Starship Asterisk*

Comet 21P / Giacobini-Zinner on Sep. 17th
near IC 443 (Jellyfish Nebula)
Copyright: Velimir Popov, Emil Ivanov Irida Observatory More info and hi-res images on website

"Cartwheel Galaxy" (ESO350-40)
Full version : https://cdn.astrobin.com/thumbs/xN-Ih5N ... hqkGbg.jpg

A crop :
Full version : https://cdn.astrobin.com/thumbs/BOQUB6R ... hqkGbg.jpg

The most famous version of this galaxy is the one made by the HST, but it's a very rare object for amateurs because of its distance (500 million LY away) and its apparent size (1,1' x 0,9'). Even with a 1m RC (and its 6,7m of focal lenght), it is still a little target !

Its reshift is 0,03, which correponds to a recessional Velocity of 10.000 km/s.

The galaxy was once a normal spiral galaxy before it apparently underwent a head-on collision with a smaller companion (probably one of the little galaxies just around on the image). When the nearby galaxy passed through the Cartwheel Galaxy, the force of the collision caused a powerful and high speed shock wave through the galaxy, which created a starburst and the bluish ring around the galaxy.

Setup : RC 1m - ASA DDM85 - FLI ProLine16803 - Chilescope remote

Total integration : 3h45

Copyright: Jean-Baptiste Auroux - https://www.astrobin.com/users/Jean-Baptiste_Paris/

Comet 21P / Giacobini-Zinner on 20.09.2018

Copyright: Velimir Popov, Emil Ivanov Irida Observatory More info and hi-res images on website

Mosaic 3x3 Sadr & Deneb Region HaRGB

Telescope: Rokinon 135mm
Camera: QSI 583-wsg
Mount: Astro Physics AP Mach 1 GTO with GTOCP3

Astrodon Ha 5nm- 108x600"
Astrodon Red Tru-Balance E-Series Gen 2- 108x300"
Astrodon Green Tru-Balance E-Series Gen 2- 108x300"
Astrodon Blue Tru-Balance E-Series Gen 2- 20x1800"

Location: Deep Sky West, Rowe, New Mexico.
Copyright & Processing by Alberto Pisabarro

http://i63.tinypic.com/jp9a9d.jpg

More Resolution:

Rolando Ligustri wrote: comet 21P (G-Z) "over" the open cluster M35

apo 150/1050 color ccd ST4002 3x300sec

Rolando Ligustri wrote: comet 21P (G-Z) in Orion field

apo 106/530 ccd PL11002 L=15x120sec

astroligu wrote: ↑Thu Sep 20, 2018 5:42 pm

Rolando Ligustri wrote: comet 21P (G-Z) "over" the open cluster M35

apo 150/1050 color ccd ST4002 3x300sec

I love that picture of Comet 21P "plowing right through" cluster M35. It looks as if the comet is about to hit one of the brightest stars and send it flying!

Ann

The Moon on September 18th , from Monterrey, Mexico.
Copyright: Luis Jorge Manzanero
Mosaic of 18 individual pictures. Taken with telescope Celestron CPC 800, camera ZWO ASI 224MC, processed with AutoStacker 3, Registax and Photoshop.

Image in full resolution in: https://tinyurl.com/y9tktspv

NGC 281 - Pacman Nebula NB & RGB Stars.

NGC 281 PacMan Nebula by Brendan Kinch, on Flickr

See also: http://www.kinchastro.com/ngc-281-pacman-nebula.html

Simeis 57 / DWB 111 - Propeller Nebula
http://sternwarte-wasserberg.de
Copyright: Frank Breslawski

14.5 hrs H-Alpha / SII / OIII, taken with a TS Imaging Star 65/420 Quadruplet Astrograph and Astrel Instruments AST8300 CCD with Astronomik filters from my backyard in Germany.

