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public LocationGreenwich, UK
Sunrise: 5:07 
Transit: 13:06 
Sunset: 21:04
wb_twilight   (Astronomical Twilight)   What's Visible Now?
All Constellations » Perseus » 

16 Persei

Above the horizon.  Rise: 20:21 | Tran: 8:01 | Set: 19:38
Alt: 18.68°   Az: 51.06°   Direction: North-East

16 Persei is a variable and multiple giant star of spectral class F2 in the constellation of Perseus.

16 Persei visual magnitude is 4.23. Because of its moderate brightness, 16 Persei 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.

Image of 16 Persei star
DSS2 image of 16 Persei. The red arrow shows the motion of 16 Persei during the next 1000 years (3.28 arcmin in Right Ascension and -1.75 arcmin in declination);

Celestial Coordinates


02h 52m 08s
+38° 25’ 07”
16h 40m 28s
19h 32m 36s


02h 50m 35s
+38° 19’ 06”

Galactic Coordinates


Finder Chart

Finder chart 16 Persei star
Simplified finder chart for 16 Persei.

Magnitude, Color, Spectral Class



The red dot in the diagram below shows where 16 Persei is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 16 Persei. Attribution: Richard Powell / CC BY-SA

Star System Properties

16 Persei is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the 16 Persei double sysyem:

249.3 arcsec

Distance, Radial Speed, Proper Motion

16 Persei is distant 127.64 light years from the Sun and it is moving far from the Sun at the speed of 14 kilometers per second.

14 km/s
0.197 arcsec/y

Alternative Designations


Visibility from Your Location

Today's 16 Persei rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 51.6°
Max altitude: 76.9°
Azimuth: 308.4°