New Equipment: NGC 3718, NGC 3729 y M27 with the QHY-9 Mono

Your attention please!, some of the photos in this web page were used to foll some of the members of the Astronomical Society of Granada. If you want to read the fake story about the images you can do it in Más con Menos.

Some months ago we bought some new astronomical gadgets, but due to bad weather ad a fire in our observation place make it impossible to try it until last week. Among other equipment, we now have a monochrome Lunático QHY-9 CCD camera. It main characteristics are the following:

  • CCD Sensor: KAF8300 (black & white)
  • Total Pixels: 3448x2574 (8.9mega pixel)
  • Effective Pixels: 3358x2536 (8.6mega pixel)
  • Pixel Size: 5.4μmx5.4μm

Finally we have been able to test it with "the bidon" telescope, the EQ6 Pro mount and the solución de autoguiado de Lunático for guiding purposes. Moreover, we have used a UHC Astronomik filter. The location were the shots were taken was a suburban environment (Armilla, near Granada) with quite bad seeing conditions and a fairly high amount of light pollution. In fact we have some problems with some parasite light and thus, in the next astrophotography session we will use some mechanism to avoid it.

To obtain our first light we have tried some not very well known galaxies: the NGC 3718 and NGC 3729 in the Ursa Major constellation:

NGC 3718 y NGC 3729

The galaxies are around 52 million light years from us and they probably interacting with each other (thats might be the reason of the elongated shape of the first galaxy). We hav especially enjoyed capturing some quite small galaxies under NGC 3718 and the NGC 3729 galaxy itself:


It is clear that to get better details of the inner part of the galaxies it is necessary to get many more exposure hours but we think this is a first good attempt.

In addition, this same night when the galaxies were too close to the horizon we decided to try to get some exposures of the famous planetary nebula M27:



In all these images we have applied darks but no flats (we still don't know how to take them properly). Another aspect to improve is the coma of the stars (we think it appears due to some collimation problems in the telescope).