Image Description:

Is Saturn your favourite?
It was looking a bit pretty on a chilly morning from the Blue Mountains. Nice conditions for this capture, and it's accompanied by four moons (l-r: Mimas, Dione, Tethys, Enceladus).

C14, ASI290MM, 15mins with RGB filters.


Copyright: Andy Casely

Image Details:
The Coma cluster of galaxies. Deep exposure of 36 hours with Takahashi Epsilon 180ED and ZWO ASI2600MC. Best seen full size on Flickr. There are thousands of galaxies in the image, a lot more than there are foreground stars of our galaxy. Faintest object I could identify has a V magnitude of 22.8.

Copyright: Dominique Dierick

Image Description and Details :

NGC 2170, LRGB 300:300:300:300, total 20 hours

A dusty reflection nebula and stellar nursery that formed about 6 to 10 million years ago, located at the edge of the elliptically shaped, giant star-forming molecular cloud Monoceros R2 (Mon R2), some 2,700 light-years away in the constellation of Monoceros.

Telescope : Planewave CDK 17, Camera : SBIG STXL 11002 with AOX, Tracking : Paramount ME

Location : Observatorio El Sauce, Chile
Image processing software : Pixinsight, Photoshop

Copyright:
Image captured : Martin Pugh
Image processing : Rocco Sung

On the night of May 1, two tiny comets made a close encounter in the Earth's night sky. The smaller one on the left is C/2020 T2 Palomar, while the larger one on the right is C/2020 R4 ATLAS. In fact, they were still hundreds of millions of kilometers apart but happened to appear in the same direction of the Earth's perspective. The two comets went their separate ways soon after, and it will be a long time before they meet each other again.
Location: Galaxy Remote Observatory, Kangbao, Hebei, China
Time: May 1, 2020
Telescope: SharpStar 150 2.8 HNT
Camera: QHY268C
Mount: iOptron CEM60
Guide: QHYCCD OAG-M
Guide camera: QHY5L-II-M
Frames: 139×30 seconds
Integration: 1.2 hours
Acquired by APT
Processed by PixInsight and PhotoShop

Copyright: [Steed Yu][1]

Image Description and Details :

Cederblad 111 is a blue reflection nebula in the southern constellation of Chamaeleon and is part of one of the closest dark cloud complexes to the earth at only 550 Ly distance away. Cederblad 110 is the accompanying reflection nebula in this wide field image Both are part of Chameleon I molecular cloud complex. The small, elongated, bright red objects at the center of the image are Hebrig-Haro objects (HH 49-50), which form from a collision between ionized jets of gas ejected from newly born stars and the surrounding cloud. This area of the sky is rich in dust and Ha creating new bright stars within the dusty shroud. 40 x 900s Stellarvue SV80ST - ASI6200 - AP1600 Processed entirely in Pixinsights Imaged from Obstech Observatory El Sauce, Chile

Copyright: Simon Lewis

Image Description and Details :

SHO-image of NGC 6188 - the Fighting Dragons of Ara - an emission nebula located about 4,000 light years away in the constellation Ara. The bright open cluster NGC 6193, visible to the naked eye, is responsible for a region of reflection nebulosity within NGC 6188. At the bottom you can recognize "the egg", a planetary nebula.

Image acquired with the Officina Stellare RH200 telescope and FLI ML16200 camera from Telescope Live in El Sauce Observatory, Chile.
Total exposure time 150 minutes; 5 subs of 600s with each filter. Dataset N. Szymanek.

Processing with AstroPixel Processor, Photoshop CC with AstroPanel V4.2, Astronomy Tools, Topaz Sharpen AI and Denoise Projects 3 plug-ins.


Copyright: [Jan Scheers ][1]

[1]: http://www.nachthemel.be/NGC6188.html

Image Description and Details :

The two images on the left date back to 23 June 2020 while the two on the right were made on 14 May 2021, the latter clearly highlight the presence of the nova V1405 Cas discovered on 18 March 2021 and which at the time had an approximate magnitude of 9 , 6 but in the last few days the magnitude has unexpectedly risen to about 5.2. It is hypothesized that the star that produced the nova is the eclipsing variable CzeV3217 located at a distance of about 5,500 light years from the Solar System, V1405 Cas was initially classified as a "classic nova" or the result of an explosion that occurred in a binary system consisting of a star and a white dwarf but further studies are currently underway.
In order to show more details the original frames were heavily cropped.

