View allAll Photos Tagged c2021a1leonard
Captured remotely, on Dec 27, using the SkyGems Hakos Veloce RH200 telescope in Namibia. The blob on the left-hand side could be the start of the "Leonard Nebula"!
About this image:
Comet C/2021 A1 Leonard imaged on 28 December 2021 from South Africa.
I tried to capture as much detail in the structure of the tail as possible, which makes processing a challenge (as the comet is moving). The coma, tail and stars were processed individually, and each part aligned, stacked and combined.
The Comet has a green Coma (or head). The green colour is caused by Cyanogen (CN) and diatomic Carbon (C2), which glows in the green part of the Electromagnetic Spectrum of Light when illuminated by the Sun in space.
Technical Info:
Lights/Subs total integration time: 80 min.
2 Panels (40 min. per panel).
L-Pro = 16 x 90 sec. (per panel).
R = 10 x 30 sec. (per panel).
G = 10 x 30 sec. (per panel).
B = 10 x 30 sec. (per panel).
Dual Telescope Set-up:
William Optics Star 71 Imaging APO 350mm f/4.9 &
William Optics SpaceCat 51 APO 250mm f/4.9 - Limited Edition.
QHY163M Camera sensor cooled to -15°C.
Calibration frames: Bias, Darks and Flats.
SGP Mosaic and Framing Wizard.
PlaneWave PlateSolve 2 via SGP.
Pre-Processing and Linear workflow in PixInsight. Straton was used for star separation, and final processing was done in Photoshop.
Astrometry Info:
Center RA, Dec: 323.505, -34.040
Center RA, hms: 21h 34m 01.210s
Center Dec, dms: -34° 02' 24.584"
Size: 7.56 x 2.88 deg.
Radius: 4.046 deg.
Pixel scale: 16.2 arcsec/pixel.
Orientation: Up is 2.18 degrees E of N.
View an Annotated Sky Chart for this image.
Carl Sagan on Comets:
People's reaction to Comets in History:
Excerpt from Cosmos S01E04: "By 1910, Halley's comet returned once more. But this time, astronomers using a new tool, the spectroscope had discovered cyanogen gas in the tail of a comet. Now, cyanogen is a poison. The Earth was to pass through this poisonous tail. The fact that the gas was astonishingly, fabulously thin reassured almost nobody. For example, look at the headlines in the Los Angeles Examiner for May 9, 1910: "Say, Has That Comet 'Cyanogened' You Yet?" "Entire Human Race Due For Free Gaseous Bath. Expect High Jinks." Or take this from the San Francisco Chronicle, May 15, 1910: "Comet Comes And Husband Reforms." "Comet Parties Now Fad In New York." Amazing stuff! In 1910, people were holding comet parties, not so much to celebrate the end of the world as to make merry before it happened. There were entrepreneurs who were hawking comet pills. I think I'm gonna take one for later. And there were those who were selling gas masks to protect against the cyanogen. And comet nuttiness didn't stop in 1910." - Carl Sagan, Cosmos.
Flickr Explore:
This image is part of the Legacy Series.
Photo usage and Copyright:
Medium-resolution photograph licensed under Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Terms (CC BY-NC-ND 4.0). For High-resolution Royalty Free (RF) licensing, contact me via my site: Contact.
Martin
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Comet C/2021 A1 (Leonard) continues to brighten. Early this morning (3 December) it danced with the nice globular cluster M3. From suburban Bloomington, Indiana, with no Moonlight but plenty of light pollution.
75 frames, each 90 sec. (nearly 2 hours total exposure), processed in Astro Pixel Processor, once to register on the comet, again to register on the stars, processed in Lightroom and composited in Photoshop.
Explore Scientific 102mm f/7 refractor, ZWO ASI294MC camera, UV/IR cut fillter, iOptron CEM25P mount, ASIAir Pro controller.
Comet Leonard, Dec 22, 2021, 00:26-00:50 UT. 12x120 sec, QHY183c at -20C, gain 11, offset 50, UV/IR filter, Astro-Tech AT60ED at F/4.8. Semi-dark location (Bortle 4,) clear and above average transparency.
