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OMGOMGOMG. I had a chance to try out the new Celestron RASA 8! For those of you who are familiar with our weather in Seattle, you'll understand our excitement about getting a 4-day stretch of PERFECT (and cold) weather during new moon.
Because the RASA is f/2, I collected a TON of data which I will process in the coming cloudy days, but I wanted to post this one photo of M42 ASAP because it is a true testament of what this astrograph can do.
This is a mere ~1 hr of data from a Bortle 8-9, urban sky. For you f/7 imagers out there, YOU would have to expose for 14.4 hours to get the same signal to noise! To help with the massive amount of light pollution in my area, I used the Celestron RASA LPR filter that just threads in to the top of the RASA corrector.
I'm VERY excited about the potential of this scope. It's an extremely fast, high performing, and affordable scope, AND it's probably one of the easiest systems I've used.
More tips in future posts (including a "how-to" on flat taking), but here's a good one to start out with: Make sure you have the right spacing between the camera and the RASA corrector for best optical performance. Incorrect spacing will really hurt imaging quality. If your stars are in focus in one part of the field, but out of focus elsewhere in the field, you should suspect that spacing might be the culprit.
Image details:
34x2min
12x5sec exposures (HDR Composition)
=69 min
Celestron RASA 8" f/2 Astrograph
Celestron RASA Light Pollution Reduction filter
ZWO ASI294MC-Pro Camera @ -15-degrees C
QHY Mini guide scope with ZWO178MC guide camera.
Sequence Generator Pro
PHD2
Stacking, HDR Composition, and additional processing with PixInsight
Background gradient removal with AstroPixelProcessor
I was lucky enough to catch the ISS transiting the Moon from my back garden yesterday evening (22nd Jan). Here’s a composite of the frames containing the space station. Celestron Edge HD11 scope, ZWO ASI174MM camera.
Sh2-112 is a visibly emitting nebula in the constellation of Cygnus.
It is located in the northern part of the constellation, about 1.5 ° to WNW of the brilliant star Deneb.
It is a circular H II region of apparent size of about 15', crossed by a dark band on its western side oriented in a north-south direction. It is believed that the star responsible for its excitation is BD+45 3216; estimates of the distance of this star provide a value of 1740 parsec (about 5670 light years), which would place so Sh2-112 in a region of the Orion Arm particularly rich and physically very close to the great nebulous system of Cygnus X.
Translated with www.DeepL.com/Translator
(credits Italina wiki: it.wikipedia.org/wiki/Sh2-112 )
Technical card
Imaging telescope or lens:Altair Astro RC250-TT 10" RC Truss Tube
Imaging camera:ZWO ASI1600MM-Cool
Mounts:Mesu 200 Mk2, Astro-Physics Mach-1 GTO CP4
Guiding telescope or lens:Celestron OAG Deluxe
Guiding camera:ZWO ASI174 Mini
Focal reducer:Riccardi Reducer/Flattener 0.75x
Software:Main Sequence Software Seqence Generator Pro, Pleiades Astrophoto PixInsight
Filters:Astrodon L Gen.2 E-series 36mm, Astrodon HA 36mm - 5nm, Astrodon B Gen.2 E-series 36mm, Astrodon G Gen.2 E-series 36mm, Astrodon R Gen.2 E-series 36mm, Astrodon S-II 36mm - 5nm, Astrodon O-III 36mm - 5nm
Accessories:ZWO EFW, MoonLite NiteCrawler WR30
Resolution: 2328x1760
Dates:July 7, 2019, July 21, 2019, Aug. 30, 2019, Aug. 31, 2019
Frames:
Astrodon B Gen.2 E-series 36mm: 35x30" (gain: 75.00) bin 1x1
Astrodon G Gen.2 E-series 36mm: 35x30" (gain: 75.00) -20C bin 1x1
Astrodon HA 36mm - 5nm: 148x600" (gain: 200.00) -20C bin 1x1
Astrodon O-III 36mm - 5nm: 30x600" (gain: 200.00) -20C bin 1x1
