HR4169

Altitude: -20.6° Azimuth: 173.8° Direction: South

HR4169 is a variable hypergiant star in the constellation of Carina.

HR4169 visual magnitude is 5.45. Because of its reltive faintness, HR4169 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 HR4169:

Color of HR4169 ⬤

Magnitude of HR4169 5.45

Class Hypergiant

VISIBILITY RIGHT NOW

HR4169 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -20.6°
Azimuth: 173.8°
Direction: South

Celestial coordinates and finder chart of HR4169

HR4169 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 HR4169 are provided in the following table:

Right Ascension J2000 10h 37m 26s

Declination J2000 -58° 43’ 59”

Galactic Longitude 286.29°

Galactic Latitude -0.26°

Constellation Carina

The simplified sky map below shows the position of HR4169 in the sky:

Simplified finder chart for HR4169.

Visibility of HR4169 from your location

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

HR4169 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR4169

The image below is a photograph of HR4169 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 HR4169 is -0.033 arcsec per year in Right Ascension and 0.002 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR4169. The red arrow shows the motion of HR4169 during the next 10000 years (-5.50 arcmin in Right Ascension and 0.33 arcmin in declination);

Distance of HR4169 from the Sun and relative movement

HR4169 is distant 8,150.00 light years from the Sun and it is moving towards the Sun at the speed of 9 kilometers per second.

Distance (parsec) 2,500.00 pc

Distance (light year) 8,150.00 ly

Heliocentric radial velocity -9 km/s

Proper Motion RA -0.033 arcsec/year

Proper Motion Dec 0.002 arcsec/year

Spectral properties of HR4169

HR4169 belongs to spectral class A0 and has a luminosity class of I corresponding to a hypergiant star.

Absolute magnitude -6.54

Spectral Type A0I

Color Index (B-V) 0.5

Temperature of HR4169 6389K

The red dot in the diagram below shows where HR4169 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4169. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4169

Henry Draper Catalogue HD92207

SAO Catalogue SAO238271

Hipparcos Catalogue HIP52004

Durchmusterung Catalogue CP-58 2411

General Catalogue of Variable Stars V370 Car

In Evidence

Other stars in Carina