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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
SunriseRise: 6:46  
clear_day Transit: 12:11  
SunsetSet: 17:36
sunny DaytimeWhat's Visible Now?
All Constellations » Hydra » 

Felis - HR3923

Altitude: -31.4°   Azimuth: 81.2°   Direction: East

Felis, also designated as , is a giant star in the constellation of Hydra.

Felis visual magnitude is 4.94. Because of its moderate brightness, Felis should be easily visible from locations with dark skies, while it can be barely visible, or not visible at all, from skies affected by light pollution.

The proper motion of Felis is -0.047 arcsec per year in Right Ascension and -0.037 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of Felis - HR3923 star
DSS2 image of Felis. The red arrow shows the motion of Felis during the next 10000 years (-7.83 arcmin in Right Ascension and -6.17 arcmin in declination);

Key facts about Felis


Felis - HR3923 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -31.4°
Azimuth: 81.2°
Direction: East

Celestial coordinates and finder chart of Felis

Felis 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 Felis are provided in the following table:

09h 54m 52s
-19° 00’ 33”

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

Finder chart Felis - HR3923 star
Simplified finder chart for Felis - HR3923.

Visibility of Felis 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 Felis - HR3923 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: 109.0°
Max altitude: 19.5°
Azimuth: 251.0°

Distance of Felis from the Sun and relative movement

Felis is distant 705.63 light years from the Sun and it is moving far from the Sun at the speed of 50 kilometers per second.

216.45 pc
705.63 ly
50 km/s
-0.047 arcsec/year
-0.037 arcsec/year

Spectral properties of Felis

Felis belongs to spectral class M1 and has a luminosity class of III corresponding to a giant star.


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

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

Alternative designations of Felis