Nissan Enthusiast
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M45 die Plejaden auch Atlantiden, Atlantiaden, Siebengestirn, Taube, Sieben Schwestern oder Gluckhenne genannt. Der offene Sternhaufen mit mindestens 1200 Sternen erscheint mit einer Ausdehnung von ca. 2° etwa viermal so groß wie der Vollmond.
Aufgenommen 10/2021
William Optics Redcat 51
Skywatcher AZ-EQ5-GT
ZWO ASI 183 MC Pro
26x300sek
15 Darkframes
ASI 294 MC PRO.
72 ED Skywatcher con reductor/aplanador 0.85.
Star Adventurer 2i.
Guiado Asi 120mm Mini.
Ganancia 123/ 30 offset/ -10ºc
437x120s
L-Pro
Bortle 8.
PixInsight.
Having tried earlier to process M45 with meagre result I restarted with the same data set from TelescopeLive. About 25 hours of images from SPA-1 in Spain.
30 frames RGB @ 180 seconds and almost 150 frames LRGB @ 600 seconds.
My attempt is to maintain some true star colours and still see the glory of the Seven Sisters.
I processed using PixInsight the 30 shorter exposures with WBPP NSG Drizzle and NXT. Also added some more colours using HSV repair. This became the platform on which I added nebula structure obtained from the longer exposures. Same processing for the LRGB and in the end Starnet2. Some HDR processing and this image was then added to the base image with pixelmath.
Final adjustment in Curves Transformation and brushing up in Lightroom.
ASI 294 MC PRO.
72 ED Skywatcher con reductor/aplanador 0.85.
Star Adventurer.
Guiado Asi 120mm Mini.
Ganancia 123/ 30 offset/ -10ºc
258x120s
L-Pro
Bortle 8.
PixInsight.
M45 (The Pleiades), an open cluster in the Taurus constellation, around 444 light years from earth.
Image acquisition details:
60x120" Luminance
40x120" Red
50x120" Green
50x120" Blue
Canon 400 f2.8 III + Tc 1.4x (Focale 560mm)
Camera Zwo ASI 2600 MC
AP1100GTOAE
90 pauses de 300s (7h30 total)
Pixinsight / LightRoom
My favourite DSO - it just keeps on giving.
It's just a hazy smudge seen out of the corner of your eye. If you look directly, straight at it, it seems to vanish. But, look through binoculars and you see a mini star cluster. Look through a big telescope and it's a real wonder. Take a 72 minute exposure and you can see the dust clouds too :-)
first light with my new (and first) telescope :)
telescope: Skywatcher Esprit ED80
camera: Canon 5DMIII stock
mount: Skywatcher HEQ5Pro
guiding cam: ToupTek 224
guiding lens: 180mm
45x180sec at ISO800
20xflats
20xbias
shot on 21NOV2020 under a bortle 5+ sky at a 43% waxing moon
another windy, but crystal clear night where i only got 30% of the frames captured at least "good enough" to process them. though compared to last years image i am now able to work out more faint nebulae, you can clearly spot that last year the conditions seemed to be near perfect resulting in finer details and sharper stars than the recent one.
anyways, i love to share my progress with you :)
camera: Canon 5DIII (not modified)
telescope: Skywatcher Esprit ED80
mount: Skywatcher HEQ5Pro
guiding: 50/180 scope with ToupTek224 guiding cam and PHD2
30x240sec ISO800
fully calibrated with darks, flats, bias and darkflats (20 each)
processed with APP, Photoshop and Lightroom
shot under a bortle 5+ sky at 34% waning moon
The Pleiades (also known as the Seven Sisters, the Chioccetta or with the initials M45 in the catalog of Charles Messier) are an open cluster visible in the constellation of Taurus. This cluster, quite close (440 light years), has several stars visible to the naked eye; even if only four or five of the brightest stars are visible from city environments, twelve can already be counted from a darker place. All its components are surrounded by light reflection nebulae, especially observable in long exposure photographs taken with large telescopes.
Remarkable is that the stars of the Pleiades are really close to each other, have a common origin and are linked by gravity.
Given their distance, the stars visible between the Pleiades are much hotter than normal, and this is reflected in their color: they are blue or white giants; the cluster actually has hundreds of other stars, most of which are too distant and cold to be visible to the naked eye. The Pleiades are in fact a young cluster, with an estimated age of about 100 million years, and an expected life of only another 250 million years, as the stars are too far apart.
