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NGC 2340 is the brightest member of a rather nice small cluster of galaxies in Lynx. Most members are either E or S0 with bright condensed nuclei. The cluster appears not to be very well known, which is rather a shame in my opinion. It contains IC 458, 459, 460, 461, 463, 464 and 465 --- the latter also known as NGC 2334. --- as well as a number of fainter members. This image was taken 10 minutes before Xmas Day in 2019 with a 810s unfiltered exposure on a 0.4m Dilworth-Relay.
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From the album: Clusters
Ahh, the Double Cluster... I cropped the image down so the clusters would be right in the middle of the image. Just as beautiful as it is when viewed in the telescope where the stars brighten up the eyepiece and you get countless amount of stars in a nursery brighter and hotter than our sun I took this at ISO 400, an Exposure time of 20 seconds (Could have done 15 seconds to prevent trailing), lastly an aperture of F/3.5. This was taken Friday the 27th October 2017, facing North-West at around 19:18. P.S: I know this isn't exactly the Double Cluster people were expecting, but it's the wide field shot, until I can get a better mount and something to move the telescope without disturbing it, it will be wide field shots. But it shouldn't be too long until i get a device for it -
From the album: Slynxx Learning Curve
Double Cluster in Perseus- 1 comment
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From the album: Deep Sky
Taken in September 2015 with SW ED 80 and Trius SX26C. I was interested to see how a deep sky object would image during the glow of the "supermoon", so I picked a relatively bright object - the ET or Owl cluster (NGC 457). LIGHTS: 28 x 300s, BIAS: 50, DARKS: 30, FLATS: 40. Post processing in MAXIM DL and Photoshop CC. The stars outside the cluster were reduced by the PS plugin StarShrink. -
messier 8 The Lagoon Nebula ( Messier 8, NGC 6523 ) in Sagittarius
MikeODay posted a gallery image in Member's Album
From the album: Mike's Images
The Lagoon Nebula ( Messier 8, NGC 6523 ) in the constellation Sagittarius - by Mike O'Day ( https://500px.com/mikeoday ) The Laboon Nebula ( M8 ) is visible to the naked eye under dark skies from most latitudes except the far north. Seemingly covering an area about three times that of the full Moon, M8 actually covers an area somewhat greater than 110 light years and is around 4300 light years from Earth in the Sagittarius-Carina spiral arm of the Milkyway galaxy. Links: https://500px.com/MikeODay http://photo.net/photos/MikeODay Details: Messier 8, NGC 6523 - Lagoon Nebula. also contains: NGC 6526 NGC 6530 NGC 6533 IC 1271 IC 4678 7SGR 9SGR Skywatcher Quattro 10" f4 Newtonian telescope. Skywatcher AZ Eq6 GT Mount. Orion auto guider - PHD2. Baader MPCC Mark 3 Coma Corrector, UHC-S 'nebula' filter. Nikon D300 (unmodified) (14bit NEF). Field of view (deg) ~ 1.35 x 0.90. 20 x 120 sec ISO400. 26 x 30 sec ISO 1600. 23 x 240 sec ISO 200. PixInsight and Photoshop. 2 August 14 . re-processed 24 April 2016 to include the additional subs ( the first version only made use of the 23 x 240 sec ISO 200 subs ) and putting use the processing lessons I have learnt over the past year.© Copyright Mike O'Day 2016 - all rights reserved
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From the album: Images
Open clusters M35 and NGC2158 in Gemini imaged on the 8th Feb. ST2000XM, FLT110 and Losmandy Titan. LRGB = 20m:9m:9m:9m (1min subs)© Graeme Coates
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From the album: Mike's Images
30 sec subs @ ISO 800 Guided Sykywatcher Quattro 10" f4 Newtonian Baader MPCC Mk3 Coma Corrector Skywatcher AZ EQ 6 GT Mount Orion auto guider on 80mm f5 guide scope Nikon D300 unmodified© Copyright Mike O'Day 2014 - all rights reserved
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From the album: Venture in widefield.
