Follow the LEDA

This luminescent image features multiple galaxies, perhaps most noticeably LEDA 58109, the lone galaxy in the upper right. LEDA 58109 is flanked by two further galactic objects to its lower left — an active galactic nucleus (AGN) called SDSS J162558.14+435746.4 that partially obscures the galaxy SDSS J162557.25+435743.5, which appears to poke out to the right behind the AGN. 

Galaxy classification is sometimes presented as something of a dichotomy: spiral and elliptical. However, the diversity of galaxies in this image alone highlights the complex web of galaxy classifications that exist, including galaxies that house extremely luminous AGNs at their cores, and galaxies whose shapes defy the classification of either spiral or elliptical. 

The sample of galaxies here also illustrates the wide variety of names that galaxies have: some relatively short, like LEDA 58109, and some very long and challenging to remember, such as the two galaxies to the left. This is due to the variety of cataloguing systems that chart the celestial objects in the night sky. No one catalogue is exhaustive, and they cover overlapping regions of the sky, so that many galaxies belong to several different catalogues. For example, the galaxy on the right is LEDA 58109 in the LEDA galaxy database, but is also known as MCG+07-34-030 in the MCG galaxy catalogue, and SDSS J162551.50+435747.5 in the SDSS galaxy catalogue — the same catalogue that also lists the two galaxies to the left.

Links

Credit:

ESA/Hubble & NASA, W. Keel

About the Image

Id:potw2230a
Type:Observation
Release date:25 July 2022, 06:00
Size:2925 x 2862 px

About the Object

Constellation:Hercules

Image Formats

Large JPEG
1.4 MB
Screensize JPEG
171.4 KB

Zoomable


Wallpapers

1024x768
139.2 KB
1280x1024
226.1 KB
1600x1200
342.6 KB
1920x1200
431.4 KB
2048x1536
574.1 KB

Coordinates

Position (RA):16 25 54.27
Position (Dec):43° 57' 41.39"
Field of view:2.44 x 2.39 arcminutes
Orientation:North is 34.2° left of vertical


Colours & filters

BandWavelengthTelescope
Optical
u
354 nmSDSS
Optical
G
474 nmVíctor M. Blanco 4-meter Telescope
DECam
Optical
G
477 nmSDSS
Optical
R
623 nmSDSS
Optical
R
644 nmVíctor M. Blanco 4-meter Telescope
DECam
Optical
I
762 nmSDSS
Optical
Z
913 nmSDSS
Optical
Z
919 nmVíctor M. Blanco 4-meter Telescope
DECam
Optical
V
606 nm Hubble Space Telescope
ACS

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