HR7401

Altitude: 44.9° Azimuth: 312.1° Direction: North-West

HR7401 is a sub-giant star in the constellation of Draco.

HR7401 visual magnitude is 6.6. Because of its reltive faintness, HR7401 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 HR7401:

Color of HR7401 ⬤

Magnitude of HR7401 6.6

Class Sub-giant

VISIBILITY RIGHT NOW

HR7401 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 44.9°
Azimuth: 312.1°
Direction: North-West

Celestial coordinates and finder chart of HR7401

HR7401 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 HR7401 are provided in the following table:

Right Ascension J2000 19h 25m 46s

Declination J2000 +58° 01’ 37”

Galactic Longitude 89.43°

Galactic Latitude 18.45°

Constellation Draco

The simplified sky map below shows the position of HR7401 in the sky:

Simplified finder chart for HR7401.

Visibility of HR7401 from your location

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

HR7401 is circumpolar and transits at 14:48 UTC (altitude: 83.5°)

Digitized Sky Survey image of HR7401

The image below is a photograph of HR7401 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 HR7401 is -0.004 arcsec per year in Right Ascension and 0.008 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of HR7401. The red arrow shows the motion of HR7401 during the next 100000 years (-6.67 arcmin in Right Ascension and 13.33 arcmin in declination);

Distance of HR7401 from the Sun and relative movement

HR7401 is distant 1,253.85 light years from the Sun and it is moving towards the Sun at the speed of 22 kilometers per second.

Distance (parsec) 384.62 pc

Distance (light year) 1,253.85 ly

Heliocentric radial velocity -22 km/s

Proper Motion RA -0.004 arcsec/year

Proper Motion Dec 0.008 arcsec/year

Spectral properties of HR7401

HR7401 belongs to spectral class B8 and has a luminosity class of IV corresponding to a sub-giant star.

Absolute magnitude -1.33

Spectral Type B8IV

Color Index (B-V) -0.15

Temperature of HR7401 12489K

The red dot in the diagram below shows where HR7401 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7401. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7401

Henry Draper Catalogue HD183339

SAO Catalogue SAO31652

Hipparcos Catalogue HIP95520

Durchmusterung Catalogue BD+57 1999

FK5 Catalogue 1507

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In Evidence

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