HR3778

HR3778 is a main-sequence star in the constellation of Ursa Major.

HR3778 visual magnitude is 6.76. Because of its reltive faintness, HR3778 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 HR3778:

Color of HR3778 ⬤

Magnitude of HR3778 6.76

Class Main-sequence

VISIBILITY RIGHT NOW HR3778 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 80°.

Celestial coordinates and finder chart of HR3778

HR3778 is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR3778 are provided in the following table:

Right Ascension J2000 09h 33m 07s

Declination J2000 +49° 26’ 18”

Galactic Longitude 168.59°

Galactic Latitude 46.19°

Constellation Ursa Major

The simplified sky map below shows the position of HR3778 in the sky:

Simplified finder chart for HR3778.

Visibility of HR3778 from your location

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

HR3778 is circumpolar and transits at 21:09 UTC (altitude: 88.0°)

Digitized Sky Survey image of HR3778

The image below is a photograph of HR3778 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 HR3778 is -0.024 arcsec per year in Right Ascension and 0.009 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR3778. The red arrow shows the motion of HR3778 during the next 10000 years (-4.00 arcmin in Right Ascension and 1.50 arcmin in declination);

Distance of HR3778 from the Sun and relative movement

HR3778 is distant 296.90 light years from the Sun and it is moving towards the Sun at the speed of 10 kilometers per second.

Distance (parsec) 91.07 pc

Distance (light year) 296.90 ly

Heliocentric radial velocity -10 km/s

Proper Motion RA -0.024 arcsec/year

Proper Motion Dec 0.009 arcsec/year

Spectral properties of HR3778

HR3778 belongs to spectral class A4 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude 1.96

Spectral Type A4V

Color Index (B-V)

Temperature of HR3778 10125K

The red dot in the diagram below shows where HR3778 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR3778. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3778

Henry Draper Catalogue HD82380

SAO Catalogue SAO42914

Hipparcos Catalogue HIP46873

Durchmusterung Catalogue BD+50 1657

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In Evidence

Other stars in Ursa Major