Image Description and Details :

Observing sessions :22 Apr...27 May 2020
Site : QUART (Aosta Valley) Italy
Telescope : SharpStar AL 107-PH
Camera : Moravian G2-8300
Autoguiding : ZWO ASI 174MM-Mini (Mono)
Focal Reducer : TS Photoline 3" x0,79

Filters:
Optolong CLS-CCD 1,25" 61x600sec
Astronomik Deep-Sky CCD-R 51x360sec
Astronomik Deep-Sky CCD-G 37x360sec
Astronomik Deep-Sky CCD-B 49x360sec

Total Integration: 23,9h

Pocessed with PixInsight 1.8.8.5 and Photoshop 6

Copyright Information: Marco Stra

May 11 - June 17, 2020

Location: Dark Sky New Mexico

Telescope: Planewave CDK-17

Camera: FLI PL16803

Mount: Paramount ME

Luminance: 22x20 minutes (binned 1x1)

Red: 16x20 minutes (binned 1x1)

Green: 16x20 minutes (binned 1x1)

Blue: 18x20 minutes (binned 1x1)

Copyright: Bernard Miller

Image Description and Details:

Messier Galaxy: M106
Ngc: 4217_4226_4231_4232_4248_4288_4346 (medium galaxy) from left to right.
for pgc I prefer not to detail .. there are too many !!


Sgp sequence: (4 panels)

luminance (50x600s) x4 green (20x300s) x4
h-alpha (41x600s) x4 blue (20x300s) x4
red (20x300s) x4
Made in Mazières-en-Gâtine 79310, total photo time 80h40min.

Copyright: Rémi MERE

Image Description and Details :

Now that I finally have a backyard I decided to do my first “long” project, and chose the Sadr Region to do so as it is full of gases that look great in narrowband. Living in the heart of Las Vegas, light pollution is as terrible as it gets in my backyard and the lights from the neighbors don’t help either so I aimed for 40 hours of total exposure in HSO. I ended up with 41.15 hours in total.

The image shows the bright star Sadr (mag 2.2), and part of the "Sadr Region” that includes the Butterfly nebula. Known as IC 1318, the Sadr Region is located at the center of Cygnus’s cross asterism. We can see lots of interesting gas formation within the entire photograph.

Copyright: Antoine and Dalia Grelin - Galactic Hunter

NGC 7008 Fetus Nebula in HaOIIIRGB
24.6 Hours of Integration Time
Bortle Dark-Sky Scale: 8.00

Imaging telescopes or lenses:Explore Scientific ED165CF FPL-53

Imaging cameras:ZWO ASI1600MM-PRO

Mounts:Astro-Physics Mach 1 GTO

Guiding telescopes or lenses:Orion 80mm Short Tube

Guiding cameras:Starlight Xpress Lodestar x2

Software:

Adobe Photoshop CS5.5 StarNet++ Sequence Generator Pro PixInsight

SkySafari Pro

PHD2

Filters:

Astronomik Deep-Sky B Astronomik Deep-Sky G Astronomik Deep-Sky R Astronomik Ha 6nm 1.25'' Astrodon OIII 3nm

Accessory:

Hotech 2" SCA Self-Centering Field Flattener QHYCCD PoleMaster ZWO 8x 1.25" Filter Wheel (EFW) MoonLite CFL 2.5" Large Format Focuser

NGC 7008 (PK 93+5.2), also known as the Fetus Nebula is a planetary nebula with a diameter of approximately 1 light-year located at a distance of 2800 light years in northern Cygnus. It was discovered by William Herschel in 1787, in Slough, England. NGC 7008 (H I-192) is included in the Astronomical League's Herschel 400 observing program.

Copyright: Douglas Struble

Image Description and Details :

NGC 6914 – the Bluebird Nebula – is a small but dramatic and complex reflection nebula in Cygnus. Captured with my StarlightXpress H9C and ASA 12-inch f/3.6 corrected astrograph. In this orientation, it resembles the profile of a bluebird.

