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public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 5:11 
Transit: 13:06 
Sunset: 21:00
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All Constellations »  Hercules »  Deep Sky Objects » 

NGC 6155 - Barred Spiral Galaxy in Hercules

Above the horizon.  Circumpolar today
Alt: 9.89°   Az: 356.49°   Direction: North

NGC 6155 is a Barred Spiral Galaxy in the Hercules constellation. NGC 6155 is situated north of the celestial equator and, as such, it is more easily visible from the northern hemisphere. Given its B magnitude of 13.2, NGC 6155 is visible with the help of a telescope having an aperture of 10 inches (250mm) or more.

The image below is a photograph of NGC 6155 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 0.5000x0.5000 degrees (30.00x30.00 arcmins).

Image of NGC 6155 - Barred Spiral Galaxy in Hercules star
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DSS2 image of NGC 6155 in the Red band. The green region on the image is a representation of the major (1.33 arcmin) and minor (0.85 arcmin) axes of the object's apparent size.

Celestial Coordinates

Apparent

16h 26m 49s
+48° 18’ 45”
11h 39m 10s
04h 05m 59s

J2000

16h 26m 08s
+48° 22’ 00”

Finder Chart

The simplified sky charts below show the position of NGC 6155 in the sky. The first chart has a field of view of 60° while the second one has a field of view of 10°.

Finder chart NGC 6155 - Barred Spiral Galaxy in Hercules star
Simplified finder chart for NGC 6155 - Barred Spiral Galaxy in Hercules.

Finder chart NGC 6155 - Barred Spiral Galaxy in Hercules star
Simplified finder chart for NGC 6155 - Barred Spiral Galaxy in Hercules.

Photometric Information

The following table lists the magnitude of NGC 6155 in different bands of the electomagnetic spectrum (when available), from the B band (445nm wavelength, corresponding to the Blue color), to the V band ( 551nm wavelength, corresponding to Green/Yellow color), to the J, H, K bands (corresponding to 1220nm, 1630nm, 2190nm wavelengths respectively, which are colors not visible to the human eye).

13.2
10.76
10.2
9.97

For more information about photometry in astronomy, check the photometric system article on Wikipedia.

The surface brightess reported below is an indication of the brightness per unit of angular area of NGC 6155.

22.32 mag/arcsec2

Apparent Size

The following table reports NGC 6155 apparent angular size. The green area displayed on top of the DSS2 image of NGC 6155 is a visual representation of it.
1.33 arcmin
0.85 arcmin
147°

Morphological Classification

NGC 6155 - Barred Spiral Galaxy in Hercules is classified as Barred Spiral (Bbc) according to the Hubble and de Vaucouleurs galaxy morphological classification. The diagram below shows a visual representation of the position of NGC 6155 - Barred Spiral Galaxy in Hercules in the Hubble de Vaucouleurs sequence.

NGC 6155 - Barred Spiral Galaxy in Hercules
Visualization of the morphological classification of NGC 6155 - Barred Spiral Galaxy in Hercules, Barred Spiral (Bbc).
Credits for the background image: Antonio Ciccolella / M. De Leo / CC BY

Rise and Set Times

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

NGC 6155 - Barred Spiral Galaxy in Hercules is circumpolar and transits at 20:22 UTC (altitude: 86.8°)