Dec-2020. Telescopius link, please check, thanks,

https://telescopius.com/profile/niels_christensen

Latest news, joined AB again 26 Sep-2020, please have a look,

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

March-2024. An excellent resource on the role of data science in astronomy and interstellar exploration

http://datascienceprograms.com/learn/the-role-of-data-science-in-astronomy-and-interstellar-exploration/

June-2023. The Evolution of Space Exploration: From the First Satellite to AI

https://www.aihorizon.com/evolution-space-exploration.htm

Sep-2022, a collection of astronomy and space related learning games and activities for kids,

https://word.tips/space-solar-system-games/

Mar-2022, why not take a look at, Space: The Best Games & Resources

https://wordfinderx.com/blog/space-games/

Febr-2022, please check this one out, "Astronomy Resources for Kids" :-)

AAA State of Play Blog: Astronomy Resources for Kids

An an informative guide on stargazing, please check it out, thanks,

https://wiredcosmos.com/guide-to-stargazing/

Please check this out if your interested in constallations mythology, thanks,

https://www.halloweencostumes.com/constellations-mythology.html

A couple of astronomy related web-sites, please check them out, thanks,

https://www.edsmart.org/resources/astronomy-and-space-sites/

https://www.eduref.net/ancient-calendars-guide/

Have you heard of Garden Astronomy?

I can recommend all to read more here, thanks a lot :-)

https://diygardening.co.uk/astronomy-guide/

A comprehensive guide for people starting to learn about Astronomy, Science and a Physics Guide for 2020, please check below link, thanks a lot,

https://businesscostsaver.co.uk/astronomy-guide/

Detailed guide on back garden astronomy, please check it out, thanks a lot,

https://homesage.co.uk/guide-to-backyard-astronomy/

Please check out this great link about astronomy related topics, thanks a lot,

https://householdquotes.co.uk/guide-to-backyard-astronomy/

Another great place to start if you have a passion for "what is out there" :-)

https://starlust.org/

Astronomy for Kids, please have a look,

https://giftedgeek.co.uk/astronomy-for-kids/

How to Get Started With Astronomy While on a Shoestring Budget,

https://job-prices.co.uk/astronomy-shoestring-budget/

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.

The light pollution map from where I take my astronomical images, Amager CPH, Denmark,

http://www.dl.dropboxusercontent.com/s/d0np354ktadvq2t/LightpollutionAmager4size50pct.jpg?raw=1

12. Jan-2021, few M42 Nebula subs/frames taken with 16" F6.2 SCT, Baader 36mm RGB filters & a ZWO asi1600MM camera,

http://www.dl.dropboxusercontent.com/s/dfxlwigpua6eaye/M42RGBcolor16-30sec11-10secABE-APSv1MixV7size33pct.jpg?raw=1

22. Sep-2020. A NGC7331 RGB Galakse image. In total 78x120sec exposures. EQ: 16" ACF SCT F6.2, Baader 36mm filters, ZWO 1600MM cool camera, temp. -15C.

http://www.dl.dropboxusercontent.com/s/jsdtoqz336vartk/NGC7331-AllrgbRGB-78-120secScaledAPSV8size33pct.jpg?raw=1

22/23. Sep-2020. Stephan's Quintet, a LRGB Galaxy image. In total 9x300sec exposures.

http://www.dl.dropboxusercontent.com/s/6bcu7n781ot0d0o/StepQIR-UVcutMean01052-6-300secScaledAPS-Color3-300secV2size33pct.jpg?raw=1

M39, a open star cluster image, 

http://www.dl.dropboxusercontent.com/s/yvt293pro3hzu9v/M39-MeanRGBV1size33pct.jpg?raw=1

Another open star cluster image, NGC 457, the Owl Star Cluster. Total exposure RGB: 151x30sec 

http://www.dl.dropboxusercontent.com/s/4usri47f0u6j1zt/NGC457AllFramesAsLum-151-30secRGBColorAddv5size40pct.jpg?raw=1

