HR3480

Altitude: -34.2° Azimuth: 299.0° Direction: West-North-West

HR3480 is a double giant star in the constellation of Hydra.

HR3480 visual magnitude is 6.25. Because of its reltive faintness, HR3480 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 HR3480:

Color of HR3480 ⬤

Magnitude of HR3480 6.25

Class Giant

VISIBILITY RIGHT NOW

HR3480 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -34.2°
Azimuth: 299.0°
Direction: West-North-West

Celestial coordinates and finder chart of HR3480

HR3480 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 HR3480 are provided in the following table:

Right Ascension J2000 08h 46m 06s

Declination J2000 -11° 00’ 23”

Galactic Longitude 237°

Galactic Latitude 19.39°

Constellation Hydra

The simplified sky map below shows the position of HR3480 in the sky:

Simplified finder chart for HR3480.

Visibility of HR3480 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 HR3480 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: 101.0° RISE 23:09

Max altitude: 27.5° TRANSIT 4:14

Azimuth: 259.0° SET 9:16

Digitized Sky Survey image of HR3480

The image below is a photograph of HR3480 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 HR3480 is -0.018 arcsec per year in Right Ascension and 0.027 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR3480. The red arrow shows the motion of HR3480 during the next 10000 years (-3.00 arcmin in Right Ascension and 4.50 arcmin in declination);

Distance of HR3480 from the Sun and relative movement

HR3480 is distant 3,835.29 light years from the Sun and it is moving far from the Sun at the speed of 34 kilometers per second.

Distance (parsec) 1,176.47 pc

Distance (light year) 3,835.29 ly

Heliocentric radial velocity 34 km/s

Proper Motion RA -0.018 arcsec/year

Proper Motion Dec 0.027 arcsec/year

Spectral properties of HR3480

HR3480 belongs to spectral class K5 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude -4.10

Spectral Type K5III

Color Index (B-V) 1.61

Temperature of HR3480 3635K

The red dot in the diagram below shows where HR3480 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR3480. Attribution: Richard Powell / CC BY-SA

HR3480 star system properties

HR3480 is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the HR3480 double sysyem:

Main star magnitude 6.25

Secondary star magnitude 9.75

Magnitude difference 3.5

Separation 2.3 arcsec

Alternative designations of HR3480

Henry Draper Catalogue HD74860

SAO Catalogue SAO154615

Hipparcos Catalogue HIP43035

Durchmusterung Catalogue BD-10 2634

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In Evidence

Other stars in Hydra