Pleiades - a few 1-2min exp stacked. Nikon d3100 w/nikkor zoom lens© Aenima
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Shimmering like a pearl to the naked eye, this open cluster of mostly young blue stars ( known as the "Pearl Cluster" ) is approximately 5500 light years from Earth and was discovered by Abbe Lacaille in 1752 from South Africa. A Cluster of Pearls in the Southern Skies ( NGC 3766 " The Pearl Cluster" ) ( please click / tap on image to see larger and sharper - a full size image can be found here ) This HDR image is constructed from 11 sets of exposures ranging from 1/4 sec ( to capture the centre of the brighter stars ) through to 240 seconds ( for the fainter stars of the Milky Way ). Total exposure time was around 5 hours. ..... Image details can be found here
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( please click / tap to see larger ) Identification: The Rosette Nebula ( NGC 2237 ) is a large, circular emission nebula in the constellation Monoceros. It surrounds a cluster of hot, young stars known as the Rosette Cluster ( NGC 2244 ). ( SkySafari ) NGC 2237, 2244 Caldwell 49, 50 North is up. .................. Capture Details: Telescope: Orion Optics CT12 Newtonian ( mirror 300mm, fl 1200mm, f4 ). Corrector: ASA 2" Coma Corrector Quattro 1.175x. Effective Focal Length / Aperture : 1400mm f4.7 Mount: Skywatcher EQ8 Guiding: TSOAG9 Off-Axis-Guider, Starlight Xpress Lodestar X2, PHD2 Camera: Nikon D7500 (unmodified) (sensor 23.5 x 15.7mm, 5568x3712 @ 4.196um pixels) Location: Blue Mountains, Australia Moderate light pollution ( pale green zone on darksitefinder.com map ) Capture ( 23 Dec 2017 ) 9 sets of sub-images with exposure duration for each set doubling ( 1s to 240s ) all at ISO400. 10 x 240s + 5 each @ 1s to 120s imaged ~ +/- 1.5hrs either side of meridian maximum altitude ~ 51.3 deg above north horizon Processing ( Pixinsight ) Calibration: master bias, master flat and in-camera dark subtraction Integration in 9 sets HDR combination Image Plate Solution =================================== Resolution ........ 0.633 arcsec/px ( full size image ) Rotation .......... 0.181 deg Focal ............. 1367.90 mm Pixel size ........ 4.20 um Field of view ..... 58' 59.4" x 39' 15.0" Image center ...... RA: 06 31 55.638 Dec: +04 56 30.84 =================================== ... More information, etc., here:
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The Jewel Box ( NGC 4755 ) is an open cluster of mostly hot young blue-white stars that appears to the unaided eye as a bright 4th magnitude star close to the Southern Cross. Only visible from southern latitudes, the Jewel Box was first recorded by Nicolas Louis de Lacaille during his visit to South Africa in 1751 and was later described by Sir John Herschel as "a casket of variously coloured precious stones" - hence the name "Jewel Box". The Jewel Box open star cluster ( ngc 4755 ) in Curx ( please click / tap on image to see larger and sharper ) Please see here for image details.
