Starship Asterisk*

Posted: **Mon Oct 23, 2017 12:08 pm**

NGC7822 SHO. The star nursery
13 hours. ASA10, Moravian G3 16200, AZEQ6
Full is here https://img4.hostingpics.net/pics/7168117822V1.jpg

: Click to view full size image

Posted: **Mon Oct 23, 2017 3:00 pm**

a Corona Australis zoomout

center crop

300mm

135mm

and CrA on top of milkyway's central bulge - 16mm

full and annotated versions: http://www.astrobin.com/318124/

clear skies, Tommy

Posted: **Mon Oct 23, 2017 4:07 pm**

Sharpless 188 by KG Observatory. Mapped Ha, SII, OIII to Red, Yellow, Blue.

Sharpless 188 (SH2-188, Simeis 22 or the Dolphin Nebula) is an unusual planetary nebula in the galactic disk, approximately 850 light-years away from Earth in the northern constellation of Cassiopeia.

Despite their name, planetary nebulae have nothing to do with planets. The name of planetary nebulae arose in the 18th century because of the visual similarity between some round planetary nebulae and the planets Uranus and Neptune when viewed through small optical telescopes. The name has stuck even though modern telescopes make it obvious that these objects are not planets at all.

When a star with a mass up to eight times that of the Sun runs out of fuel at the end of its life, it blows off its outer shells and begins to lose mass. This allows the hot, inner core of the star (collapsing from a red giant to a white dwarf) to radiate strongly, causing this outward-moving cocoon of gas to glow brightly.

Planetary nebulae last for only about 10,000 years, a fleeting episode in the 10-billion-year lifespan of Sun-like stars. So, over the next several thousand years, SH2-188 will gradually disperse into space, and then the white dwarf will cool and fade away for billions of years. Our own Sun is expected to undergo a similar fate over about 5 billion years from now.

The expanding gas from SH2-188 has a nearly circular shape, but is much brighter to the southeast (lower left). This is because the rapidly moving central star – at about125 km/s – is s creating a bow shock in that direction in the surrounding interstellar medium. Faint wisps of gas can also be seen in the opposite direction, which will eventually dissipate away. SH2-188 is considered to be one of the best examples of interaction between a planetary nebula with the interstellar medium.

Imaging telescope or lens: Celestron 8" EdgeHD
Imaging camera: QSI 660 WSG
Mount: Losmandy G-11
Guiding camera: Starlight Xpress Ultrastar
Focal reducer: Celestron 0.7X
Software: PixInsight 1.8, PHD Guiding 2, Neat Image V7, Photoshop CS3, Sequence Generator Pro, Maxim DL6
Filters: Astrodon 1.25" 3nm SII, Astrodon 1.25" 3nm OIII, Astrodon 1.25" 5nm Ha
Accessories: Innovations Foresight ONAG SC, Optec FocusLock, Starizona MicroTouch Autofocuser
Resolution: 2162x2724
Dates: Oct. 17, 2017, Oct. 18, 2017, Oct. 21, 2017
Frames:
Astrodon 1.25" 3nm OIII: 12x900" -15C bin 1x1
Astrodon 1.25" 3nm SII: 10x900" -15C bin 1x1
Astrodon 1.25" 5nm Ha: 43x900" -15C bin 1x1
Integration: 16.2 hours
Darks: ~20
Flats: ~60
Flat darks: ~60
Bias: ~20
Avg. Moon age: 18.58 days
Avg. Moon phase: 4.38%
Mean SQM: 19.50
Astrometry.net job: 1782564
RA center: 22.583 degrees
DEC center: 58.434 degrees
Pixel scale: 0.642 arcsec/pixel
Orientation: 1.009 degrees
Field radius: 0.310 degrees
Locations: Home, Rancho Santa Fe, California, United States

Posted: **Mon Oct 23, 2017 6:32 pm**

NGC 869 and NGC 884

5 hours
Takahashi FSQ-106
QSI 683wsg
Paramount MyT

Location: Deep Sky West Remote Observatory

Posted: **Mon Oct 23, 2017 6:34 pm**

M33
30 Hours
RCOS 14.5"
Paramount ME
Location: Deep Sky West Remote Observatory

Posted: **Mon Oct 23, 2017 6:38 pm**

Star beyond the mountain
Copyrights: Doug Pham

The Milky Way crossing the sky over the Mayan sacred site, Chicabal Lagoon
Copyrights: Sergio Montúfar

