MY ASTRO HOMEPAGE
The NGC6946 Galaxy, a LUM-RHaGB picture taken in May-2017, several nights of exposure was needed. In total 9.5hours of exposure.
Observatorie construction during 2005

Hi and welcome to my astro homepage, which have one purpose only, to show and share with you my best astro pictures taken from Copenhagen, Denmark. Kind regards

Niels V. Christensen

E-mails to reach me,
nvcchr@mail.dk   ,
nielsv@astro-hp.dk  , nielsnvc123@yahoo.com or nvcchr90@gmail.com

The obs. picture shown at the right side is from 2005. 

A afternoon in 2005 with very special weather conditions when the sun disappeared below the horizon. The observatory at that time was not finalized and among other things the rotating roof was not yet made and mounted.

Copyright, please note that all pictures are copyrighted to Niels V. Christensen, if not otherwise stated. Any content on this website must not be reproduced without authors permission.

New web site under development,
http://astro-billeder.dk/index.html        

Please check out my Astrobin.com account,

http://www.astrobin.com/users/nvcchr1/

So sorry, but! Copy & paste info:

Hi Niels,
This is a reminder that your Public folder links will become inactive on March 15. On that date, your Public folder will become a standard Dropbox folder, and your files will remain safe in your account. If you want to share those files again, you’ll need to use shared links instead.

The Public folder was the first sharing method we introduced, and since then, we’ve built more sophisticated ways for you to share securely and work together with your team. In addition to shared links, we have a number of sharing options designed to make collaboration easier and give you more control.

We understand these sharing methods are not a direct replacement for the Public folder in some cases—we apologize for the inconvenience this may cause. For more information on transitioning from the Public folder to shared links, visit our Help Center.

- The Dropbox Team
     

UPDATE of links is on-going!

10. July 2017, a M27 WF OIII/Lum picture, ~3.2hours in total exposure,

https://www.dropbox.com/s/6ji5tki19fzeoce/M27-OIII-14-300secLum60-30secCenterOIII-18-300secLum14-30secSize66pct.jpg?dl=0

10. July 2017, a M27 OIII/lum picture, ~1.5hour in total exposure. The individual frames were taken in/on a full moon sky & in the usual light polution from the main capital of Denmark, Copenhagen,

https://www.dropbox.com/s/efcfu5th54pav1w/M27-NoFlat-OIII-18-300secMean20259DeconScaledMixHMixLum-2APS-TPZ-Final40pct.jpg?dl=0

2. July 2017, a section of the moon, just a single Ha picture! The best one I have taken so far, that is called "lucky imaging". Picture size is 80%,

https://www.dropbox.com/s/jkxryhj2rk8k9sf/MoonHa-CROP-APS-Mix-TPZ-GB-USMSize80pct.jpg?dl=0

2. July 2017, a moon picture, put together as a matrix of single moon pictures, using the same photo setup as described below,

https://www.dropbox.com/s/eunvtr06hm9t8rm/Moon-Ha-2-7-2017-APS-4-Mix3-size30pct.jpg?dl=0

2. July 2017, a section of the moon taken with a 16" SCT, Atik 460ex mono camera and a Ha filter. It is one single picture enhanced slightly in photoshop, no stacking performed,

https://www.dropbox.com/s/u5i8h07w9gbkqu0/MoonSectionHaAPS-AI-SC-Mix50pctSize60pct.jpg?dl=0

21 June-2017. Between the clouds in the sky and in a very bright summer night I was able to get, with my 16" SCT, 12x300sec OIII and 11x300sec Ha subs, now added to the below BW M27 image. On purpose I have moderated the stars in the cropped picture,

https://www.dropbox.com/s/v17xdfblsaq3mjh/M27-LUM-12-300secOIII-MixHa-11-300secSize66pct.jpg?dl=0

21. June-2017. A M27 version with old color info. added (the FOV in color picture was smaller),

https://www.dropbox.com/s/v2noyqwkvwqimg6/M27-LUM-12-300secOIII-MixHa11-300secOldColorSize66pct.jpg?dl=0

18-19 June-2017. The first M27 2017 picture. It is a Lum mixed with Ha info.

https://www.dropbox.com/s/nmnjiwm55nq6dr6/M27-WO-Lum30-2minMean19680DeconScaledMixHaSCMixOrg-GXT-L-TPZ-Size33pct.jpg?dl=0

