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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 4:43 
Transit: 13:00 
Sunset: 21:18
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All Constellations » Delphinus » 

Aldulfin - ε Delphini (epsilon Delphini)

Below the horizon.  Rise: 20:55 | Tran: 3:55 | Set: 10:52
Alt: -26.44°   Az: 348.19°   Direction: North-North-West

Aldulfin, also designated as ε Delphini (epsilon Delphini), is a variable giant star of spectral class B6 in the constellation of Delphinus.

Aldulfin visual magnitude is 4.03. Because of its moderate brightness, Aldulfin 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 Aldulfin - ε Delphini (epsilon Delphini) star
DSS2 image of Aldulfin. The red arrow shows the motion of Aldulfin during the next 10000 years (2.17 arcmin in Right Ascension and -3.67 arcmin in declination);

Celestial Coordinates

Apparent

20h 34m 25s
+11° 23’ 29”
11h 16m 54s
07h 51m 20s

J2000

20h 33m 12s
+11° 18’ 11”

Galactic Coordinates

55.42°
-16.59°

Finder Chart

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Finder chart for Aldulfin - ε Delphini (epsilon Delphini).

Magnitude, Color, Spectral Class

4.03
Giant

-1.18
B6III
12103K

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

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

Distance, Radial Speed, Proper Motion

Aldulfin is distant 358.64 light years from the Sun and it is moving towards the Sun at the speed of 19 kilometers per second.

110.01
358.64
-19 km/s
0.013 arcsec/y
-0.022"/y

Alternative Designations

Aldulfin
ε Delphini
(epsilon Delphini)
SAO106230
SAO106230

Visibility from Your Location

Today's Aldulfin - ε Delphini (epsilon Delphini) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 78.6°
Max altitude: 49.9°
Azimuth: 281.4°