HR3478

Altitude: -39.1° Azimuth: 18.6° Direction: North-North-East

HR3478 is a giant star in the constellation of Hydra.

HR3478 visual magnitude is 5.7. Because of its reltive faintness, HR3478 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 HR3478:

Color of HR3478 ⬤

Magnitude of HR3478 5.7

Class Giant

VISIBILITY RIGHT NOW

HR3478 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -39.1°
Azimuth: 18.6°
Direction: North-North-East

Celestial coordinates and finder chart of HR3478

HR3478 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR3478 are provided in the following table:

Right Ascension J2000 08h 46m 02s

Declination J2000 -02° 02’ 56”

Galactic Longitude 228.86°

Galactic Latitude 24.21°

Constellation Hydra

The simplified sky map below shows the position of HR3478 in the sky:

Simplified finder chart for HR3478.

Visibility of HR3478 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 HR3478 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: 92.0° RISE 21:35

Max altitude: 36.5° TRANSIT 3:27

Azimuth: 268.0° SET 9:15

Digitized Sky Survey image of HR3478

The image below is a photograph of HR3478 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 HR3478 is 0.043 arcsec per year in Right Ascension and 0.042 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR3478. The red arrow shows the motion of HR3478 during the next 10000 years (7.17 arcmin in Right Ascension and 7.00 arcmin in declination);

Distance of HR3478 from the Sun and relative movement

HR3478 is distant 278.39 light years from the Sun and it is moving far from the Sun at the speed of 10 kilometers per second.

Distance (parsec) 85.40 pc

Distance (light year) 278.39 ly

Heliocentric radial velocity 10 km/s

Proper Motion RA 0.043 arcsec/year

Proper Motion Dec 0.042 arcsec/year

Spectral properties of HR3478

HR3478 belongs to spectral class K0

Absolute magnitude 1.04

Spectral Type K0

Color Index (B-V) 1.1

Temperature of HR3478 4515K

The red dot in the diagram below shows where HR3478 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR3478. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3478

Henry Draper Catalogue HD74794

SAO Catalogue SAO136254

Hipparcos Catalogue HIP43026

Durchmusterung Catalogue BD-01 2125

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In Evidence

Other stars in Hydra