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edit: Processed in January from data captured in June and it has been pointed out to me that, as per the rules, this image can not be considered for the competition. .............. The Fighting Dragons of Ara ( NGC 6188 ) ( please click / tap on image to see larger ) Image details: This is an HDR image constructed from exposures ranging from 2 seconds to 240 seconds in length. The aim was to capture the faint stars and details in the nebula whilst at the same time maintaining colour in the bright stars without clipping the highlights. Plate Solution: Resolution ........ 1.336 arcsec/px Rotation .......... 90.002 deg ( North is to the right ) Focal ............. 1475.57 mm Pixel size ........ 9.56 um Field of view ..... 58' 28.5" x 39' 0.8" Image center ...... RA: 16 40 09.903 Dec: -48 41 27.00 Telescope: Orion Optics CT12 Newtonian ( mirror 300mm, fl 1200mm, f4 ). Corrector: ASA 2" Coma Corrector Quattro 1.175x. Effective Focal Length / Aperture : 1410mm f4.7. Mount: Skywatcher AZ Eq6 GT. 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 ( 24 June 2017 ). 8 sets of sub-images with exposure duration for each set doubling ( 2s to 240s ) all at ISO800. 34 x 240s + 10 each @ 2s to 120s. Processing ( Pixinsight - 19 Aug 2017, 13 Jan 2018 ). Calibration: master bias, master flat and no darks. Integration in 8 sets. HDR combination
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Also known as the Theta Carinae Cluster, The Southen Pleiades is a very bright open cluster in the Carina constellation. It was discovered by Abbe Lacaille during his visit to South Africa in 1752. Containing around 60 stars, IC 2602 shines with an overall magnitude of 1.9 and its brightest member is Theta Carinae with a visual magnitude of 2.7. This cluster of young blue stars is relatively close to us at "only" 479 light years. 5 May 2018 The Southern Pleiades open star cluster ( IC 2602 ) in Carina ( please click / tap on image to see larger and sharper ) Image details can be found here.
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Hey all, I was hanging with the in-laws out on the Olympic Peninsula in Washington state last night and managed to stumble onto this cluster. I was just using a $100 4" reflector, no tracking, no guiding, no eq mount, just a camera tripod (quite the challenge!), which is the reason I'm not sure what I captured here. Definitely in the Sagittarius region though, which is another reason I'm not sure (so many DSOs there!). My best guess is that it's M71. Can anyone confirm or tell me what it is? Thanks! - Josh P.S. It's just a single 5 second exposure with a Nikon D3100.
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Globular clusters, whenever I point my scope towards 95% of them they come out as a hazy patch. The only two globulars I can see kind of clearly are the Hercules cluster and Messier 3 in Canes Venetici. All the rest look fuzzy, What aperture would you need to see them clearly? I have a 4.5" reflector. Thanks Adam
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I finally got out for another night of viewing. My last night out was almost 2 weeks ago, and was plagued by technical difficulties, resulting in a rather disappointing night compared to expectations. Since then work prevented me from getting out, then just as I had an opportunity with clear skies I threw my back out and was laid up for 2 days. By the time I was on my feet again, the clouds had rolled in and I was left being a computer astronomer for several more days. Last night the skies cleared so I loaded up the truck and headed to my dark site, roughly 5 minutes from my house. Seeing conditions were excellent with clear, cold skies and dark site conditions. I was able to see a magnitude 6.0 star with my naked eye, and Andromeda was clearly visible without optics. I brought with me several new EPs and a new UHC filter. I also brought with my my girlfriend, complete with a sleeping bag to bundle her in so we could try to spot some meteors between messing around with the telescope and camera. We were set up and looking skyward by 20:15. I had only peered through my new EPs twice before, and they hadn't had a night to do them justice, so I decided to start with some old familiar objects to give me some reference. I looked at M13 and M31, then turned the scope up to M57. I was using my Explore Scientific 18mm 82* EP with a new 2" dielectric diagonal. This was an upgrade from the standard Celestron equipment that comes stock with the scope. To say the views were amazing would be an understatement. I was blown away. M13 especially stands out in my mind as a real surprise last night. It totally filled the EP, and the stars so numerous