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Found 7 results

  1. Open star clusters Trumpler 14 & 16 and Collinder 232 with the Carina Nebula a very colourful backdrop Eta Carinae and star clusters Trumpler 14 & 16 and Collinder 232 ( please click / tap on image to see larger ( 1632 x 1632 ) and sharper image ) The stand out member of Trumpler 16 is the unstable hypergiant Eta Carina ( just to the left of the Keyhole Nebula ). A larger ( 3264 x 3264 ) version of this image can be found on my Flickr page. Capture and processing details can be found in this post.
  2. Carina Nebula with the bright unstable star Eta Carinae in the centre of the image. edit ( 27 March ): Tweak to shadow levels to bring out more detail and also a slight reduction in the brightness of the highlights. A much larger version ( 4562 x 3072 6062 x 4082) is available on my Flickr page. previous version: Carinae Nebula ( NGC 3372 ) ( please click / tap on image to see larger and sharper ) From Wikipedia ... "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." This HDR image is constructed from 12 sets of exposures ranging from 1/8 sec ( to capture the bright centre of Eta Carinae ) through to 240 seconds. Total exposure time around 13 hours 17-19 March 2018 Image details: Objects in image: Hypergiant, Eta Carinae ( HD 93308 ) in the centre of the Homunculus Nebula Carina Nebula ( NGC 3372 ) Keyhole Nebula Open Star Clusters: - Trumpler 14, 15, 16 - Collinder 232 Field of view ..... 59' 18.2" x 39' 56.0" Image centre ...... RA: 10 45 01.762 Dec: -59 40 52.87 Orientation: North is up 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 Camera: Nikon D5300 (unmodified) (sensor 23.5 x 15.6mm, 6016x4016 3.9um pixels) Location: Blue Mountains, Australia Moderate light pollution ( pale green zone on darksitefinder.com map ) Capture ( 17, 18 & 19 March 2018 ): 12 sets of sub-images with exposure duration for each set doubling ( 1/8s to 240s ) all at ISO250. ( 181 x 240sec + 10 to 20 each for the other durations ) Processing: Calibration: master bias, master flat and master dark Integration in 12 sets HDR combination Pixinsight March 2018
  3. Greetings, I've been involved in amateur astronomy for many years, and recently had the opportunity to purchase this starfinder scope from a gentleman who purchased it New in 1997. The scope has been unused for a ling time and was showing signs of neglect. He lost interest and just wanted to get rid of this and a meade 10" scope.so I picked them up for a pretty reasonable deal. The scope also came with the Meade magellan ll system, which had never been installed. One of the encoder gears had been broken. I have since installed the system, cleaned up the mirrors, repainted the tube inside and out, beefed up the mirror mount, and the spider and replaced the bolt that holds the secondary with a larger one, and put larger secondary adjustment screws. I also added a cooling fan to the mirror mount. The mount is solid on this beast, and has no problem carrying the weight of the optical tube. This was about the first part of july. Since then ive not been able to take it out for a try due to the monsoons here in Az. Its rained nearly every day, so needless to say i really cant wait to see what this scope can do. I named it the Monolith. I believe the name fits. Any of you buffs out there have one of these scopes? If so I'd like to hear from you.
  4. The Eagle Nebula Messier 16 ansd Open Cluster NGC 6611 in the constellation Serpens. ( click on image to see larger ) M16 is around 7,000 light years distant from Earth in the Sagittarius-Carina spiral arm of our Milkyway galaxy and may be part of a larger structure that extends to and includes the Omega Nebula ( M17 ) in Sagittarius. Details: Eagle Nebula - Messier 16 ( IC 4703 ), Open Clusters - NGC 6611 and Trumpler 32. RA ~ 18h 19'm45s Dec ~ -13deg 46' 20" Skywatcher Quattro 10" f4 Newtonian telescope. Skywatcher AZ Eq6 GT Mount.Orion 80mm f5 guide scope and auto guider - PHD2. Baader MPCC Mark 3 Coma Corrector, UHC-S 'nebula' filter. Nikon D5300 (unmodified). Field of view (deg) ~ 1.35 x 0.90. ISO800, 14bit NEF, Long Exp. NR on. 35 x 180sec (1/3 before & 2/3 after zenith) 17 July 2015. PixInsight re-processed 21 Aug 2016.. Links: https://500px.com/MikeODay http://photo.net/photos/MikeODay
  5. Last summer whilst drooling over the beautiful looking telescopes on the Sumerian website I suddenly had the urge to ask permission for a 16" Canopus and to my suprise she said yes! Well it wasnt quite that simple as we then went through the whole haggling process as to how many pairs of shoes she could get if I got the telescope. I couldnt find alot of info about the Canopus model on the net so I started talking to Michael at Sumerian via email asking for details. He came back quickly with lots of details, advice and was very helpful right from the start. After a couple nights mulling it over I payed the deposit for a 16" Canopus with black paint with f/4.5 GSO primary and a OOUK secondary, I also added a couple extras like a 12x60 TS RACI finder and Telrad. That was the easy part, the hard part was waiting for 3 months for it to be built but I guess thats part and parcel of getting a custom telescope though. It was without a doubt the longest 3 months of my life! Fast forward to November 2nd and 3 months after the deposit was paid two very large boxes arrived from the Netherlands Putting it together was very simple, although full instructions were included I didnt really need them apart from when it came to the mirror cell....'where's the mirror cell??' A quick email to Michael and all was explained, as its a ultra compact dob it doesnt use an all metal mirror cell like I'd seen in Skywatchers/Meade's and OOUK's, Sumerian have there own design which I'm guessing saves on weight and bulk, a very nice touch. First light and the optics As its a custom scope you decide exactly what you want from the start and although the Mrs was happy in her mountain of shoes I thought it was pushing it a little too far to ask for a 1/10Pv Huygens primary