HR4102

HR4102 is a variable sub-giant star in the constellation of Carina.

HR4102 visual magnitude is 4. Because of its moderate brightness, HR4102 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 HR4102:

Color of HR4102 ⬤

Magnitude of HR4102 4

Class Sub-giant

VISIBILITY RIGHT NOW HR4102 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR4102

HR4102 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 HR4102 are provided in the following table:

Right Ascension J2000 10h 24m 23s

Declination J2000 -74° 01’ 54”

Galactic Longitude 293.16°

Galactic Latitude -14.02°

Constellation Carina

The simplified sky map below shows the position of HR4102 in the sky:

Simplified finder chart for HR4102.

Visibility of HR4102 from your location

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

HR4102 is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of HR4102

The image below is a photograph of HR4102 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 HR4102 is -0.021 arcsec per year in Right Ascension and -0.026 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR4102. The red arrow shows the motion of HR4102 during the next 10000 years (-3.50 arcmin in Right Ascension and -4.33 arcmin in declination);

Distance of HR4102 from the Sun and relative movement

HR4102 is distant 52.86 light years from the Sun and it is moving towards the Sun at the speed of 4 kilometers per second.

Distance (parsec) 16.22 pc

Distance (light year) 52.86 ly

Heliocentric radial velocity -4 km/s

Proper Motion RA -0.021 arcsec/year

Proper Motion Dec -0.026 arcsec/year

Spectral properties of HR4102

HR4102 belongs to spectral class F2 and has a luminosity class of IV corresponding to a sub-giant star.

Absolute magnitude 2.95

Spectral Type F2IV

Color Index (B-V) 0.35

Temperature of HR4102 7158K

The red dot in the diagram below shows where HR4102 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4102. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4102

Henry Draper Catalogue HD90589

SAO Catalogue SAO256710

Hipparcos Catalogue HIP50954

Durchmusterung Catalogue CP-73 733

Gliese Catalogue Gl 391

FK5 Catalogue 391

General Catalogue of Variable Stars 4856

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Other stars in Carina