Images by: Luca Balestrieri Cosimelli & Nicoletta Guarniera

June 2020 image
23x360s
Skywatcher 150/750
Skywatcher AZ EQ5
Canon 200D

May 2021 image
15x300s
Skywatcher 200/800
Skywatcher AZ EQ6
SBIG STF8300C


Copyright:[Luca Balestrieri Cosimelli ][1]

Image Description and Details :

The Rutherfurd crater seems only a satellite of Clavius ​​but its relief presents a certain interest with its mountain ranges and its collapses.When the conditions are good we can at a strong focal length (13650 mm) have the impression of flying over it. Taken with à 625 mm barlow Televue 5 and QHY5III178M.



Copyright: Luc CATHALA

Image Description and Details : The western part of the Perseus molecular cloud positioned next to the southern of constellation. Is a young region of very active star formation, being one of the best-studied objects of its type and it contains star clusters that are still embedded in the molecular cloud in which they formed. This field contains many splendid nebulas, NGC1333, LBN749, LBN758, Barnard 1, B3 and B4, LDN1468
●Object: NGC1333 & IC348.
●Exposure: 20x300s (L), 8x300s (R) + 8x300s (G) + 8x300s (B) .
● Processing: PixInsight Core 1.8 (2021-May-11).
● Telescope: Takahashi FSQ-106EDX on EM-200Temma2Jr. Seletek Armadillo / Focusmax.
● Camera: Apogee U16M / AFW-50-7S. Astrodon E-Series genII filters.
● Guiding: FS-60CSV, QHY-5, PHDguiding.
● Location: Pyrenees.




Copyright: [Iñaki Lizaso ][1]

Image Description and Details :

Jones-Emberson 1, a.k.a the Headphone Nebula, is a northern planetary nebula. It is also catalogued as PK 164+31.1. It is located about 1600 light years away in Lynx. The red and green glows are mainly due to emissions from hydrogen and oxygen atoms, respectively. The nebula’s brightness is listed as magnitude 14.1, but it is relatively large, so the light is spread out and it has a very low surface brightness.

This image includes galaxies that lie millions of light years away, thousands of times further away than the nebula. Look for streaks and smudges that look obviously different from the sharper, rounder stars.

Acquisition, focusing, guiding and control of Paramount MX mount with TheSkyX. Focus with Optec DirectSync motor and controller. Automation with CCDCommander. Equipment control with PrimaLuce Labs Eagle 3 Pro computer. All pre-processing and processing in PixInsight. Acquired from my SkyShed in Guelph. Minimal moonlight, above average transparency and average or better seeing. Data acquired March 21-April 13, 2021.

Luminance and Narrowband: Sky-Watcher Esprit 150 f/7 refractor and QHY 16200-A camera with Optolong UV/IR, Ha and O3 filters
Chrominance: Takahashi FSQ-106 ED IV @ f/3.6 and QHY367C Pro one-shot colour camera with Optolong UV/IR filter
Narrowband:

Luminance: 32 x 10m = 5hr20m
Ha: 42 x 10m = 7hr00m
O3: 38 x 10m = 6hr20m
Chrominance: 159 x 5m = 13hr15m
Total: 31hr55m

Image scale 1.15 arcsec per pixel (based on Luminance and narrowband resolution)



Copyright: Ron Brecher

May Milky Way over Teide volcano, Tenerife Sony Alpha 7s Mosaic 17.5 shots 210 deg pano

Copyright: Eric Recurt

Image Description and Details :

This cycle 25 started powerfull, but this days there are not much activity. A little group of 3 subgroups are now active, so I grabbed the equipment and go to shoot it. Testing processing options, I discover a way to enhance the faculaes, so I made a dual proccesed image of the sunspot and full disk.Tube: SkyWatcher ED 72/420 with a Baader Astrosolar OD 5.0 filter.Camera: QHY 294CFilters: Zwo IR/UV cut and Baader Solar Continuum Mount: SkyWatcher AZ-GTI over a Manfrotto 055 tripod.Barlow: GSO 2.5x.



Copyright: Enol Matilla

Image Description and Details : Flame Nebula (Ngc 2024) made by Team ARO in South Portugal . This Team is composed of Francis Bozon, Jean_Luc Gangloff, Stéphane Gueyraud.The Flame Nebula extends over about 12 light years. Alnitak (Zeta Orionis), the easternmost bright star in Orion's belt, energises the nebula. The intense ultraviolet radiation from this blue supergiant ionises the hydrogen atoms in the nebula.Gas and especially dust in front of NGC 2024 absorb the light from the nebula and form the dark ribbon seen in the visible light images.These acquisitions were made with Scope Fsq 106, on Eq6 Pro and ZWO Asi 1600MM camera. The exposure times are as follows:-Ha= 201 x 180''-R = 73 x 150 ''-V = 92 x 120 ''-B= 94 x 120 ''That is a total time of about 19.15 hours.