#CometLeonard Early on Sunday 5 Dec I was thrilled to shoot my 2nd #comet (after Neowise in 2020) – this time from my local Shanganagh Park, Shankill, Co. Dublin from 2.50 to 6.30am. With suburban light pollution - Bortle Scale 4 or 5 – I could only barely see it with binoculars. During my shoot, Leonard travelled c. 925,000km at 70km/sec, about 2.5 times distance to the Moon!
These multiple exposures were taken with a Canon 85mm f1.8 also on a Canon 80D for 3.2s, f1.8 & ISO3200. Processed in Lightroom to reduce noise, enhance the comet’s green colour and eliminate reds & oranges from light pollution.
Taken in Negev desert, 4.01.2022
Eq.: Nikon Z7 II + 70-300mm lens, Sky-Watcher Star Adventurer tracker.
Sky tracked and stacked:
22 lights, 30 darks, 50 flats
30 sec., f/5.6, ISO 4000 250mm
Blended with a foreground 240mm, (taken in the blue hour)
This photo captures a truly magical moment in the Negev desert, as the Sun set behind the rugged terrain and a celestial visitor appeared in the night sky.
The object at the centre of the image is none other than C/2021 A1 (Leonard), a comet that captured the attention of astronomers and stargazers around the world when it made its closest approach to Earth in 2021–22. Against the backdrop of the vibrant sunset, the comet appears as a bright and ethereal presence, its long tail stretching outwards like a cosmic beacon. The faint glow of the stars in the background adds to the sense of awe and wonder, creating a truly breathtaking, peaceful, otherworldly scene.
This photo has been shortlisted for the Astronomy Photographer of the Year 2023 competition (Royal Museums Greenwich, UK)
Pictures of the Comet C/2021 A1 (Leonard) on the skies of Sao Paulo at 22:43 UTC.
Xiaomi Redmi 7A, ISO100, 16s f/2,2 3,8mm.
Edited with MS Picture Manager.
Comet Leonard is the astronomical event of the year, discovered in January 2021 is located at 35 million kilometers from our planet. As an example, the moon is at 384.400 km.
In its elliptical path with our Sun, it is estimated that it visits us every 40.000 years and to observe it you have to get up early, at 4am. It is not visible to the naked eye, but it can be seen with binoculars at its closest to the earth, which is estimated for December 12.
The photos are taken with an equatorial tracking mount, similar to those found in observatories, to increase the exposure time and prevent stars from looking like traces. Different shots of 30s, 50s and 60s are shot with different ISOs which are then stacked to bring out the tail and details.
El cometa Leonard es el evento astronómico del año, descubierto en enero de 2021 se encuentra a 35 millones de kilómetros de nuestro planeta. Como ejemplo, la luna se encuentra a 384.400 km.
En su trayectoria elíptica con nuestro Sol, se calcula que nos visita cada 40.000 años y para observarlo hay que madrugar, levantase a las 4am. No es visible a simple vista, pero si se apreciara con unos prismáticos en su máximo acercamiento a la tierra, que se estima para el 12 de diciembre.
Las fotos están obtenidas con una montura de seguimiento ecuatorial, similar a las que tienen los observatorios, para aumentar el tiempo de exposición y evitar que las estrellas se vean como trazos. Se lanzan diferentes tomas de 30s, 50s y 60s con diferentes ISO que luego se apilan para resaltar la estela y los detalles.
Date: 12/07/2021
Location: Culla - Castellón (40°18'58.9"N,0°09'39.4"W,828m)
Tracker: Sky-Watcher AZ-GTi
Guiding with QHY 5L-II Mono and guidescope EZG-60
Camera Sony ILC3-A7M3 APS-C Mode
Lens Sony FE 200-600mm F5.6-6.3 G OSS
3 lights at 900mm, ISO 3200, 25seg, f6.3
11 lights at 900mm, ISO 3200, 35seg, f6.3
11 lights at 900mm, ISO 3200, 50seg, f6.3
7 lights at 900mm, ISO 6400, 30seg, f6.3
1 lights at 900mm, ISO 6400, 60seg, f6.3
15 Darks at ISO 3200 and 6400 with the exposure time of the lights.
Total time of exposition 21min. 21seg.
