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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: 7:43  
clear_day Transit: 11:47  
SunsetSet: 15:52 south
sleep NighttimeWhat's Visible Now?
All Constellations » Hydra » 


Altitude: -5.2°   Azimuth: 141.4°   Direction: South-East

HR4282 is a variable and double main-sequence star in the constellation of Hydra.

HR4282 visual magnitude is 5.71. Because of its reltive faintness, HR4282 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 HR4282:


HR4282 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -5.2°
Azimuth: 141.4°
Direction: South-East

Celestial coordinates and finder chart of HR4282

HR4282 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4282 are provided in the following table:

10h 59m 13s
-33° 44’ 13”

The simplified sky map below shows the position of HR4282 in the sky:

Finder chart HR4282 star
Simplified finder chart for HR4282.

Visibility of HR4282 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 HR4282 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: 123.7°
Max altitude: 4.8°
Azimuth: 236.3°

Digitized Sky Survey image of HR4282

The image below is a photograph of HR4282 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 HR4282 is 0.016 arcsec per year in Right Ascension and -0.043 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4282 star
DSS2 image of HR4282. The red arrow shows the motion of HR4282 during the next 10000 years (2.67 arcmin in Right Ascension and -7.17 arcmin in declination);

Distance of HR4282 from the Sun and relative movement

HR4282 is distant 158.56 light years from the Sun and it is moving towards the Sun at the speed of 10 kilometers per second.

48.64 pc
158.56 ly
-10 km/s
0.016 arcsec/year
-0.043 arcsec/year

Spectral properties of HR4282

HR4282 belongs to spectral class F2 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR4282 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4282. Attribution: Richard Powell / CC BY-SA

HR4282 star system properties

HR4282 is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the HR4282 double sysyem:

1.8 arcsec

Alternative designations of HR4282