HR3758

Altitude: 7.3° Azimuth: 258.7° Direction: West-South-West

HR3758 is a double hypergiant star in the constellation of Hydra.

HR3758 visual magnitude is 6.27. Because of its reltive faintness, HR3758 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 HR3758:

Color of HR3758 ⬤

Magnitude of HR3758 6.27

Class Hypergiant

VISIBILITY RIGHT NOW

HR3758 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 7.3°
Azimuth: 258.7°
Direction: West-South-West

Celestial coordinates and finder chart of HR3758

HR3758 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 HR3758 are provided in the following table:

Right Ascension J2000 09h 29m 02s

Declination J2000 -01° 15’ 24”

Galactic Longitude 234.73°

Galactic Latitude 33.7°

Constellation Hydra

The simplified sky map below shows the position of HR3758 in the sky:

Simplified finder chart for HR3758.

Visibility of HR3758 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 HR3758 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: 91.3° RISE 22:14

Max altitude: 37.3° TRANSIT 4:10

Azimuth: 268.7° SET 10:02

Digitized Sky Survey image of HR3758

The image below is a photograph of HR3758 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 HR3758 is -0.073 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 HR3758. The red arrow shows the motion of HR3758 during the next 10000 years (-12.17 arcmin in Right Ascension and 0.17 arcmin in declination);

Distance of HR3758 from the Sun and relative movement

HR3758 is distant 297.45 light years from the Sun

Distance (parsec) 91.24 pc

Distance (light year) 297.45 ly

Proper Motion RA -0.073 arcsec/year

Proper Motion Dec 0.001 arcsec/year

Spectral properties of HR3758

HR3758 belongs to spectral class F0 and has a luminosity class of V corresponding to a hypergiant star.

Absolute magnitude 1.47

Spectral Type F0V

Color Index (B-V) 0.27

Temperature of HR3758 7658K

The red dot in the diagram below shows where HR3758 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR3758. Attribution: Richard Powell / CC BY-SA

HR3758 star system properties

HR3758 is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the HR3758 double sysyem:

Main star magnitude 6.27

Secondary star magnitude 11.27

Magnitude difference 5

Separation 1.3 arcsec

Alternative designations of HR3758

Henry Draper Catalogue HD81980

SAO Catalogue SAO136894

Hipparcos Catalogue HIP46504

Durchmusterung Catalogue BD-00 2201

Aitken Double Star Catalogue ADS7396

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In Evidence

Other stars in Hydra