Astrodon R Gen.2 E-series 36mm: 35x30" (gain: 75.00) -20C bin 1x1
Astrodon S-II 36mm - 5nm: 42x600" (gain: 200.00) -20C bin 1x1
Integration: 37.5 hours
Avg. Moon age: 6.39 days
Avg. Moon phase: 27.92%
Astrometry.net job: 2916861
RA center: 308.507 degrees
DEC center: 45.642 degrees
Pixel scale: 1.007 arcsec/pixel
Orientation: 90.074 degrees
Field radius: 0.408 degrees
Locations: AAS Montsec, Àger, Lleida, Spain
Data source: Own remote observatory
Remote source: Non-commercial independent facility
Telescopio: Celestron C11 XLT Fastar
Montatura:iOptron CEM60
CMOS di ripresa: ZWO ASI 174 mono Cooled
Lunghezza focale: 2800 mm
Filtro: Optolong Red CCD 50,8 mm
Software:SharpCap 3.2 Pro, Emil Kraaikamp Autostakkert 3.0.14, Zoner Photo Studio X v. 19, Pleiades Astrophoto PixInsight 1.8, Astra Image 4 SI
Focuser: Moonlite CF 2" focuser with high resolution stepper DRO
Pose: 400 su 1009 riprese a 65 fotogrammi al secondo
Seeing: 1 Trasparenza: 8
Telescopio: Celestron C11 XLT Fastar
Barlow Zeiss Abbe 3.5X
Lunghezza focale: 9800 mm
CCD: Lumenera Skynyx 2.0 mono
Montatura: Skywatcher NEQ-6 Pro Synscan
Filtri: Baader Planetarium R G B pro
Data: 13 Giugno 2013 Ore: 21:39 Tempo Locale
Pose: 840 su 3.000 riprese a 17 fotogrammi al secondo
Seeing: 3 Trasparenza del cielo: 7
Messier 57 The Ring Nebula in Lyra, imaged from London on the 28th July 2020.
Celestron Edge HD11 scope & ZWO ASI1600MM Pro camera. Unguided 180x10 second (30 mins) through a Ha & Oiii filter. Ha mapped to red, Oiii mapped to green and blue.
Telescópio Celestron C90 1000mm f11 Maksutov com uma Nikon F.
O anel adaptador para esta Nikon, também é compatível com máquinas digitais.
The largest are the Celestron Skymaster 25x100. They need a tripod at almost 4kg, however the views are surprisingly good on deep sky objects. I have a Meade and a Manfrotto tripod for them. I can say that Manfrotto do make good tripods, and they are expensive, but well worth the money.
Next is the 11x80 Celestron Comet Hunter, light enough for hand held use, so gets more use than the big one. I don't know if was just lucky but the optics on these are superb.
The smallest are the zeiss, I've owned these for about 25 years.
The meades were from Lidl. The quality of these ranged from just OK (for the price) to very good. I chose the best of 10 pairs and got some that are very good indeed.
The 12x50 Tohyohs(middle pair) are the latest addition, second hand. They are sharp(ish)
to the edge of field, but have a significant barrel distortion, but not really noticeable for casual astro observing.
I keep a pair of vintage Olympus 6-15x35 zoom binoculars at work - despite the poor reputation of zooms they are very good.
I just need to add some 15x70s and a pair of top quality Nikons as a benchmark......
Astronomy with binoculars? - It's good fun!.
Just found my bresser 10x50s (Lidl or Aldi? I can't remember!). Looks like they came out of the same factory as the Meade 10x50s but when comparing the two the view through the bresser has noticeably more contrast. Looks like I'll keep the meades bouncing around in the car....
Latest edition to the collection is a pair of Greenkat 10x50 with quick focus - not an asset for astronomical use but very convenient for garden use.
Celestron 8 inch Newtonian on AVX mount. Canon 500d iso 800. Guided with SSAG on ZWO 60mm guidescope and PHD2.
5x360s exposures with Darks and Bias frames.
Telescópio Celestron C90 1000mm f11 Maksutov com uma Nikon F.
O anel adaptador para esta Nikon, também é compatível com máquinas digitais.
Afocal photography through Celestron XLT 102 telescope. Four shots of different exposure time processed with Photomatix
Aristarchus crater and Vallis Schroteri imaged from London on the 9th December 2019.
