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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:52  
clear_day Transit: 11:51  
SunsetSet: 15:49 south
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All Constellations » Scorpius » 

Pipirima - μ2 Scorpii (mu2 Scorpii)

Altitude: -63.0°   Azimuth: 286.6°   Direction: West-North-West

Pipirima, also designated as μ2 Scorpii (mu2 Scorpii), is a double sub-giant star in the constellation of Scorpius.

Pipirima visual magnitude is 3.57. Because of its moderate brightness, Pipirima 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 Pipirima:


Pipirima - μ2 Scorpii (mu2 Scorpii) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -63.0°
Azimuth: 286.6°
Direction: West-North-West

Celestial coordinates and finder chart of Pipirima

Pipirima 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 Pipirima are provided in the following table:

16h 52m 20s
-38° 01’ 02”

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

Finder chart Pipirima - μ2 Scorpii (mu2 Scorpii) star
Simplified finder chart for Pipirima - μ2 Scorpii (mu2 Scorpii).

Visibility of Pipirima 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 Pipirima - μ2 Scorpii (mu2 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: 128.0°
Max altitude: 0.5°
Azimuth: 232.0°

Digitized Sky Survey image of Pipirima

The image below is a photograph of Pipirima 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 Pipirima is -0.011 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 Pipirima - μ2 Scorpii (mu2 Scorpii) star
DSS2 image of Pipirima. The red arrow shows the motion of Pipirima during the next 10000 years (-1.83 arcmin in Right Ascension and -4.00 arcmin in declination);

Distance of Pipirima from the Sun and relative movement

Pipirima is distant 516.64 light years from the Sun and it is moving far from the Sun at the speed of 1 kilometers per second.

158.48 pc
516.64 ly
1 km/s
-0.011 arcsec/year
-0.024 arcsec/year

Spectral properties of Pipirima

Pipirima belongs to spectral class B2 and has a luminosity class of IV corresponding to a sub-giant star.


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

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

Pipirima star system properties

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

390 arcsec

Alternative designations of Pipirima

μ2 Scorpii
(mu2 Scorpii)