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🌎  Greenwich, United Kingdom [change]

τ5 Serpentis (tau5 Serpentis)

τ5 Serpentis is a main-sequence star in the constellation of Serpens.

τ5 Serpentis visual magnitude is 5.93. Because of its reltive faintness, τ5 Serpentis should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about τ5 Serpentis:

τ5 Serpentis (tau5 Serpentis) is above the horizon from Greenwich, United Kingdom [change]. Altitude: 31°.

Celestial coordinates and finder chart of τ5 Serpentis

τ5 Serpentis 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 τ5 Serpentis are provided in the following table:

15h 36m 29s
+16° 07’ 08”

The simplified sky map below shows the position of τ5 Serpentis in the sky:

Finder chart τ5 Serpentis (tau5 Serpentis) star
Simplified finder chart for τ5 Serpentis (tau5 Serpentis).

Visibility of τ5 Serpentis from your location

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

Today's τ5 Serpentis (tau5 Serpentis) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 73.9°
Max altitude: 54.6°
Azimuth: 286.1°
τ5 Serpentis (tau5 Serpentis) is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of τ5 Serpentis

The image below is a photograph of τ5 Serpentis 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 τ5 Serpentis is 0.076 arcsec per year in Right Ascension and -0.007 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of τ5 Serpentis (tau5 Serpentis) star
DSS2 image of τ5 Serpentis. The red arrow shows the motion of τ5 Serpentis during the next 10000 years (12.67 arcmin in Right Ascension and -1.17 arcmin in declination);

Distance of τ5 Serpentis from the Sun and relative movement

τ5 Serpentis is distant 159.80 light years from the Sun and it is moving towards the Sun at the speed of 2 kilometers per second.

49.02 pc
159.80 ly
-2 km/s
0.076 arcsec/year
-0.007 arcsec/year

Spectral properties of τ5 Serpentis

τ5 Serpentis belongs to spectral class F3 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where τ5 Serpentis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of τ5 Serpentis. Attribution: Richard Powell / CC BY-SA

Alternative designations of τ5 Serpentis

τ5 Serpentis
(tau5 Serpentis)
18 Serpentis