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🌎  Greenwich, United Kingdom [change]

ζ1 Scorpii (zeta1 Scorpii)

ζ1 Scorpii is a variable supergiant star in the constellation of Scorpius.

ζ1 Scorpii visual magnitude is 4.73. Because of its moderate brightness, ζ1 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 ζ1 Scorpii:

4.73
Supergiant
ζ1 Scorpii (zeta1 Scorpii) is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of ζ1 Scorpii

ζ1 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 ζ1 Scorpii are provided in the following table:

16h 53m 59s
-42° 21’ 43”
343.03°
0.87°
Scorpius

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

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

Visibility of ζ1 Scorpii from your location

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

ζ1 Scorpii (zeta1 Scorpii) is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of ζ1 Scorpii

The image below is a photograph of ζ1 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 ζ1 Scorpii is 0.004 arcsec per year in Right Ascension and -0.004 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of ζ1 Scorpii (zeta1 Scorpii) star
DSS2 image of ζ1 Scorpii. The red arrow shows the motion of ζ1 Scorpii during the next 100000 years (6.67 arcmin in Right Ascension and -6.67 arcmin in declination);

Distance of ζ1 Scorpii from the Sun and relative movement

ζ1 Scorpii is distant 32,600,000.00 light years from the Sun and it is moving towards the Sun at the speed of 26 kilometers per second.

10,000,000.00 pc
32,600,000.00 ly
-26 km/s
0.004 arcsec/year
-0.004 arcsec/year

Spectral properties of ζ1 Scorpii

ζ1 Scorpii belongs to spectral class B1 and has a luminosity class of I corresponding to a supergiant star.

-25.27
B1I
6435K

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

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

Alternative designations of ζ1 Scorpii

ζ1 Scorpii
(zeta1 Scorpii)
SAO227375
SAO227375