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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
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All Constellations » Cassiopeia » 

Ruchbah - δ Cassiopeiae (delta Cassiopeiae)

Altitude: 23.4°   Azimuth: 347.0°   Direction: North-North-West

Ruchbah, also designated as δ Cassiopeiae (delta Cassiopeiae), is a variable and double giant star in the constellation of Cassiopeia.

Ruchbah visual magnitude is 2.68. Thanks to its high brightness, Ruchbah is clearly visible when observed from locations with dark skyes, and should be also quite easily visible from light polluted areas.

The table below summarizes the key facts about Ruchbah:


Ruchbah - δ Cassiopeiae (delta Cassiopeiae) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 23.4°
Azimuth: 347.0°
Direction: North-North-West

Celestial coordinates and finder chart of Ruchbah

Ruchbah is situated close to the northern celestial pole and, as such, it is visible for most part of the year from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of Ruchbah are provided in the following table:

01h 25m 49s
+60° 14’ 07”

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

Finder chart Ruchbah - δ Cassiopeiae (delta Cassiopeiae) star
Simplified finder chart for Ruchbah - δ Cassiopeiae (delta Cassiopeiae).

Visibility of Ruchbah from your location

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

Ruchbah - δ Cassiopeiae (delta Cassiopeiae) is circumpolar and transits at 20:08 UTC (altitude: 81.2°)

Digitized Sky Survey image of Ruchbah

The image below is a photograph of Ruchbah 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 Ruchbah is 0.297 arcsec per year in Right Ascension and -0.051 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of Ruchbah - δ Cassiopeiae (delta Cassiopeiae) star
DSS2 image of Ruchbah. The red arrow shows the motion of Ruchbah during the next 1000 years (4.95 arcmin in Right Ascension and -0.85 arcmin in declination);

Distance of Ruchbah from the Sun and relative movement

Ruchbah is distant 99.36 light years from the Sun and it is moving far from the Sun at the speed of 7 kilometers per second.

30.48 pc
99.36 ly
7 km/s
0.297 arcsec/year
-0.051 arcsec/year

Spectral properties of Ruchbah

Ruchbah belongs to spectral class A5 and has a luminosity class of III corresponding to a giant star.


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

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

Ruchbah star system properties

Ruchbah 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 Ruchbah double sysyem:

131.7 arcsec

Alternative designations of Ruchbah

δ Cassiopeiae
(delta Cassiopeiae)
37 Cassiopeiae