Celestron Edge HD11 scope and ASI174MM camera with 685nm IR pass filter. Colour is from a high saturation DSLR image.
A primeira Lua!
1/400
Nota: Com a velocidade maior e um pequeno ajuste, embora mais escura, ficou com uma nitidez melhor. Quando ia tentar algo além: O muro...
Nem sabia que era Lua cheia.
Foi a oportunidade de usar realmente o Celestron fora do quarto:)
Não ajudei muito. Estava tremendo. Mas, o telescópio parece que compreendeu a situação do novato e mostrou estar em grande forma.
O local é o quintal de casa em meio a São Paulo.
O céu limpo, com algumas nuvens.
Experimentei várias velocidades.
Faltou um "tiquinho" de ajuste para uma nitidez melhor (quando percebi isto, ela já ia para baixo de um muro)
Esta foi em 1/400; ISO/ASA 1000
Câmera Nikon D90
Telescópio Celestron C90 1000mm f11 Maksutov
Tripé: Manfrotto 728B
Software: Não
Corte: Não
Crater Janssen region imaged from London on the 4th September 2019
Celestron Edge HD11 scope and ASI74MM camera
OTA: Newtonian Celestron 130 mm/f5 modified
Mount: Skywatcher Heq 5
Imaging Camera: Canon 700D astro modified
Telescope Guide: Gso 50mm
Camera Guide: QHY5L II Mono
Baader Mk III Coma Corrector
Polemaster Eletronic Polar Scope
Total Exposure: 3:00 hours (subs 300 sec)
Deep Sky Stacker: Calibration and stacking
Adobe Photoshop Cs2 : Data Processing,
Pulg-in: Hasta la vista, green, astroflat pro
PHD Guiding 2: Guide
Darks, Dark Flats, Flats and Bias apply
Serra Negra ( Bortle 4) /São Paulo/Brasil . 06/2023
Dedicada a Raul Lamoso (de los más talentosos que he visto por aquí). Gracias por pedirla!
Sacada con un Celestron Nexstar 8i, en 3 tomas.
Genova, Italy (15 Lug 2022 01:16 UT)
Planet: diameter 18.5", mag +0.5, altitude ≈ 31°
Telescope: Orange 1977 vintage Celestron C8 (203 F/10 SC)
Mount: EQ5 with ST4 hand controller (no GoTo)
Camera: QHY5III462C Color
Barlow: GSO APO 2.5x
Filter: QHY UV/IR block
Recording scale: 0.165 arcsec/pixel
Equivalent focal length ≈ 3625mm F/17.9
Image resized: +33%
Recording: SharpCap 4.0 (640x480 @ 60fps - 180 sec - RAW16)
Best 40% frames of about 10820 for each video
Alignment/Stacking: AutoStakkert! 3.1.4
Wavelets/Deconvolution: AstroSurface T3
Final Elaboration: GIMP 2.10.30
Telescopio: Celestron C8 Edge HD
Riduttore di focale: Starizona HyperStar for Celestron C 8Edge HD
Montatura:iOptron CEM60
Camera di ripresa: QHY10 CCD
Guida:Tecnosky Sharp Guide 50 mm f 3.2
Camera di guida:Starlight Xpress Lodestar X2
Filtro: IDAS LPS D1
Data: 22 Gennaio 2020 Integrazione: 2.5 ore
Pose:IDAS LPS D1: 76x120" -15C bin 1x1
Dark: 11 Bias: 55
Balcone di casa, Formigine, Modena, Italy
Trasparenza buona, inquinamento luminoso elevatissimo.
Valore max SQM misurato: 18,70
Umidità: 75%
My view from South Huntsville on August 15, 2020, just before midnight. Jupiter is prominent in Alabama skies now, easily found in the Southeastern sky during late evenings. Around 10 PM it reaches its highest point in our sky, to the South. As a Southern state, Alabama sees Jupiter rise high in our skies, affording us a view those farther to the North do not get. As a bonus, Saturn is nearby, bright, a little farther to the East. Mars rises in the East about the time Jupiter shines highest in the South; by October Mars will appear brighter in the sky than Jupiter.
Celestron EdgeHD8 telescope
Celestron Advanced VX mount.
