Submissions: 2021 June

[GruppoAstrofiliPalidoro]

An evocative panorama of Mars-Moon conjunction. It was taken on 13 june 2021 on the Lazio coasts in Italy. The image was obtain with 5 cameras and result is the joined of them. Autors are Cristiano Negroni, Luciana Guariglia, Giuseppe Conzo, Chiara Tronci, Amedeo Lulli, Giovanni Esposito, Antonio Canaveras.
Gruppo Astrofili Palidoro



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GRUPPO ASTROFILI PALIDORO
@mail: info@astrofilipalidoro.it

[Harles99]

"Fireflies and the Milky Way"

I've been wanting to take a photo like this for quite some time now. We've had a lot of rain recently in the central Texas area, so not only have the they been out almost every night in this muggy weather, I finally had a change to take pictures with them and the Milky Way. A "Firefly" actually isn't a fly, but rather a beetle. A chemical reaction within the firefly’s body produces the light. Scientists describe it as a "Cold Light", meaning 100% of the energy emitted is light. A very efficient creature.

This photo is a blend of 21 images to capture the fireflies throughout the night.

©Harley Grady 2021

A Summers Night - Fireflies and the Milky Way by HDG Studios, on Flickr

[KuriousGeorge]

NGC 3718. KG Observatory, Julian, CA.

Complete reprocess of my prior submission using PI Photometric Color Calibration (PCC) followed by white balance on both galaxies. This should be more "realistic" color without the red hue often introduced by PCC due to the intervening Milky Way dust.

[Yovin Yahathugoda]

The Fighting Dragons of Ara

https://www.astrobin.com/users/YovinRY/
Copyright: Yovin Yahathugoda

Click to view full size image

Full quality version here: https://cdn.astrobin.com/images/86236/2 ... 4a86c0.jpg

Telescope - Officina Stellare RH200
Camera - FLI ML 16200
Filters - Astrodon Ha 3nm, Astrodon OIII 3nm, Astrodon SII 3nm
Software - Photoshop 2020, PixInsight & Topaz Denoise AI
Location - El Sauce Observatory, Chile

Lum - Synthetic Luminance
Halpha - 17x600s
OIII - 19x600s
SII - 21x600s
Total Exposure time - 9.5 hours

Full acquisition details at https://www.astrobin.com/fkyqcx/0/

[miguelang555]

Owl Nebula - Messier 97

The Owl Nebula, also known as Messier 97 (M97), is a planetary nebula located in Ursa Major. The nebula lies at an approximate distance of 2,030 light years from Earth. It is known for its distinctive shape, resembling a pair of owl-like eyes, that can be seen in larger telescopes.

The estimated age of the Owl Nebula is about 8,000 years. The nebula has the designation NGC 3587 in the New General Catalogue.

The Owl Nebula was formed when a central star expelled its outer gaseous layers about 8,000 years ago. As the outer layers were gradually blown off over thousands of years, what was left of the original star contracted to form a hot white dwarf.

The 16th magnitude central star has 55 to 60 percent of the Sun’s mass, only 4 percent of the Sun’s radius, and an estimated surface temperature of 123,000 K. The star can be seen between the Owl’s eyes. Its radiation is responsible for the nebula’s glow.

http://observatoriosspag.es/index_htm_f ... 20LRGB.jpg

DETAILS DATA/SITE
Place: Monfragüe- Cáceres-Spain
SQM: 21,7
Dates: 6 JANUARY 2021

Details:
Telescope: RC16 f/6,8
Mount: TITAN 50 LOSMANDY
Camera: SBIG STL 11000 C2 / AOL
Focuser: Seletek Armadillo 2
Filters: Astronomik
Exposure: L: 51x900 sec // RGB: 17x900 sec bin1
Processing: MaximDL
Software: CAP5, The SKY6, CCD Soft
Control Remote: Talon6 ROR

Copyright: Miguel Ángel García Borrella
http://observatoriosspag.es/index.htm

[barretosmed]

The Cauldron of Stars - Omega Centauri (NGC 5139)

Edmond Halley, a renowned scientist of his time, was known for saying that comets were periodic, and said that a comet would pass again in 958, which comet became known as comet Halley.
In his youth, he went to Africa, on the island of Saint Helena, to catalog the stars of the southern hemisphere, and on this trip he discovered the Omega Centauri cluster.
This cluster is the largest and brightest in the Milky Way, one of the few that can be seen with the naked eye, and the strangest of all, that it has stars of different ages, something unusual among clusters, which suggests that it can have been made by the collision of a galaxy in the Milky Way.

