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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: 7:45  
clear_day Transit: 11:48  
SunsetSet: 15:51 south
sleep NighttimeWhat's Visible Now?
All Constellations » Crater » 


Altitude: -12.7°   Azimuth: 100.4°   Direction: East

HR4284 is a giant star in the constellation of Crater.

HR4284 visual magnitude is 5.89. Because of its reltive faintness, HR4284 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 HR4284:


HR4284 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -12.7°
Azimuth: 100.4°
Direction: East

Celestial coordinates and finder chart of HR4284

HR4284 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 HR4284 are provided in the following table:

10h 59m 30s
-16° 21’ 14”

The simplified sky map below shows the position of HR4284 in the sky:

Finder chart HR4284 star
Simplified finder chart for HR4284.

Visibility of HR4284 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 HR4284 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: 106.4°
Max altitude: 22.2°
Azimuth: 253.6°

Digitized Sky Survey image of HR4284

The image below is a photograph of HR4284 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 HR4284 is -0.046 arcsec per year in Right Ascension and -0.016 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4284 star
DSS2 image of HR4284. The red arrow shows the motion of HR4284 during the next 10000 years (-7.67 arcmin in Right Ascension and -2.67 arcmin in declination);

Distance of HR4284 from the Sun and relative movement

HR4284 is distant 1,185.45 light years from the Sun and it is moving towards the Sun at the speed of 33 kilometers per second.

363.64 pc
1,185.45 ly
-33 km/s
-0.046 arcsec/year
-0.016 arcsec/year

Spectral properties of HR4284

HR4284 belongs to spectral class M2 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR4284 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4284. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4284