NGC7635 and M52
Copyrights: Francesco Pelizzo

Comet C2017 O1 (ASASSN)
Copyrights: Quico Hernández

NGC 6888 - Crescent nebula & Soap Bubble planetary nebula
Copyrights: Rafael Schmall

Milky Way over Cover Bay
Copyrights: Jingyi Zhang

SH2 - 129 and OU4
Copyrights: Riccardo Crescimbeni

Equinox Aurora
Copyrights: Mia Stålnacke

Comet C/2015 ER61 Panstarrs Meets Dusty Pleiades
Copyrights: Mohammad Nowroozi

Helix
Copyrights: Mike and Trish Berthon-Jones

M57
Copyrights: Stefano Campani

LBN-437
Copyrights: Francesco Antonucci

Equinox Moon
Copyrights: Pierluigi Giacobazzi

The Moon over Astronomical Observatory of Izaña, Tenerife, Canary Islands, Spain
Copyrights: Jon Teus

Sunset from Madrid
Copyrights: Domingo Pestana

Malibu Bio-luminescence / Milky Way Sea Cave
Copyrights: Jack Fusco

Posted: **Mon Oct 23, 2017 7:28 pm**

NGC6888
Copyrights: Jose Mtanous

Ancient Engraved on Tachara Palace and moonset near March equinox - Persepolis world heritage Site
Copyrights: Amir Shahcheraghian

Soul nebula
Copyrights: Juan I. Jimenez

Lightning, Antares and Moon
Copyrights: Marcella Giulia Pace

IC 1396 Elephant Trunk
Copyrights: José Jiménez Priego

Iris and Ghost Nebula
Copyrights: José Jiménez Priego

VdB 141 Ghost Nebula
Copyrights: José Jiménez Priego

Zodiacal light
Copyrights: Miguel Sánchez González

M33 Triangulum Galaxy
Copyrights: Álvaro Ibáñez Pérez

M31
Copyrights: Tolga Gumusayak and Mike Selby

Waxing Moon
Copyrights: Newton Cesar Florencio

M76
Copyrights: Fabrizio Aimar

Comet C2017 O1 ASAS-SN and Pleiades cluster M45
Copyrights: Ángel Rodríguez Arós

Vega, alpha of Lyrae
Copyrights: Francisco José Sevilla

NGC6520 and Barnard 86
Credits and Copyrights: Data: OmegaCAM/VST; Assembling and processing: R. Colombari

Posted: **Mon Oct 23, 2017 8:48 pm**

LBN 437
Takahashi FSQ-106
QSI 683wsg-8
18 Hours

Posted: **Tue Oct 24, 2017 6:43 am**

M78 and Barnards Loop embedded in Halpha
http://www.far-light-photography.at
Copyright: Arno Rottal

: Click to view full size image

full resolution:
http://www.astrobin.com/full/318374/0/?real=&mod=
Done with Skywatcher Esprit 80, Moravian G2-8300 and Astrophotography Tool.
10h of exposure time. LRGB. Backyard Observatory in Himberg/near Vienna/Austria

Posted: **Tue Oct 24, 2017 6:47 am**

The Horse and the flame embedded in Halpha
http://www.far-light-photography.at
Copyright: Arno Rottal

: Click to view full size image

full resolution:
http://www.astrobin.com/full/318366/0/?real=&mod=
Done with Skywatcher Esprit 80, Moravian G2-8300 and Astrophotography Tool.
9,5h of exposure time. HaLRGB. Backyard Observatory in Himberg/near Vienna/Austria

Posted: **Tue Oct 24, 2017 6:51 am**

The Heart Nebula
http://www.far-light-photography.at
Copyright: Arno Rottal

: Click to view full size image

full resolution:
http://www.astrobin.com/full/317576/0/?real=&mod=
Done with Skywatcher Esprit 80, Moravian G2-8300, Canon550Da,TS 90/500 ED and Astrophotography Tool.
25,8h of exposure time. HaOIIISII and RGB . Backyard Observatory in Himberg/near Vienna/Austria

Posted: **Tue Oct 24, 2017 6:58 am**

The Great Orion Nebula
http://www.far-light-photography.at
Copyright: Arno Rottal

: Click to view full size image

full resolution:
http://www.astrobin.com/full/278277/B/?real=&mod=
Done with Skywatcher Esprit 80, Moravian G2-8300 and Astrophotography Tool.
7,2h of exposure time. HaRGB. Backyard Observatory in Himberg/near Vienna/Austria

