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In Evidence

New Comet C/2025 J1 (Borisov) Discovered in May 2025
Detailed information about the discovery of Comet C/2025 J1 (Borisov) and pointers to useful resources to track and observe it. Read more...

Other deep sky objects in Telescopium
All Constellations »  Telescopium »  Deep Sky Objects » 

NGC 6788 - Spiral Galaxy in Telescopium

Below the horizon.  Never rises today
Alt: -16.58°   Az: 175.32°   Direction: South

NGC 6788 is a Spiral Galaxy in the Telescopium constellation. NGC 6788 is situated south of the celestial equator and, as such, it is more easily visible from the southern hemisphere. Given its B magnitude of 12.87, NGC 6788 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 6788 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 6788 - Spiral Galaxy in Telescopium star
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DSS2 image of NGC 6788 in the Red band. The green region on the image is a representation of the major (3.2 arcmin) and minor (1.05 arcmin) axes of the object's apparent size.

Celestial Coordinates

Apparent

19h 28m 52s
-54° 53’ 54”
23h 28m 42s
18h 57m 35s

J2000

19h 26m 49s
-54° 57’ 05”

Finder Chart

The simplified sky charts below show the position of NGC 6788 in the sky. The first chart has a field of view of 60° while the second one has a field of view of 10°.

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Finder chart for NGC 6788 - Spiral Galaxy in Telescopium.

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Finder chart for NGC 6788 - Spiral Galaxy in Telescopium.

Photometric Information

The following table lists the magnitude of NGC 6788 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).

12.87
9.51
8.81
8.52

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 6788.

23.48 mag/arcsec2

Apparent Size

The following table reports NGC 6788 apparent angular size. The green area displayed on top of the DSS2 image of NGC 6788 is a visual representation of it.
3.2 arcmin
1.05 arcmin
69°

Morphological Classification

NGC 6788 - Spiral Galaxy in Telescopium is classified as Spiral (SAab) according to the Hubble and de Vaucouleurs galaxy morphological classification. The diagram below shows a visual representation of the position of NGC 6788 - Spiral Galaxy in Telescopium in the Hubble de Vaucouleurs sequence.

NGC 6788 - Spiral Galaxy in Telescopium
Visualization of the morphological classification of NGC 6788 - Spiral Galaxy in Telescopium, Spiral (SAab).
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 6788 - Spiral Galaxy in Telescopium is currently not visible from Greenwich, UK