Your guide to the Solar System and the night sky
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🌎  Observing from: Greenwich, United Kingdom [change]
🌅 Sunrise: 6:43  ☀️ Transit: 13:03  🌅 Sunset: 19:24

17 Cygni

17 Cygni is a variable and multiple main-sequence star in the constellation of Cygnus.

17 Cygni visual magnitude is 4.99. Because of its moderate brightness, 17 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 17 Cygni:

17 Cygni is above the horizon from Greenwich, United Kingdom [change]. Altitude: 48°.

Celestial coordinates and finder chart of 17 Cygni

17 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 17 Cygni are provided in the following table:

19h 46m 25s
+33° 43’ 40”

The simplified sky map below shows the position of 17 Cygni in the sky:

Finder chart 17 Cygni star
Simplified finder chart for 17 Cygni.

Visibility of 17 Cygni from your location

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

Today's 17 Cygni rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 56.3°
Max altitude: 72.2°
Azimuth: 303.7°
17 Cygni is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 17 Cygni

The image below is a photograph of 17 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 17 Cygni is 0.023 arcsec per year in Right Ascension and -0.446 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of 17 Cygni star
DSS2 image of 17 Cygni. The red arrow shows the motion of 17 Cygni during the next 1000 years (0.38 arcmin in Right Ascension and -7.43 arcmin in declination);

Distance of 17 Cygni from the Sun and relative movement

17 Cygni is distant 68.00 light years from the Sun and it is moving far from the Sun at the speed of 5 kilometers per second.

20.86 pc
68.00 ly
5 km/s
0.023 arcsec/year
-0.446 arcsec/year

Spectral properties of 17 Cygni

17 Cygni belongs to spectral class F7 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where 17 Cygni is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 17 Cygni. Attribution: Richard Powell / CC BY-SA

17 Cygni star system properties

17 Cygni is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the 17 Cygni double sysyem:

26 arcsec

Alternative designations of 17 Cygni

Gl 767.1A