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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: 7:51  
clear_day Transit: 11:50  
SunsetSet: 15:49 south
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All Constellations » Cygnus » 

ι2 Cygni (iota2 Cygni)

Altitude: 51.0°   Azimuth: 296.9°   Direction: West-North-West

ι2 Cygni is a main-sequence star in the constellation of Cygnus.

ι2 Cygni visual magnitude is 3.79. Because of its moderate brightness, ι2 Cygni 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 ι2 Cygni:


ι2 Cygni (iota2 Cygni) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 51.0°
Azimuth: 296.9°
Direction: West-North-West

Celestial coordinates and finder chart of ι2 Cygni

ι2 Cygni 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 ι2 Cygni are provided in the following table:

19h 29m 42s
+51° 43’ 46”

The simplified sky map below shows the position of ι2 Cygni in the sky:

Finder chart ι2 Cygni (iota2 Cygni) star
Simplified finder chart for ι2 Cygni (iota2 Cygni).

Visibility of ι2 Cygni from your location

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

ι2 Cygni (iota2 Cygni) is circumpolar and transits at 14:17 UTC (altitude: 89.8°)

Digitized Sky Survey image of ι2 Cygni

The image below is a photograph of ι2 Cygni 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 ι2 Cygni is 0.02 arcsec per year in Right Ascension and 0.13 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of ι2 Cygni (iota2 Cygni) star
DSS2 image of ι2 Cygni. The red arrow shows the motion of ι2 Cygni during the next 1000 years (0.33 arcmin in Right Ascension and 2.17 arcmin in declination);

Distance of ι2 Cygni from the Sun and relative movement

ι2 Cygni is distant 122.42 light years from the Sun and it is moving towards the Sun at the speed of 20 kilometers per second.

37.55 pc
122.42 ly
-20 km/s
0.02 arcsec/year
0.13 arcsec/year

Spectral properties of ι2 Cygni

ι2 Cygni belongs to spectral class A5 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where ι2 Cygni is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of ι2 Cygni. Attribution: Richard Powell / CC BY-SA

Alternative designations of ι2 Cygni

ι2 Cygni
(iota2 Cygni)