Your guide to the Solar System and the night sky
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🌎  Observing from: Greenwich, United Kingdom [change]
🌅 Sunrise: 6:03  ☀️ Transit: 12:06  🌅 Sunset: 18:09

Praecipua - 46 Leonis Minoris

Praecipua, also designated as 46 Leonis Minoris , is a variable hypergiant star in the constellation of Leo Minor.

Praecipua visual magnitude is 3.83. Because of its moderate brightness, Praecipua 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 Praecipua:

Praecipua - 46 Leonis Minoris is above the horizon from Greenwich, United Kingdom [change]. Altitude: 39°.

Celestial coordinates and finder chart of Praecipua

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

10h 53m 18s
+34° 12’ 54”
Leo Minor

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

Finder chart Praecipua - 46 Leonis Minoris star
Simplified finder chart for Praecipua - 46 Leonis Minoris.

Visibility of Praecipua from your location

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

Today's Praecipua - 46 Leonis Minoris rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 55.8°
Max altitude: 72.7°
Azimuth: 304.2°
Praecipua - 46 Leonis Minoris is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of Praecipua

The image below is a photograph of Praecipua 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 Praecipua is 0.087 arcsec per year in Right Ascension and -0.278 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of Praecipua - 46 Leonis Minoris star
DSS2 image of Praecipua. The red arrow shows the motion of Praecipua during the next 1000 years (1.45 arcmin in Right Ascension and -4.63 arcmin in declination);

Distance of Praecipua from the Sun and relative movement

Praecipua is distant 97.60 light years from the Sun and it is moving far from the Sun at the speed of 16 kilometers per second.

29.94 pc
97.60 ly
16 km/s
0.087 arcsec/year
-0.278 arcsec/year

Spectral properties of Praecipua

Praecipua belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.


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

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

Alternative designations of Praecipua

46 Leonis Minoris