HR6941

HR6941 is a multiple main-sequence star in the constellation of Ophiuchus.

HR6941 visual magnitude is 6.69. Because of its reltive faintness, HR6941 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 HR6941:

Color of HR6941 ⬤

Magnitude of HR6941 6.69

Class Main-sequence

VISIBILITY RIGHT NOW HR6941 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR6941

HR6941 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 HR6941 are provided in the following table:

Right Ascension J2000 18h 30m 05s

Declination J2000 +04° 03’ 55”

Galactic Longitude 34.13°

Galactic Latitude 6.6°

Constellation Ophiuchus

The simplified sky map below shows the position of HR6941 in the sky:

Simplified finder chart for HR6941.

Visibility of HR6941 from your location

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

Today's HR6941 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 85.9° RISE 0:34

Max altitude: 42.6° TRANSIT 6:56

Azimuth: 274.1° SET 13:15

RIGHT NOW HR6941 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR6941

The image below is a photograph of HR6941 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 HR6941 is 0 arcsec per year in Right Ascension and -0.009 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of HR6941. The red arrow shows the motion of HR6941 during the next 100000 years (0.00 arcmin in Right Ascension and -15.00 arcmin in declination);

Distance of HR6941 from the Sun and relative movement

HR6941 is distant 2,786.32 light years from the Sun and it is moving towards the Sun at the speed of 22 kilometers per second.

Distance (parsec) 854.70 pc

Distance (light year) 2,786.32 ly

Heliocentric radial velocity -22 km/s

Proper Motion Dec -0.009 arcsec/year

Spectral properties of HR6941

HR6941 belongs to spectral class B2 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude -2.97

Spectral Type B2V

Color Index (B-V) 0.11

Temperature of HR6941 8932K

The red dot in the diagram below shows where HR6941 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6941. Attribution: Richard Powell / CC BY-SA

HR6941 star system properties

HR6941 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR6941 double sysyem:

Main star magnitude 6.69

Secondary star magnitude 10.89

Magnitude difference 4.2

Separation 20.1 arcsec

Alternative designations of HR6941

Henry Draper Catalogue HD170580

SAO Catalogue SAO123571

Hipparcos Catalogue HIP90676

Durchmusterung Catalogue BD+03 3727

FK5 Catalogue 3469

Aitken Double Star Catalogue ADS11399

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Other stars in Ophiuchus