©2021 All rights reserved. MSB.photography
Thank all for your visit and awards.
I managed to get one more evening to image Comet Leonard up close on Jan 4th, 2022, 00:33 UT (Jan 3rd, 2022, 6:33 PM CST.)
Here in the northern hemisphere, even below 30 degrees north latitude, where I am, the comet is too low at the end of astronomical twilight to get good images, unless conditions were absolutely perfect. Its below 4 degrees now and it just gets worse as the days progress.
Soon, the comet will be setting before 6:30 PM local time and good luck trying to see it or photograph it in strong twilight before it sets.
Exposure: 11x120 sec (22 minutes)
Equipment: Equipment: Astro-Tech AT60ED at F/4.8, QHY183c at -20C cooling, Gain 11, Offset 50, UV/IR filter, Atlas EQ-G w/EQMOD
c2021a1-220104-0033UT-11x120-g11-o50-qhy183c_-20C-uvir-60f4_8-sf-v3
It appears the comet's gas and dust production has tapered off from what was seen the previous day. Hopefully it will get better instead of worse, in terms of tail length, since it still hasn't made its closest approach to the sun, yet (not till Jan 3, 2022.)
This was imaged with 1 minute exposures starting at 06:26 local time (00:26 UT) and I took over 50 shots. The first dozen were still in strong twilight, so I left them out. I used 33 of the remainder to make the image.
Equipment: Astro-Tech AT60ED at F/4.8, QHY183c astrocamera cooled to -20C, Gain 20, Offset 50, UV/IR filter, SharpCap 4.x for acquisition in FITS format. Calibrated and stacked in IRIS with dark master (10x60 sec.) PS for final post-processing,
Bortle 4/4.5 location, clear and above average transparency, 55F, light winds.
c2021a1-211222-33x60-g20-o50-qhy183c_-20C-uvir-60f4_8-sf-v2
Pictures of the Comet C/2021 A1 (Leonard) on the skies of Sao Paulo at 22:45 UTC.
Xiaomi Redmi 7A, ISO100, 16s f/2,2 3,8mm.
Edited with MS Picture Manager.
DEC 22, 2021, 00:30 UT.
Some wide-angle shots I took with a Canon T3 and a Sigma 28-70 zoom lens on a tripod combined together. This is 9x15 sec, ISO 1600, 53mm, F/4 images aligned and added up together in IRIS and then enhanced in post processing to show the long tail of the comet.
c2021a1-211221-9x15-1600-uvir-t3-53f4-v6
Jan 4th, 2022, 00:33 UT (Jan 3rd, 2022, 06:33 PM CST.) 9x120 sec, Astro-Tech AT60ED @ F/4.8, QHY183c cooled to -20C, Unity Gain.
Image rotated to portrait orientation with boosted blue channel to compensate for the very low altitude of the comet.
c2021a1-220104-0033UT-9x120-g11-o50-qhy183c_-20C-uvir-60f4_8-sf-portrait-v4
Comet C/2021 A1 Leonard after it passed Globular Star Cluster M3 on December 3rd. Image was taken with a Williams Optics GT71 and Canon T7i camera. Image composed of 8 35s exposures totaling 4min 40s. This is my first image out of the data I gathered that day and was processed kind of quickly in Deep Sky Stacker and Photoshop.Hope to try and find more good frames to integrate and try processing in Pixinsight now that I was able to transfer my license to my new laptop,
Comet Leonard (more formally known as C/2021 A1) is brightening, still not up to naked-eye visibility though unless your eyes are a lot better than mine; may be possible in binoculars. This image was made this morning before sunrise from fairly bright suburban Bloomington, Indiana (plenty of light pollution and a last quarter Moon) the tail is visible in the image for about 1 degree (about twice the Moon's diameter) and the green coma is very obvious.
84 frames, each 90 sec. (just over 2 hours total exposure), processed in Astro Pixel Processor, once to register on the comet, again to register on the stars, processed in Lightroom and composited in Photoshop.
