HR6657

Altitude: -4.7° Azimuth: 215.5° Direction: South-West

HR6657 is a main-sequence star in the constellation of Scorpius.

HR6657 visual magnitude is 6.17. Because of its reltive faintness, HR6657 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 HR6657:

Color of HR6657 ⬤

Magnitude of HR6657 6.17

Class Main-sequence

VISIBILITY RIGHT NOW

HR6657 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -4.7°
Azimuth: 215.5°
Direction: South-West

Celestial coordinates and finder chart of HR6657

HR6657 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR6657 are provided in the following table:

Right Ascension J2000 17h 53m 19s

Declination J2000 -34° 43’ 50”

Galactic Longitude 355.86°

Galactic Latitude -4.38°

Constellation Scorpius

The simplified sky map below shows the position of HR6657 in the sky:

Simplified finder chart for HR6657.

Visibility of HR6657 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 HR6657 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: 124.7° RISE 11:11

Max altitude: 3.8° TRANSIT 13:08

Azimuth: 235.3° SET 15:05

Digitized Sky Survey image of HR6657

The image below is a photograph of HR6657 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 HR6657 is 0.005 arcsec per year in Right Ascension and -0.001 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of HR6657. The red arrow shows the motion of HR6657 during the next 100000 years (8.33 arcmin in Right Ascension and -1.67 arcmin in declination);

Distance of HR6657 from the Sun and relative movement

HR6657 is distant 825.32 light years from the Sun and it is moving towards the Sun at the speed of 12 kilometers per second.

Distance (parsec) 253.16 pc

Distance (light year) 825.32 ly

Heliocentric radial velocity -12 km/s

Proper Motion RA 0.005 arcsec/year

Proper Motion Dec -0.001 arcsec/year

Spectral properties of HR6657

HR6657 belongs to spectral class B8 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude -0.85

Spectral Type B8V

Color Index (B-V) -0.03

Temperature of HR6657 10516K

The red dot in the diagram below shows where HR6657 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6657. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR6657

Henry Draper Catalogue HD162586

SAO Catalogue SAO209411

Hipparcos Catalogue HIP87567

Durchmusterung Catalogue CD-3412200

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In Evidence

Other stars in Scorpius