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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
sleep NighttimeWhat's Visible Now?
All Constellations » Hydra » 


Altitude: 14.6°   Azimuth: 150.8°   Direction: South-South-East

HR3584 is a main-sequence star in the constellation of Hydra.

HR3584 visual magnitude is 6.18. Because of its reltive faintness, HR3584 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 HR3584:


HR3584 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 14.6°
Azimuth: 150.8°
Direction: South-South-East

Celestial coordinates and finder chart of HR3584

HR3584 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 HR3584 are provided in the following table:

08h 59m 39s
-19° 12’ 29”

The simplified sky map below shows the position of HR3584 in the sky:

Finder chart HR3584 star
Simplified finder chart for HR3584.

Visibility of HR3584 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 HR3584 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: 109.2°
Max altitude: 19.3°
Azimuth: 250.8°

Digitized Sky Survey image of HR3584

The image below is a photograph of HR3584 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 HR3584 is -0.051 arcsec per year in Right Ascension and -0.098 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR3584 star
DSS2 image of HR3584. The red arrow shows the motion of HR3584 during the next 1000 years (-0.85 arcmin in Right Ascension and -1.63 arcmin in declination);

Distance of HR3584 from the Sun and relative movement

HR3584 is distant 128.96 light years from the Sun and it is moving far from the Sun at the speed of 20 kilometers per second.

39.56 pc
128.96 ly
20 km/s
-0.051 arcsec/year
-0.098 arcsec/year

Spectral properties of HR3584

HR3584 belongs to spectral class F6 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR3584 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR3584. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3584