High resolution image on AstroBin: https://astrob.in/full/367957/0/


Acquisition details:
Astronomik H-Alpha 6nm CCD: 27x900" -20C bin 1x1
Astronomik SII 6nm CCD: 15x900" -20C bin 1x1
Astronomik OIII 6nm CCD: 16x900" -20C bin 1x1

18/20 Luglio 2018
Località: San Romualdo - Ravenna
Tecnosky AG70 F/5 su ASA DDM60PRO
CCD QSI 583ws raffreddato -15 - Pose non guidate.
Filtri RGB Astrodon Gen2 E-series
RGB: R 22x5min, G 22x5min, B 22x5min.
Acquisizione: MaximDL5 - Calibrata con Dark, Bias e Flat.
Elaborazione: MaximDL5, Astroart4, Paint Shop Pro X9, Plug-in Nik, Topaz e StarSpike Pro

Cristina Cellini

Fleming's Triangular Wisp (NGC 6979)
22.5 hours, Ha/OIII image taken with Esprit 150mm ED Triplet APO and Atik One (ICX694) w/Astrodon filters

High resolution image: https://photos.smugmug.com/Astrophotogr ... WhLNsJ.png
Full acquisition details on Astrobin: https://www.astrobin.com/full/367819/0/



John Renaud, Texas, USA

Copyright: Raul Villaverde Fraile
Messier_33_70tomas_600_2018 by Raul Villaverde, en Flickr

Eta Carinae Hubble Pallete
[img3]Eta Carinae by maicon germiniani, no Flickr[/img3]

M51 - Whirlpool Galaxy
Full-size/details: http://jeffjastro.com/dso/M51_18Jun18.htm
Copyright: Jeffrey O. Johnson (http://jeffjastro.com)
... Imaged from my backyard. Thank you for looking ...

Cave Nebula
HaRGB

Nick Pavelchak
Altamont, NY

https://www.astrobin.com/368216/0/?nc=user

Resubmission: NGC 281. (Reduced Colour Saturation)
Click on image for larger picture.

For those interested, more info (and access to higher resolution) here: http://www.kinchastro.com/ngc-281-pacman-nebula.html

Rolando Ligustri wrote: the comet 21P today, near the Cone nebula, the size of the sensor and the fact that it was placed vertically, cut off a part of the tail

link for high res, https://www.astrobin.com/full/368264/0/

Full colours in vdB 142 The Elephant Trunk nebula in Cepheus

https://farm2.staticflickr.com/1853/299 ... d101_o.jpg

Copyright: Lluís Romero
http://astrophotographysirius.com/

Open Cluster NGC 6704
Constellation of Scutum
Magnitude: 9.2
Discovered by the German astronomer Friedrich August Theodor Winnecke in 1854.
Dark nebulae: Barnard 104, complex B110-B113
Field with a huge dark appeal. There are several nebulae in the space of the sky,
mostly Dark Nebulae. Those that are massive and large regions of gas and dust are blood-formers
stars. Dark nebulae are not illuminated by nearby stars, hence the coloration
dark matter. Dark nebulae are crucial to the life cycle of the universe
For the raw generations for a next generation of stars and planets.
You may be looking at nothing, but nothing can be more of truth.

[img3]NGC 6704, B110, B111, B 107, B113 by maicon germiniani, no Flickr[/img3]

LBN 134 and VDB 126

[img3]LBN134 VDB126 by maicon germiniani, no Flickr[/img3]

Rolando Ligustri wrote: comet 21P (G-Z) 25/09/2018 when passed "under" the Cone nebula

link for high res, https://www.astrobin.com/full/368607/0/

Blue Horsehead Nebula
Copyright: Jeffrey Sines
Blue Horsehead Nebula 20180925 by Jeffrey Sines, on Flickr

Copyrights: Raul Villaverde Fraile
NGC1909 CABEZA DE BRUJAV4 by Raul Villaverde, en Flickr

M57 Ring Nebula