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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: 6:59  
clear_day Transit: 12:12  
SunsetSet: 17:25
sleep NighttimeWhat's Visible Now?
All Constellations » Hydra » 


Altitude: 0.9°   Azimuth: 252.1°   Direction: West-South-West

HR3788 is a hypergiant star in the constellation of Hydra.

HR3788 visual magnitude is 6.13. Because of its reltive faintness, HR3788 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The proper motion of HR3788 is -0.086 arcsec per year in Right Ascension and 0.01 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3788 star
DSS2 image of HR3788. The red arrow shows the motion of HR3788 during the next 10000 years (-14.33 arcmin in Right Ascension and 1.67 arcmin in declination);

Key facts about HR3788


HR3788 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 0.9°
Azimuth: 252.1°
Direction: West-South-West

Celestial coordinates and finder chart of HR3788

HR3788 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 HR3788 are provided in the following table:

09h 31m 55s
-10° 22’ 14”

The simplified sky map below shows the position of HR3788 in the sky:

Finder chart HR3788 star
Simplified finder chart for HR3788.

Visibility of HR3788 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 HR3788 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: 100.4°
Max altitude: 28.1°
Azimuth: 259.6°

Distance of HR3788 from the Sun and relative movement

HR3788 is distant 358.24 light years from the Sun and it is moving far from the Sun at the speed of 64 kilometers per second.

109.89 pc
358.24 ly
64 km/s
-0.086 arcsec/year
0.01 arcsec/year

Spectral properties of HR3788

HR3788 belongs to spectral class K0


The red dot in the diagram below shows where HR3788 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR3788. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3788