χ2 Hydrae (chi2 Hydrae)

Altitude: -42.4° Azimuth: 278.6° Direction: West

χ2 Hydrae is a variable hypergiant star in the constellation of Hydra.

χ2 Hydrae visual magnitude is 5.71. Because of its reltive faintness, χ2 Hydrae 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 χ2 Hydrae:

Color of χ2 Hydrae ⬤

Magnitude of χ2 Hydrae 5.71

Class Hypergiant

VISIBILITY RIGHT NOW

χ2 Hydrae (chi2 Hydrae) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -42.4°
Azimuth: 278.6°
Direction: West

Celestial coordinates and finder chart of χ2 Hydrae

χ2 Hydrae 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 χ2 Hydrae are provided in the following table:

Right Ascension J2000 11h 05m 57s

Declination J2000 -27° 17’ 16”

Galactic Longitude 275.82°

Galactic Latitude 29.97°

Constellation Hydra

The simplified sky map below shows the position of χ2 Hydrae in the sky:

Finder chart χ2 Hydrae (chi2 Hydrae) star

Simplified finder chart for χ2 Hydrae (chi2 Hydrae).

Visibility of χ2 Hydrae from your location

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

Today's χ2 Hydrae (chi2 Hydrae) rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 117.3° RISE 3:01

Max altitude: 11.2° TRANSIT 6:18

Azimuth: 242.7° SET 9:35

Digitized Sky Survey image of χ2 Hydrae

The image below is a photograph of χ2 Hydrae 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 χ2 Hydrae is 0.034 arcsec per year in Right Ascension and -0.014 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of χ2 Hydrae. The red arrow shows the motion of χ2 Hydrae during the next 10000 years (5.67 arcmin in Right Ascension and -2.33 arcmin in declination);

Distance of χ2 Hydrae from the Sun and relative movement

χ2 Hydrae is distant 799.02 light years from the Sun and it is moving far from the Sun at the speed of 30 kilometers per second.

Distance (parsec) 245.10 pc

Distance (light year) 799.02 ly

Heliocentric radial velocity 30 km/s

Proper Motion RA 0.034 arcsec/year

Proper Motion Dec -0.014 arcsec/year

Spectral properties of χ2 Hydrae

χ2 Hydrae belongs to spectral class A0 and has a luminosity class of IV corresponding to a hypergiant star.

Absolute magnitude -1.24

Spectral Type A0IV

Color Index (B-V) -0.06

Temperature of χ2 Hydrae 10941K

The red dot in the diagram below shows where χ2 Hydrae is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of χ2 Hydrae. Attribution: Richard Powell / CC BY-SA

Alternative designations of χ2 Hydrae

Bayer designation χ2 Hydrae
(chi2 Hydrae)

Henry Draper Catalogue HD96314

SAO Catalogue SAO179522

Hipparcos Catalogue HIP54255

Durchmusterung Catalogue CD-26 8342

General Catalogue of Variable Stars Chi2 Hya

Support us

In Evidence

Other stars in Hydra