ZWO 224MC camera
Explore Scientific 3x Focal Extender
F/30, 203.2mm aperture, 6096mm focal length
Preprocessing with PIPP
Stacking with AutoStakkert!3, best 60% of 4944 video frames used,
Registax wavelets processing applied
Final processing in Photoshop CC 2020: Image cropped to 8x10 ratio.
Feb 26, 1979 - last total solar eclipse of the 20th century.
Mary Hill Museum on the Columbia River at the Washington-Oregon border.
Slide Scan
The Moon imaged from London on the 18th January 2020.
Celestron Edge HD11 scope and Canon EOS 6D camera
Tech.details-brief: Sony Alpha 7R2 / ILCE-7Rm2 (APS-C mode)(RAW:ISO3200...64000), Celestron NexStar 4 SE(1325mm f/13) + Teleconvertor Rokinon 2x, 1/50s*7500frames(RAW mode and Video mode APS-C/4K/25fps:ISO12560 1/50s), packet RAW conversion and PiPP (for video), Autostakkert:planet,80%frames,Registax(wavelets); RAW stacking; Fork arm from Celestron NexStar 4 SE in eq.mode
Alt ~ 19°
Az ~ 222°
Local date and time of session 07.12.2018 21:30 - 22:04 (UTC+6)
The photo was shooted from a city courtyard in a relatively cold and clear night (-22°C).
Rus.: Соединение Марса и Нептуна 7 декабря 2018
Самая близкая (Марс) и самая далёкая (Нептун) к Земле планеты "сошлись" на крошечном участке неба.
Омский планетарий (vk.com/event174853487, afisha-omsk.ru/events/omskij-planetarij/13857-nabljudenie...)
заранее оповестил горожан, что 7 декабря Нептун будет всего в 2 угловых минутах от Марса (это расстояние в 16 раз меньше диаметра Луны!), что позволит наблюдать обе эти планеты в одном поле зрения при большом увеличении.
Максимальное сближение было предсказано в 20:40 местного времени (17:40 Msk).
Но я решил начать наблюдение к 19:00, когда планеты достигнут наибольшей высоты (30°).
К сожалению, небо вопреки прогнозу в это время заволокли облака. Шансов не было, и я ушёл на прогулку, во время которой ок. 20:00 обнаружил, что на Юге открылось чистое небо, в котором призывно горел ярко-красный Марс.
Примчался домой, собрал телескоп, монтировку, камеру... потом долго и безрезультатно настраивал монтировку, которая отказывалась удерживать телескоп (смазка подводит уже при температурах от -15°C) и его приходилось балансировать... найденной у детской горки картонкой (днём на ней кто-то катался, видимо;-).
Начать наблюдение удалось лишь к 21:30, когда и пик соединения был пройден и планеты уже существенно приблизились к горизонту - до 19°, рискуя "зацепиться" за крыши городских домов и утонуть в засветке фонарей...
Но видимое расстояние между планетами было всё ещё очень мало - на фото оцениваю его 0°3'7.69".
Планеты шикарно смотрелись в окуляре: яркий красный жёсткий и большой Марс и серо-голубой крошечный и немного аморфный Нептун.
Немного мешала дымка, зато у Марса она переотражениями лучей образовала роскошную "корону" (на фото убрал и теперь начинаю жалеть, да и Марс мне не разрешал ведь раскоронацию;-). Нептун и с дымкой вёл себя иначе - вместо короны в отражениях дымки иногда демонстрировал тоненькие одиночные лучи...
Две противоположности на крошечном участке неба.
Сфотографировать оказалось сложнее - даже увеличив светочувствительность так, что грязное городское небо превращалось в шумную почти осязаемую субстанцию, Нептун лишь едва начинал появляться... а Марс в это время терял свой цвет и превращался в белый шар, засвечивающий вокруг себя своей "короной" огромную часть неба.
Причём на хлипкой монтировке, которую едва-едва удалось стабилизировать, я был ограничен в диапазоне выдержек.
Пришлось фотографировать с разными параметрами (мультиэкспозиция) и даже прибегнуть к серийному сложению видеокадров (более 7,500 - личный рекорд;-).
