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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: 7:38  
clear_day Transit: 11:46  
SunsetSet: 15:54 south
sunny DaytimeWhat's Visible Now?
All Constellations » Leo » 


Altitude: 9.1°   Azimuth: 296.5°   Direction: West-North-West

HR3804 is a giant star in the constellation of Leo.

HR3804 visual magnitude is 6.25. Because of its reltive faintness, HR3804 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 HR3804:


HR3804 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 9.1°
Azimuth: 296.5°
Direction: West-North-West

Celestial coordinates and finder chart of HR3804

HR3804 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 HR3804 are provided in the following table:

09h 33m 59s
+23° 27’ 14”

The simplified sky map below shows the position of HR3804 in the sky:

Finder chart HR3804 star
Simplified finder chart for HR3804.

Visibility of HR3804 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 HR3804 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: 66.5°
Max altitude: 62.0°
Azimuth: 293.5°

Digitized Sky Survey image of HR3804

The image below is a photograph of HR3804 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 HR3804 is -0.052 arcsec per year in Right Ascension and -0.087 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3804 star
DSS2 image of HR3804. The red arrow shows the motion of HR3804 during the next 10000 years (-8.67 arcmin in Right Ascension and -14.50 arcmin in declination);

Distance of HR3804 from the Sun and relative movement

HR3804 is distant 508.58 light years from the Sun and it is moving towards the Sun at the speed of 6 kilometers per second.

156.01 pc
508.58 ly
-6 km/s
-0.052 arcsec/year
-0.087 arcsec/year

Spectral properties of HR3804

HR3804 belongs to spectral class K7


The red dot in the diagram below shows where HR3804 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR3804. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3804