Copyright: Francis Bozon / Team Aro

M83 is a barred spiral galaxy located 15.21 million light years from Earth in the southern constellation Hydra. With a diameter of about 55,000 light years, it is roughly half the size of the Milky Way. M83 is one of the nearest and brightest barred spirals in the sky.
One interesting feature of M83 is the high number of supernova's observed during the last century.
Newer generations of stars in M83 form mainly in clusters on the edges of the dark, spiraling dust lanes. These bright, young stellar groupings are only a few million years old and produce massive amounts of ultraviolet light. That light is absorbed by the surrounding diffuse gas clouds, causing them to glow in pinkish hydrogen light.
Imaged in LRGB and H alpha on our CDK 1000 at El Sauce (Obstech) in the Atacama Desert in Chile.
Image Processing: Roberto Colombari and Mike Selby
System control: Voyager by Leonardo Orazi


COPYRIGHT: [Mike Shelby][1]

Image Description and Details :

This is my first +20h long exposure during my first year of astrophotography. 270*300s of exposures in HA and OIII.
Equipment used: Nikon 200mm f2 lens, Chroma 3nm Ha+OIII filters, Asi1600mm camera and NEQ6 mount.
Location: Finland.

Copyright: Jarkko Järvinen

Image Description and Details :

We are glad to propose you this beautiful picture of Abell 35 . It was taken with a Planewave CDK12.5 and a QHY600 M camera in Chile during several nights of january and february 2021. The resulting image is a mix of RGB band images for the stars and HO images for the nebula itself.As you are probably aware, Abell 35 still remains considered as PN on SIMBAD but Jacoby had already raised questions about its true nature as early as 1981. Recent studies (after Frew and Parker, PASA, 27, 129, 2010) conclude that the nebula is a Stromgren sphere in the ambient ISM, ionized by a hot DAO white dwarf companion of BD – 22º 3467 which has recently evolved from the PN phase. The system produces a strong wind, probably from the fast, rotating subgiant which interacts with the inner zone of the emission nebula to produce a dramatic parabolic bow-shock aournd BD – 22º 3467 that is strongly visible in the OIII narrowband datas.



Copyright: Team Astrochile, Jean-Philippe Cazard & Jean-Brice Gayet

Image Description and Details :

The image displays the angular size difference between a "super" moon and a "micro" moon. The micro moon is the Cold Moon of 2020 (captured on 30th December 2020) and the super moon is the Pink Moon of 2021 (captured on 27th April 2021). The super moon gets almost 10% bigger in the night sky due to its closer approach to Earth.Gear: Nikon D5600, Sigma 150-600cPost-processing: PIPP, Autostakkert, Adobe Camera Raw, PhotoshopCapture Date: 30th December 2020 and 27th April 2021Location: Kolkata, India



Copyright: Soumyadeep Mukherjee

Image Description and Details :

12.5" f/9 Quasar Ritchey Chretien, SBIG STL11000, Losmandy Tita9
Frames: Red: 10x600", Green: 9x600", Blue: 21x60", Lum: 74x600", total exposure: 16.1 horas

This richly detailed shows the star formation region Gum 15. This little-known object is located in the constellation of Vela (The Sails), some 3000 light-years from Earth. The glowing cloud is a stunning example of an HII region.

Copyright: Insight Observatory (Franck Jobard by Deep Sky Chile) / Ruben Barbosa

NGC 3199 is an emission nebula in the constellation Carina. It is commonly known as the Banana Nebula and was discovered in 1826

Copyright: Albert Barr

Telescope / Mount / Guiding

ASA 10" Astrograph, ASA 3" Wynne-Corrector (focal length 910mm)
ASA DDM60, no guiding

Camera / Exposure

Moravian G3-16200, Astrodon filters

Lum 74 x 10min, R 24 x 5min bin2x2, G 24 x 5min bin2x2, B 27 x 5min bin2x2


Total Exposure time: 18h 35min

Processing

PixInsight, Fitswork, Photoshop

Notes

NGC 3642 is a spiral galaxy with an active galaxy core in constellation Ursa Major, about 75 Million light years away from our Milky Way. The galaxie belongs to the NGC 3642 group (also known as NGC 3610 group), a galaxy group that also includes the elliptical galaxies NGC 3610 and the lenticular galaxy NGC 3619.
The elliptical galaxy NGC 3613 and the barred spiral galaxy NGC 3625 are part of the NGC 3613 galaxy group. These two galaxy groups are considered associated.

Some of the galaxies, especially NGC 3619, seem to have one ore more tidal streams.

Copyright: Thomas Henne