Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:52  
clear_day Transit: 12:55  
SunsetSet: 20:59 south
wb_twilight Astronomical TwilightWhat's Visible Now
All Constellations » Hydra » 


HR5146 is a multiple hypergiant star in the constellation of Hydra.

HR5146 visual magnitude is 6.59. Because of its reltive faintness, HR5146 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about HR5146:

HR5146 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 9°.

Celestial coordinates and finder chart of HR5146

HR5146 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR5146 are provided in the following table:

13h 41m 30s
-23° 26’ 58”

The simplified sky map below shows the position of HR5146 in the sky:

Finder chart HR5146 star
Simplified finder chart for HR5146.

Visibility of HR5146 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 HR5146 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: 113.4°
Max altitude: 15.1°
Azimuth: 246.6°
HR5146 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR5146

The image below is a photograph of HR5146 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 HR5146 is -0.009 arcsec per year in Right Ascension and 0.003 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR5146 star
DSS2 image of HR5146. The red arrow shows the motion of HR5146 during the next 100000 years (-15.00 arcmin in Right Ascension and 5.00 arcmin in declination);

Distance of HR5146 from the Sun and relative movement

HR5146 is distant 776.19 light years from the Sun and it is moving towards the Sun at the speed of 13 kilometers per second.

238.10 pc
776.19 ly
-13 km/s
-0.009 arcsec/year
0.003 arcsec/year

Spectral properties of HR5146

HR5146 belongs to spectral class A0


The red dot in the diagram below shows where HR5146 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR5146. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR5146