В итоге эта невзрачная фоточка обошлась довольно дорого по затратам времени...
Зато момент свидания двух планет был запечатлён и у меня появилась "междупланетная лав-стори" ;-)
О героях фото (сравнить их размеры можно по ссылке ru.wikipedia.org/wiki/%D0%A1%D0%BE%D0%BB%D0%BD%D0%B5%D1%8...):
- Марс (назван мною ближайшей планетой;-)
Почитать дополнительно: ru.wikipedia.org/wiki/%D0%9C%D0%B0%D1%80%D1%81
Марс - четвёртая по удалённости от Солнца (за Землёй) и седьмая по размерам планета Солнечной системы; масса планеты составляет 10,7 % массы Земли.
Зато Марс настолько ближе к нам, что на фото выглядит крупнее.
А был ещё ближе - 27 июля 2018, такое противостояние наших планет называют Великим и повторится оно лишь 15 сентября 2035.
Сейчас Марс стремительно удаляется от Земли, но, в любом случае, его орбита - "соседняя" ;-)
Звёздная величина в момент фото 0.08m
- Нептун
Почитать дополнительно: ru.wikipedia.org/wiki/%D0%9D%D0%B5%D0%BF%D1%82%D1%83%D0%BD
Нептун - восьмая и самая дальняя от Земли планета Солнечной системы. Нептун также является четвёртой по диаметру и третьей по массе планетой. Масса Нептуна в 17,2 раза, а диаметр экватора в 3,9 раза больше земных.
Но огромное расстояние превратило этого гиганта в крошечную бусинку, едва различимую невооружённым глазом даже на загородном небе
Звёздная величина в момент фото 7.89m
Глаз человека - совершенный инструмент, позволяет легко видеть оба объекта столь разной яркости одновременно и уверенно различать их цвет.
Фотокамера в этом меня подвела, пришлось применять мультиэкспозицию и сводить на одном изображении варианты с существенно разными параметрами съёмки.
Старался приблизить картинку к тому, что видел. Вот только Марс "раскороновал", а у Нептуна отколол кусок с целый континент (присмотритесь внизу планеты;-). Впрочем, "отколотый" кусок повторился на ряде фото серии и, кроме того, почти совпал с положением спутника Тритон... но это не может быть Тритон, так как он просто не доступен в мой телескопчик, особенно при заданных выдержках (звёздная величина 14.08m).
Визуально в окуляр я никакого Тритона не видел. Тем не менее, камера "что-то там зафиксировала". А я решил сохранить ;-)
Фотографы они такие - сами решают, у кого корону отнять, а кому континент притаранить ;-)
Telescopio : Celestron C8 Edge HD
Barlow: Televue Powermate 2.5X
Lunghezza focale: 5080 mm
Camere di ripresa: ZWO ASI 224 MC
Montatura: iOptron CEM60
Filtro: Baader Planetarium UV/IR Cut
Data: 04 Settembre 2020 Ore: 01:51 Tempo Locale
Pose: 956 sommate su 5022 riprese a 124 fotogrammi al secondo
Seeing: 3 Trasparenza: 8
OTA: Newtonian Celestron 130 mm/f5 modified
Mount: Skywatcher Heq 5
Imaging Camera: Canon 700D astro modified
Telescope Guide: Gso 50mm
Camera Guide: QHY5L II Mono
Baader Mk III Coma Corrector
Polemaster Eletronic Polar Scope
Total Exposure: 02:15 hours (subs 300 sec)
Deep Sky Stacker: Calibration and stacking
Adobe Photoshop Cs2 : Data Processing,
Pulg-in: Hasta la vista, green, astroflat pro
PHD Guiding 2: Guide
Darks, Dark Flats, Flats and Bias apply
Serra Negra ( Bortle 4) /São Paulo/Brasil . 12/2019
25 x 5 minute exposures @ ISO800, with 7 x 30 second exposures, unguided for the core.
Using a Celestron 80ED with Canon 450d.
Guided with PHD, using a Konus Vista 80s and a QHY5v.
Mounted on an HEQ5
I'm really very pleased with this, and it's possibly my best Deep Sky image to date.