Best details:
https://www.astrobin.com/full/z8whqh/C/?nc=user

EQUIPMENT:
ZWO ASI 6200MC PRO COLED
Espirit 150mm
139 X 30 sec

Date: . 06/05/2021
Location: Campos do Jordão- SP - Brazil


Copyright: Fernando Oliveira de Menezes
Email: Barretosmed@hotmail.com

Click to view full size image

[sydney]

Bubble Nebula
[Ha][OIII]

Nick pavelchak
https://www.astrobin.com/306853/?nc=user

https://cdn.astrobin.com/thumbs/gkKtPaR ... yzPqX1.jpg

[sydney]

Pillars of Creation/M16
[Ha][OIII]

Nick Pavelchak
https://www.astrobin.com/305603/?nc=user

https://cdn.astrobin.com/thumbs/UtTdSDL ... yzPqX1.jpg

[Astro_maa]

M51-HaRGB by Mohmmad Alobaidi, on Flickr




https://www.instagram.com/p/B-NSPZOh4SF ... _copy_link

[JulioCastro]

Panoramic image taked in the Roques de Garcia in the Teide National Park of tenerife (Spain).
20 May 2021
Panorama of 14 pictures in two rows. 14 mm, 25 seconds, f2,8 and iso 6400 each one.
Photographer: Julio Castro Pardo
https://www.instagram.com/juliocastropardo/
https://flickr.com/photos/163697155@N07 ... 9424327993

[ramdom]

Flying Bat and Squid nebulae Sh2-129/Ou4 widefield (c-shorgb)

Also includes LBN445, LBN449, LBN453, v419 Cephei.

Total integration: 7876 minutes/131+ hours (2193 x 300s for Ha + 3489 x 300s for O3 + 2074 x 300s for S2 + 60 x 120s for OSC).

Cameras: QHY163M (16mp mono) and QHY247C (24mp OSC) CMOS cooled to -20 and -15 degrees C.
Telescopes: Takahashi FC100DF Steinheil fluorite doublet and Stellarvue SV70T triplet apochromat refractors @ f/4.9 and @ f/4.8.
Reducers: Takahashi FC-35 (0.66x) and SFFR70-APO (0.8x).
Mount: Paramount MyT.
Filters: 1.25" Astrodon 5nm Ha, 3nm O3, 3nm S2 and 2" Baader UV-IR-Cut
Software: TheSkyX Pro, SharpCap, PixInsight, Topaz Studio 2.

http://ram.org/images/space/scope/1.4+7 ... m_131h.jpg

ou4_sh2-129_wf_c_lshorgb_2193m+3489m+2060m+120m_7876m_131h.inline.jpg (81.37 KiB) Viewed 21730 times

Inline image with reduced quality uploaded to the forum. Full resolution images of all images in the series are available at https://www.astrobin.com/fyu2su/ https://www.astrobin.com/hg1c5d/ and https://www.astrobin.com/jdaa90/ and of the primary images at http://ram.org/images/space/scope/1.4+7 ... m_131h.jpg (widefield), http://ram.org/images/space/scope/1.4+7 ... m_131h.jpg (narrowfield) and http://ram.org/images/space/scope/1.7.4 ... 0m_53h.jpg (ou4 only).

