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🌎  Greenwich, United Kingdom [change]

ζ2 Scorpii (zeta2 Scorpii)

ζ2 Scorpii is a variable giant star in the constellation of Scorpius.

ζ2 Scorpii visual magnitude is 3.62. Because of its moderate brightness, ζ2 Scorpii 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 ζ2 Scorpii:

3.62
Giant
ζ2 Scorpii (zeta2 Scorpii) is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of ζ2 Scorpii

ζ2 Scorpii is situated south of the celestial equator, as such, it is more easily visible from the southern emisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of ζ2 Scorpii are provided in the following table:

16h 54m 34s
-42° 21’ 41”
343.1°
0.79°
Scorpius

The simplified sky map below shows the position of ζ2 Scorpii in the sky:

Finder chart ζ2 Scorpii (zeta2 Scorpii) star
Simplified finder chart for ζ2 Scorpii (zeta2 Scorpii).

Visibility of ζ2 Scorpii from your location

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

ζ2 Scorpii (zeta2 Scorpii) is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of ζ2 Scorpii

The image below is a photograph of ζ2 Scorpii 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 ζ2 Scorpii is -0.124 arcsec per year in Right Ascension and -0.236 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of ζ2 Scorpii (zeta2 Scorpii) star
DSS2 image of ζ2 Scorpii. The red arrow shows the motion of ζ2 Scorpii during the next 1000 years (-2.07 arcmin in Right Ascension and -3.93 arcmin in declination);

Distance of ζ2 Scorpii from the Sun and relative movement

ζ2 Scorpii is distant 150.44 light years from the Sun and it is moving towards the Sun at the speed of 19 kilometers per second.

46.15 pc
150.44 ly
-19 km/s
-0.124 arcsec/year
-0.236 arcsec/year

Spectral properties of ζ2 Scorpii

ζ2 Scorpii belongs to spectral class K4 and has a luminosity class of III corresponding to a giant star.

0.30
K4III
4000K

The red dot in the diagram below shows where ζ2 Scorpii is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of ζ2 Scorpii. Attribution: Richard Powell / CC BY-SA

Alternative designations of ζ2 Scorpii

ζ2 Scorpii
(zeta2 Scorpii)
SAO227402
SAO227402