 23’ 05”

The simplified sky map below shows the position of HR243 in the sky:

Finder chart HR243 star
Simplified finder chart for HR243.

Visibility of HR243 from your location

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

Today's HR243 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 86.6°
Max altitude: 41.9°
Azimuth: 273.4°
HR243 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR243

The image below is a photograph of HR243 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 HR243 is 0.016 arcsec per year in Right Ascension and -0.067 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR243 star
DSS2 image of HR243. The red arrow shows the motion of HR243 during the next 10000 years (2.67 arcmin in Right Ascension and -11.17 arcmin in declination);

Distance of HR243 from the Sun and relative movement

HR243 is distant 448.42 light years from the Sun and it is moving far from the Sun at the speed of 6 kilometers per second.

137.55 pc
448.42 ly
6 km/s
0.016 arcsec/year
-0.067 arcsec/year

Spectral properties of HR243

HR243 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 HR243 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR243. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR243