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春を通り越して早く梅雨の手前までゆきたい。
雨粒の音と銀糸のような雨が好きだから。
こんな雨粒おちる古道具屋で店番したい。
今日はFLFよ！
anhelo@FLF Feb.2 / M46 - misty London morning
details ▶︎
www.anhelo.style/blogger/2018-02-02-fifty_linden_fridays
D-LAB gramophone
d-lab mainstore
umbrella
*NAMINOKE*Rainy-day Aquarium
Celestron C11 at f7.
Canon 60D Ha modified @ ISO 1600
Imaged from suburbia through a IDAS Light pollution LPS-P2 2.00"
45x60 sec with dark and bias frames added.
Processed in APP finished off in LR.
Tracked on a Losmandy G11 mount with no guiding.
M46
Takahashi TOA-150
Camera: FLI ML16200
Filter: Chroma L,R,G,B
Focuser: FLI Atlas
Focal Length: 1100mm
Focal Ratio: f/5.0
Mount: A-P 1600GTO-AE
Location: Deep Sky West, Chile
10,5h of LRGB data, combination in PixInsight done:
L: 3 x 600sec
R: 28 x 600sec
G: 11 x 600sec
B: 21 x 600sec
Messier 46-47 + NGC 2423 + NGC 2425 + NGC 2438
80ED + ASI1600MC + IrCut. 60x60s (Stellarmate).
Traitement SIRIL et Photoshop.
M46
Takahashi TOA-150
Camera: FLI ML16200
Filter: Chroma L,R,G,B
Focuser: FLI Atlas
Focal Length: 1100mm
Focal Ratio: f/5.0
Mount: A-P 1600GTO-AE
Location: Deep Sky West, Chile
10,5h of LRGB data, combination in PixInsight done:
L: 3 x 600sec
R: 28 x 600sec
G: 11 x 600sec
B: 21 x 600sec
M46, NGC 2423, M47 and NGC 2425 open clusters
Credit: Giuseppe Donatiello
Image in which there are four clusters (M46 on the left, NGC 2423 on the top right, M47 on the right, NGC 2425 on the bottom towards the center) and two small planetary nebulae, NGC 2438 and PN M 1-18 recognizable by its small red disk.
Messier 46 (M46) or NGC 2437, is an open cluster of stars in Puppis constellation at about 5,000 light-years.
The planetary nebula NGC 2438 appears on its northern edge, but it is unrelated with the cluster.
Messier 47 (M47) or NGC 2422, is an open cluster in Puppis at about 1.600 light-years.
NGC 2423 It is another cluster to the north of M47 at about 2,500 light-years.
NGC 2425 (to the southeast) is further away and smaller (5 arcmin) with an age of 2.2 Gy.
Cross-stack 300mm array + 110/250mm astrograph
C/2019 U6 (Lemmon) against the rich Milky Way starfields in Puppis. Lots of open clusters in this field, including M46 (with its planetary nebula NGC2438), M47, NGC2423 and Mel 17.
Image is 23 x 20 sec with a Canon 6D and 70-200mm telephoto @ 200mm, f/5 and 3200 iso, on a Star Adventurer Mini tracker.
Voici un troisième oiseau que je désire partagé provenant de mon premier voyage dans cette forêt enchantée. Ce n'est que la deuxième fois que j'ai l'occasion de voir cette sittelle colorée de si près - la première fois au jardin botanique de Montréal.
Je remercie deux amis photographes de la région de Québec: François Poitras et Christian Drolet qui ont tous les deux étés très généreux de leurs conseils.
Explore 3/30/18 | M46
located on M46 just east of M53
this print is for sale at: pixels.com/featured/barn-on-m46-tom-clark.html
215c 8 - _TAC6702 - ps
The M46 was designed to fight in the Korean War. It could handle Korea's mountainous terrain and pivot through narrow attack routes. The main gun could penetrate the armor of North Korea's tanks. It was also deployed as an artillery weapon. This tank's "Tiger" paint scheme reflects the markings of the 6th Tank Battalion, 24th Division. ~~ (Weight: 48.5 tons, Crew: 5, Main Armament: 90mm gun, Top Speed: 30mph, Armor Thickness: .5"-4.5", Number Produced: 2,015)
NGC 2451 (right) and NGC 2477 (left) are a gorgeous couple of clusters in the costellation of Puppis. NGC 2451 is far closer and sparser compared to his compact neighbor and has around 40 stars well dispersed with its brightest star being c puppis, a yellowish giant of magnitude 3,6. The cluster was discovered by Giovanni Batista Hodierna in 1654. Only in recent years it was confirmed that NGC 2451 was actually two open clusters that lie along the same line of sight, labeled NGC 2451A and NGC 2451B, located at distances of 600 and 1,200 light-years respectively.