7->8 og 14 Aug-2020, a NB(Ha/OIII) bicolor image of NGC6781, a planetary nebula. Total exposure: Ha/OIII: 2x16x300sec. RGB: 59x60sec,

http://www.dl.dropboxusercontent.com/s/d42xtox3x4t0fbx/NGC6781HaOIIImasterArtLumBicolorImgV5size40pct.jpg?raw=1

7/8 Aug-2020, a planetary nebula image of NGC6781. Total exposure app. 2 hours. It's a RGB, Ha, OIII image, 

http://www.dl.dropboxusercontent.com/s/3yz9nanycf9wb3c/NGC6781Trial1size100pctV11size33pct.jpg?raw=1

7/8 Aug-2020, a widefield NGC6781 planetary nebula image. Total exposure: 81x60sec. EQ used: WO FLT-110 F7 refractor, ZWO asi071MC pro cool camera & 4 pcs 2" filters used,

http://www.dl.dropboxusercontent.com/s/a5iv46rmfqse2ug/NGC6781-OSC-81-60secFilter1-4-PI-ABE-BgSubAPSMixCenterV1size50pct.jpg?raw=1

1. Aug-2020, IR pass image of the planet Saturn, standing low in the horizon in CPH, DK,

http://www.dl.dropboxusercontent.com/s/hmarxzmkxohfi9i/SaturnIR-0725Drizzle15-APSv2.jpg?raw=1

A Albireo image, raw data from 2013 and 2020,

http://www.dl.dropboxusercontent.com/s/5z9wrlvia6ab2hb/AlbireoNewOld-LRGBv4.jpg?raw=1

A RGB image of the double star Albireo, taken with long FL, 

http://www.dl.dropboxusercontent.com/s/cqnu4l6j60tdj47/AlbireoRGBFinalV4.jpg?raw=1

July 2020, EQ. update, a losmandy dovetail, FFC setup to increase the FL, take a look,

http://www.dl.dropboxusercontent.com/s/poqhupmcv0hj4b8/Meade16incLosmandyDovetailsize25pct.jpg?raw=1

http://www.dl.dropboxusercontent.com/s/9wlcjw1mzrr1kba/Meade16incFFCsetupForLongerFLsize25pct.jpg?raw=1

Comet C/2020 F3 NEOWISE, a mix image from 3 nights in July-2020,

http://www.dl.dropboxusercontent.com/s/itgu8b8y2qjsfy3/CometNEOWISEMedian30-2secISO1600-V9MixOldBGsize33pct.jpg?raw=1

Comet C/2020 F3 NEOWISE, CPH Amager, taken from my backyard around midnight 17/18 july-2020. Stacksize: 30x2sec, ISO1600. Canon 60Da and SamYang 135mm F2.8,

http://www.dl.dropboxusercontent.com/s/j0qtm6tohsocqsi/CometNEOWISEMedian30-2secISO1600-V8size33pct.jpg?raw=1

Comet C/2020 F3 NEOWISE, CPH Amager Beach area looking north, 9. July-2020,

http://www.dl.dropboxusercontent.com/s/gsq4qktasby80xv/CometIMG5327-1StackOnCometAll-LayersFlatMC-LAB-APS-RNsize33pct.jpg?raw=1

A Gif sequence, 10 images in a row,

http://www.dl.dropboxusercontent.com/s/ftc9r557l5f2nh1/CometC-2020F3NEOWISE9-7-2020.gif?raw=1

The Comet C/2020 F3 NEOWISE taken 10 July-2020, 00.18, stack of 19 images,

http://www.dl.dropboxusercontent.com/s/0w9582y9zu97da6/CometIMG-5463-Stack19IMG-TPZ-USMVibraNewBGsize33pct.jpg?raw=1

Panorama, a banner NLC, comet C/2020 F3 NEOWISE view,

http://www.dl.dropboxusercontent.com/s/eywwzpuuqzqkzd8/PanoramaBannerNLCCometNEOWISEsize33pct.jpg?raw=1

24. June 2020. Another Moon image (than the above) taken 10.45pm, and here was used another objektive, the SamYang 2.0/135mm. Exposure settings: 1/25 sec, ISO400,

http://www.dl.dropboxusercontent.com/s/342e0s2g7rwssim/Moon-CloserIMG-4931v6size40pct.jpg?raw=1

7 -> 8 June-2020. M14 star cluster.

