HR7002

Below the horizon. Rise: 21:24 | Tran: 4:11 | Set: 10:54

Alt: -3.46° Az: 71.11° Direction: East-North-East

HR7002 is a variable and double giant star of spectral class M6 in the constellation of Ophiuchus.

HR7002 visual magnitude is 6.4. Because of its faintness, HR7002 is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

DSS2 image of HR7002. The red arrow shows the motion of HR7002 during the next 10000 years (-2.33 arcmin in Right Ascension and 1.00 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 18h 39m 33s

Declination +08° 51’ 28”

Hour Angle 16h 51m 38s

Sidereal Time 11h 31m 11s

J2000

Right Ascension 18h 38m 21s

Declination +08° 50’ 02”

Galactic Coordinates

Galactic Longitude 39.35°

Galactic Latitude 6.9°

Finder Chart

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Finder chart for HR7002.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.4

Class Giant

Absolute magnitude -23.60

Spectral Type M6III

Color Index (B-V) 1.32

Temperature 4086K

The red dot in the diagram below shows where HR7002 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7002. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR7002 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR7002 double sysyem:

Main star magnitude 6.4

Secondary star magnitude 8.6

Magnitude difference 2.2

Separation 0.4 arcsec

Distance, Radial Speed, Proper Motion

HR7002 is distant 32,600,000.00 light years from the Sun and it is moving towards the Sun at the speed of 71 kilometers per second.

Distance (parsec) 10,000,000.00

Distance (light year) 32,600,000.00

Radial Speed -71 km/s

Proper Motion RA -0.014 arcsec/y

Proper Motion Dec 0.006"/y

Alternative Designations

Henry Draper Catalogue HD172171

SAO Catalogue SAO123744

Hipparcos Catalogue HIP91389

Durchmusterung Catalogue BD+08 3780

General Catalogue of Variable Stars X Oph

Aitken Double Star Catalogue ADS11524

Visibility from Your Location

Today's HR7002 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 81.1° RISE 21:24

Max altitude: 47.4° TRANSIT 4:11

Azimuth: 278.9° SET 10:54

Set Location

Other stars in Ophiuchus