[sternklar]

Globular Cluster M 14 in Ophiuchus, photographed from Switzerland
https://sternklar.ch/images-webpages/Fo ... Jun-21.htm

M 14 in Ophiuchus, quite rarely photographed because of its appearance during short summer nights.
Exposure data:
Takahashi TOA 150/1100 APO-Refractor @ f/5.6 (TOA-645 Reducer), ASI 1600 MM-Cool, Exposure time 1 x 5 min. L, 8 x 5 min. R, 2 x 5 min. G, 3 x 5 min. B (70 minutes total) and 10 Micron GM 2000 QCI Ultraportable Mount, June 14, 2021. Copyright: Manuel Jung, www.sternklar.ch

Click to view full size image

[michelmakhlouta]

NGC 6543

The Cat's Eye Nebula is a planetary nebula in the northern constellation of Draco. It lies about three thousand light-years from Earth. NGC 6552, the galaxy next to the nebula, is actually much farther away from us, at an estimated 365 million light-years.



Rig details:
Mount: Avalon Instruments Linear Fast Reverse
OTA: Sky Watcher Esprit 120 refractor
Camera: ZWO ASI1600MM Pro + Chroma 3nm narrowband filters + Astronomik RGB filters
Autoguiding: ZWO ASI290MM + ZWO OAG
Integration: 38 hours

Here's the exposure distribution per filter
Astronomik Blue: 60x60" (1h) (gain: 75.00) -15C bin 1x1
Astronomik Green: 60x60" (1h) (gain: 75.00) -15C bin 1x1
Astronomik Red: 60x60" (1h) (gain: 75.00) -15C bin 1x1
Chroma Ha 3nm: 94x600" (15h 40') (gain: 200.00) -15C bin 1x1
Chroma Ha 3nm: 75x60" (1h 15') (gain: 75.00) -15C bin 1x1
Chroma OIII 3nm: 101x600" (16h 50') (gain: 200.00) -15C bin 1x1
Chroma OIII 3nm: 75x60" (1h 15') (gain: 75.00) -15C bin 1x1

[the_astronomy_enthusiast]

The Eastern Veil Nebula by William Ostling, on Flickr

[ivanrota]

Primera prueba utilizando la paleta hubble, realizada con cámara a color y filtro L-enhance, el resultado me sorprendió. Comparto abajo el enlace del video tuyo que seguí. Espero que os guste.
- Telescopio: Takahashi FSQ85
- Cámara principal: Qhy 168C
- Montura: Neq 6 pro.
- Sistema de guiado lunático.
- Procesado con Pixinsight 1.8
Datos:
- 50 lights 300", -20 grados, 10 gain, 50 offset.
- Darks y flats.
- Filtro L-enhance
IC 1848 PALETA HUBBLE by ivan izquierdo bernal, en Flickr

[a.carrozzi]

A few images of the solar cromosphere in H-Alpha taken on June 17th 2021
Sun in H-Alpha 17th June 2021 by Alessandro Carrozzi, su Flickr
Sun in H-Alpha 17th June 2021 by Alessandro Carrozzi, su Flickr
Sun in H-Alpha 17th June 2021 by Alessandro Carrozzi, su Flickr

[matuutex]

Chapo lake reflections
Copyright: Marcelo Maturana Rodríguez (@matuutex)
Location: Chapo lake, Chile
Instagram: http://www.instagram.com/matuutex

Click to view full size image

[SkyViking]

Fun with Spectroscopy!
http://www.rolfolsenastrophotography.com
Copyright: Rolf Wahl Olsen

Click to view full size image

Link to large image: https://www.rolfolsenastrophotography.c ... -Fc3VfvZ/O

This image is a comparison of a range of spectra taken of 31 naked eye stars visible from the Southern hemisphere. Spectra were taken with a StarAnalyzer diffraction grating mounted in the filter wheel of my CCD camera on a 12.5" Newtonian telescope. Each spectrum was processed using RSpec software and calibrated for instrument response. The resulting spectra show the black body radiation profile of the various stellar types and their typical spectral line features.

The star spectra are ordered according to stellar type, with hot blue stars at the top and cooler red stars towards the bottom. Hot blue stars (O, B, A types) have a light profile heavily skewed towards the left (blue and violet) end of the spectrum given these stars emit the majority of their energy at short wavelengths. They also display the famous Hydrogen Balmer series of absorption lines.