NGC 2477 is a glorious open cluster grouping over 300 menmbers in an area almost as extensive as the full Moon. It has been called "one of the top open clusters in the sky", like a highly resolved globular cluster without the dense center characteristic of globular clusters. Although it is smaller than M46 (also an open cluster in Puppis), it is richer and more compact. It was discovered by Abbé Lacaille in 1751.
The sky background is filled with faint Hydrogen emission of the GUM Nebula, giving the whole area a nice contrast.
Named after Colin Gum, a late Australian astronomer, the Gum Nebula is an huge emission region that covers over 40° of the sky. It is believed to be a still expanding remnant (or remnants) of one, or more, supernovae that exploded millions of years ago.
Apo TEC140 (140/f7.2) - FLI Proline 16803 - 2 panels mosaic, each panel Ha (300m) L (170m) R (90m) G (90m) B (90m) - Warrumbungle Observatory, Coonabarabran, NSW, Australia
If you would like to see larger sizes of this image please visit my homepage at www.glitteringlights.com
Image taken with a SkyWatcher 70mm SK707AZ2, using a super 25mm lens (28x).
Also known as NGC 2437, it lies at Puppis (The Stern) constellation.
Afocal, with Xiaomi Redmi 7A
Edited with MS Picture Manager, and Photofiltre.
Image with E180 and Asi 71 MC; the part of M46 has the contribution of my previous image with higher focal lenght.
Through binoculars, one looks like the ghost of the other. Taken in a parking lot in a very light-polluted area because if star clusters won't make it through the light, what will.
1 stack of 95 30s images, Canon 800D at ISO 800, Canon 400mm f5.6 lens at f6.3, iOptron Skyguider Pro tracker. 100 darks, 120 biases. Processed in PixInsight
Three open star clusters are seen here in the slightly southern constellation Puppis, east of the bright star Sirius. To the lower left is Messier 46 or M46, 5000 light years away. M46 has about 500 stars estimated to be about 250+ million years old. The planetary nebula NGC 2438 lies on the northeast edge of M46 (about the 11 o’clock position in the image) but is most likely not part of the cluster.
Just one degree west-northwest of M46 (to the right in the image) lies another open star cluster Messier 47 or M47. M47 is much younger in age, about 78 million years old and is 1600 light years distant. There are also about 500 stars, mostly high temperature giant blue stars, reflecting the cluster’s young age, as well as some red giants.
NGC 2423 is the open cluster just above M47 in the image and is much closer to us. It contains several red giant stars, at least one of which has an orbiting planet discovered in 2007. The distance to that system is about 2500 light years.
Capture info:
Location: Orion’s Belt Remote Observatory, Mayhill NM
Telescope: Takahashi FSQ 106N
Camera: SBIG STXL 16200
Mount: Paramount MX+
Data: RGB 3,2,2.5 hours
Processing: Pixinsight 1.8.8.7
Didn't quite do the processing right - still some strange background gradients I haven't quite managed to remove
27 lights, Canon 800D at ISO 800, Samyang 16mm at f2.8, 1 minute exposures, Omegon Lx2 tracking mount. 30 darks, 120 biases. Processed in PixInsight as below
*****Linear processing
*** Integration:
lightvortexastronomy tutorial (www.lightvortexastronomy.com/tutorial-pre-processing-cali...),
(15*(1-(FWHM-FWHMMin)/(FWHMMax-FWHMMin)) + 15*(1-(Eccentricity-EccentricityMin)/(EccentricityMax-EccentricityMin)) + 20*(SNRWeight-SNRWeightMin)/(SNRWeightMax-SNRWeightMin))+50 - use #775 as ref
*** Crop
*** Background extraction:
DBE tolerance 3, no points placed on the Milky Way
***Deconvolution
Created star mask for larger stars - large scale structure 2, small scale 1, noise threshold 0.1, scale 6,
Extracted luminance, STF autostretched, then histod shadows 0.2 midtones 0.28 highs 1 to get a range mask
Deconvolve with range mask on, 80 interations, custom PSF, dark 0.01 bright 0.004, local deringing with star mask, wavelet regularization
*** Color calibration
SNCR applied with range mask on (inverted) to protect nebulas
Background neutralization
Color calibration
*** Star reduction (for small and mid stars)
Small star mask - noise 0.15, scale 4, small scale 3 comp 1, smoothness 8, binarize, midtones = 0.02
Range mask from that, 0.05-1
Apply, erosion operator 4 iterations 0.15
*** Linear noise reduction
jonrista.com/the-astrophotographers-guide/pixinsights/eff...
