HR4177

HR4177 is a variable and double giant star in the constellation of Carina.

HR4177 visual magnitude is 4.66. Because of its moderate brightness, HR4177 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 HR4177:

Color of HR4177 ⬤

Magnitude of HR4177 4.66

Class Giant

VISIBILITY RIGHT NOW HR4177 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR4177

HR4177 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 HR4177 are provided in the following table:

Right Ascension J2000 10h 38m 45s

Declination J2000 -59° 10’ 59”

Galactic Longitude 286.65°

Galactic Latitude -0.57°

Constellation Carina

The simplified sky map below shows the position of HR4177 in the sky:

Simplified finder chart for HR4177.

Visibility of HR4177 from your location

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

HR4177 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR4177

The image below is a photograph of HR4177 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 HR4177 is -0.012 arcsec per year in Right Ascension and 0.001 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR4177. The red arrow shows the motion of HR4177 during the next 10000 years (-2.00 arcmin in Right Ascension and 0.17 arcmin in declination);

Distance of HR4177 from the Sun and relative movement

HR4177 is distant 1,852.27 light years from the Sun and it is moving far from the Sun at the speed of 11 kilometers per second.

Distance (parsec) 568.18 pc

Distance (light year) 1,852.27 ly

Heliocentric radial velocity 11 km/s

Proper Motion RA -0.012 arcsec/year

Proper Motion Dec 0.001 arcsec/year

Spectral properties of HR4177

HR4177 belongs to spectral class K4 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude -4.11

Spectral Type K4III

Color Index (B-V) 1.48

Temperature of HR4177 3824K

The red dot in the diagram below shows where HR4177 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4177. Attribution: Richard Powell / CC BY-SA

HR4177 star system properties

HR4177 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR4177 double sysyem:

Main star magnitude 4.66

Secondary star magnitude 8.06

Magnitude difference 3.4

Separation 14.6 arcsec

Alternative designations of HR4177

Henry Draper Catalogue HD92397

SAO Catalogue SAO238295

Hipparcos Catalogue HIP52102

Durchmusterung Catalogue CP-58 2460

General Catalogue of Variable Stars 4922

In Evidence

Other stars in Carina