In the centre are the F, G and K type stars with their more even light profiles and numerous but fainter absorption lines.

Towards the bottom are the cooler M type stars with profiles heavily skewed towards the red and infrared end of the spectrum. Then also show many broad absorption lines form Titanium Oxide molecules suspended in their cool atmospheres.

At the very bottom are two examples of Wolf-Rayet stars that have unusual spectra with some prominent emission lines.

Also visible are a couple of absorption lines in the red, which appear in every single spectrum regardless of spectral type. These are caused by terrestrial oxygen in the Earth's atmosphere.

The background image is my deep photo of cometary globules CG 30, CG 31 and CG 38 in Puppis.

Image details:
Date: 29 May, 1 July 2021
Exposure: Luminance 0.03s - 3s @ -25C
Telescope: Homebuilt 12.5" f/4 Serrurier Truss Newtonian
Camera: QSI 683wsg with Lodestar guider
Filters: StarAnalyzer 200 Diffraction Grating
Taken from my observatory in Auckland, New Zealand

[tayson82]

Hello.
This is my last image. Some around 30h exp, single sub 900s.
Color mapped sulfur-red, hydrogen-green, oxygen-blue.

setup: QHY695A, Ioptron CEM60EC, RedCat51, Chroma's narrowband filters.

IC5068
https://astropolis.pl/uploads/monthly_2 ... c4714d.jpg

[Llama]

A date between Comet C/2017 T2 PANSTARRS & Messier 106

Almost one year ago, C/2017T2 PANSTARRS meets up with the galaxy Messier 106 (June 23rd 2020)

Copyrights: Nicolas Rolland & Terry Hancock


A date between Comet C/2017 T2 PANSTARRS & Messier 106 by Nicolas Rolland, sur Flickr

RA: 12h 16m 16.8s
DEC: +47° 12’ 13"
Size: 1.57 x 1.02 deg
Orientation: Up is 181 degrees E of N
Location: Canes Venatici

C/2017 T2 PANSTARRS
Distance : 14.5 ly minutes
Magnitude: 12.5

Messier 106:
Distance : 23.6 Mly
Magnitude: 8.4

Acquisition 2020-06 (June 23, 10:08pm - June 24, 12:17am)
Total acquisition time of 2.6 hours.
Exposures: RGB 17*180s & 22*300s

Optics: William Optics 156 Refractor
Mount: Paramount ME
Camera: QHY367 Pro C Color CMOS
Pre Processing: CCDstack, Pixinsight & Excalibrator
Post Processing: Photoshop CC

[thomasroell]

The Monkey Head Nebula

A true winter target, not exactly fitting for Summer solstice, today it’s the longest day of the year.

However it’s about time to finish with my last winter images, to make room for the summer nebulae to come, so here it is.
And although the data was gathering digital dust, is was a lot of fun to proces in the end, lots of tiny details and vibrant colors.

The Monkey Head Nebula, NGC 2174, is a HII emission nebula in the constellation of Orion. It’s guesstimated to be located at a distance of 6,400 light-years from earth.

Total integration time 7 hours 15 minutes

87 x 300s iso 3200
—————————————————————-

TS-Optics 115mm APO, Sky-Watcher HEQ5 mount

Canon 750D, modified
Optolong L-Enhance filter

[Michael Teoh]

Click to view full size image

First successful attempt at taking a sunset image in the hydrogen alpha wavelength. Despite some thin clouds, the surface features can be seen clearly, including the sunspot in AR2833, a long filament nearby, and a few faint prominences near the limb. The result is beyond my expectation, given that the Sun was low in western sky at just 13° above horizon.

Video sequence can be viewed here: https://youtu.be/HpVA5a81-vI

[the_astronomy_enthusiast]

Hi all!
Here is an image for your consideration:



Corona Australis Molecular cloud by William Ostling, on Flickr

[Kinch]

Cygnus Region - North of Sadr

Click on image to enlarge

Full info and high resolution available @ https://www.kinchastro.com/north-of-sadr-cygnus.html

[observatoriodejardim@gmail.com]

https://flic.kr/ps/3Wj51X