*TGV - small noise
Created TGV masks - extracted luminosity, standard stretch (tgv_luma_mask), curved it with black point at ~0.2 and white at ~0.5, moved histogram point to middle (tgv_mask)
apply tgv mask inverted to the image, give luma mask as local support
TGV chroma str 7 edge protection 2E-4 smoothness 2 iterations 500
TGV luma str 5 edge protection 1E-5 smoothness 2 iterations 500
*MMT - larger noise and TGV artifacts
Created MMT mask - extract luminosity, standard stretch, move histogram point to 75%, apply low range -0.5. Apply inverted
MMT mask - 8 layers, threshold 10 10 7 5 5 2.5 2 2 on rgb
*****Nonlinear
***Initial stretch
*Autostretch, apply to hist
*Create full star mask, max(star_mask_large, star_mask_small)
* HDR transform, 8 layers, B3 spline, star mask applied inverted, preserve hue, lightness mask
***MLT stretch
**Initial
* created a new multiscale linear transform, kept 4 layers using linear interpolation
* diffed from original image to create a "blurred" version of original image
* extracted luminance from original, used as mask on blurred version
* used curves to create s shape in luminance and saturation, inflection 3/4 up
* pixelmath sum the 3, rescaled, back to original image
**Second
* new multiscale linear transform, keep 5 layers
* diff from original
* extract luminance from blurred image, to use as a mask
* masked blurred image with its own luminance, gave it s-shaped RGB curve, slight boost in luminosity, big boost in saturation
* pixelmath sum the 3, rescaled, back to original image
**Third
* new multiscale linear transform, keep 8 layers
* diff from original
* extract luminance from blurred image, to use as a mask, hist stretch it (multi_8_substracted_L)
* luminosity increase (1 curve), saturation (even more)
* pixelmath sum the 3, rescaled, back to original image
*** Darken
* DarkStructureEnhancer, 8 layers, 0.7, 3x3
* DarkStructureEnhancer, 8 layers, 0.7, 5x5
*** Color saturation
* bumped reds strongly, green-blues less strong
*** Sharpen
* Sharpen with multiscale linear transform, bias layers 2-6 (0.05, 0.05, 0.025, 0.012, 0.006)
*** Final crop and resize
* rotate 90* clockwise
* crop bottom (slightly weird corner)
* Rescale back to normal
**** Not used
**Create star and bright nebulas mask
* substract star_mask from luma to get a nebula mask
* exagerrate hugely with curve to get high contrast - RGB line going from 25% of horizontal to 50%
* apply said exagerration to stars too
* sum them up in pixelmath, save as star_nebula_mask
* new multiscale linear transform, keep 5 layers
* diff from original
* apply inverted stars_nebula_mask
* Local histogram equalization, kernel 200, contrast 1.5
* Local histogram equalization, kernel 400, contrast 1.5
* Saturate with curves (slight s-shape but mostly nuke
Two splendors of the sky in Canis Major, M46 with the puff of smoke of planetary nebula NGC 2438. There is tiny "clone" of this planetary a bit further north. Can you spot it? It is PK231+ 4.1.
Other open starclusters in this image are NGC2425 and NGC 2414.
Takahashi Epsilon 180ED, 6 hours exposure under average to bad seeing.
NGC 2438 is a planetary nebula found inside the open cluster M46 in the constellation Puppis. I remember the first time I imaged M46 and spotted this fuzzy planetary nebula, I thought I discovered something new! My star atlas, at the time, did not show this NGC object. This planetary nebula is actually not part of the open cluster, it just appears in the same line of sight. It’s estimated distance is 3,000 light years away and has a magnitude of 10.8.
Tech Specs: This image is composed of 40 x 15 second images at ISO 5,000 with 5 x 15 second darks and 5 x 1/4000 second bias frames using a Meade LX90 12” telescope and Canon 6D camera mounted on a Celestron CGEM-DX mount. Imaging was done on February 18, 2017 from Weatherly, Pennsylvania.
M46, NGC2438, PK231+04.1 and NGC2425 in Puppis
Gennaio 2024/Aprile 2025
Località: San Romualdo - Ravenna
Tecnosky OWL90 con riduttore 0.8 F/4.8 (focale 432mm)
QSI583ws raffreddata -20
Avalon M-Uno - Autoguida con QHY5III 174M su Celestron OAG
Filtri Astrodon RGB GenII E-series
RGB: R 28x3min, G 56x3min, B 95x3min
Per NGC2438 aggiunto H-alpha e OIII proveniente dall'immagine ripresa con il 130/900
Acquisizione: MaximDL5 - Calibrata con Dark.
Elaborazione: Astroart9, Affinity Photo2 e Paint Shop Pro2023
M46 et M47 avec la petite nébuleuse.
ASI1600Mc + Megrez72- Flattener III. 20 poses de 180s. Traitement SIRIL et Photoshop. Gestion Stellarmate.
