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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: 7:03  
clear_day Transit: 12:12  
SunsetSet: 17:22
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All Constellations » Vela » 

HR3477

Altitude: -4.8°   Azimuth: 170.6°   Direction: South

HR3477 is a double giant star in the constellation of Vela.

HR3477 visual magnitude is 4.07. Because of its moderate brightness, HR3477 should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The proper motion of HR3477 is -0.012 arcsec per year in Right Ascension and 0.018 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3477 star
DSS2 image of HR3477. The red arrow shows the motion of HR3477 during the next 10000 years (-2.00 arcmin in Right Ascension and 3.00 arcmin in declination);

Key facts about HR3477

4.07
Giant

HR3477 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -4.8°
Azimuth: 170.6°
Direction: South

Celestial coordinates and finder chart of HR3477

HR3477 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 HR3477 are provided in the following table:

08h 44m 24s
-42° 38’ 57”
262.54°
0.05°
Vela

The simplified sky map below shows the position of HR3477 in the sky:

Finder chart HR3477 star
Simplified finder chart for HR3477.

Visibility of HR3477 from your location

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

HR3477 is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of HR3477 from the Sun and relative movement

HR3477 is distant 228.45 light years from the Sun and it is moving towards the Sun at the speed of 2 kilometers per second.

70.08 pc
228.45 ly
-2 km/s
-0.012 arcsec/year
0.018 arcsec/year

Spectral properties of HR3477

HR3477 belongs to spectral class G5 and has a luminosity class of III corresponding to a giant star.

-0.16
G5III
5078K

The red dot in the diagram below shows where HR3477 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3477. Attribution: Richard Powell / CC BY-SA

HR3477 star system properties

HR3477 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR3477 double sysyem:

4.07
11.17
7.1
45.3 arcsec

Alternative designations of HR3477

SAO220371
SAO220371
Gl 321.1