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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
sleep NighttimeWhat's Visible Now?
All Constellations » Hydra » 

48 Hydrae

Altitude: -56.5°   Azimuth: 48.1°   Direction: North-East

48 Hydrae is a main-sequence star in the constellation of Hydra.

48 Hydrae visual magnitude is 5.77. Because of its reltive faintness, 48 Hydrae 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 48 Hydrae:


48 Hydrae is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -56.5°
Azimuth: 48.1°
Direction: North-East

Celestial coordinates and finder chart of 48 Hydrae

48 Hydrae 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 48 Hydrae are provided in the following table:

14h 00m 00s
-25° 00’ 37”

The simplified sky map below shows the position of 48 Hydrae in the sky:

Finder chart 48 Hydrae star
Simplified finder chart for 48 Hydrae.

Visibility of 48 Hydrae 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 48 Hydrae 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: 115.0°
Max altitude: 13.5°
Azimuth: 245.0°

Digitized Sky Survey image of 48 Hydrae

The image below is a photograph of 48 Hydrae 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 48 Hydrae is -0.196 arcsec per year in Right Ascension and -0.091 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of 48 Hydrae star
DSS2 image of 48 Hydrae. The red arrow shows the motion of 48 Hydrae during the next 1000 years (-3.27 arcmin in Right Ascension and -1.52 arcmin in declination);

Distance of 48 Hydrae from the Sun and relative movement

48 Hydrae is distant 187.03 light years from the Sun and it is moving towards the Sun at the speed of 17 kilometers per second.

57.37 pc
187.03 ly
-17 km/s
-0.196 arcsec/year
-0.091 arcsec/year

Spectral properties of 48 Hydrae

48 Hydrae belongs to spectral class F7 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where 48 Hydrae is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 48 Hydrae. Attribution: Richard Powell / CC BY-SA

Alternative designations of 48 Hydrae