so I settled on a standard GSO f/4.5 primary. So first light in VLM 6.4 skies and straight away I could see a problem as the views appeared very dim, you have no idea how disappointed I was! After some emails explaining the problem to Michael it was decided that the primary was very rough, it was returned to TS and a replacement was sent by Sumerian. I have to say that this was a stressful time for me but customer service from Sumerian was spot on and I cant fault them. Maybe the scope should of had been tested under the stars before it was shipped but in all fairness to them I was getting pretty impatient and just wanted the damn scope. So I've had the scope working since the start of December and the views it has given so far have blown me away, no need to really look for spiral arms in galaxies like I had to in my old 12", even though its only 4" gain in aperture it really has been worth the expense. Theres some sketches in my blog which may give a rough idea how objects appear in my EP. The build quality is very good, all bolted together the mirror box/rocker box is very solid and there is a very small amount of vibration through the truss poles when in use, this is still far less than my old Skywatcher though. I was a little worried that the black paint would chip or show any little knocks but even with my accident prone hands its still like new after a couple months. The Alt/Azi bearings are sooooooo smooth when in use, 10/10 here. It has three small primary cooling fans on the rear of the mirror box, I've had these running and used mags of x300 and cant see any vibration. It has a secondary heater powered by 3 AA batteries which lasts for around 24 hrs. The shroud you see in one of the pictures below was bought separately from Heathers Shrouds in the US. Total weight is 33kg which is 9kg lighter than my old 12" Skywatcher and its also smaller in size when broken down to transport and can fit in the boot of my Astra. Price? See the Sumerian website. I honestly can say that I cant think of anything I'm unhappy with, yep if I had more money at the time a primary a little faster and from one of the better mirror makers would make it better but thats something I may look into more in the future. This is a scope that I plan on having for many years to come and I can completely recommend the Canopus to anyone.
  6. Hi all not very good at gramma so stick with me ,Well I got the 16" reflector nearly a month ago and tonight was the first real night after the group meet the other night we spotted the primary with the , Catseye Hotspot & 4"-32" Centring Template (thanks FLO ) and set the secondary and job done . This dob sits at just over 6' 9" tall ,man handling it is a dream with the fear of god in me I took it all down the garden around 17:00 and checked colamination . I got out around 20:00 after a bit of family time and it being clear as a bell M42 This was a dream I first had a look with a 32mm plossl and it was just about all in very clear and the detail was unreal even a hint of greyish green and that's no joke theta 1s all 4 easily seen and sharp the nebula it's self was very nice the arms as I call them left and right were like a pair of wings ,the hook on the right of the neb was very prominent I switched to the 18mm celestron x cell lx the detail just got better and this ep gave me more detail and structure in the nebula NGC1980 This was great to view easily seen and just south of the main neb am sure I see a fuzzy patch of neb around this all star bright and sharp. M35 This again 25mm celestron e lux plossl and 25mm celestron x cel lx gave me a mind boggling view of this cluster I love it one of my faves I could see orange blue -ish ,white ,orange stars,very rich and deep diamonds do not describe this it was like seeing it for the first time again spent around ten mins looking at this , Orion's Belt Just panning around with the 25mm was great very rich in stars in the field of view M1 Very easy to find 25mm again a nice fuzzy shape very clearly a stretched oval shape and not much else to say M94 The Rigel finder made this usually faint fuzzy easy tonight no structure as it was low and around 21:30 by this time a small round fuzzy did not tale power well 25mm was the best view M82 Bodes This was the best I have ever seen and there was structure this time 18mm xcell lx the cigar shape had me screaming nearly the left side had a faint star in it ,I convinced my self it was the sn but new it could not be .faint detail in the centre and almost lines cutting through the whole of it M81 also,looked like a swirl a centre fuzzy with what looked like faint swirls just around it outstanding again I saw lots more stuff as well but do not want to drone on as you have seen them all before I had a few niggles,about dew ?,none at all ,not a bit at all .which was a relief as I have no idea how I would get rid of it. Home made shroud worked a treat made out of two camping matts and flocked at the bottom I brought two meters of spandex which a neighbours got busy with her sewing machine and made it a double piece with Velcro I may upgrade the whole scope with this .the campo,BG matts did not effect balance. The Rigel finder took a bit of getting used to and finding the right angle was hit and miss to start with but soon got the hang of it .its small and compact size is just right. Over all I am truly blessed to have purchased this scope and many of my fears of it's size and big mirror are gone I hope it stays clear every night as it's got so more to give . Has I said excuse my gramma and thanks for reading Pat
  7. Just received these photos of my new Sumerian Canopus this afternoon so its all finished and ready to be shipped to the UK on Monday!! So I'm just a tad excited about this.......I may of mentioned it once or twice recently in different threads and the Mrs has been giving me the thousand yard stare every time I have mentioned 'new telescope' but I just cant wait to get this into some dark skies!! 16" Sumerian Canopus f/4.5 1820mm
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