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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 7:01  
clear_day Transit: 12:12  
SunsetSet: 17:24
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All Constellations » Lyra » 

δ1 Lyrae (delta1 Lyrae)

Altitude: 15.0°   Azimuth: 48.5°   Direction: North-East

δ1 Lyrae is a variable and double main-sequence star in the constellation of Lyra.

δ1 Lyrae visual magnitude is 5.58. Because of its reltive faintness, δ1 Lyrae should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The proper motion of δ1 Lyrae is 0.004 arcsec per year in Right Ascension and -0.002 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of δ1 Lyrae (delta1 Lyrae) star
DSS2 image of δ1 Lyrae. The red arrow shows the motion of δ1 Lyrae during the next 100000 years (6.67 arcmin in Right Ascension and -3.33 arcmin in declination);

Key facts about δ1 Lyrae


δ1 Lyrae (delta1 Lyrae) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 15.0°
Azimuth: 48.5°
Direction: North-East

Celestial coordinates and finder chart of δ1 Lyrae

δ1 Lyrae is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of δ1 Lyrae are provided in the following table:

18h 53m 43s
+36° 58’ 18”

The simplified sky map below shows the position of δ1 Lyrae in the sky:

Finder chart δ1 Lyrae (delta1 Lyrae) star
Simplified finder chart for δ1 Lyrae (delta1 Lyrae).

Visibility of δ1 Lyrae 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 δ1 Lyrae (delta1 Lyrae) 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: 53.0°
Max altitude: 75.5°
Azimuth: 307.0°

Distance of δ1 Lyrae from the Sun and relative movement

δ1 Lyrae is distant 1,079.47 light years from the Sun and it is moving towards the Sun at the speed of 26 kilometers per second.

331.13 pc
1,079.47 ly
-26 km/s
0.004 arcsec/year
-0.002 arcsec/year

Spectral properties of δ1 Lyrae

δ1 Lyrae belongs to spectral class B2 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where δ1 Lyrae is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of δ1 Lyrae. Attribution: Richard Powell / CC BY-SA

δ1 Lyrae star system properties

δ1 Lyrae is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the δ1 Lyrae double sysyem:

174.6 arcsec

Alternative designations of δ1 Lyrae

δ1 Lyrae
(delta1 Lyrae)