Because of their brilliance and proximity to each other, the brightest stars of the Pleiades have been known from antiquity: they have already been mentioned for example by Homer and Ptolemy. The Disc of Nebra, a bronze artifact from 1600 BC. found in the summer of 1999 in Nebra, Germany, it is one of the oldest known representations of the cosmos: in this disc the Pleiades are the third clearly distinguishable celestial object after the Sun and the Moon.
Since it was discovered that the stars are celestial bodies similar to the Sun, it was started to hypothesize that some stars were in some way related to each other; thanks to the study of proper motion and the scientific determination of the distances of the celestial bodies, it became clear that the Pleiades are really gravitationally bound and that they even have a common origin.
Orion 254/1000
coma corrector 0.95x
Ioptron cem70
Asi Zwo 294pro camera
97 x 240s -10 * gain 122
101 Flats
11 dark
L-pro filter
Software: SGP, Phd2, PixInsight and Photoshop
M45 The Pliedies also known as The Seven Sisters is an asterism and an open star cluster in the constellation Taurus. M45 is at a distance of about 444 light years and is the nearest star cluster to Earth.
A first run at this object with my own setup, guided exposures. Guiding graph was quite exceptional with RMS error at 0.03" then later 0.07" but I tossed away 1/2 my lights over 2 nights due to some trailing at the edges. Discovered this was due to the reducer slightly unscrewed. Some high cloud in a couple of the shots made the seeing wobbly so guiding wasn't perfect all night. Will add more data next time we have clear skies. Everything was iced up after 2 nights outside in -4 deg C temps, but dew band heaters kept going. So did I by sitting indoors and watching it all on Teamviewer! I still have a little amp glow on the right from the 700D! Updated the HC and MC on the mount too, but still not totally satisfied with the way it is performing. Everything looks pretty tight but the Alt axis is still 'rocking' slightly in its locked position.
15 x 120 sec lights @ISO 1600
15 dark
10 dark flat
10 bias
10 flats
Stacked in DSS
Processing in CS5
Equipment:
Skywatcher 120ED Esprit
0.85x reducer/field flattener
Celestron AVX
Orion 50mm SSAG guidescope
Canon 700D (unmodded)
1934 Lagonda M45, AXK 786, in the orchard during the Vintage Sports Car Club event at Prescott speed hill climb on 7th August 2021.
Skywatcher Evostar Pro 80 ED (w/.85x reducer/corrector & QHYCCD Polemaster), Skywatcher EQM-35, Nikon D3300.
135 lights x 90 s @ ISO 800, ~45 dark, ~45 flat, ~100 bias, stacked in DSS and post-processed in Photoshop.
M45 Pleiades
Canon 700d
Skywatcher 100ED
20x120s (40mins)
Processed in Pixinsight
Resolution ............... 0.797 arcsec/px
Rotation ................. -90.001 deg
Observation start time ... 2023-01-21 19:22:47 UTC
Observation end time ..... 2023-01-21 20:22:31 UTC
Focal distance ........... 556.13 mm
Pixel size ............... 2.15 um
Field of view ............ 2d 12' 3.1" x 1d 29' 23.4"
Image center ............. RA: 3 47 02.704 Dec: +24 08 27.31 ex: -0.109459 px ey: -0.000181 px
Hello folks here M45
Telescope: SharpStar 150 f2,8
Guide Scope:Evoguide
Mount : Skywatcher HEQ5
Imaging camera: ZWO 2600MC
Guiding camera: ZWO 290 MC
Filters: Lpro
Plate solving: SGpro
Imaging software: Sgpro
Guiding software: PHD2
Processing software: Pixinsight
Lpro180X60s exposure@100Gain
Integration: 3 hrs
Nikon D5300
Nikkor 55-200mm (200mm)
EXIF: f/5.6 ISO400
31x20s (10.33min)
9xdarks
Tracked: MSM
Stacked/apilado: Sequator
Edited/editado: Lightroom
Santa Perpètua de Gaià, Catalunya, España
For this image, two different setups were used. The data were taken at the same time and the same place.
We decided to shoot the same target, to combine our data.
The Omegon refractor is equipped with a riccardi reducer and therefore the exposures are shorter. There is a little more data on the 600 sec subs, but it is not that much.
Putting the data together really helped to bring out the background nebula a bit.
