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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: 5:43  
clear_day Transit: 12:56  
SunsetSet: 20:10
sunny DaytimeWhat's Visible Now?
All Constellations » Vela » 


Altitude: -77.0°   Azimuth: 70.7°   Direction: East-North-East

HR3898 is a double giant star in the constellation of Vela.

HR3898 visual magnitude is 5.08. Because of its reltive faintness, HR3898 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR3898 is -0.026 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 HR3898 star
DSS2 image of HR3898. The red arrow shows the motion of HR3898 during the next 10000 years (-4.33 arcmin in Right Ascension and 0.67 arcmin in declination);

Key facts about HR3898


HR3898 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -77.0°
Azimuth: 70.7°
Direction: East-North-East

Celestial coordinates and finder chart of HR3898

HR3898 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 HR3898 are provided in the following table:

09h 49m 57s
-45° 43’ 58”

The simplified sky map below shows the position of HR3898 in the sky:

Finder chart HR3898 star
Simplified finder chart for HR3898.

Visibility of HR3898 from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

HR3898 is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of HR3898 from the Sun and relative movement

HR3898 is distant 855.64 light years from the Sun and it is moving far from the Sun at the speed of 12 kilometers per second.

262.47 pc
855.64 ly
12 km/s
-0.026 arcsec/year
0.004 arcsec/year

Spectral properties of HR3898

HR3898 belongs to spectral class B7 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR3898 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3898. Attribution: Richard Powell / CC BY-SA

HR3898 star system properties

HR3898 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR3898 double sysyem:

66.6 arcsec

Alternative designations of HR3898