it dazzled me and boggled my mind all at once. M31 really stood out as well, totally filling the eyepiece. Truly amazing. Once I was content that the scope was cool and I had everything focused and tuned, I began searching the sky for a few new galaxies including M81 and M82. I had hoped to spy M101 for my first time, but it was a touch low on the horizon to make out well. I turned the scope to M33 instead and was treated to an incredible sight. It stood out strong in the dark sky, and I looked long and hard and could swear that I could just barely make out some spiral arms. Now it was time for the next test. I screwed the UHC filter onto the EP and went searching for nebulas, both familiar and new to me. I'll put a list below of object I saw, but some highlights were as follow: The Dumbbell Nebula was quite a site. I could clearly make out the shape (looks more like an apple core to me ). I then swung around to the Little Dumbbell, my first time viewing it. I was surprised how little it was, but could make it out very clearly. The Lagoon Nebula was nice, as was Omega Nebula. However, in the south sky the Eagle Nebula really stole my attention last night. I could make out a lot of nebulosity, and was pulled in and hypnotized by it. I had trouble leaving that object. I went on to view some diffuse nebulas that I had never seen, and had great luck finding them. There were a few misses, but I think I found 75% or so of all the new objects I looked for. It was a wonderful night. Before taking a break I decided to take a look up toward Uranus, and it appeared as a beautiful little light blue disk, the first time I had seen it as such. Neptune was more of just a tiny speck of light, but I found it as well. After a break for hot cocoa I switched the EP over to a 30MM 82* and jumped around the sky looking at familiar objects. I had intended to seek some new clusters and perhaps some double stars, but ended up getting totally caught up in just surfing around enjoying the views of what I knew. I looked at the Pleiades for a long time, as well as the Hyades. I spend quite a bit of time viewing Capella, Rigel, and Betelgeuse, and really enjoyed taking the time to make out the slight differences in magnitude and color. I then swung the scope over to Cygnus and just surfed around through the billions of stars making the highway through the sky that the swan looks to be following. It is still hard for me to believe the sheer number of stars out there. I grew up under dark skies and am no stranger to the Milky Way and being able to see millions of stars with the naked eye. However, when you turn that scope upward, you realize there are exponentially more all around, and it's humbling. We are so small, and what we are taking in is so vast. It seems impossible. I ended the night viewing the Great Orion Nebula. I didn't even bother putting the filter on, and through the 30MM EP it was absolutely stunning. I had never seen it quite like that, and I spend a very long time taking it in, my jaw on the ground. It was a really beautiful end to the evening. While I had been messing about with the scope, my girlfriend had a camera set up on a tripod, and managed to capture some wonderful Milky Way and Constellation pictures. When we finally put away all the toys, we both just laid back on the tarp and spend about 45 minutes watching for the Orionids. By the end of the night we saw a combined total of between 20 and 30 meteors, most of which were relatively dim. It was a nice bonus. In the end we were viewing for over 4 hours, and had an incredible successful night! List of object observed (items with asterisk were first lights for me!): Nebulas: M1*; M8; M16; M17; M27; M42; M43; M57; M76*; NGC1491*; NGC6543*; NGC6781*; NGC6804*; NGC7008* Galaxies and Clusters: M13; M31; M32; M81*; M82*; M110; Plants: Uranus; Neptune
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The Rosette Nebula and Cluster ( NGC 2237 and 2244 ) in the constellation Monoceros edit: updated 30th Dec with improved colour balance and slightly increased brightness ... ...... original: ( please click / tap on image to see larger and sharper ) Still a work-in-progress really... with only 10 x 4min exposures for the main 'lights' before the clouds came over. I will try to add some more data when the moon has gone I am still experimenting with how to get the best out of the D7500. With the very warm nights ( low to mid 20s all night ) the 'warm pixels' are very noticeable so I reverted to my old practice of in-camera dark subtraction. This worked quite well and produced a nice smooth noise floor in the integrated images - albeit at the expense of more exposures. ................. Identification: The Rosette Nebula ( NGC 2237 ) is a