Telescopio: Celestron C8 Edge HD
Barlow APO 1.5X aplanatica
Filtri: Optolong Blue CCD 50,8 mm
Lunghezza focale: 3048 mm
Camere di ripresa: ZWO ASI 174 mono Cool
Montatura: iOptron CEM60
Data: 24 Febbraio 2021 Ore: 19:10 Tempo Locale
Pose: 543 sommate su 2.010 riprese a 75 fotogrammi al secondo
Seeing: 3 Antoniadi Trasparenza del cielo 7
M-57, taken Celestron C6-N, 20mm. eyepiece, ISO400, 15" of exposure, and 3x optical zoom. My first photo of deep sky. The focus is terribly difficult.
ENGLISH
This is been from my second astrophotographic session. I have learned to connect and to disconnect the camera quickly, and already have shortened the time of framing. For the next one I will try to improve the focusing.
***
The Ring Nebula (also known as the Messier 57 or NGC 6720) is located in the constellation Lyra. It is among the most well known and recognizable examples of a planetary nebula. The nebula is located at 0.7 kpc (2300 light-years) from Earth and was discovered by Antoine Darquier de Pellepoix in 1779. The nebula has a visual magnitude of 8.8, and a photographic magnitude of 9.7. It is expanding at a rate of approximately 1 arcsecond per century (corresponding to 20–30 km/s). Its mass is approximately 1.2 solar mass.
M57 is illuminated by a central white dwarf of 14.7 visual magnitude. This star was discovered in 1800 by Count Friedrich von Hahn.
M57 is best seen through at least an 8-inch telescope, but even a 3-inch telescope will show the ring. Larger instruments will show a few darker zones on the eastern and western edges of the ring, and some faint nebulosity inside the disk.
More info: en.wikipedia.org/wiki/Ring_nebula
----------------------------
CASTELLANO
Esto es resultado de mi segunda sesión fotográfica. Ya he aprendido a acoplar y desacoplar la cámara con rapidez, y he acortado el tiempo de encuadre. Para la próxima intentaré mejorar el enfoque.
***
La Nebulosa del Anillo (también conocida como Objeto Messier 57, Messier 57, M57 o NGC 6720) es una nebulosa planetaria prototípica situada en la constelación de Lyra. Se trata de una de las nebulosas más conocidas utilizada frecuentemente como ejemplo de este tipo de objetos astronómicos. Está situada a 0,7 kpc (2.300 años luz) de la Tierra y fue descubierta por Antoine Darquier de Pellepoix en 1779.
Su magnitud conjunta en banda V (filtro verde) es igual a la 8.80.
De su velocidad radial, -19.2 km/s, se deduce que se aproxima a la Tierra a más de 69 120 km/h: esta velocidad está originada por la combinación de la velocidad orbital del Sol alrededor del núcleo de la Vía Láctea, además de la velocidad propia de la Tierra.
M57 está iluminada por una enana blanca en su centro de magnitud visual 15,8.
The Moon shot from London just after 5am on the 21st September 2019
Celestron Edge HD11 scope and Canon EOS 6D camera
I always find astrophotography refreshing - a good reminder of how insignificant we truly are, and that we shouldn't take minutia too seriously.
1.5 hours of integration from my Bortle 3 backyard in southern Arizona.
Celestron C8 with 0.63x Focal Reducer
ZWO asi533mc pro
ZWO AM5 Mount, with 120mm guide camera, using the AsiAir Plus
Edited in PixInsight and Lightroom
Composite of images showing the change in the angle of Saturn’s rings as viewed from Earth. Shots were taken every 2 years from 2016 until 2022 and this year (2023). Celestron Edge HD11 scope, Televue 2.5x Powermate and ZWO ASI174MM & ASI224MC camera
OTA: Newtonian Celestron 130 mm/f5 modified
Mount: Skywatcher Heq 5
Imaging Camera: Canon 700D astro modified
Telescope Guide: Gso 50mm
Camera Guide: QHY5L II Mono
Baader Mk III Coma Corrector
Polemaster Eletronic Polar Scope
Total Exposure: 3:00 hours (subs 300 sec)
Deep Sky Stacker: Calibration and stacking
Adobe Photoshop Cs2 : Data Processing,
Pulg-in: Hasta la vista, green, astroflat pro
PHD Guiding 2: Guide
Darks, Dark Flats, Flats and Bias apply
Serra Negra ( Bortle 4) /São Paulo/Brasil . 05/2022
The Moon imaged from London on the 6th January 2020.