Copyright: Robert Gillette

At 09:18 CET this morning the planet Venus was about to pass behind the Moon. Imaging this by daylight was a bit of a challenge, especially as the sun was nearby, but using a short exposure (1/100th second) and a red filter managed to capture the moment just before Venus disappeared. Image captured using my robotic telescope in Spain.

Copyright: Peter Goodhew‎

Partial Solar Eclipse 2020 in Hydrogen-alpha with lots of solar prominences captured on the day of Summer Solstice. Click the link below to see the full resolution.

Esprit 80mm APO - Daystar quark chromosphere - UV/IR cut - Canon 6D - AZEQ6
Mleiha, UAE

Copyright: Prabhu S Kutti

Living in the southern latitudes in Australia (35d south) we are very lucky to have access to many fine clusters and objects which are circumpolar providing plenty of opportunity to grab some data.
This image is of the Southern Pleiades (IC2602) an open cluster in the constellation of Carina. It is comprised of many very hot blue/white stars which are very prominent in the image. In the left of the frame you can see another compact open cluster, Melotte 101.
Data was captured at my private observatory. Equipment: Tak TSA 120 @ F5.6, QSI683 CCD, Skywatcher EQ8 mount. Captured LRGB data for a total of 3.9 hours exposure. As much of this data was captured during a busy moon period, I took approximately 120 subs for each filter @ 30" per sub.

Copyright: Rodney Watters

A Flying Bat (Sh2-129) with a Squid (Ou4) Inside?

I have been wanting to try this deep sky object for two years. It is quit interesting two objects for the prices of one. In reality I only have a portion of Sh2-129, the Flying Bat Nebula, which is a huge region of hydrogen gas represented by the red color captured with the Hydrogen gas filter (Ha). Located in Cepheus approximately 2,300 light-years away, Sh2-129 is a faint emission nebula and has been known about since at least the 1950's as a neighbor to IC 1396, the Elephant Trunk Nebula. I must admit, even after looking at widefield images of the Sh2-129, I see no resemblance to a Flying Bat. The Squid on the other hand does resemble a squid with it tentacles rapped up. The Squid Nebula (Ou4) is a relatively new discovery from 2011 by French astro-imager Nicolas Outters. It consists doubly ionized oxygen which gives it the green-blue color in contrast to the hydrogen. It may seem odd that this was not found until 2011 but there is a really good reason, it is really dim. I was taking 5-minute subs and while there was some nebulosity in the Ha region, there was nothing in OIII, not even a hint. If you are the type that likes to complete an object in one night, then this would not be a good choice.

Originally the Ou4 was thought to be a Planetary Nebula unrelated to Sh2-129, however, recent studies suggest it is within Sh2-129 and is bipolar outflow from a triple star system. The bright blue star in the center is the believed to be the source.

I wanted to get at least 15-hours and was able to get this done quicker than I anticipated due to unexpected clear weather. It worked out really well as we had a succession of clear nights when I was painting my garage floor anyway so conveniently left everything set up and just put a cover over it. This was one of the hardest things I have processed due the conflicting things going on. The Ha data was really strong and came out very well with hardly any processing. Not surprisingly, the OIII was very difficult to bring out and a lot of time was spent on it. StarNet was used to make separate starless Ha and OIII images which were combined to make a starless HOO image. The last part of the process was merging the RGB stars with the HOO starless image. This turned out be more difficult as the method I normally use for combining RGB stars with narrowband images didn't work well with the starless image so I used alternative method in PS described by Trevor Jones.

Camera: ZWO ASI1600MM-Pro

Telescope: Astro-Tech AT115EDT 115mm Refractor Telescope

Focal Reducer: AstroTech Field Flatterner/Focal Reducer

Mount: Orion Atlas Pro

Filter Wheel: ZWO EFW 8 x 1.25"

Filter: ZWO Ha, OIII, R, G, B

Focuser: ZWO EAF

Autoguiding: ASI120 Mini attached to an Agena 50mm Guide Scope/ZWO 60mm Guidescope

Exposure: Ha 150 x 300s, OIII 165 x 300s, R 45 x 60s, G 29 x 60s, B 29 x 60s

Processing: APT, NINA, PixInsight, Photoshop.

