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About Benklerk

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    Katoomba, Blue Mountains, Australia
  1. NGC 3372 ZWO ASI 071 PRO

    I’m really looking into getting this image printed out. What do you guys go with? Matt, gloss or metal?
  2. NGC 3372 ZWO ASI 071 PRO

    The Carina Nebula is a large, complex area of bright and dark nebulosity in the constellation Carina, and is located in the Carina–Sagittarius Arm. The nebula lies at an estimated distance between 6,500 and 10,000 light-years from Earth. The nebula is one of the largest diffuse nebulae in our skies. Although it is some four times as large and even brighter than the famous Orion Nebula, the Carina Nebula is much less well known due to its location in the southern sky. Eta Carinae is a highly luminous hypergiant star. Estimates of its mass range from 100 to 150 times the mass of the Sun, and its luminosity is about four million times that of the Sun. GSO 6" RC HEQ5 PRO ZWO ASI 071 PRO 3min x 32
  3. NGC 2997 ZWO ASI 071 Pro

    Yeah I know. Its a dust artifact that my flats failed to remove.
  4. NGC 2997 ZWO ASI 071 Pro

    Hi Yes the 71 Pro is cooled. I usually cool down to -15C. But in summer its around -10C if it drops below 25C at night. But this summer has been a heat wave so the nights are usually to warm.
  5. NGC 2997 ZWO ASI 071 Pro

    Its been a while. I don't usually image during summer. It gets dark to late. Here is the latest image I took in January. NGC 2997 is a face-on unbarred spiral galaxy about 25 million light-years away in the constellation Antlia. NGC 2997 is particularly notable for a nucleus surrounded by a chain of hot giant clouds of ionized hydrogen. Seen face-on, NGC 2997 looks similar to M83. GSO 6" RC HEQ5 Pro ZWO ASI 071 PRO 7 x 10min = 70min total exposure https://www.astrobin.com/users/benklerk/ https://www.facebook.com/bmastrophotography/
  6. Grus Quartet ZWO ASI 071

    First ever mosaic turned out ok. This mosaic is 2 panel. Had a few issues trying to blend the 2 panels together. I guess its easier on a monochrome camera to do mosaics? The Grus Quartet (NGC 7552, NGC 7582, NGC 7590, and NGC 7599) are four large spiral galaxies, in the constellation Grus, that are physically very close together and strongly interacting. The high starburst activity of two of the members, NGC 7552 and NGC 7582, is also thought to arise from tidal galaxy-galaxy interactions and subsequent formation of a bar in the disk. Several tidal tails are visible extending from NGC 7582. GSO 6" RC ZWO ASI 071 HEQ5 PRO 27 x 5min
  7. Helix Nebula ZWO ASI 071

    The Blue Mountains is far enough away from Sydney to get away from most of its light pollution and high enough to get good skies. But I still have to deal with local LP.
  8. NGC 7424 ZWO ASI 071

    Hi peter I use pixnsight.
  9. NGC 7424 ZWO ASI 071

    NGC 7424 is a barred spiral galaxy located 37.5 million light-years away in the southern constellation Grus. Its size about 100,000 light-years makes it similar to our own galaxy, the Milky Way. It is called a "grand design" galaxy because of its well defined spiral arms. One supernova and two ultraluminous X-ray sources have been discovered in NGC 7424. GSO 6" RC ZWO ASI 071 HEQ5 Pro 12 x 5min
  10. Helix Nebula ZWO ASI 071

    The Helix Nebula, also known as NGC 7293, is a large planetary nebula located in the constellation Aquarius. This object is one of the closest to the Earth of all the bright planetary nebulae. The estimated distance is about 700 light years and spanning 2.5 light years. The Helix Nebula is formed by an intermediate to low-mass star, which sheds its outer layers near the end of its evolution. The remnant central stellar core, known as a planetary nebula nucleus, is destined to become a white dwarf star. Currently, the age is estimated to be 10,600 years. GSO 6" RC ZWO ASI 071 HEQ5 Pro 20x 5min
  11. NGC 6744 ZWO ASI 071

    NGC 6744 is an intermediate spiral galaxy about 30 million light-years away in the constellation Pavo. It is thought to be one of the most Milky Way-like spiral galaxies in our immediate vicinity, with fluffy arms and an elongated core. It also has at least one distorted companion galaxy (NGC 6744A) superficially similar to one of the Magellanic Clouds. A supernova was discovered in the galaxy in 2005. GSO 6" RC HEQ5 Pro ZWO ASI 071 5min X 12
  12. NGC 6729 ZWO ASI 071

    NGC 6729 is a reflection/emission nebula in the constellation Corona Australis. This nebula is one of the closer star-forming regions of the galaxy at a distance of 430 light yrs. NGC 6723 is a globular cluster in the constellation Sagittarius. Its magnitude is given between 6 and 6.8, and diameter between 7 and 11 arcminutes, It is near the border of Sagittarius and Corona Australis. GSO 6" RC HEQ5 Pro ZWO ASI 071 23 x 3min
  13. Prawn Nebula ZWO ASI 071

    Prawn Nebula, IC 4628, is an emission nebula located around 6000 light-years from Earth in the constellation of Scorpius. Seeing was poor. GSO 6" RC HEQ5 Pro ZWO ASI 071 13 x 3min
  14. Messier 17 ZWO ASI 071

    The Omega Nebula, also known as the Swan Nebula, is an H II region in the constellation Sagittarius. The Omega Nebula is between 5,000 and 6,000 light-years from Earth and it spans some 15 light-years in diameter. The cloud of interstellar matter of which this nebula is a part is roughly 40 light-years in diameter. It is considered one of the brightest and most massive star-forming regions of our galaxy. Its local geometry is similar to the Orion Nebula except that it is viewed edge-on rather than face-on. The open cluster NGC 6618 lies embedded in the nebulosity and causes the gases of the nebula to shine due to radiation from these hot, young stars. GSO RC 6" HEQ5 PRO ZWO ASI 071 14 x 4min.
  15. Messier 7 ZWO ASi 071

    Messier 7 sometimes known as the Ptolemy Cluster, is an open cluster of stars in the constellation of Scorpius. The cluster is easily detectable with the naked eye, close to the "stinger" of Scorpius. M7 has been known since antiquity; it was first recorded by the 2nd-century Greek-Roman astronomer Ptolemy who described it as a nebula in 130 AD. Telescopic observations of the cluster reveal about 80 stars within a field of view of 1.3° across. At the cluster's estimated distance of 980 light years this corresponds to an actual diameter of 25 light years. The age of the cluster is around 200 million years while the brightest member star is of magnitude 5.6. In terms of composition, the cluster contains a similar abundance of elements other than hydrogen and helium as the Sun. GSO 6" RC HEQ5 PRO ZWO ASI 071 3min x 13