Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:43  
clear_day Transit: 12:58  
SunsetSet: 21:12 south
sunny DaytimeWhat's Visible Now
All Constellations » Hydra » 


Altitude: 4.1°   Azimuth: 112.6°   Direction: East-South-East

HR3785 is a hypergiant star in the constellation of Hydra.

HR3785 visual magnitude is 6.14. Because of its reltive faintness, HR3785 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 HR3785:


HR3785 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 4.1°
Azimuth: 112.6°
Direction: East-South-East

Celestial coordinates and finder chart of HR3785

HR3785 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 HR3785 are provided in the following table:

09h 31m 38s
-10° 33’ 07”

The simplified sky map below shows the position of HR3785 in the sky:

Finder chart HR3785 star
Simplified finder chart for HR3785.

Visibility of HR3785 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 HR3785 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: 100.6°
Max altitude: 28.0°
Azimuth: 259.4°
HR3785 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR3785

The image below is a photograph of HR3785 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 HR3785 is 0.014 arcsec per year in Right Ascension and -0.02 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3785 star
DSS2 image of HR3785. The red arrow shows the motion of HR3785 during the next 10000 years (2.33 arcmin in Right Ascension and -3.33 arcmin in declination);

Distance of HR3785 from the Sun and relative movement

HR3785 is distant 176.89 light years from the Sun and it is moving towards the Sun at the speed of 18 kilometers per second.

54.26 pc
176.89 ly
-18 km/s
0.014 arcsec/year
-0.02 arcsec/year

Spectral properties of HR3785

HR3785 belongs to spectral class F0 and has a luminosity class of V corresponding to a hypergiant star.


The red dot in the diagram below shows where HR3785 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR3785. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3785