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
Donate now and help us to keep this site free and ad-free!
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:38  
clear_day Transit: 11:46  
SunsetSet: 15:54 south
sunny DaytimeWhat's Visible Now?
All Constellations » Cygnus » 

ι1 Cygni (iota1 Cygni)

Altitude: 32.3°   Azimuth: 44.9°   Direction: North-East

ι1 Cygni is a main-sequence star in the constellation of Cygnus.

ι1 Cygni visual magnitude is 5.75. Because of its reltive faintness, ι1 Cygni should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about ι1 Cygni:


ι1 Cygni (iota1 Cygni) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 32.3°
Azimuth: 44.9°
Direction: North-East

Celestial coordinates and finder chart of ι1 Cygni

ι1 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 ι1 Cygni are provided in the following table:

19h 27m 25s
+52° 19’ 14”

The simplified sky map below shows the position of ι1 Cygni in the sky:

Finder chart ι1 Cygni (iota1 Cygni) star
Simplified finder chart for ι1 Cygni (iota1 Cygni).

Visibility of ι1 Cygni from your location

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

ι1 Cygni (iota1 Cygni) is circumpolar and transits at 14:54 UTC (altitude: 89.2°)

Digitized Sky Survey image of ι1 Cygni

The image below is a photograph of ι1 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 ι1 Cygni is -0.014 arcsec per year in Right Ascension and -0.024 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of ι1 Cygni (iota1 Cygni) star
DSS2 image of ι1 Cygni. The red arrow shows the motion of ι1 Cygni during the next 10000 years (-2.33 arcmin in Right Ascension and -4.00 arcmin in declination);

Distance of ι1 Cygni from the Sun and relative movement

ι1 Cygni is distant 361.42 light years from the Sun and it is moving far from the Sun at the speed of 2 kilometers per second.

110.86 pc
361.42 ly
2 km/s
-0.014 arcsec/year
-0.024 arcsec/year

Spectral properties of ι1 Cygni

ι1 Cygni belongs to spectral class A1 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where ι1 Cygni is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of ι1 Cygni. Attribution: Richard Powell / CC BY-SA

Alternative designations of ι1 Cygni

ι1 Cygni
(iota1 Cygni)