17 Cygni

Above the horizon. Rise: 9:46 | Tran: 19:31 | Set: 5:21

Alt: 70.38° Az: 210.15° Direction: South-South-West

17 Cygni is a variable and multiple main-sequence star of spectral class F7 in the constellation of Cygnus.

17 Cygni visual magnitude is 4.99. Because of its moderate brightness, 17 Cygni is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

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);

Celestial Coordinates

Apparent

Right Ascension 19h 47m 22s

Declination +33° 47’ 23”

Hour Angle 00h 46m 49s

Sideral Time 20h 34m 11s

J2000

Right Ascension 19h 46m 25s

Declination +33° 43’ 40”

Galactic Coordinates

Galactic Longitude 68.81°

Galactic Latitude 4.44°

Finder Chart

Simplified finder chart for 17 Cygni.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.99

Class Main-sequence

Absolute magnitude 3.39

Spectral Type F7V

Color Index (B-V) 0.47

Temperature 6528K

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

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

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:

Main star magnitude 4.99

Secondary star magnitude 8.49

Magnitude difference 3.5

Separation 26 arcsec

Distance, Radial Speed, Proper Motion

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.

Distance (parsec) 20.86

Distance (light year) 68.00

Radial Speed 5 km/s

Proper Motion RA 0.023 arcsec/y

Proper Motion Dec -0.446"/y

Alternative Designations

Flamsteed designation 17 Cygni

Henry Draper Catalogue HD187013

SAO Catalogue SAO68827

Hipparcos Catalogue HIP97295

Durchmusterung Catalogue BD+33 3587

Gliese Catalogue Gl 767.1A

General Catalogue of Variable Stars 12398

Aitken Double Star Catalogue ADS12913

Visibility from Your Location

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

Azimuth: 56.2° RISE 9:46

Max altitude: 72.3° TRANSIT 19:31

Azimuth: 303.8° SET 5:21

Set Location

Other stars in Cygnus