EQUIPMENT
My setup
Camera: SBIG STF-8300
Filter: Astrodon LRGB
Telescope: APM 107/700 apochromatic refractor w. TS flattener (700mm f/6.5)
Mount: Astro-Physics 1100 GTO
Guiding: Off axis with Starlite Xpress Lodestar X2
Daves setup
Camera: Moravian G2-8300
Filter: Astrodon LRGB
Telescope: Omegon 126/880 refractor w. Riccardi red. (660mm f/5.25)
Mount: Losmandy G11
Guiding: Off axis, Lodestar
DETAILS
Date: 27th February 2019
Location: My backyard
Exposures:
Me:
L: 5 x 600 sec, RGB: each 3 x 600 sec
Dave:
L: 7 x 300 sec, RGB each 7 x 300 sec
Total integration time: 4 hours and 40 minutes
This is a very modest photograph of M45. It's a stack of photographs that make up an integration lasting about 37 minutes (I also took calibration shots, darks, flats, and bias shots). I took the photographs with my Nikon D5600 camera and my vintage 135mm Nikon lens from the late 1970s, on the Sky-Watcher EQ3 equatorial mount. Although I took the photos at the end of December 2024, at the beginning of the Argentine summer, the very basic processing was done now. For this, I used Siril, GraXpert, and Gimp.
Daughters of the Titan Atlas and the sea nymph Pleione in Greek mythology, the Pleiades have been part of other mythologies and numerous references that permeate human culture. Among these, perhaps the most emblematic is Homer's mention of this asterism in Book XVIII of the Iliad, when Hephaestus makes a shield for Achilles in the battles of the Trojan War:
"Hizo lo primero de todo un escudo grande y fuerte, de variada labor, con triple cenefa brillante y reluciente, provisto de una abrazadera de plata. Cinco capas tenía el escudo, y en la superior grabó el dios muchas artísticas figuras, con sabia inteligencia.
Allí puso la tierra, el cielo, el mar, el sol infatigable y la luna llena; allí, las estrellas que el cielo coronan, las Pléyades, las Híades, el robusto Orión y la Osa, llamada por sobrenombre el Carro, la cual gira siempre en el mismo sitio, mira a Orión y es la única que deja de bañarse en el Océano."
Canto XVIII, La Ilíada, Homero, fragmento.
Equipment:
Celestron CGEM Mount
Canon FD 300mm f/4 L
Sony a7RIII (unmodified)
Altair 60mm Guide scope
GPCAM2 Mono Camera
Acquisition:
Taos, NM: my backyard - Bortle 3
10 x 151" for 25min and 10sec of exposure time.
10 dark frames
15 flats frames
15 bais frames
Guided
Software:
SharpCap
PHD2
DeepSkyStacker
Photoshop
My mount was polar aligned with SharpCap (what an amazing system for aligning). I'm not comfortable using my SCT as my lens yet. My solution is to piggyback my Sony a7RIII and adapted Canon FD 300mm f/4 L on a ADM dovetail rail on the top of my optical tube. I used DeepSkyStacker to combine all frames and then processed the TIFF file in Photoshop using my skill set and relying on the famous Astronomy Tools Action Set.
The Pleiades also known as the Seven Sisters, the Chioccetta or with the acronym M45 from the Charles Messier catalogue.
Acquisition Telescope
Tecnosky APO Triplet 152/1216
Acquisition Chamber
Omegon VeTec 571C latest version
Mounting
iOptron CEM120
Homemade flat box, with Ascom 50x50 dimmer
Filters
Optolong L-Pro
Optolong L-Ultimate
Accessories
Primaluce Lab SESTO SENSO 2 • WandererRotator • Electronic control of anti-condensation bands • ZWO 7x2" filter wheel • Riccardi flattener 0.75x
Software
Adobe Photoshop · Astrometric STAcking Program (ASTAP) · iOptron ASCOM Driver and Commander · Planewave Platesolve2 · Pleiades Astrophoto PixInsight · Stark Labs PHD Guiding · Stefan Berg Nighttime Imaging 'N' Astronomy (N.I.N.A. / NINA)
Guiding Telescope
Omegon 90/500
Driving Room
Asi Zwo 224MC
Second test with this setup, together with Marcello Carrieri
35 300s lights with L-Pro filter
Gain 100. Offset 500 Temp -5°
31 flats and 11 darks
1934 Lagonda M45, BPJ 317, at the Vintage Sports Car Club’s Prescott hill climb event on 7th August 2021.
SW Esprit 80/400, Player One Poseidon-C & UV/IR Cut (360x60") pour 6h au total
Pixinsight + Affinity Photo 2
M45, taken with my friend Stefano Seveso, "ARTESKY", 25 exposures of 4 minutes using ASI2600MC DUO camera and ARTEC 200EZ telescope on AM5N mount.....from Aosta Valley Western Alps....
This is a stack of 60 exposures of 30s each, i.e. 30 minutes in total, plus 15 dark-frames. The camera (Sony ILCE7 III) and the 135mm lens (SEL135F18GM) have been attached to a motorized equatorial mount (Star Adventurer) in order to compensate for earth rotation, while shooting at F2.0/ISO 1600. Stacking has been done with DeepSkyStacker, and final editing with Photoshop. Place of observation was close to Bremen, in the northern part of Germany.
