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A quick sketch from the 1st September (sorry - date is wrong on the image).
M15 was still fairly low in the east but the central condensation of stars really stood out, even in a 5.5inch scope. The bright field star intruding on the edge of the image was distracting. If I had a tracking mount I'd have banished it permanently!
A lot of the extended GC was on the threshold of vision and the resolved stars faded in and out.
M15 will always have a special place for me as it was the first GC i ever saw 😍
Thanks for looking.
After many weeks of telescopes gathering dust I finally managed a long night sketching under the stars.
Having only ever sketched open clusters I wanted to attempt a GC. Hercules was well positioned so I chose to draw m92, often overshadowed by the more famous m13.
My red torch was a little too bright and there was some intermittent cloud but the sketch comes pretty close to what I saw. All comments / criticisms / comparisons most welcome!
p.s. As I was packing up around midnight I saw what I can only assume were parts of a meteorite breaking up in the sky. A long trail of five to ten separate glowing dots moved eastward through cygnus toward the horison. It was like watching several satellites following each other in an absolutely straight line. Anyone else see this or remember something similar?
I present you the second image taken with my Moravian G4-16000 camera mounted on my modified TeleVue NP101is.
Images and technical information below.
M13 globular cluster and its galactic area :
Full Resolution image 4k x 4k here : www.poigetdigitalpics.com/G4-16000/M13.htm
Full Resolution image here : http://www.poigetdigitalpics.com/Fichiers_Divers/M13new_image_Annotated.jpg
This was taken over 4 nights between the 24th September and 6th October as I have a small windows to view objects in the south due to houses and a great big tree getting in the way.
Messier 2, also known as NGC7089 is a globular cluster in the constellation of Aquarius. It is one of the largest know globular clusters and was discovered in 1746 by Giovanni Domenico Maraldi. It lies approximately 55000 ly away and is around 174 ly across.
Update: 3rd June
Re-processed to remove slight magenta tint caused by the non-uniform removal of light pollution by the DBE process ( it was being fooled by the very bright image centre ).
The globular star cluster Omega Centauri ( NGC 5139 ) in Centaurus ( please click / tap on image to see larger and sharper )
A full size image can be found here.
A newly captured ( May 2018 ) image of the great southern globular star cluster, Omega Centauri ( NGC 5139 )
Omega Centauri ( NGC 5139 ) in Centaurus - ( please click / tap image to see larger and sharper )
A full size ( ~ 6000 x 4000 ) image can be found here
This image is an attempt to look deeply into the mighty Omega Centauri star cluster and, by using HDR techniques, record as many of its faint members as possible whilst capturing and bringing out the colours of the stars, including in the core.
Resolution ........ 0.586 arcsec/px ( full size image )
Rotation .......... 0.00 deg ( up is North )
Focal ............. 1375.99 mm
Pixel size ........ 3.91 um
Field of view ..... 58' 20.9" x 38' 55.1"
Image center ...... RA: 13 26 45.065 Dec: -47 28 27.26
Telescope: Orion Optics CT12 Newtonian ( mirror 300mm, fl 1200mm, f4 ).
Corrector: ASA 2" Coma Corrector Quattro 1.175x.
Effective Focal Length / Aperture : 1470mm f4.7
Mount: Skywatcher Eq8
Guiding: TSOAG9 Off-Axis-Guider, Starlight Xpress Lodestar X2, PHD2
Nikon D5300 (unmodified) (sensor 23.5 x 15.6mm, 6016x4016 3.9um pixels)\
Blue Mountains, Australia
Moderate light pollution ( pale green zone on darksitefinder.com map )
Capture ( May 2018 )
8 sets of sub-images with exposure duration for each set doubling ( 2s to 240s ) all at ISO 250.
Calibration: master bias, master flat and master dark
Integration in 8 sets
Pixinsight May 2018