Posted: **Tue Oct 24, 2017 7:00 am**

Soul Nebula
http://www.far-light-photography.at
Copyright: Arno Rottal

: Click to view full size image

full resolution:
http://www.astrobin.com/full/318162/B/
Done with Skywatcher Esprit 80, Moravian G2-8300 and Astrophotography Tool.
8h of exposure time. HaOIIISII. Backyard Observatory in Himberg/near Vienna/Austria

Posted: **Tue Oct 24, 2017 11:45 am**

M33 with huge Meteor
http://www.austrianaviationart.org/
Copyright: Siegfried Huss

: Click to view full size image

full resolution:
http://cdn.astrobin.com/images/thumbs/c ... ermark.jpg

Image acquiring: Siegfried Huss ( http://www.AustrianAviationArt.org )
Image elaboration: Arno Rottal ( http://www.far-light-photography.at )

camera: Olympus E-PL6 clearglass modified, lens: Samyang mFT135/2 at F/2.2 ISO800 60 sec.
Filter:Haida Pro II MC Digital Slim UV / IR 390 / 750
StarAdventurer.

Posted: **Tue Oct 24, 2017 6:20 pm**

An Iris in the Clouds
Copyrights: Craig Prost

Moon
Copyrights: Jhon Harold

M31 and friends - M32 and M110
Copyrights: John Chumack

Milky Way from Outback of Brewarrina, New South Wales, Australia
Copyrights: Raz Shaked

Gamma CYG
Copyrights: Quico Hernández

Meteor explosion over Latvia
Copyrights: Arvids Baranovs

Pacman Nebula (NGC 281)
Copyrights: Reza Hakimi

Comet C/2017 O1 (ASAS-SN) Slides by the Pleiades and California Nebula
Copyrights: Tom Masterson

A Baby Moon is Shinning and Heating
Copyrights: Miguel Claro

C/2017 O1 ASAS-SN
Copyrights: Vlad Dumitrescu

Hickson 61 - The Box
Copyrights: Bob Franke

Planetary night
Copyrights: Sergio Montúfar

Galaxy NGC 7814
Copyrights: Nathanaël Berger

M17 The Swan Nebula
Copyrights: Chuck Manges

Runnning Chicken Nebula
Copyrights: Frank Sackenheim

Ou4, Sh2-129, Elephant Trunk
Copyrights: Daniel López

'Martian' sunrise
Copyrights: Donald Morgan

M33 Triangulum Galaxy
Copyrights: Christopher Sullivan

Sadr Region
Copyrights: José Mtanous

Posted: **Tue Oct 24, 2017 11:52 pm**

Ghosts, a Sailboat, and a Bull's Horns
This widefield image of the area around Gamma Cassiopeia includes IC59/63 (Ghosts), NGC225 (Sailboat Cluster), and vdB4 (which to me looks like Bull horns).
http://www.buckeyestargazer.net
Copyright: Joel Short

: Click to view full size image

Posted: **Wed Oct 25, 2017 10:31 am**

SH2-101 SHO, 84 hrs

: Click to view full size image

full size : http://www.cielboreal.com/galerie/photo72f.jpg

total frame 84Hr done with ODK20 on Paramount ME2 in Flagey Observatory , France

http://www.cielboreal.com
Copyright: Team CielBoreal with J.C CANONNE, P. BERNHARD, D. CHAPLAIN & L. BOURGON

Posted: **Wed Oct 25, 2017 3:39 pm**

NGC 6979 - The Pickering`s Triangle Wisp
Copyright: Frank Iwaszkiewicz

Fullres/ Data: https://www.deep-sky-astroteam.de/en/Ne ... s-triangle

Posted: **Wed Oct 25, 2017 6:14 pm**

NGC1788 - Another Orion Nebula
Image Copyright: Jason Guenzel

Located between the bottom of Orion's bow and the more popular Witch Head nebula, lies this little and often overlooked gem. Situated at the end of a molecular cloud, this reflection nebula is lit from within by the light of newly formed stars. Researchers agree that some of these stars have only been shining for a million years. They really are in infancy. A rather diffuse emission cloud of hydrogen alpha arcs below this framing of the nebula. At 1300 light years, this whole scene is actually fairly close to us and interestingly is estimated to be the same distance as the nearby Great Orion Nebula, M42. I have gotten several comments that this should be called the Mini Orion Nebula.

Enjoy!

Higher resolution...
http://astrob.in/full/317713/B/

Posted: **Thu Oct 26, 2017 7:10 pm**

M31 ITU First Light by Patrick Gilliland, on Flickr

Posted: **Fri Oct 27, 2017 6:40 am**

The massive globular cluster 47 Tucanae sits in the sky very near to the irregularly shaped Small Magellanic Cloud, the pair make for a contemplative vista