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Update 16th June:
I could not wait to tell people that I was just notified that my image of Omega Centauri will be published as a future NASA's Astronomy Picture of the Day ( APOD ) - my first ever
I will update the thread when they publish.
A deep look at Omega Centauri ( NGC 5139 )
This image is an attempt to look deeply into the the Omega Centauri globular cluster by using HDR techniques to record as many faint stars as I can whilst retaining colour and detail in the bright stars, including at the core ...
Reprocessed to bring out more faint stars and to produce a smother transition between brightness levels.
New version ( 12 June 2017 ):
Omega Centauri ( NGC 5129 )
( please click / tap on image to see lager and sharper )
Omega Centauri ( NGC 5129 )
( please click / tap on image to see full size and sharper )
Size: 58.6 x 39 arcmins,
Centre: 13h 26 min 50.4 sec, -47deg 28' 39.1''.
Orientation: up is -89.9 East of North ( ie. E^ N> ).
Orion Optics CT12 Newtonian ( mirror 300mm, fl 1200mm, f4 ).
Corrector: ASA 2" Coma Corrector Quattro 1.175x.
Effective Focal Length / Aperture : 1410mm f4.7.
Skywatcher AZ Eq6 GT.
TSOAG9 Off-Axis-Guider, Starlight Xpress Lodestar X2, PHD2 .
Nikon D5300 (unmodified) (sensor 23.5 x 15.6mm, 6016x4016 3.9um pixels).
Long Exposure noise reduction off
Blue Mountains, Australia.
Moderate light pollution ( pale green zone on darksitefinder.com map ).
9 sets of sub-images with exposure duration for each set doubling ( 1s to 240s ) all at ISO800.
Calibration: master bias, master flat and no darks.
Integration in 9 sets.
** I am away from the 16/06/17 - 30/06/17, if anyone would like the mount please send me a DM and i will get back to you ASAP however there may be a delay due to being on holiday **
So I am looking at getting myself the EQ3 Pro GoTo so I will no longer need my current EQ3-2 Mount (Manual). The condition of the mount is pretty much perfect, has been used no more than 5/6 times since October and as a result cosmetically and mechanically all is very well. I no longer have the box as it was massive and had nowhere to keep it! The only reason for selling is for the GoTo functionality on the Pro version of the mount.
I am looking to get £100 for collection or £100 plus postage if posting is required due to distance, will consider a meet depending on distance. Open to fair offers also.
Please PM me for more information or offers!
I have now opened this up to buyers on eBay and AstroBuySell
While imaging with my Skywatcher 130 PDS I have discovered that I have some tilt in the focuser. I can see this while trying to collimate, I seem to get a shift when I change the focus.
I believe that I can correct this by taking apart the focuser. Does anyone have any experience with taking apart the focuser? and how to correct the tilt?
Thank you for your time and feedback.
PS I hope I posted this in the right place.