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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: 7:03  
clear_day Transit: 12:12  
SunsetSet: 17:22
sleep NighttimeWhat's Visible Now?
All Constellations » Hydra » 


Altitude: -0.2°   Azimuth: 127.3°   Direction: South-East

HR3749 is a giant star in the constellation of Hydra.

HR3749 visual magnitude is 4.69. Because of its moderate brightness, HR3749 should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The proper motion of HR3749 is 0.18 arcsec per year in Right Ascension and -0.161 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR3749 star
DSS2 image of HR3749. The red arrow shows the motion of HR3749 during the next 1000 years (3.00 arcmin in Right Ascension and -2.68 arcmin in declination);

Key facts about HR3749


HR3749 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -0.2°
Azimuth: 127.3°
Direction: South-East

Celestial coordinates and finder chart of HR3749

HR3749 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 HR3749 are provided in the following table:

09h 27m 18s
-22° 20’ 38”

The simplified sky map below shows the position of HR3749 in the sky:

Finder chart HR3749 star
Simplified finder chart for HR3749.

Visibility of HR3749 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 HR3749 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: 112.3°
Max altitude: 16.2°
Azimuth: 247.7°

Distance of HR3749 from the Sun and relative movement

HR3749 is distant 175.93 light years from the Sun and it is moving far from the Sun at the speed of 29 kilometers per second.

53.97 pc
175.93 ly
29 km/s
0.18 arcsec/year
-0.161 arcsec/year

Spectral properties of HR3749

HR3749 belongs to spectral class K2 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR3749 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR3749. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3749