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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:04  
clear_day Transit: 12:06  
SunsetSet: 18:09
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All Constellations » Scorpius » 

Paikauhale - τ Scorpii (tau Scorpii)

Altitude: 5.9°   Azimuth: 206.7°   Direction: South-South-West

Paikauhale, also designated as τ Scorpii (tau Scorpii), is a hypergiant star in the constellation of Scorpius.

Paikauhale visual magnitude is 2.82. Thanks to its high brightness, Paikauhale is clearly visible when observed from locations with dark skies, and should be also quite easily visible from light polluted areas.

The proper motion of Paikauhale is -0.008 arcsec per year in Right Ascension and -0.022 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of Paikauhale - τ Scorpii (tau Scorpii) star
DSS2 image of Paikauhale. The red arrow shows the motion of Paikauhale during the next 10000 years (-1.33 arcmin in Right Ascension and -3.67 arcmin in declination);

Key facts about Paikauhale

2.82
Hypergiant

Paikauhale - τ Scorpii (tau Scorpii) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 5.9°
Azimuth: 206.7°
Direction: South-South-West

Celestial coordinates and finder chart of Paikauhale

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

16h 35m 53s
-28° 12’ 57”
351.54°
12.81°
Scorpius

The simplified sky map below shows the position of Paikauhale in the sky:

Finder chart Paikauhale - τ Scorpii (tau Scorpii) star
Simplified finder chart for Paikauhale - τ Scorpii (tau Scorpii).

Visibility of Paikauhale 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 Paikauhale - τ Scorpii (tau Scorpii) 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: 118.2°
Max altitude: 10.3°
Azimuth: 241.8°

Distance of Paikauhale from the Sun and relative movement

Paikauhale is distant 429.51 light years from the Sun and it is moving far from the Sun at the speed of 2 kilometers per second.

131.75 pc
429.51 ly
2 km/s
-0.008 arcsec/year
-0.022 arcsec/year

Spectral properties of Paikauhale

Paikauhale belongs to spectral class B0 and has a luminosity class of V corresponding to a hypergiant star.

-2.78
B0V
14924K

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

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

Alternative designations of Paikauhale

Paikauhale
τ Scorpii
(tau Scorpii)
SAO184481
SAO184481