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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
SunriseRise: 5:51  
clear_day Transit: 12:57  
SunsetSet: 20:04
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All Constellations » Boötes » 

Merga - 38 Boötis

Altitude: 24.9°   Azimuth: 46.1°   Direction: North-East

Merga, also designated as 38 Boötis , is a sub-giant star in the constellation of Boötes.

Merga visual magnitude is 5.74. Because of its reltive faintness, Merga should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of Merga is -0.002 arcsec per year in Right Ascension and -0.076 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of Merga - 38 Boötis star
DSS2 image of Merga. The red arrow shows the motion of Merga during the next 10000 years (-0.33 arcmin in Right Ascension and -12.67 arcmin in declination);

Key facts about Merga


Merga - 38 Boötis is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 24.9°
Azimuth: 46.1°
Direction: North-East

Celestial coordinates and finder chart of Merga

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

14h 49m 18s
+46° 06’ 57”

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

Finder chart Merga - 38 Boötis star
Simplified finder chart for Merga - 38 Boötis.

Visibility of Merga from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Merga - 38 Boötis is circumpolar and transits at 00:50 UTC (altitude: 84.6°)

Distance of Merga from the Sun and relative movement

Merga is distant 152.76 light years from the Sun and it is moving towards the Sun at the speed of 5 kilometers per second.

46.86 pc
152.76 ly
-5 km/s
-0.002 arcsec/year
-0.076 arcsec/year

Spectral properties of Merga

Merga belongs to spectral class F7 and has a luminosity class of IV corresponding to a sub-giant star.


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

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

Alternative designations of Merga