Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 6:46  
clear_day Transit: 12:51  
SunsetSet: 18:55 south
wb_twilight Astronomical TwilightWhat's Visible Now
All Constellations » Sagittarius » 


Altitude: -43.7°   Azimuth: 277.5°   Direction: West

HR7538 is a main-sequence star in the constellation of Sagittarius.

HR7538 visual magnitude is 6.05. Because of its reltive faintness, HR7538 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 HR7538:


HR7538 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -43.7°
Azimuth: 277.5°
Direction: West

Celestial coordinates and finder chart of HR7538

HR7538 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 HR7538 are provided in the following table:

19h 49m 11s
-28° 47’ 20”

The simplified sky map below shows the position of HR7538 in the sky:

Finder chart HR7538 star
Simplified finder chart for HR7538.

Visibility of HR7538 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 HR7538 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: 118.8°
Max altitude: 9.7°
Azimuth: 241.2°

Digitized Sky Survey image of HR7538

The image below is a photograph of HR7538 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 HR7538 is 0.126 arcsec per year in Right Ascension and -0.096 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR7538 star
DSS2 image of HR7538. The red arrow shows the motion of HR7538 during the next 1000 years (2.10 arcmin in Right Ascension and -1.60 arcmin in declination);

Distance of HR7538 from the Sun and relative movement

HR7538 is distant 148.52 light years from the Sun and it is moving towards the Sun at the speed of 34 kilometers per second.

45.56 pc
148.52 ly
-34 km/s
0.126 arcsec/year
-0.096 arcsec/year

Spectral properties of HR7538

HR7538 belongs to spectral class F2 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR7538 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7538. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7538