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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:47  
clear_day Transit: 11:49  
SunsetSet: 15:50 south
sunny DaytimeWhat's Visible Now?
All Constellations » Ophiuchus » 


Altitude: 42.3°   Azimuth: 183.7°   Direction: South

HR6633 is a main-sequence star in the constellation of Ophiuchus.

HR6633 visual magnitude is 6.22. Because of its reltive faintness, HR6633 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 HR6633:


HR6633 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 42.3°
Azimuth: 183.7°
Direction: South

Celestial coordinates and finder chart of HR6633

HR6633 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 HR6633 are provided in the following table:

17h 48m 20s
+03° 48’ 15”

The simplified sky map below shows the position of HR6633 in the sky:

Finder chart HR6633 star
Simplified finder chart for HR6633.

Visibility of HR6633 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 HR6633 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: 86.2°
Max altitude: 42.3°
Azimuth: 273.8°

Digitized Sky Survey image of HR6633

The image below is a photograph of HR6633 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 HR6633 is 0.007 arcsec per year in Right Ascension and 0.004 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR6633 star
DSS2 image of HR6633. The red arrow shows the motion of HR6633 during the next 100000 years (11.67 arcmin in Right Ascension and 6.67 arcmin in declination);

Distance of HR6633 from the Sun and relative movement

HR6633 is distant 2,469.70 light years from the Sun and it is moving towards the Sun at the speed of 44 kilometers per second.

757.58 pc
2,469.70 ly
-44 km/s
0.007 arcsec/year
0.004 arcsec/year

Spectral properties of HR6633

HR6633 belongs to spectral class B9 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR6633 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR6633. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR6633