Copyright: Kurt Zeppetello‎

NGC 3521 often termed the Bubble Galaxy is a flocculent intermediate spiral galaxy located around 35 million light-years away from Earth in the constellation Leo. It is a spiral galaxy with a trace of a bar structure , a weak inner ring , and moderate to loosely wound arm structure. The galaxy spans 50,000 light years which is approximately half that of our galaxy the Milky Way.
Imaged in LRGB H alpha on my Officina Stellare RiDK 500 telescope at El Sauce (Obstech) Atacama Desert, Chile.

15 hours Luminance, 11 hours Ha, 5 hours each RGB bin 2.

Copyright: Mike Selby

Christmas in June? No, just galaxy NGC 3718 making me think of that time of year. It's surrounded by other galactic treasures including Hickson Compact Group 56 and NGC 3729.

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. No moon, average or better transparency, and average seeing. Data acquired April 2 – May 16, 2020.

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

Luminance: 139 x 10m = 1,390m
Chrominance: 289x 3m = 867m
Total: 37hr 37m

Copyright: Ron Brecher

Image Description and Details :

While most spiral galaxies, including our own Milky Way, have two or more spiral arms, NGC 4725 has only one. Here, the solo spira mirabilis seems to wind from a prominent ring of bluish, newborn star clusters and red tinted star forming regions. The odd galaxy also sports obscuring dust lanes a yellowish central bar structure composed of an older population of stars. NGC 4725 is over 100 thousand light-years across and lies 41 million light-years away in the well-groomed constellation Coma Berenices. Computer simulations of the formation of single spiral arms suggest that they can be either leading or trailing arms with respect to a galaxy's overall rotation. Also included in the frame, sporting a noticably more traditional spiral galaxy look, is a more distant background galaxy (text taken from NASA APOD).

Martin first imaged NGC 4725 with a CDK17/Apogee U16M but later returned to add very high quality luminance acquired with the same scope but with an SBIG STXL11002 and adaptive optics. That result is shown here, but reassembled and reprocessed using new techniques developed in Adobe Photoshop.

Copyright: Martin Pugh

Image Description and Details :

Several years ago I captured this beautiful region of Sky and called it “The Cosmic Continent”
Here is my latest Hubble Palette (SHO) version, a very wide view of The North America Nebula otherwise known as NGC7000 using data from Grand Mesa Observatory’s System 1a the William Optics Redcat together with a QHY16200A Monochrome CCD, this combination is giving a field of view of approximately 6 x 5 degrees


The William Optics Redcat with QHY16200A and its 7 position filter wheel is now available at Grand Mesa Observatory for subscription, see here for details.
https://grandmesaobservatory.com/equipment

In this Hubble Palette version the H-Alpha is mapped to green, SII is mapped to red and OIII is mapped to the blue channel. I removed the stars using Starnet and replaced them with the naturally colored stars from the broadband image, while the colors in this image are not the true colors, the narrowband filters used in the making of this Hubble Palette image reveal much more of the hidden gasses not visible in a broadband image.

Captured over 7 nights in May and June 2020 for a total acquisition time of 15 hours.

The North America Nebula (NGC 7000 or Caldwell 20) is an emission nebula in the constellation Cygnus that resembles the shape of North America and The Gulf Of Mexico. It lies at a distance of approximately 1800 light years away from us.

This image contains some very interesting areas such as The Cygnus Wall which is representative of Mexico and Central America, the nearby emission objects Pelican Nebula (IC5070) and the faint emission nebula IC5068

Technical Details
Captured and processed by: Terry Hancock
Location: GrandMesaObservatory.com Purdy Mesa, Colorado
May 5th, 20th, 21st, 25th, 29th, 31st, June 8th

HA 240 min 24 x 900 sec
OIII 255 min 25 x 900 sec
SII 225 min 23 x 900 sec
LRGB 180 min 9 x 300 sec

