Your guide to the Solar System and the night sky
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🌎  Observing from: Greenwich, United Kingdom [change]
🌅 Sunrise: 5:54  ☀️ Transit: 12:05  🌅 Sunset: 18:16

ι Cassiopeiae (iota Cassiopeiae)

ι Cassiopeiae is a variable and multiple star in the constellation of Cassiopeia.

ι Cassiopeiae visual magnitude is 4.52. Because of its moderate brightness, ι Cassiopeiae 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 ι Cassiopeiae:

ι Cassiopeiae (iota Cassiopeiae) is above the horizon from Greenwich, United Kingdom [change]. Altitude: 50°.

Celestial coordinates and finder chart of ι Cassiopeiae

ι Cassiopeiae 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 ι Cassiopeiae are provided in the following table:

02h 29m 03s
+67° 24’ 09”

The simplified sky map below shows the position of ι Cassiopeiae in the sky:

Finder chart ι Cassiopeiae (iota Cassiopeiae) star
Simplified finder chart for ι Cassiopeiae (iota Cassiopeiae).

Visibility of ι Cassiopeiae from your location

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

ι Cassiopeiae (iota Cassiopeiae) is circumpolar and transits at 14:21 UTC (altitude: 74.1°)

Digitized Sky Survey image of ι Cassiopeiae

The image below is a photograph of ι Cassiopeiae 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 ι Cassiopeiae is -0.017 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 ι Cassiopeiae (iota Cassiopeiae) star
DSS2 image of ι Cassiopeiae. The red arrow shows the motion of ι Cassiopeiae during the next 10000 years (-2.83 arcmin in Right Ascension and 1.83 arcmin in declination);

Distance of ι Cassiopeiae from the Sun and relative movement

ι Cassiopeiae is distant 141.49 light years from the Sun and it is moving far from the Sun at the speed of 1 kilometers per second.

43.40 pc
141.49 ly
1 km/s
-0.017 arcsec/year
0.011 arcsec/year

Spectral properties of ι Cassiopeiae

ι Cassiopeiae belongs to spectral class A5 ι Cassiopeiae is also a Sr chemically peculiar star.


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

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

ι Cassiopeiae star system properties

ι Cassiopeiae is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the ι Cassiopeiae double sysyem:

2.3 arcsec

Alternative designations of ι Cassiopeiae

ι Cassiopeiae
(iota Cassiopeiae)