HR6870

Altitude: -7.7° Azimuth: 217.1° Direction: South-West

HR6870 is a variable star in the constellation of Sagittarius.

HR6870 visual magnitude is 5.34. Because of its reltive faintness, HR6870 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 HR6870:

Color of HR6870 ⬤

Magnitude of HR6870 5.34

Class

VISIBILITY RIGHT NOW

HR6870 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -7.7°
Azimuth: 217.1°
Direction: South-West

Celestial coordinates and finder chart of HR6870

HR6870 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 HR6870 are provided in the following table:

Right Ascension J2000 18h 22m 53s

Declination J2000 -36° 40’ 09”

Galactic Longitude 356.99°

Galactic Latitude -10.58°

Constellation Sagittarius

The simplified sky map below shows the position of HR6870 in the sky:

Simplified finder chart for HR6870.

Visibility of HR6870 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 HR6870 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: 126.7° RISE 17:47

Max altitude: 1.9° TRANSIT 19:09

Azimuth: 233.3° SET 20:32

Digitized Sky Survey image of HR6870

The image below is a photograph of HR6870 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 HR6870 is 0 arcsec per year in Right Ascension and -0.018 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR6870. The red arrow shows the motion of HR6870 during the next 10000 years (0.00 arcmin in Right Ascension and -3.00 arcmin in declination);

Distance of HR6870 from the Sun and relative movement

HR6870 is distant 618.60 light years from the Sun and it is moving towards the Sun at the speed of 12 kilometers per second.

Distance (parsec) 189.75 pc

Distance (light year) 618.60 ly

Heliocentric radial velocity -12 km/s

Proper Motion Dec -0.018 arcsec/year

Spectral properties of HR6870

HR6870 belongs to spectral class A

Absolute magnitude -1.05

Spectral Type A

Color Index (B-V) -0.14

Temperature of HR6870 12293K

The red dot in the diagram below shows where HR6870 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6870. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR6870

Henry Draper Catalogue HD168733

SAO Catalogue SAO210061

Hipparcos Catalogue HIP90074

Durchmusterung Catalogue CD-3612524

General Catalogue of Variable Stars V4050 Sgr

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Other stars in Sagittarius