HR4050

HR4050 is a variable and multiple bright giant star in the constellation of Carina.

HR4050 visual magnitude is 3.4. Because of its moderate brightness, HR4050 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 table below summarizes the key facts about HR4050:

Color of HR4050 ⬤

Magnitude of HR4050 3.4

Class Bright giant

VISIBILITY RIGHT NOW HR4050 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR4050

HR4050 is situated south of the celestial equator, as such, it is more easily visible from the southern emisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4050 are provided in the following table:

Right Ascension J2000 10h 17m 04s

Declination J2000 -61° 19’ 55”

Galactic Longitude 285.48°

Galactic Latitude -3.8°

Constellation Carina

The simplified sky map below shows the position of HR4050 in the sky:

Simplified finder chart for HR4050.

Visibility of HR4050 from your location

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

HR4050 is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of HR4050

The image below is a photograph of HR4050 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 HR4050 is -0.024 arcsec per year in Right Ascension and 0.005 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR4050. The red arrow shows the motion of HR4050 during the next 10000 years (-4.00 arcmin in Right Ascension and 0.83 arcmin in declination);

Distance of HR4050 from the Sun and relative movement

HR4050 is distant 735.89 light years from the Sun and it is moving far from the Sun at the speed of 8 kilometers per second.

Distance (parsec) 225.73 pc

Distance (light year) 735.89 ly

Heliocentric radial velocity 8 km/s

Proper Motion RA -0.024 arcsec/year

Proper Motion Dec 0.005 arcsec/year

Spectral properties of HR4050

HR4050 belongs to spectral class K3 and has a luminosity class of II corresponding to a bright giant star.

Absolute magnitude -3.37

Spectral Type K3II

Color Index (B-V) 1.54

Temperature of HR4050 3734K

The red dot in the diagram below shows where HR4050 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4050. Attribution: Richard Powell / CC BY-SA

HR4050 star system properties

HR4050 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 HR4050 double sysyem:

Main star magnitude 3.4

Secondary star magnitude 12.6

Magnitude difference 9.2

Separation 16.4 arcsec

Alternative designations of HR4050

Henry Draper Catalogue HD89388

SAO Catalogue SAO250905

Hipparcos Catalogue HIP50371

Durchmusterung Catalogue CP-60 1817

FK5 Catalogue 1264

General Catalogue of Variable Stars V337 Car

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Other stars in Carina