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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
north SunriseRise: 7:50  
clear_day Transit: 11:50  
SunsetSet: 15:49 south
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All Constellations » Cassiopeia » 

Fulu - ζ Cassiopeiae (zeta Cassiopeiae)

Altitude: 82.9°   Azimuth: 65.9°   Direction: East-North-East

Fulu, also designated as ζ Cassiopeiae (zeta Cassiopeiae), is a variable sub-giant star in the constellation of Cassiopeia.

Fulu visual magnitude is 3.66. Because of its moderate brightness, Fulu should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about Fulu:


Fulu - ζ Cassiopeiae (zeta Cassiopeiae) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 82.9°
Azimuth: 65.9°
Direction: East-North-East

Celestial coordinates and finder chart of Fulu

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

00h 36m 58s
+53° 53’ 48”

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

Finder chart Fulu - ζ Cassiopeiae (zeta Cassiopeiae) star
Simplified finder chart for Fulu - ζ Cassiopeiae (zeta Cassiopeiae).

Visibility of Fulu from your location

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

Fulu - ζ Cassiopeiae (zeta Cassiopeiae) is circumpolar and transits at 19:27 UTC (altitude: 87.6°)

Digitized Sky Survey image of Fulu

The image below is a photograph of Fulu 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 Fulu is 0.019 arcsec per year in Right Ascension and -0.009 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of Fulu - ζ Cassiopeiae (zeta Cassiopeiae) star
DSS2 image of Fulu. The red arrow shows the motion of Fulu during the next 10000 years (3.17 arcmin in Right Ascension and -1.50 arcmin in declination);

Distance of Fulu from the Sun and relative movement

Fulu is distant 597.07 light years from the Sun and it is moving far from the Sun at the speed of 2 kilometers per second.

183.15 pc
597.07 ly
2 km/s
0.019 arcsec/year
-0.009 arcsec/year

Spectral properties of Fulu

Fulu belongs to spectral class B2 and has a luminosity class of IV corresponding to a sub-giant star.


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

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

Alternative designations of Fulu

ζ Cassiopeiae
(zeta Cassiopeiae)
17 Cassiopeiae