Your Guide to the Solar System and the Night Sky
This site is free and ad-free thanks to the support of our users. If you can, please consider a donation.
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 6:47  
clear_day Transit: 12:50  
SunsetSet: 18:52 south
sleep NighttimeWhat's Visible Now
All Constellations » Hydra » 


Altitude: -59.4°   Azimuth: 300.6°   Direction: West-North-West

HR4548 is a main-sequence star in the constellation of Hydra.

HR4548 visual magnitude is 5.85. Because of its reltive faintness, HR4548 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 HR4548:


HR4548 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -59.4°
Azimuth: 300.6°
Direction: West-North-West

Celestial coordinates and finder chart of HR4548

HR4548 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 HR4548 are provided in the following table:

11h 51m 41s
-30° 50’ 06”

The simplified sky map below shows the position of HR4548 in the sky:

Finder chart HR4548 star
Simplified finder chart for HR4548.

Visibility of HR4548 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 HR4548 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: 120.8°
Max altitude: 7.7°
Azimuth: 239.2°

Digitized Sky Survey image of HR4548

The image below is a photograph of HR4548 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 HR4548 is -0.01 arcsec per year in Right Ascension and -0.295 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR4548 star
DSS2 image of HR4548. The red arrow shows the motion of HR4548 during the next 1000 years (-0.17 arcmin in Right Ascension and -4.92 arcmin in declination);

Distance of HR4548 from the Sun and relative movement

HR4548 is distant 102.48 light years from the Sun and it is moving far from the Sun at the speed of 33 kilometers per second.

31.44 pc
102.48 ly
33 km/s
-0.01 arcsec/year
-0.295 arcsec/year

Spectral properties of HR4548

HR4548 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 HR4548 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4548. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4548