We use cookies to deliver essential features and to measure their performance. Learn more.
We're free & ads-free thanks to your support
public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 4:59 
Transit: 13:04 
Sunset: 21:08
sunny   (Daytime)   What's Visible Now?
All Constellations » Cygnus » 

Azelfafage - π1 Cygni (pi1 Cygni)

Above the horizon.  Circumpolar today
Alt: 13.01°   Az: 354.82°   Direction: North

Azelfafage, also designated as π1 Cygni (pi1 Cygni), is a sub-giant star of spectral class B3 in the constellation of Cygnus.

Azelfafage visual magnitude is 4.67. Because of its moderate brightness, Azelfafage 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.

Azelfafage is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere.

Image of Azelfafage - π1 Cygni (pi1 Cygni) star
DSS2 image of Azelfafage. The red arrow shows the motion of Azelfafage during the next 100000 years (10.00 arcmin in Right Ascension and -10.00 arcmin in declination);

Celestial Coordinates

Apparent

21h 42m 58s
+51° 18’ 08”
11h 27m 40s

J2000

21h 42m 05s
+51° 11’ 22”

Galactic Coordinates

95.48°
-1.3°

Finder Chart

Finder chart Azelfafage - π1 Cygni (pi1 Cygni) star
Simplified finder chart for Azelfafage - π1 Cygni (pi1 Cygni).

Magnitude, Color, Spectral Class

4.67
Sub-giant

-3.89
B3IV
11920K

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

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

Distance, Radial Speed, Proper Motion

Azelfafage is distant 1,680.41 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

515.46 pc
1,680.41 ly
-8 km/s
0.006 arcsec/y
-0.006 "/y

Alternative Designations

Azelfafage
π1 Cygni
(pi1 Cygni)
SAO33665
SAO33665

Visibility from Your Location

Azelfafage - π1 Cygni (pi1 Cygni) is circumpolar and transits at 02:13 UTC (altitude: 89.8°)