5-6-2017. A matrix moon, single pictures, taken with/through a Ha filter. Equipment used: 16" SCT and a ZWO ASI1600MM cool camera,

https://www.dropbox.com/s/d2d62oamo1yq5oz/Moon-Ha-Matrix-5-6-2017-NR-HP-MixAI-SC-Size17pct.jpg?dl=0

28-5-2017. Galaxy NGC6947, in total 9.5 hours of exposure. The Ha part was 30x300sec frames stacked and integrated into the red channel, which make it into a Lum,RHaGB picture,

https://www.dropbox.com/s/n38qi9bsd3sy0ny/NGC6946-RHaGB-9-5hoursAPS.jpg?dl=0

23-5-2017. Latest  color picture version of the Galaxy NGC6947. Changed the color and used the lowest Lum FWHM's stack,

https://www.dropbox.com/s/i0gybv4x9ugnj4e/NGC6946-CloseUp-LumHaRedGreenBlue-7hoursMixLum-LowFWMH-AddWF-Pic-L-50pct.jpg?dl=0

20->21 May-2017. Color data, Ha, R, G and B added. WO FLT-110/Atik 460 ex mono R,G,B exposure = 3x20x180sec. 16" SCT/ZWO asi1600mm cool R,G,B exposure = 3x30x120sec. Ha exposure = 12x300sec.

https://www.dropbox.com/s/p724ob99sq0hkae/NGC6946-Lum-RedHa-GreenBlue-May-2017-Size50pct.jpg?dl=0

The 'close-up' picture, ~7 hours of exposure,

https://www.dropbox.com/s/p46m58g79fq6im2/NGC6946-CloseUp-LumHaRedGreenBlue-7hours1000.jpg?dl=0

Came out observing 19->20 May-2017. A couple of Lum pictures that covers this event: Supernova SN 2017eaw and NGC 6946.

An gif animation, a 'before' and 'after' Lum picture,

https://www.dropbox.com/s/r193krzbkg939y3/NGC6946-Lum12-13Sep-2016-19May-2017-Supernova.gif?dl=0

and a WO FLT-110, Atik 460ex mono/lum picture,

https://www.dropbox.com/s/e7cctmymnebjwvm/NGC6946-Lum27-180secMixCenterSize50pct.jpg?dl=0

A close-up Lum merge picture of old and new NGC 6946 frames,

https://www.dropbox.com/s/6ytmiytg96aqfsc/NGC6946-Lum-12-13Sep-2016MergeSupernovaMay-2017-APS-Size70pct.jpg?dl=0

Here I used the best 6% frames of a 20GB SER movie of the Moon. The cropped picture was taken 8 -> 9 May-2017 and the picture size is 100%.

https://www.dropbox.com/s/devrwhm664hc0w0/Moon-crop1748-lapl4ap835APSAI-DeconSharpTPZ-Mix20pct.jpg?dl=0

A section of the Moon. The picture was taken 8 -> 9 May-2017. Two sorted stacks of frames were merged together in Photoshop,

https://www.dropbox.com/s/fbat80iha0vynjv/MoonSection-8-9-Maj-2017-50pct.jpg?dl=0

NGC 4631 whale galaxy taken 30 April/1 May 2017. A Lum picture. Exposure: 19x180sec. Taken with 16" SCT and ZWO asi1600mm camera.

https://www.dropbox.com/s/e2we4icogyp24tv/NGC4631-Lum-19-180sec-Mean3196DeconScaledL-APSMix5pctUSM-TPZ-25pct.jpg?dl=0

M101 galaxy taken 30 April/1 May 2017. Exposure: 20x180sec Lum data and taken with my 16" SCT and ZWO asi1600mm camera,

https://www.dropbox.com/s/dt6ykhl211mfgve/M101-Lum-20-180secMean3207DeconScaled-APS-SC-USM-NI-MC-GXT-L25pct.jpg?dl=0

April-2017, my latest photo, a L(20x180sec new raw data),RGB picture of the M101 galaxy, a mix of old & new raw data,

https://www.dropbox.com/s/c9w0vqazdr096mo/M101-Lum-20-180secMean3207DeconScaled-APS-SC-USM-20pctLum-70pctcolor-crop-AI-SC-NI-25pct.jpg?dl=0

