HR4225

HR4225 is a main-sequence star in the constellation of Hydra.

HR4225 visual magnitude is 5.88. Because of its reltive faintness, HR4225 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 HR4225:

Color of HR4225 ⬤

Magnitude of HR4225 5.88

Class Main-sequence

VISIBILITY RIGHT NOW HR4225 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR4225

HR4225 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 HR4225 are provided in the following table:

Right Ascension J2000 10h 48m 14s

Declination J2000 -31° 41’ 17”

Galactic Longitude 274.38°

Galactic Latitude 24.27°

Constellation Hydra

The simplified sky map below shows the position of HR4225 in the sky:

Simplified finder chart for HR4225.

Visibility of HR4225 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 HR4225 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: 121.7° RISE 16:32

Max altitude: 6.8° TRANSIT 19:08

Azimuth: 238.3° SET 21:44

RIGHT NOW HR4225 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR4225

The image below is a photograph of HR4225 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 HR4225 is -0.02 arcsec per year in Right Ascension and -0.013 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR4225. The red arrow shows the motion of HR4225 during the next 10000 years (-3.33 arcmin in Right Ascension and -2.17 arcmin in declination);

Distance of HR4225 from the Sun and relative movement

HR4225 is distant 426.14 light years from the Sun and it is moving far from the Sun at the speed of 21 kilometers per second.

Distance (parsec) 130.72 pc

Distance (light year) 426.14 ly

Heliocentric radial velocity 21 km/s

Proper Motion RA -0.02 arcsec/year

Proper Motion Dec -0.013 arcsec/year

Spectral properties of HR4225

HR4225 belongs to spectral class A1 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude 0.30

Spectral Type A1V

Color Index (B-V) 0.03

Temperature of HR4225 9766K

The red dot in the diagram below shows where HR4225 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4225. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4225

Henry Draper Catalogue HD93657

SAO Catalogue SAO201766

Hipparcos Catalogue HIP52841

Durchmusterung Catalogue CD-31 8536

In Evidence

Other stars in Hydra