ngc 2683 the UFO galaxy (Wim van Berlo)

Celestial hemisphere: Northern · Constellation: Lynx (Lyn) · Contains: NGC 2683

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ngc 2683 the UFO galaxy

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ngc 2683 the UFO galaxy

Ngc 2683 is a type SAb galaxy in the constellation Lynx (RA: 8h 52m, DEC: 33 deg 25 min). It is at a distance of about 25 - 30 Mly from the Milky Way, and has an apparent magnitude of 10.6. Its diameter is approximately 87000 lightyears, making it smaller than our own Milky Way. From earth, its size is 9.3' x 2.2'. It is uncertain wether this galaxy has a central bar.

We see the galaxy almost edge on (78 degrees inclination), and the dust lanes give the center of the galaxy it's yellowish colour. Ngc 2683 contains a large number of globular clusters.

I posted this image on the Swedish astroforum, and got some interesting feedback regarding the objects near PGC3452022 in the upper right corner.

It turns out that this is in fact a galaxy cluster that extends beyond the fuzzy area indicated by the ellipse. The cluster name is ZwCl 0848.5+3341 and it has a redshift of 0.38 (NED says 0.37), which puts it at a distance of a whopping 5600 Mly, if I do the calculations right. The galaxies are also giants; the one indicated by the number "8" has a magnitude of 20.8 and a size of 450 000 ly. In comparison, our own Milky Way is "only" 100 000 ly in diameter, and ngc 2683 a mere 78 000 ly. Cool stuff!! I haven't checked these facts (magnitude and size), so I rely on the feedback I got.

Btw, the cluster may extend to the small galaxies indicated by 1 and 5, between the main cluster and ngc 2683. But when I enter their data in Vizier/NED, I get much smaller redshifts. These galaxies should be much nearer.

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Description: Inverted and annotated version of the image, showing a dwarf galaxy in the lower left, and a very distant galaxy cluster in the upper right.

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"Nordish by nature"
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