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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 6:57  
clear_day Transit: 12:48  
SunsetSet: 18:39 south
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All Constellations » Delphinus » 

γ2 Delphini (gamma2 Delphini)

Altitude: 32.8°   Azimuth: 253.8°   Direction: West-South-West

γ2 Delphini is a double sub-giant star in the constellation of Delphinus.

γ2 Delphini visual magnitude is 4.27. Because of its moderate brightness, γ2 Delphini 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 γ2 Delphini:


γ2 Delphini (gamma2 Delphini) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 32.8°
Azimuth: 253.8°
Direction: West-South-West

Celestial coordinates and finder chart of γ2 Delphini

γ2 Delphini is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of γ2 Delphini are provided in the following table:

20h 46m 39s
+16° 07’ 27”

The simplified sky map below shows the position of γ2 Delphini in the sky:

Finder chart γ2 Delphini (gamma2 Delphini) star
Simplified finder chart for γ2 Delphini (gamma2 Delphini).

Visibility of γ2 Delphini from your location

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

Today's γ2 Delphini (gamma2 Delphini) rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 73.9°
Max altitude: 54.6°
Azimuth: 286.1°

Digitized Sky Survey image of γ2 Delphini

The image below is a photograph of γ2 Delphini 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 γ2 Delphini is -0.032 arcsec per year in Right Ascension and -0.197 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of γ2 Delphini (gamma2 Delphini) star
DSS2 image of γ2 Delphini. The red arrow shows the motion of γ2 Delphini during the next 1000 years (-0.53 arcmin in Right Ascension and -3.28 arcmin in declination);

Distance of γ2 Delphini from the Sun and relative movement

γ2 Delphini is distant 101.43 light years from the Sun and it is moving towards the Sun at the speed of 7 kilometers per second.

31.11 pc
101.43 ly
-7 km/s
-0.032 arcsec/year
-0.197 arcsec/year

Spectral properties of γ2 Delphini

γ2 Delphini belongs to spectral class K1 and has a luminosity class of IV corresponding to a sub-giant star.


The red dot in the diagram below shows where γ2 Delphini is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of γ2 Delphini. Attribution: Richard Powell / CC BY-SA

γ2 Delphini star system properties

γ2 Delphini 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 γ2 Delphini double sysyem:

9.8 arcsec

Alternative designations of γ2 Delphini

γ2 Delphini
(gamma2 Delphini)
12 Delphini