A color/LRGB image. Exposure details, LRGB=42x60sec+22x120sec and color subs=41x180sec. 16" SCT F6.2, WO FLT-110 scopes & ZWO asi1600MM & 071MC cameras used, two processing versions shown,

http://www.dl.dropboxusercontent.com/s/eueaw88omzf4ew8/M14-ColorLRGB-16SCT-WO-FLT110-ZWOcamerasV4size33pct.jpg?raw=1

http://www.dl.dropboxusercontent.com/s/x2goj45fsk7v4og/M14-ColorLRGB-16SCT-WO-FLT110-ZWOcamerasV3size33pct.jpg?raw=1

7. June-2020. Moon exposures made 1. June 2020 & 6. April-2020. A creation of an Moon with earth shine floating in space. The used images can be found below,

http://www.dl.dropboxusercontent.com/s/hyvqldrhy18c2px/MoonBG-29-60secColorAdjAPSV2size50pctMixMoonFlat2DeSATv2.jpg?raw=1

1. June 2020. Another Moon image shown here taken with a color cam ZWO asi071MC pro & a 110mm refractor, WO FLT-110 F7 and a Baader 2" UV/IR cut filter used. Expo. time moon background: 29x60 sec and a moon SER stack taken with FireCapture, the best 12 % of 1000 frames was used (AutoStakkert x64, drizzle 1.5),

http://www.dl.dropboxusercontent.com/s/ibi3205z1mbdkoa/MoonBG-29-60secColorStackMoonBest12pctDSBigCenterC.jpg?raw=1

The same moon color AS drizzle 1.5 stack, as shown above, was used for this size 80% image,

http://www.dl.dropboxusercontent.com/s/7udo1m3mr0tkoem/Moon-231853ASDrizzle15-PCSize80pctMC-HLVG.jpg?raw=1

1. June 2020. A Moon crater Copernicus.

EQ: 16" SCT LX200ACF F6.2 scope, a FFC, ZWO asi1600MM cool camera and a Baader 36mm UV/IR cut filter.
FC stack size was 1000 frames and the best 12% AS stack was processed in PS CS6.

http://wwww.dl.dropboxusercontent.com/s/gzjsdpt4gawrv6y/MoonCraterCopernicus-223823-UV-IRCutBaader36mm-sizeBC-SS-80pct2Crop.jpg?raw=1

28 Maj-2020. A Moon matrix image. The FireCapture programme was used and 4x500 frames was recorded. The Autostakkert 22% stacks were used for further processing in PS CS6.

Moon matrix link to size 25%, 

http://www.dl.dropboxusercontent.com/s/ur2fcf6rzr563m3/Moon-28-5-2020Matrix4times500framesFCv1Size25pct.jpg?raw=1

Moon matrix link to size 50%,

http://www.dl.dropboxusercontent.com/s/040hvjb564otts0/Moon-28-5-2020Matrix4times500framesFCv1Size50pct.jpg?raw=1

In parallelt this/another Moon matrix image was recorded. First part image data:35x0.002 sec + 60x0.004 sec single images stack'ed Autostakkert and second part image data: 6x5.1 sek single images stack'ed in PS CS6. These two parts were merged together in PS CS6.

EQ used: WO FLT-110 mm F7 refractor, Atik Horizon mono camera and a 2" Optolong Ha filter.

http://www.dl.dropboxusercontent.com/s/ur1zomc6qe8lcfv/MoonBW-35-60picsMix50pctCropAI-WS-SCMix6imagesHighExpV1size50pct.jpg?raw=1

A single image taken from my garden  looking in north west direction. The light glow from CPH can be seen. Image data, 26-May-2020 local time: 21.57. Camera expo. time, 1/40 sec, setting ISO2000. Image processing: PS CS6 used first in RAW format then stored on HD as 16 bit tif and here shown in size 25% jpg format. EQ: Canon 60Da & et SamYang 135mm F2.8 objective placed on a small tripod,

http://www.dl.dropboxusercontent.com/s/t9kuho11y09yztc/MoonIMG-4596-26-5-2020v2size25pct.jpg?raw=1

