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

Planned 2 weeks ago, 35KG equipment, about 300 KM by car, about 10 hours of time .. Everything only for 1 second!

Today's ISS Transit (April 25, 2021)

Equipment

DayStar Gemini, FlatCap

SharpStar 121SDQ

Rainbow RST-135

QHY174M

Baader D-ERF

TS 0,5 2" Reducer

Hinode Solar Guider

Software:

Sharpcap

AS3

Registax

PS, LR

Location: Einöd / Germany

Date: 04/25/2021 11:29 UTC+2

Copyright: Mehmet Ergün

The swan, Sadr region with croissant, tulip and semeis 57

6 pm 3 % moon poses

| 23.04.21 | Asi2600mc @ G100xtrem | Samyang 135 | AzEQ6 |

Copyright: Arnaud Couillard

LRGB 93 39 39 39 min.ASA 16" RC f/8ASA DDM 85ZWO ASI 6200MM Pro

Copyright: Patrick Winkler

Image Description:

M82 is also known as the Cigar Galaxy for its elongated visual appearance, it is a starburst galaxy with a superwind. In fact, through ensuing supernova explosions and powerful winds from massive stars, the burst of star formation in M82 is driving the prodigous outflow of material. The filaments extend for over 10,000 light-years. Some of the gas in the superwind, enriched in heavy elements forged in the massive stars, will eventually escape into intergalactic space. Triggered by a close encounter with nearby large galaxy M81, the furious burst of star formation in M82 should last about 100 million years or so. M82 is 12 million light-years distant, near the northern boundary of Ursa Major.

Tech card:

Imaging telescope: Teleskop Service TS 10" RC.

Imaging camera: ZWO ASI294MM-Pro.

Mount: iOptron CEM60.

Guiding camera: ZWO ASI290MM mini.

Focal reducer: Teleskop Service CCD47 0.67x reducer for RC telescopes.

Accessory: ZWO ASIAIR Pro · ZWO OAG · ZWO 8x 1.25" Filter Wheel (EFW).

Frames:

Astrodon Gen2 E-Series Tru-Balance Lum: 20x180" (gain: 120.00) -15C bin 2x2.

Astrodon Gen2 E-Series Tru-Balance Red: 20x180" (gain: 120.00) -15C bin 2x2.

Astrodon Gen2 E-Series Tru-Balance Green: 18x180" (gain: 120.00) -15C bin 2x2.

Astrodon Gen2 E-Series Tru-Balance Blue: 20x180" (gain: 120.00) -15C bin 2x2.

Chroma 3nm Ha: 10x600" (gain: 200.00) -15C bin 2x2.

Total integration: 5.6 hours.

Darks: ~50.

Flats: ~30.

Flat darks: ~30.

Avg. Moon age: 26.66 days.

Avg. Moon phase: 9.26%

Bortle Dark-Sky Scale: 4.00.

RA center: 9h 55' 52"

DEC center: +69° 40' 56"

Pixel scale: 0.707 arcsec/pixel.

Orientation: -95.583 degrees.

Field radius: 0.150 degrees.

Imaging dates: April 8, 2021, April 9, 2021.

Imaging location: Abu Dhabi desert, UAE.

Copyright: Wissam Ayoub

Image Description and Details :

Abell 33 is a spherical planetary nebula located 2700 light years away in the southern constellation of Hydra. It lies just behind the star HD 83535. The star HD 83535 is responsible for the "diamond ring" effect seen in the photograph.Image captured on my dual rig in Spain.Scopes: APM TMB LZOS 152 RefractorsCameras: QSI6120wsg8Mount: 10Micron GM2000 HPSA total of 6.4 hours image capture (OIIILRGB)

Copyright: Peter Goodhew

Image Description and Details :

Abell 21 is a planetary Nebula that was discovered and catalogued as such, in 1955, by George Abell. Abell 21 is a planetary Nebula that was discovered and catalogued as such, in 1955, by George Abell. This image was taken with narrowband filters (Ha, OIII and NII). NII was added because some planetaries have distinct NII signals. In this case, the NII emission was similar to the Ha emission. Total exposure 31h 40m. Telescope 24 inch f/6.5 reflector, located in NMSkies, Mayhill, New Mexico. Processing: CCDStack and Photoshop CC 2021.

Copyright: Josep Drudis

Image Description and Details :

My captures of Mars from my site in Afa Corsica (France) with a C8, a C11 and a Mewlon 250 Takahashi Website or Facebook Profile:
Copyright: Pedranghelu Sauveur and Nasa for the Rover

Image Description and Details :

A huge auroral show right before the aurora season ends here in the arctic circle. This image was taken in Salla, Finland with Sony A7S and Sigma art 20mm f1.4. The hill on the picture is 478 meters tall sallatunturi (Salla fell).



Copyright: Dennis Lehtonen