We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
A Complete Guide to the Solar System and the Night Sky
Help keep this site free and ads-free! Donate Now!
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:08  
clear_day Transit: 12:59  
SunsetSet: 19:51
sleep NighttimeWhat's Visible Now?
All Constellations » Phoenix » 

η Phoenicis (eta Phoenicis)

Altitude: -73.4°   Azimuth: 121.6°   Direction: East-South-East

η Phoenicis is a double hypergiant star in the constellation of Phoenix.

η Phoenicis visual magnitude is 4.36. Because of its moderate brightness, η Phoenicis should be easily visible from locations with dark skies, while it can be barely visible, or not visible at all, from skies affected by light pollution.

The proper motion of η Phoenicis is -0.006 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 η Phoenicis (eta Phoenicis) star
DSS2 image of η Phoenicis. The red arrow shows the motion of η Phoenicis during the next 10000 years (-1.00 arcmin in Right Ascension and 1.83 arcmin in declination);

Key facts about η Phoenicis

4.36
Hypergiant

η Phoenicis (eta Phoenicis) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -73.4°
Azimuth: 121.6°
Direction: East-South-East

Celestial coordinates and finder chart of η Phoenicis

η Phoenicis is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of η Phoenicis are provided in the following table:

00h 43m 21s
-57° 27’ 47”
305.08°
-59.63°
Phoenix

The simplified sky map below shows the position of η Phoenicis in the sky:

Finder chart η Phoenicis (eta Phoenicis) star
Simplified finder chart for η Phoenicis (eta Phoenicis).

Visibility of η Phoenicis from your location

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

η Phoenicis (eta Phoenicis) is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of η Phoenicis from the Sun and relative movement

η Phoenicis is distant 240.24 light years from the Sun and it is moving far from the Sun at the speed of 2 kilometers per second.

73.69 pc
240.24 ly
2 km/s
-0.006 arcsec/year
0.011 arcsec/year

Spectral properties of η Phoenicis

η Phoenicis belongs to spectral class A0 and has a luminosity class of IV corresponding to a hypergiant star.

0.02
A0IV
10125K

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

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

η Phoenicis star system properties

η Phoenicis 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 η Phoenicis double sysyem:

4.36
11.36
7
19.8 arcsec

Alternative designations of η Phoenicis

η Phoenicis
(eta Phoenicis)
SAO232162
SAO232162