4 & 11 May-2020. The M104 Galaxy, a LUM-RHa,G,B image. Total exposure time: Lum=3x300sec+81x60sec+18x30sec, RGB=53x60sec & Ha=4x600sec. EQ: 16" SCT scope F6.2, ZWO asi1600MM cool camera & Baader LRGB, Ha 36mm filters, two processing versions,

http://www.dl.dropboxusercontent.com/s/f62l3hoggcccsd2/M104-All-LumBlendRGB-V6RedChHaAddV10_regMix30secs-LayersFlatV15size33pct.jpg?raw=1

http://www.dl.dropboxusercontent.com/s/pwame0dki6yfxwu/M104-All-LumBlendRGB-V6RedChHaAddsize25pct.jpg?raw=1

M104 Galaxy, all lum frames from above image, here shown as a inverted image,

http://www.dl.dropboxusercontent.com/s/wsh7802pt8deljz/M104-All-LumCONT-GXT-SS-INVsize25pct.jpg?raw=1

9-10 May-2020, A M61 LRGB image with SN 2020jfo taken with 16" SCT F6.2 FL ca. 2.5 m, ZWO asi1600MM camera and 36mm Baader LRGB filters. Total expo. time: Lum=14x180sec+25x60sec. RGB in total=24x60sec. Blended into the BG total exposures 45x120sec, taken with a WO FLT-110 F7 refractor, Atik Horizon mono camera, and a IDAS LPS P2 filter,

http://dl.dropboxusercontent.com/s/tejzc5ee85p30zf/M61-Lum14-180sec25-60sec-RGB-24-60secV2mixBGwfV4size25pct.jpg?raw=1

 A LUM-RHa-G-B image of the Galaxy named M94. The Galaxy is more reddish than usual due to 40min of Ha info blended into the red CH. Exposures taken 21->23 April 2020. Total exposure time: 6.33 hours. Shown here is latest modified version :-)

http://dl.dropboxusercontent.com/s/1vvxn3uc4ff48y2/M94-LUM-RHaGB-CCDStack2-APS-V9size25pct.jpg?raw=1

A LRGB/color image of the Galaxy named M64. Exposures taken 18->20 April 2020. Total exposure time: 4.33 hours. Gear used: 16" SCT ACF F6.2 scope FL app. 2.5m. ZWO 1600MM and 071MC pro cameras. IDAS LPS-P2 2" filter & Baader LRGB filters.

http://dl.dropboxusercontent.com/s/een6x0majn6d2tc/M64-LumRGB-ArtLumColorV11Size33pct.jpg?raw=1

A Moon matrix BW image from 4. April 2020. It consist of more that 500 single images quality sorted, best 11% of each stack, and stacked in AutoStakkert, merged together in PS CS6. Gear used: 16" SCT ACF F6.2 scope, ZWO 071MC pro camera, 2" UV-IR block filter, size66% of full size,

http://dl.dropboxusercontent.com/s/o8tsrgq08kvmmux/MoonMatrix16SCTZWO071MC-BW-SingleImagesV5size66pct.jpg?raw=1

Copyright Niels Haagh/Niels V. Christensen.

M101 Galaxy color image, total exposure time app. 25 hours. This image consist of below two M101 Galaxy images merged together in PS,

http://dl.dropboxusercontent.com/s/c1de09tdmxej93e/M101LRHaG-Canon1100DaNH-LRGBCanon60DaNVCv1Size66pct.jpg?raw=1

Copyright Niels Haagh/Niels V. Christensen.

M101 Galaxy color image from March/April 2020, total exposure time app. 12 hours. Gear used: Mount, TTS-160 Panther, TEC 140 F7 refractor, Canon 1100Da camera & a Atik 460EX mono camera. Baader LRGB, Ha filters. RAW image data taken/provided by Niels Haagh,

http://dl.dropboxusercontent.com/s/ujvcl5uvdqkjuuo/M101-LRHaGB-NH-nvcV4-USM-LrgbLABrepairSize66pct.jpg?raw=1

Copyright Niels V. Christensen.

