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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
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All Constellations » Vela » 

HR4038

Altitude: -82.0°   Azimuth: 239.3°   Direction: West-South-West

HR4038 is a variable sub-giant star in the constellation of Vela.

HR4038 visual magnitude is 6.16. Because of its reltive faintness, HR4038 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 HR4038 is -0.015 arcsec per year in Right Ascension and 0 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4038 star
DSS2 image of HR4038. The red arrow shows the motion of HR4038 during the next 10000 years (-2.50 arcmin in Right Ascension and 0.00 arcmin in declination);

Key facts about HR4038

6.16
Sub-giant

HR4038 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -82.0°
Azimuth: 239.3°
Direction: West-South-West

Celestial coordinates and finder chart of HR4038

HR4038 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 HR4038 are provided in the following table:

10h 15m 16s
-54° 58’ 27”
281.73°
1.34°
Vela

The simplified sky map below shows the position of HR4038 in the sky:

Finder chart HR4038 star
Simplified finder chart for HR4038.

Visibility of HR4038 from your location

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

HR4038 is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of HR4038 from the Sun and relative movement

HR4038 is distant 1,423.58 light years from the Sun and it is moving far from the Sun at the speed of 8 kilometers per second.

436.68 pc
1,423.58 ly
8 km/s
-0.015 arcsec/year

Spectral properties of HR4038

HR4038 belongs to spectral class B2 and has a luminosity class of IV corresponding to a sub-giant star.

-2.04
B2IV
12902K

The red dot in the diagram below shows where HR4038 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR4038. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4038

SAO237834
SAO237834