Explore Scientific 102mm f/7 refractor, ZWO ASI294MC camera, UV/IR cut fillter, iOptron CEM25P mount, ASIAir Pro controller.
#cometleonard #astrophotography #solarsystem
Image taken with a SkyWatcher 70mm SK707AZ2, using a super 25mm lens (28x). 22:59 UTC
The incredible comet C/2021 A1 (Leonard) is a nice "gift" for this year's end at the southern skies, this one particularly on the day it's gone an outburst.
This is it depicted through a 2,75" telescope, a smartphone and lots and lots of light pollution over Sao Paulo skies.
Afocal, with Xiaomi Redmi 7A, ISO400 2s f/2,2 3,8mm.
Edited with MS Picture Manager.
Comparison of the noticeable dimming of C/2021 A1 (Leonard) one day after its outburst that made it moved from the magnitude 2-3 to magnitude 4-5.
Image taken with a SkyWatcher 70mm SK707AZ2, using a super 28mm lens.
Both afocal, with Xiaomi Redmi 7A, ISO400 2s f/2,2 3,8mm.
Edited with MS Picture Manager.
I edited both with Photofiltre and MS Picture Manager, to get more details.
We haven't had any chances to get photos of comet C/2021 A1 (Leonard) in conjunction with the globular cluster M3, but in the early hours of 2nd December we did get these pictures from Oxfordshire, UK. I'm currently unable to go out to capture data myself so Mark did that part, then I stacked and processed it myself. The first set of data was taken from 01:54 to 2:18, the second set was from 02:21 to 02:52. This image is the result of stacking the first set of data.
Taken with an Altair 8" Ritchie-Chretien + Altair Hypercam 183C.
25 x 60 seconds, binned 3x3. Stacked in Deep Sky Stacker with darks and flats, processed in Photoshop CS2, Lightroom and Fast Stone Image Viewer.
We haven't had any chances to get photos of comet C/2021 A1 (Leonard) in conjunction with the globular cluster M3, but in the early hours of 2nd December we did get these pictures from Oxfordshire, UK. I'm currently unable to go out to capture data myself so Mark did that part, then I stacked and processed it myself. The first set of data was taken from 01:54 to 2:18, the second set was from 02:21 to 02:52; this image is the result of the second set of data.
Taken with an Altair 8" Ritchie-Chretien + Altair Hypercam 183C.
22 x 60 sec, binned 3x3. Stacked in Deep Sky Stacker with darks and flats, processed in Photoshop CS2, Lightroom and Fast Stone Image Viewer.
Image taken with a SkyWatcher 70mm SK707AZ2, using a super 25mm lens (28x). 22:52 UTC
Another shot of C/2021 A1 (Leonard) one day after its outburst that made it reached the magnitude 2-3; now noticeable dimmer than last day (magnitude 4-5).
This is it depicted through a 2,75" telescope, a smartphone and lots and lots of light pollution over Sao Paulo skies.
Afocal, with Xiaomi Redmi 7A, ISO400 2s f/2,2 3,8mm.
Edited with MS Picture Manager.
Comet Leonard is the astronomical event of the year, discovered in January 2021 is located at 35 million kilometers from our planet. As an example, the moon is at 384.400 km.
In its elliptical path with our Sun, it is estimated that it visits us every 40.000 years and to observe it you have to get up early, at 4am. It is not visible to the naked eye, but it can be seen with binoculars at its closest to the earth, which is estimated for December 12.
The photos are taken with an equatorial tracking mount, similar to those found in observatories, to increase the exposure time and prevent stars from looking like traces. Different shots of 30s, 50s and 60s are shot with different ISOs which are then stacked to bring out the tail and details.
El cometa Leonard es el evento astronómico del año, descubierto en enero de 2021 se encuentra a 35 millones de kilómetros de nuestro planeta. Como ejemplo, la luna se encuentra a 384.400 km.