M101 Galaxy color image from 2016, total exposure time app. 13 hours. Gear used: Mount, a Baseunit on a wedge, 16" SCT LX200ACF F6.2 scope, WO FLT-110 F7 refractor, Canon 60Da camera & Atik 460EX mono camera. Baader LRGB filters,

http://dl.dropboxusercontent.com/s/gotwxi0ic85k42d/M101-LRGB-13HoursFinal2016Size60pct.jpg?raw=1

April-2020,

Current astro-setup/gear remotely controlled using chrome remote desktop, a great tool :-)

http://dl.dropboxusercontent.com/s/6pb0imacso0fsmd/AstroSetup21-3-2020Flat.jpg?raw=1

A Moon mosaics image taken 5 April-2020. Gear used: 16" SCT F6.2, FL app. 2.5m, ZWO 071MC camera & a Baader 2" UV-IR block filter. 7% of 6x500 frames used from Firecapture. Autostakkert & PS used for the processing part. Two image versions.

http://dl.dropboxusercontent.com/s/y9uyklsergcw0z4/MoonImageMozaic16SCT-ZWO-071MCv4Size50pct.jpg?raw=1

http://dl.dropboxusercontent.com/s/720dtewzkq2ubqi/MoonImageMozaic16SCT-ZWO-071MCv2Size50pct.jpg?raw=1

6. April-2020. A Moon image taken 6 April-2020. Gear used: WO FLT-110 refractor, ZWO 1600MM camera & a 2" IDAS LPS-P2 filter. 7% of 2000 frames used from Firecapture. Autostakkert & PS used for the processing part. Two processing versions.

http://dl.dropboxusercontent.com/s/li2z5yfy5w14xk3/Moon_233930_lapl5_ap211-APS-NR-AI-DS-AI-SCmaskSize66pct.jpg?raw=1

http://dl.dropboxusercontent.com/s/ul53pw5i6tm3rw4/Moon_233930_lapl5_ap211-APS-NR-USM-AI-SCmaskSize80pct.jpg?raw=1

Just to compare with this 16" SCT, ZWO1600MM image. A slice Moon image, high resolution 16bit tif image, an old moon image taken years ago :-)

http://dl.dropboxusercontent.com/s/cyrypfq19vnnv6z/Moon-Matrix3picsLayersFlatCropRepairFinal.tif?raw=1

A Venus, Seven Sisters/M45 color image taken 3. April-2020. Gear used: Small tripod, Canon 60Da camera & a SamYang 135mm objective,

http://dl.dropboxusercontent.com/s/5h9j33sbdqv2qni/Venus-M45-IMG-3659-APSv1size33pct.jpg?raw=1

A Moon color image taken 3. April-2020. Gear used: Small tripod, Canon 60Da camera & a SamYang 135mm objective,

http://dl.dropboxusercontent.com/s/uy9jj8vb0m4mjne/Moon-3-4-2020IMG-3747-APSv1ColorCenterTPZV1-size33pct.jpg?raw=1

A NGC4565 Galaxy image. It's made from a luminance and a color stack,

http://dl.dropboxusercontent.com/s/wtkh5no0en3b0ym/NGC4565-ColorFinalV4size33pct.jpg?raw=1

A NGC3628 Galaxy image. It's made from a luminance and a color stack,

http://dl.dropboxusercontent.com/s/jquc1lkuarpv1eh/NGC3628-ZWO071MC-16SCT-F62MixWO-FLT-110-F7-ZWO1600MM-FinalVersion4Size33pct.jpg?raw=1

M1, the Crab Nebula, taken 19. Jan-2020. It is composed as a Luminance / Bi-color NB image,

http://dl.dropboxusercontent.com/s/9glkviz0f6856st/M1-LumHaOIII-WO-SCT-19Jan-2020-NVCv6size33pct.jpg?raw=1

A Super Moon handheld/color image taken 9. March-2020. Gear used:Canon 60Da camera & Samyang 135mm objective. Camera settings ISO6400, exposures from 1/8000sec to 1/250sec.

http://dl.dropboxusercontent.com/s/a7rgfp0wkqvh3m2/SuperMoonAPSv10MixCenterSize33pct.jpg?raw=1