24/25. April-2017, more LRGB raw data was added to the M63 Galaxy Lum picture below,

https://www.dropbox.com/s/lgs676vfuc4ty17/M63-LRGB-April-2017-version2-StarsBG-LAB-25pct.jpg?dl=0     

22/23. April-2017, the M63 Galaxy, a Lum picture,

https://www.dropbox.com/s/tia0ok77hff2cna/M63-Lum-94-60secMix9-180secFinal-25pctMixWFLum-L.jpg?dl=0

https://www.dropbox.com/s/stbtlxy7ylby0hw/M63-WF-Lum-36-120secCropMixCenter94-60secStarsGB-Size50pct.jpg?dl=0     

19. April-2017, Asteroid 2014 JO25, time: 23.05 -> 23.07 CEST,

https://www.dropbox.com/s/q9pyb4w5tlvho5r/Asteroid2014-JO25-19April2017.gif?dl=0

https://www.dropbox.com/s/tmmcvauzl4xnh8d/Asteroid-2014-JO25-5-30secLum-pictureSize33pct.jpg?dl=0

April-2017, NGC 4214 a LRGB Work in Progress picture. Latest revision is shown here and now also public on my astrobin account:

https://www.dropbox.com/s/vu4el8bvw58jpnv/NGC-4214-LRGB-2016-2017-Final-USM-WF-infoAdd-70pct.jpg?dl=0     

3-April-2017, a RGB picture of the Moon, 2 versions,

https://www.dropbox.com/s/o6dnblhbjqupbjx/MoonRGB-APS-Final-3April-2017-70pct.jpg?dl=0

https://www.dropbox.com/s/9tsj2kvjfzz7v01/MoonRGB-APS-Final-3April-2017-AIContrast-C-70pct.jpg?dl=0     

Mar-2017, a comet 41P-Tuttle-.... Lum pictures,

https://www.dropbox.com/s/up29n6iuvzc7faj/Comet-41P-Tut49-60secCometKernelAdded-final-TPZ-25pct.jpg?dl=0

https://www.dropbox.com/s/fdutlpkeb8ay1bn/41P-Tuttle-Giacobini-Kresak29-120secFinal40pct.jpg?dl=0

https://www.dropbox.com/s/7t4fi40wge63n7o/41P-Tuttle-Giacobini-Kresak-29-120secPlus49-60secCometKernelGXT-BG-40pct.jpg?dl=0

https://www.dropbox.com/s/ndpvvlfazeeyvpp/41P-Tut-49-60sec-StackOnStarsMean00002252DeconScaled-APS-TPZ-25pct.jpg?dl=0     

Mar-2017, the Crab Nebula, a LUM-Ha-OIII BW picture,

https://www.dropbox.com/s/ires8wbb3fb7hu3/M1-Lum92-99-134-59-30sec-25-60secMixHa-OIII-crop33pct.jpg?dl=0

Mar-2017, the Crab Nebula, a Ha-OIII BW picture,

https://www.dropbox.com/s/8rk974swwohgm4a/M1-OIII-21-300sec-Mean00001413DeconScaledLowMixHaCenterMixHa-ZWO3-5min-C-APS-25pct.jpg?dl=0

Mar-2017, the Crab Nebula, a Lum-Ha-OIII WF BW picture,

https://www.dropbox.com/s/ct6uzlkne3lkkin/M1-Lum-28-60secMixHaOIII-L-2C40pct.jpg?dl=0

Febr-2017, the M51 Galaxy, a 2014 -> 2017 color WB/NB picture,

https://www.dropbox.com/s/3sv4zksqguhclwd/M51-NVC-2014-2015-2016-2017-USMV3.jpg?dl=0

Old pictures of M97,

https://www.dropbox.com/s/yss0qrkwwbb8hlb/M97-RGB-3-20minLumMasterAdded-AnotherTry2017-66pct.jpg?dl=0

https://www.dropbox.com/s/yikgs94njdauncz/M97LRGBwNBinfo10hoursReProcessed70pct.jpg?dl=0

https://www.dropbox.com/s/xrydfwz2s5lrugg/M97-OIII-48-5minMaster80pct.jpg?dl=0

https://www.dropbox.com/s/9bx2p8x4uxn0bd5/M97-Ha-29-5minMeanDeconScaled-APS-TPZ-SC-LRD70pct.jpg?dl=0

Copyright, Niels V. Christensen, 2017.