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: 4:51  
clear_day Transit: 12:56  
SunsetSet: 21:00 south
sunny DaytimeWhat's Visible Now
All Constellations » Hydra » 


HR3554 is a double giant star in the constellation of Hydra.

HR3554 visual magnitude is 5.75. Because of its reltive faintness, HR3554 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 HR3554:

HR3554 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR3554

HR3554 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 HR3554 are provided in the following table:

08h 55m 12s
-18° 14’ 29”

The simplified sky map below shows the position of HR3554 in the sky:

Finder chart HR3554 star
Simplified finder chart for HR3554.

Visibility of HR3554 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 HR3554 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: 108.2°
Max altitude: 20.3°
Azimuth: 251.8°
HR3554 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR3554

The image below is a photograph of HR3554 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 HR3554 is 0.02 arcsec per year in Right Ascension and 0.004 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3554 star
DSS2 image of HR3554. The red arrow shows the motion of HR3554 during the next 10000 years (3.33 arcmin in Right Ascension and 0.67 arcmin in declination);

Distance of HR3554 from the Sun and relative movement

HR3554 is distant 425.03 light years from the Sun and it is moving far from the Sun at the speed of 37 kilometers per second.

130.38 pc
425.03 ly
37 km/s
0.02 arcsec/year
0.004 arcsec/year

Spectral properties of HR3554

HR3554 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 HR3554 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR3554. Attribution: Richard Powell / CC BY-SA

HR3554 star system properties

HR3554 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR3554 double sysyem:

66.7 arcsec

Alternative designations of HR3554