M42 C9.25 Hyperstar setup, Panther TTS-160 mount, ZWO 071 Color Camera. Subs taken & pre-processing done by Mr. Niels Haagh. Final processing done by me. Total exposure: 20x120sec, a rgb-starless++ image,

http://dl.dropboxusercontent.com/s/pxejxkay4r47m31/M42v3starlessAPS-LayersFlatV2-TPZsize33pct.jpg?raw=1

Panther TTS-160, C9.25 hyperstar setup/gear,

http://dl.dropboxusercontent.com/s/rzy82bsbh5tvogj/2019-10-05-181146HyperstarRigUsedSize33pct1.jpg?raw=1

M42 Hyperstar org. image blended with the streched starless image above,

http://dl.dropboxusercontent.com/s/wa6hbjfz3jr66s0/M42v3starlessAPS-LayersFlatV2-TPZStarsBackSize33pct.jpg?raw=1

Below HH Hyperstar setup subs  taken & pre-processed by Mr. Niels Haagh.

Final processing done by me. Total exposure time: 33x120sec,

Horsehead starless image. Starless++ & PS used,

http://dl.dropboxusercontent.com/s/scp8ls3pqmre39d/HHv4starlessAPSv2Size33pct.jpg?raw=1

Horsehead starless image enhanced & combined with org. image. Combined in PS with a lighten layer,

http://dl.dropboxusercontent.com/s/m8j8z3twsaumj6k/HHv4starlessAPSv2MixOrgAsLightenLayerSize33pct.jpg?raw=1

Horsehead drizzle image,  a PI SubFrameSelector w. weight factor, StarAligned & ImageDrizzle/Combined color image,

http://dl.dropboxusercontent.com/s/udfq0u62xrlkl6u/HH-C925-ZWO-071-33-120secdrizzleNH-NVCv4Size40pct.jpg?raw=1

The Horsehead color image PI SubFrameSelection screen dump,

http://dl.dropboxusercontent.com/s/wdoheoiw09bscxp/ScreenDumpHH-C925-NHnvc20-02-2020-195755.jpg?raw=1

Below M51, M1, NGC4631 subs/images taken with 16" SCT, ZWO 1600MM Pro camera / Atik Horizon camera & Baader filters. All processing done by me.

M51 BW image, PI processes used are the same as mentioned above, 

http://dl.dropboxusercontent.com/s/d0n6xt30og1egot/M51-HorizonZWOintDrizzle2-LRGBframesSubFrameSelectedinPIv2size25pct.jpg?raw=1

The M51 BW image PI SubFrameSelection screen dump,

http://dl.dropboxusercontent.com/s/goqzk75hkvfi7fk/M51-SFS-ScreenDump5.jpg?raw=1

M1, the Crab Nebula. It is composed as a BW image where I have used some PI processes, the same as mentioned above.

It's an integration of 584 single images. Now merged with old color data from 2019 & 2020,

http://dl.dropboxusercontent.com/s/3sgmhab1lo51cik/M1-584subs-PI-drizzle-integrationV1MixColor2019-2020-V1size25pct.jpg?raw=1

M1, the Crab Nebula. It is composed as a BW image where I have used some PI processes, the same as mentioned above,

It's an integration of 584 single images,

http://dl.dropboxusercontent.com/s/yrb0lphl2f4kp63/M1-584subs-PI-drizzle-integrationV1Size25pct.jpg?raw=1

The M1 BW image PI SubFrameSelection screen dump,

http://dl.dropboxusercontent.com/s/1zwh2eawih3y37x/PrtScreen09-02-2020.jpg?raw=1

NGC4631, the Whale Galaxy. It is composed as a BW image where I have used some PI processes, the  same as mentioned above .

It's an integration of 324 single images here merged with old color data from 2017 & 2018,

http://dl.dropboxusercontent.com/s/8ugf358pxnsrtr2/NGC4631LumArtLumRGB-Final-PI-SFSasLumV1Size33pct.jpg?raw=1

New astro web site, still under development/construction, seem to be never ending story ;-)

http://astro-billeder.dk/index.html