En su trayectoria elíptica con nuestro Sol, se calcula que nos visita cada 40.000 años y para observarlo hay que madrugar, levantase a las 4am. No es visible a simple vista, pero si se apreciara con unos prismáticos en su máximo acercamiento a la tierra, que se estima para el 12 de diciembre.
Las fotos están obtenidas con una montura de seguimiento ecuatorial, similar a las que tienen los observatorios, para aumentar el tiempo de exposición y evitar que las estrellas se vean como trazos. Se lanzan diferentes tomas de 30s, 50s y 60s con diferentes ISO que luego se apilan para resaltar la estela y los detalles.
Date: 07/12/2021
Location: Culla - Castellón (40°18'58.9"N,0°09'39.4"W,828m)
Tracker: Sky-Watcher AZ-GTi
Single shoot with camera Sony ILC3-A7M3 APS-C Mode
Lens Sony FE 100-400mm F4.5-5.6 GM OSS
ISO 10000, 20seg, f5,6
©2021 All rights reserved. MSB.photography
Thank all for your visit and awards.
Link to picture without annotations.
After missing a couple of opportunities to see comet C/2021 A1 (Leonard) in December, we went looking for it when the sky became perfectly clear in the evening of January 8, 2022. During nautical twilight the comet was already close to the southwestern horizon where the sky was still fairly bright. With the naked eye we couldn’t see Leonard or even any stars, so we pointed our camera in what we thought was the right direction and shot a series of 2.5-second exposures. Stacking and filtering the frames brought out several dozen stars with apparent magnitudes up to about 9, and right above a distant tree comet Leonard appeared as a faint speck. Sadly, that’s probably going to be my best and only picture of the object. The comet is fading, and it is also setting earlier and earlier.
Link to picture with annotations.
After missing a couple of opportunities to see comet C/2021 A1 (Leonard) in December, we went looking for it when the sky became perfectly clear in the evening of January 8, 2022. During nautical twilight the comet was already close to the southwestern horizon where the sky was still fairly bright. With the naked eye we couldn’t see Leonard or even any stars, so we pointed our camera in what we thought was the right direction and shot a series of 2.5-second exposures. Stacking and filtering the frames brought out several dozen stars with apparent magnitudes up to about 9, and right above a distant tree comet Leonard appeared as a faint speck. Sadly, that’s probably going to be my best and only picture of the object. The comet is fading, and it is also setting earlier and earlier.
After the previous session with my old OM 50mm lens shot through the power lines I moved to a better location with my newish 12-100mm zoom lens.
RAW file processed with RAW Therapee
_C181855
My first try to photograph comet C/2021 A1 (Leonard). Through a mix of light pollution and thin clouds in Richmond Hill, I created this stack of 48x30s exposures as the comet rose the morning of 2021-12-05 from about 4am-5am.
Cometa C/2021 A1 Leonard
22/Diciembre/2021
Parametros:
- 44 lights 15s iso 1600
- 30 darks
- 30 bias
- 30 flats
Software:
- Secuencia de captura canon eos utility
- Apilado en deep sky stacker
- Procesado Pixinsight y Photoshop express
Equipo:
- Telescopio skywatcher evostar 80ed f!/7.5
- Montura sky-watcher eqm-35 pro
- Canon eos rebel sl2 (200d)
Capultitlán, Toluca, Estado de México
Escala bortle: 5
#skywatcher #eqm35pro #canonsl2 #canon200d #meadelpig #meadeinstruments #astronomy #universe #univeso #cosmos #asociaciónastronómicadelvalledetoluca #comet #cometa #leonardcomet #cometaleonard #c2021a1leonard
Timelapse of comet C/2021 A1 (Leonard), Jan 3 2022, 02:00-02:18 UTC. Canon G7 X, 160x6s, ISO 640 F2.8.
Timelapse of comet C/2021 A1 (Leonard), Jan 2 2022, 01:55-02:08 UTC. Canon G7 X, 140x5s, ISO 400 F2.8. Aligned on stars with gmic. Stack flic.kr/p/2mUQfvK
Timelapse of comet C/2021 A1 (Leonard), Jan 3 2022, 02:00-02:18 UTC. Canon G7 X, 160x6s, ISO 640 F2.8. Aligned on stars with gmic.
