Your guide to the Solar System and the night sky
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🌎  Greenwich, United Kingdom [change]

ζ1 Lyrae (zeta1 Lyrae)

ζ1 Lyrae is a variable and multiple star in the constellation of Lyra.

ζ1 Lyrae visual magnitude is 4.36. Because of its moderate brightness, ζ1 Lyrae 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 ζ1 Lyrae:

4.36
ζ1 Lyrae (zeta1 Lyrae) is above the horizon from Greenwich, United Kingdom [change]. Altitude: 63°.

Celestial coordinates and finder chart of ζ1 Lyrae

ζ1 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 ζ1 Lyrae are provided in the following table:

18h 44m 46s
+37° 36’ 17”
66.85°
17.38°
Lyra

The simplified sky map below shows the position of ζ1 Lyrae in the sky:

Finder chart ζ1 Lyrae (zeta1 Lyrae) star
Simplified finder chart for ζ1 Lyrae (zeta1 Lyrae).

Visibility of ζ1 Lyrae from your location

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

Today's ζ1 Lyrae (zeta1 Lyrae) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 52.4°
Max altitude: 76.1°
Azimuth: 307.6°
ζ1 Lyrae (zeta1 Lyrae) is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of ζ1 Lyrae

The image below is a photograph of ζ1 Lyrae 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 ζ1 Lyrae is 0.028 arcsec per year in Right Ascension and 0.024 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of ζ1 Lyrae (zeta1 Lyrae) star
DSS2 image of ζ1 Lyrae. The red arrow shows the motion of ζ1 Lyrae during the next 10000 years (4.67 arcmin in Right Ascension and 4.00 arcmin in declination);

Distance of ζ1 Lyrae from the Sun and relative movement

ζ1 Lyrae is distant 153.56 light years from the Sun and it is moving towards the Sun at the speed of 26 kilometers per second.

47.10 pc
153.56 ly
-26 km/s
0.028 arcsec/year
0.024 arcsec/year

Spectral properties of ζ1 Lyrae

ζ1 Lyrae belongs to spectral class A4

0.99
A4
8241K

The red dot in the diagram below shows where ζ1 Lyrae is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of ζ1 Lyrae. Attribution: Richard Powell / CC BY-SA

ζ1 Lyrae star system properties

ζ1 Lyrae is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the ζ1 Lyrae double sysyem:

4.36
5.76
1.4
43.7 arcsec

Alternative designations of ζ1 Lyrae

ζ1 Lyrae
(zeta1 Lyrae)
SAO67321
SAO67321