large, circular emission nebula in the constellation Monoceros. It surrounds a cluster of hot, young stars known as the Rosette Cluster ( NGC 2244 ). ( SkySafari ) NGC 2237, 2244 Caldwell 49, 50 North is up. .................. Capture Details: Telescope: Orion Optics CT12 Newtonian ( mirror 300mm, fl 1200mm, f4 ). Corrector: ASA 2" Coma Corrector Quattro 1.175x. Effective Focal Length / Aperture : 1400mm f4.7 Mount: Skywatcher EQ8 Guiding: TSOAG9 Off-Axis-Guider, Starlight Xpress Lodestar X2, PHD2 Camera: Nikon D7500 (unmodified) (sensor 23.5 x 15.7mm, 5568x3712 @ 4.196um pixels) Location: Blue Mountains, Australia Moderate light pollution ( pale green zone on darksitefinder.com map ) Capture ( 23 Dec 2017 ) 9 sets of sub-images with exposure duration for each set doubling ( 1s to 240s ) all at ISO400. 10 x 240s + 5 each @ 1s to 120s imaged ~ +/- 1.5hrs either side of meridian maximum altitude ~ 51.3 deg above north horizon Processing ( Pixinsight ) Calibration: master bias, master flat and in-camera dark subtraction Integration in 9 sets HDR combination Image Plate Solution =================================== Resolution ........ 0.633 arcsec/px ( full size image ) Rotation .......... 0.181 deg Focal ............. 1367.90 mm Pixel size ........ 4.20 um Field of view ..... 58' 59.4" x 39' 15.0" Image center ...... RA: 06 31 55.638 Dec: +04 56 30.84 ===================================
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galaxy 2MASX J05314916-6721339 - Galaxy in Dorado ( LMC )
MikeODay posted a topic in Imaging - Deep Sky
Galaxy 2MASX J05314916-6721339 in Dorado in the region of the Large Magellanic Cloud ( LMC ) and not far ( in angular terms ) from NGC 2004 and NGC 2011. From Simbad: 2MASX J05314916-6721339 "Galaxy in a group of galaxies" - Type: Sa D ( Spiral ) ( J2000: 5h 31m 49.16s -67d 21' 33.92" ) ( http://simbad.u-strasbg.fr/simbad/sim-id?Ident=%403123415&Name=2MASX J05314916-6721339&submit=submit ) ( other id: IRAS Faint Source Catalog - IRAS F05319-6723 ) It can be found in the vicinity of NGC 2004 and NGC 2011 -------------- Crops taken from full frame image: Dragons Head Nebula and NGC 2014 in the Large Magellanic Cloud ( LMC ) ( not far from the Tarantula Nebula - NGC 2070 ) - NGC 2004 - NGC 2011 - NGC 2014 - NGC 2020 - NGC 2021 - NGC 2030 - NGC 2032 - NGC 2035 - NGC 2040 -
The Wishing Well Cluster ( NGC 3532 ) in the constellation Carina ( click on image to see full size / best resolution ) This large bright open cluster, when seen through a small telescope, looks like a collection of brightly gleaming silver coins shimmering at the bottom of a wishing well and hence the name. First recorded in 1752 by Nicolas Lacaille, NGC 3532 contains around 120 stars superimposed on the expanse of the Milkyway and is visible with the naked eye from lower latitudes. Links: https://500px.com/MikeODay http://photo.net/photos/MikeODay Details: Co-ordinates: ~ RA 11h 6.4m, Dec -58 deg 50.5' Skywatcher Quattro 10" f4 Newtonian Skywatcher AZ Eq6 GT Mount Orion Short Tube 80mm guide scope & auto guider - PHD2 Baader MPCC Mark 3 Coma Corrector Hutech IDAS D1 Light Pollution Filter Nikon D5300 (unmodified) Field of view (deg) ~ 1.35 x 0.90 36 subs ranging from 30 sec 300 sec ISO 200 Pixinsight & Photoshop 10th April 2016
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Re-processed to bring out more stars and tweak the colours again ... NGC 104 ( also known as 47 Tucanae ) alongside the far more distant NGC 121 in the constellation Tucana by Mike O'Day ( https://500px.com/MikeODay ) NGC 104 - 47 Tucanae, is the second largest Globular Cluster in the sky ( after Omega Centauri ). Only visible from lower latitudes, it was not recorded by European observers until Nicholas de Lacaille did so whilst visiting South Africa in 1751. Containing millions of stars and appearing about the size of the full moon, 47 Tucanae is in fact approximately 214 light years in diameter and around 15,000 light years from Earth. The smaller cluster, NGC 121, appears as a companion to 47 Tucanae but is in fact of similar size, more than ten times farther away at around 200,000 light years and belongs to one of the Milkyway's dwarf galaxies, the Small Magellanic Cloud . Links: https://500px.com/MikeODay http://photo.net/photos/MikeODay Details: NGC 104 - RA 00h 24.1m, Dec -72 deg 5'. NGC 121 - RA 00h 268.1m, Dec -71 deg 31'. Skywatcher Quattro 10" f4 Newtonian. Skywatcher Quattro 10" f4 Newtonian Skywatcher AZ Eq6 GT Mount Guiding: Orion Shortube 80 guidescope, Starshoot Autoguider, PHD2 Baader MPCC Mark 3 Coma Corrector Nikon D5300 (unmodified). Field of view (deg) ~ 1.35 x 0.90 Combination of 66 images ranging from 25 to 200 sec @ ISO400 16 Oct 2015 Pixinsight Previous version in post ...