Timelapse of comet C/2021 A1 (Leonard), Jan 2 2022, 01:55-02:08 UTC. Canon G7 X, 140x5s, ISO 400 F2.8. Stack flic.kr/p/2mUQfvK
Timelapse of comet C/2021 A1 (Leonard), Dec 19 2021, 01:40-01:50 UTC. Canon G7 X, 100x5s, ISO 125 F2.8. Aligned on stars with gmic. Composite flic.kr/p/2mRJhFc
Timelapse of comet C/2021 A1 (Leonard), Jan 1 2022, 01:50-02:00 UTC. Canon G7 X, 100x5s, ISO 125 F2.8. Aligned on stars with gmic.
Timelapse of comet C/2021 A1 (Leonard), Dec 19 2021, 01:40-01:50 UTC. Canon G7 X, 100x5s, ISO 125 F2.8. Composite flic.kr/p/2mRJhFc
O clima em Brasília me deu 2 dias de céu aberto de presente de Natal, então consegui capturar o cometa atualmente visível, C/2021 A1 Leonard! Fiz várias fotos de 1 minuto, porém como não utilizei guiagem, fiz dithering manual e a falta de um elemento de correção ótica fez com que as estrelas das bordas ficassem duplicadas quando empilhei todas as fotos. Resultado: empilhei apenas 8 frames. Obviamente, a poluição luminosa não ajudou, mas vale o registro. Foi utilizado um filtro L-Pro.
The weather in Brasilia gave me two days of clear skies as a Christmas gift, so I manage to capture the C/2021 A1 Leonard comet! I made many exposures of 1 minute, but since I haven't used guiding, I did a manual dithering. I don't have a focal reducer for this telescope, so the stars at the edge of the picture ended up duplicated when stacked. The result: I stacked only 8 frames. The light pollution didn't help at all, but it worth the record. it was used a L-Pro filter.
Canon SL2 modified, William Optics zs sd (66/388mm), ISO 1600. Eq5 Sky-watcher mount and AstroEq tracking mod. 8 Ligth Frames of 60s, 11 darks, 50 flats and 55 bias. L-Pro filter. 8 minutes total exposure. Processing on Pixinsight.
#astrophotography #astrofotografia #nightsky #astronomy #astromomia #CanonSL2 #canon200d #dslrmod #telescopio #telescope #williamoptics #zs66 #zs66sd #Eq5 #skywatcherEq5 #AstroEq #comet #cometa #DeepSkyStacker #deepsky #pixinsight #longexposure #lpro #optolonglpro #c2021a1leonard #cometaleonard2021 #astfotbr
Timelapse of comet C/2021 A1 (Leonard), Dec 31 2021, 01:45-01:55 UTC. Canon G7 X, 100x5s, ISO 125 F2.8. Aligned on stars with gmic.
Timelapse of comet C/2021 A1 (Leonard), Dec 31 2021, 01:45-01:55 UTC. Canon G7 X, 100x5s, ISO 125 F2.8.
This is Comet C/2021 A1 (Leonard), photographed on Oct 27, 2021 through a 60mm APO doublet refractor. I stacked 17 x 3 min to show the comet's motion against the star field in URSA Major.
Acquisition details on astrobin:
A hint of sunrise on the horizon: Comet Leonard seen from Old Heath in Colchester, England, on Saturday 11 December 2021. Nikon D750, Nikkor 70-200mm at 70mm, ISO1000, F2.8, 73 frames stacked in Starry Sky Stacker from 81 lights and 27 darks, processed in Photoshop and Lightroom.
This is Comet C/2021 A1 (Leonard), photographed on Nov 3, 2021 through a 60mm APO doublet refractor. I stacked 40 x 3 min to show the comet's motion against the star field in URSA major over the course of 2 hours.
Fuller details on astrobin:
Comet C/2021 A1 (Leonard), Jan 2 2022, 02:00-02:08 UTC. 90x5s aligned and stacked with gmic and gimp, with heavy contrast stretch. Exif is from a single frame. Timelapse flic.kr/p/2mURxU6