Filters by Chroma
Camera: QHY16200A
Gain 0, Offset 130 Calibrated with Flat, Dark and Bias Frames.
Optics: William Optics Redcat 51 APO @ F4.9
EQ Mount: Paramount MEII
Image Acquisition software Maxim DL6
Pre Processing in Pixinsight
Post Processed in Photoshop CC
Star Removal by Starnet

Copyright Information: Terry Hancock

NGC6188

I went deep on this one from my terrace here in Belo Horizonte collecting around 51.1 hours of data during the last 7 years:

SBIG8300 + FS60c:

Ha: 41·900s
L: 58·420s
RGB: (21, 21, 21)·420s

QHY168c + FS60c:

500·90s LPS-IDAS P2
278·180s L-Enhance

Acquisition: FAST
Processing: Pixinsight / PSCS5

Copyright: Roberto Colombari

The moon passes west to east through the earth's southern penumbral shadow. A penumbral lunar eclipse took place on 5 June 2020. It was the second of four penumbral lunar eclipses in 2020.

Image Description and Details :

Location Tabarca Island, Spain.
Composition of 4 photos for moon sequence.
made 6 km away from the island.
Camera réflex canon 5D MKIV, Sigma 150-600mm

Copyright Information: Jordi Coy

This one came very close to being a double transit. But just as Europa breaks the limb to the right, Io just starts to enter from the left.The 2 shadows do, however, transit the disk together. Only a few pixels would have made a double planet/ shadow transit. Oh well. This was shot on 05/19/2017. Time starts at 02:51 UT and ends at 04:43 UT.

Copyright: John Cox

Our star, the sun, is 4,57 billion years old and belongs to the spectral class G2V yellow-orange. She is a so-called yellow dwarf at best age compared to other stars. We will still be approx. Another 4,5 billion years can enjoy her. However, their end will also be our end...
The shot shows the AR2765 sunspot and a protuberance, an ejection of hot gas, on the surface.

Surface Temperature / Surface Temperature:
~ 5700 ℃
Rotation duration / rotation period: 25,4 days
Distance to Earth / Distance to earth: ~ 149,6 million km
Diameter / Diameter: ~ 1,4 million km

Recording data / capture data:
🔭: Lunt LS152 H-alpha
📷: Zwo ASI 120MM mini
🗓: 12.06.2020 17:43 o'clock
👨 💻: Sharpcap, Autostackkert, Photoshop

Copyright: J-N Photography

Third finished image from the big Tak/QSI 6162/Chroma combo.
This is a very Hydrogen rich region, so have deliberately allowed some of the background nebulosity to show through.

The Chroma 5nm filter worked a treat as the Ha was taken just 30 degrees from a full moon!
To me it resembles a genie pouring out of the magic lamp!Ha – 11x1200secs
O3-17 x 1800 secs
S2- 10x1200secs
RG&B 10×180 secs ea.

Captured using Ekos on a Mac.

Processed in APP & PS CC 2020 – with Topaz NR
Taken from my light polluted suburban backyard in Melbourne.

Telescope: Takahashi TOA 130 + Flattener 67

Camera: QSI 6162 WSG8

Mount: Takahashi NJP Temma 2

Filters: Chroma 5nm Ha & S2, 3nm O3 & RGB

Guiding Camera: Starlight Xpress Lodestar X2

Integration time (Exposure)17 hrs

LocationBurwood, Melbourne, Victoria, Australia

Copyright: Andy Campbell

Yesterday, I spent a beautiful night at this scenic lake with my buddy benjaminbarakat

Shortly before moon rise, I had captured all my planned shots and was ready to call it a night. While packing my gear, I noticed that the peaks started to glow in the light of the rising moon. Despite being tired from shooting two nights in a row, Benjamin and I decided to set up again and shoot a panorama of the lake in moonlight.

The result confirms an old photographers wisdom:
It is always worth to linger a bit longer.

EXIF:
20 panel panorama from fixed tripod.
Canon EOS 6D astro modified
Tamron 15-30mm f2.8
20 x 30s @ ISO6400

Copyright: Ralf Rohner