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Astrophotography Scrapbook Vol. 1 Cover Page Lagoon Nebula in Sagittarius ( Messier 8, NGC 6523 ) The Fighting Dragons of Ara ( NGC 6188 ) War and Peace in Scorpius ( NGC 6357 ) Spiral Galaxy NGC 6744 in Pavo Ptolemy's Cluster in Scorpius ( Messier 7, NGC 6475 ) A Million Stars in the Deep South ( NGC 104, 47 Tucanae ) A Wishing Well in Carina ( NGC 3532 ) A Beehive in the Southern Sky ( NGC 2516 ) The Sliver Coin in Sculptor ( NGC 253 ) The Great Nebula in Orion ( Messier 42, NGC 1976 ) A Cluster of Pearls in Centaurus ( NGC 3766 ) - new 5 Dec resources: Scrapbook Template ------------------------------------- When I show my astrophotography images to my friends and family they invariably want to know what they are looking at. This led me to wonder if there was a way I could display my images on a single page together with a few notes on the target object as well as few technical details of the capture for those who might be interested. What I came up with a "scrapbook" like page that combines all of these three elements in a single PDF sheet ( or jpeg image) that ultimately I might combine together to form a PDF book that I can share online or send to friends and family. In the meantime, I thought I might post in this thread each page of my work-in-progress towards volume 1 of my Astrophotography Scrapbook. Any and all comments, observations, suggestions and constructive criticisms will be warmly received. Cheers Mike ps. The pages have been sized to fit full screen on an IPAD
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The Southern Beehive Cluster ( NGC 2516 ) in the constellation Carina - by Mike O'Day ( 500px.com/MikeODay ). Because of its similarity to the “The Beehive Cluster” ( catalogued as M44 by Messier ), NGC 2516, which is only visible from lower latitudes, has become known as the “Southern Beehive Cluster”. At a distance of around 1300 light years, NGC 2516 is relatively close to us and resides in the same spiral arm of the Milkyway as we do. Containing around 100 stars, with a number of them in the magnitude 5 to 6 range, NGC 2516 has an apparent magnitude of 3.8 and is visible to the naked eye as a small bright hazy patch at the edge of the Milkyway. Links: https://500px.com/MikeODay http://photo.net/photos/MikeODay Details: centre of image: RA 7h 58.4m, Dec -60 deg 41.9' (nova.astrometry.net) Field of view (arc min): 78.9 x 52.6 Scale of image: 2.18 arcsec / pixel Up direction in image is North Skywatcher Quattro 10" f4 Newtonian telescope Skywatcher AZ Eq6 GT Mount Guiding: Orion Shortube 80 guidescope, Starshoot Autoguider, PHD2 guiding RA only Baader MPCC Mark 3 Coma Corrector Hutech IDAS D1 light pollution filter Nikon D5300 (unmodified) Long exposure noise reduction on Stack of 14 x 360sec images @ ISO400 Pixinsight. Taken from the Blue Mountains above Sydney Australia over two nights: 29th and 30th March 2016