Those of us who travelled the old N7 over many years will have been familiar with the ruin of a castle dominating the skyline outside Portlaoise. Signs indicated that this was the Castle of Dunamaise and I often wondered at the story behind it. It's position appeared to be strategically perfect, dominating the relatively flat lands of the nearby counties, that we wondered why it had never been restored by a local landlord or robber baron. Today we have an image of a drawing/print from the Mason Collection with the title "Grose: Queen's County - Dunamase Castle ruins
Photographer: Thomas H. Mason
Collection: Mason Photographic Collection
Date: 1890 - 1910
NLI Ref: M46/21
You can also view this image, and many thousands of others, on the NLI’s catalogue at catalogue.nli.ie
Messier 46
Credit: Giuseppe Donatiello
Messier 46 (M46) or NGC 2437, is an open cluster of stars in Puppis constellation at about 5,000 light-years.
The planetary nebula NGC 2438 appears on its northern edge, but it is unrelated with the cluster.
Two Open Clusters – And a body of a dead star
This deep-sky image captures M46 and M47, two beautiful open clusters in the constellation Puppis.
Though they appear close together in the sky, they are not physically related and lie at significantly different distances.
The true highlight here is NGC 2438, a planetary nebula seemingly embedded within M46. However, spectral studies reveal that its radial velocity differs from that of the cluster stars – indicating it's merely a line-of-sight coincidence and not a true cluster member.
NGC 2438 is the remnant of a dead sun-like star that expelled its outer layers, leaving behind a white dwarf surrounded by a glowing shell of gas.
Captured under Bortle 3 skies, revealing fine detail and rich stellar fields.
Gear:
Radian61mm
ZWO ASI2600MM
Antlia RGB Filters
For a better view of M46: flic.kr/p/2psk9tn
Full blog post: www.galactic-hunter.com/post/m46-m47
Messier 46 and Messier 47 are 2 open clusters in the constellation Puppis, they’re only about 1 degree apart so they’re usually imaged together. Less famous than the “Double Cluster” in Perseus, M46 and M47 are still very interesting mostly because of what’s “hidden” within M46, a small and bright planetary nebula NGC 2438. The nebula is likely not related to the cluster but just appears to be inside it from our point of view. If you’ve got a big telescope, try imaging the nebula for a full night, it’s actually pretty cool as it has a bunch of HA expelling from it (like the Ring Nebula in very long HA exposures).
Shot with the QHY600C and SVX130!
Messier 46 (M46) is an open cluster that can be found in the constellation Puppis, to the upper left of the star Sirius in Canis Major. The cluster is fairly bright and contains about 500 stars and is about 5,400 light years away. If you close you can also spot the planetary nebula, a small ring, known as NGC 2437, while it looks like it is part of the cluster, it is actually in front of it by 2,500 light years.
Tech Specs: Sky-Watcher Esprit 120mm ED Triplet APO Refractor, Celestron CGEM-DX mount (pier mounted), ZWO ASI071MC-Pro running at -25C, 7 x 120 second exposures, GAIN 200, guided using a ZWO ASI290MC and Orion 60mm guide scope. Captured using SharpCap v3.2. Image date: January 21, 2020. Location: The Dark Side Observatory, Weatherly, PA, USA.
With the dawn of a new era in warfare, Britannia has decided to introduce a new weapon to it's infantry arsenal.
The M46 is an improvement of the outdated and flimsy McBreck Rifle of the last decade.
Firing a slightly larger 7.5x45mm round the M46 hits harder than the McBreck. It also comes standard with the option of semi-Auto or Fully-Auto fire.
The larger receiver prevents cracks around the chamber that occurred with the McBreck, And the new rubber buttpad lowers felt recoil from the larger round.
Also moving the rear sight to behind the EP allows for a longer sight distance, which in turn provides added accuracy.
When fitted with a scope, the M46 will also function as overwatch support just as the scoped McBreck did in the past.
And the lighter trigger provides a lighter trigger pull, aiding to ease of use and also to accuracy at long range.
Berliner Verkehrsbetriebe (BVG): the double-decker bus number 3515 (MAN ND323 Lion's City A39 DD, BVG Class DL09, registration B-V 3515, put into service in 2010) at Zoologischer Garten bus terminal, working a service in the city line M46 to Britz-Süd.
In maart 1997 werd door een groep Nederlanders met een rijtuig een negendaagse reis gemaakt. Het rijtuig werd op het eerste stuk na telkens 'meegegeven' met een trein en maakte zo een lange reis vanuit Utrecht met als hoofdbestemmingen Thessaloniki (Griekenland) & Constanta (Roemenië, a/d Zwarte Zee).
Zaterdagochtend 22 maart 1997 kwamen we aan in Budapest. Tegen het eind van de ochtend kwam MAV M46 022 ons ophalen en plaatste ons vooraan EC 62 'Bartok Bela' waarin het riijtuig zou meelopen tot Salzburg.