Celestron Edge HD11 scope and Canon EOS 6D camera
Saturn imaged under hazy conditions just after midnight on the 6th September.
Celestron Edge HD 11 scope, Televue 2.5x Powermate & ZWO ASI224MC camera with ADC
Single shot image using a Celestron Nexstar 6SE with f-6.3 focal reducer, Eclipsmart solar filter and Canon 600d and enhanced in Lightroom.
OTA: Newtonian Celestron 130 mm/f5 modified
Mount: Skywatcher Heq 5
Imaging Camera: Canon 700D astro modified
Telescope Guide: Gso 50mm
Camera Guide: QHY5L II Mono
Baader Mk III Coma Corrector
Polemaster Eletronic Polar Scope
Total Exposure: 2:30 hours (subs 300 sec)
Deep Sky Stacker: Calibration and stacking of frames
Adobe Photoshop Cs2 : Data Processing, Plug-in: Hasta la vista, green, astroflat pro
PHD Guiding 2: Guide
Darks, Dark Flats, Flats and Bias apply
Serra Negra ( Bortle 4) /São Paulo/Brasil . may/2021
This galaxy lies around 21 million light years away!
Another test with the new setup. 6*5 minute exposures. Nicely, the stars are more round than my last attempt so the autoguiding is better. Just need to get longer subs on this but it's setting in the West earlier and earlier, so may have to choose another target. Ignore the sh*tty processing - this is just for testing.
Image Details:
•Imaging Scope: Celestron C8 8” Schmidt-Cassegrain FL2000mm @ F6.3
•Imaging Camera: Nikon D7000
•Guiding Scope: William Optics 66mm Petzval Refractor
•Guiding Camera: Orion Starshoot Autoguider
•Guiding Mount: Celestron CGEM
•Guiding Software: PHD2
•Exposures: 5*4 minutes at ISO800
•Stacked in Deep Sky Stacker
•Tweaked in LightRoom - Clarity, Blacks, Vibrancy, Saturation, DeNoise
Planet Venus shot from London on 8th May 2020. Now displaying a beautiful crescent phase.
Celestron Edge HD11 & ASI174mm camera
Taken with Celestron telescope attached to the Canon EOS camera body.
No effects, no major post processing, just the natural telescope blur like effect.
For the gear setup see the blog post:
garmonpictures.blogspot.com/2014/07/bee-eater-and-his-pra...
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Celestron C8 Edge HD, TMB 1.8x barlow, ASI290MM. Seeing was less ideal than earlier in the session (images without barlow), but still decent.
2 Cameras, 2 Telescopes
Setup#1
Camera: QHY163M
Telescope: 11" Celestron Edge HD w/V4 Hyperstar
Mount: Orion HDX-110
Optolong LUM filter: 50x30sec
Setup#2
Camera:QHY128C
Telescope: Astrotech AT65EDQ
Mount: Piggybacked on Setup#1
8x300sec
Original image: flic.kr/p/2jeiJdi
Images processed in PixInsight, combined and tweeked in PS2020. Qhy 128 OSC data cropped and combined with QHY163M Luminance data
Telescope: Celestron C9.25 Edge HD @ 4037 mm
Focal ratio: f17
Camera: ZWO ASI462MC
FPS (avg.)=122
Shutter=8.159ms
Gain=315 (52%)
Resolution: 0.1482 arcsec/pixel
Stack: 25% best of 22050 frames (5512 frames)
Barlow: Explore Scientific 1.25" 2x Focal Extender
Atmospheric Dispersion Corrector: ZWO ADC
Focuser: MicroTouch Focuser
Capturing software: FireCapture 2.7
Mount: iOptron CEM60
Processing: Autostakkert! (30%), RegiStax, PixInsight
Date: 21-Ago-2021
Local Time: 9:49 pm
Universal Time (UT): 2:49 am
Location: Bogotá, Colombia