|The NGC 5982 Group of galaxies in the constellation Draco on May 18 / 19, 2020 and on May 20 / 21, 2020. Shown are
the lenticular galaxy NGC 5976, the edge-on spiral galaxy NGC 5981, the elliptical galaxy NGC 5982 and the face-on barred spiral galaxy NGC 5985. They are 120 ± 40 million
light-years from Earth. The three galaxies NGC 5981, NGC 5982 and NGC 5985 are also known as the Draco Trio or the Draco Group, although there is no
evidence that they form a compact group. Several other galaxies can be seen in the background (see annotated version further below). NGC 5976 and
NGC 5981 were discovered in 1850 by George Stoney, NGC 5982 and NGC 5985 were discovered by William Herschel in 1788 (source: Wikipedia).
Sixty-one 3 minute exposures at ISO 800 were added for this shot with the DeepSkyStacker software (resulting in a 3 hour 15 minute exposure)
and the final image processing was done in Photoshop.
|Equipment: Canon EOS 450D Baader modified camera, TeleVue Paracorr Type II coma corrector,
16" f/4.5 "Ninja" dobsonian telescope riding on a dual-axis Tom Osypowski equatorial platform,
Lacerta MGEN autoguider, Lacerta off axis system (field of view comparison:
image of the moon with the same equipment).