M45 Pleiadi
27-29 dicembre 2024
Località: San Romualdo - Ravenna
Rifrattore Apo Tecnosky OWL90 con riduttore 0.8 F/4.8 (432mm)
Avalon M-Uno - Autoguida con QHY5III 174M su Celestron OAG
QSI583ws raffreddata -20
Filtri Astrodon GenII E-series e L Astronomik
LRGB: L 47x4min, R 55x3min, G 50x3min, B 75x3min
Acquisizione: MaximDL5 - Calibrata con Dark.
Elaborazione: Astroart9, Affinity Photo2 e Paint Shop Pro2023.
60 x 45s Luminance subs
ZWO ASI6200MM-Pro/EFW 7 x 2"
TeleVue NP101is
Losmandy G11
Processed in Pixinsight - histogram and curve stretches, and cropping only.
Rielaborazione delle Riprese di M45
Le Pleiadi ,conosciute anche come le Sette sorelle o con la sigla M45 del catalogo di Charles Messier, sono un ammasso aperto visibile nella costellazione del Toro. Questo ammasso, piuttosto vicino (440 anni luce), conta diverse stelle visibili a occhio nudo.
Riprese effettuate da Mogoro , Sardegna , Italia , il 24 ottobre 2022. SC Celestron C11 ridotto con hyperstar , focale 560 , asi 2600 mc , guida Svbony 60/240 Asi 224 mc , montatura Eq6 R. Asi Air pro , Pixinsignt
light 98 x 120
dark 29 x 120
29 flat , 29 dark flat
Spero vi piaccia!
Cieli Sereni
This is image is rendered from two nights of capture, and it is my best M45 image yet. Even so, it still does not hit the mark for me.
I did not use Blink or SubframeSelector before running WBPP, but WBPP rejected a lot of frames. To better understand why, I went back and used Blink and SfS after WBPP, and saw many frames with bad tracking. It doesn't seem that WBPP rejected enough frames, so perhaps some bad frames were included in the stack. Another potential problem that I detected is that the accepted frame counts are no where near equal across the RGB channels, which possibly accounts for the greenish cast to the smaller stars.
My thoughts about how to produce a better image than this one are to 1) cull the bad frames before processing again, 2) keep the good data and collect more data to add more signal and to balance the RGB frame counts, 3) collect some stars only (20s RGB subs) data, and 4) process stars and nebula separately before combining in the final image.
RGB composition
45:45:45x180"=R:G:BX180"
T:Takahashi FSQ 106ED @f/5.0
M: Astrophysics Mach1 GTO
C: SBIG STL 11000
G: Lodestar X2
F: Baader Planetarium RGB set
Foc: PrimaLuceLab ESATTO 4"
CPU: Eagle-S Primalucelab
Sw: Sequence Generator Pro - PHD2 - Pixinsight 1.8.8-6
L'amas des Pléiades, les Pléiades ou amas M45, est un amas ouvert d'étoiles qui s'observe depuis les deux hémisphères, dans la constellation du Taureau. Cet amas se situe à environ 444 années-lumière, un des plus "proche" de la Terre
The Pleiades, also known as the Seven Sisters, Messier 45, is an asterism and an open star cluster containing middle-aged, hot B-type stars in the north-west of the constellation Taurus. At a distance of about 444 light years, it is among the nearest star clusters to Earth.
(source: wikipedia)
= Acquisition info =
Rising Cam IMX571 color + Zenithstar73
iOptron CEM26 + iPolar
ZWO ASI224MC + WO Uniguide 120mm
NINA & PHD2
= Séances photo =
- 12 et 20 novembre 2023 (86 images, mix 120s & 180s)
- 6, 20 et 21 décembre 2023 (80 images x 180s)
= Traitement/processing =
Siril & Gimp
@Astrobox 2.0 / St-Jean-sur-Richelieu, Québec
AstroM1
(rsi5x.5)
This is my first attempt with CCD monochrome LRGB.
After 10 years of DSLR imaging, this turned out to be a challenge.
about 4 hours (1 hr per filter) LRGB at 5 minute subs with not so good tracking especially with the moon flooding the night sky
luminance was a bear to say the least.
The mount will be retired after this run with a slight upgrade sometime in the near future.....lots to learn.
SBIG STL11000
astrodon LRGB
Lodestar X2
Losmandy G11
Stellarvue SVX102T-R with flattener.
SG-Pro
PixInsight