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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: 7:54  
clear_day Transit: 11:51  
SunsetSet: 15:49 south
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All Constellations » Carina » 

Miaplacidus - β Carinae (beta Carinae)

Altitude: -48.9°   Azimuth: 211.7°   Direction: South-South-West

Miaplacidus, also designated as β Carinae (beta Carinae), is a sub-giant star in the constellation of Carina.

Miaplacidus visual magnitude is 1.68, making it the 27th brightest star in the sky. Thanks to its high brightness, Miaplacidus is clearly visible when observed from locations with dark skyes, and should be also quite easily visible from light polluted areas.

The table below summarizes the key facts about Miaplacidus:


Miaplacidus - β Carinae (beta Carinae) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -48.9°
Azimuth: 211.7°
Direction: South-South-West

Celestial coordinates and finder chart of Miaplacidus

Miaplacidus 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 Miaplacidus are provided in the following table:

09h 13m 12s
-69° 43’ 01”

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

Finder chart Miaplacidus - β Carinae (beta Carinae) star
Simplified finder chart for Miaplacidus - β Carinae (beta Carinae).

Visibility of Miaplacidus from your location

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

Miaplacidus - β Carinae (beta Carinae) is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of Miaplacidus

The image below is a photograph of Miaplacidus 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 Miaplacidus is -0.162 arcsec per year in Right Ascension and 0.108 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of Miaplacidus - β Carinae (beta Carinae) star
DSS2 image of Miaplacidus. The red arrow shows the motion of Miaplacidus during the next 1000 years (-2.70 arcmin in Right Ascension and 1.80 arcmin in declination);

Distance of Miaplacidus from the Sun and relative movement

Miaplacidus is distant 111.11 light years from the Sun and it is moving towards the Sun at the speed of 5 kilometers per second.

34.08 pc
111.11 ly
-5 km/s
-0.162 arcsec/year
0.108 arcsec/year

Spectral properties of Miaplacidus

Miaplacidus belongs to spectral class A2 and has a luminosity class of IV corresponding to a sub-giant star.


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

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

Alternative designations of Miaplacidus

β Carinae
(beta Carinae)