Submission: 2018 November

[Ann]

Good Morning!

Finally postprocessed my closeup of the Pleiades, done with a 10inch Newtonian reflector and full format DSLR. Fine details are shown including the little edge-on galaxy PGC 13696 right of the star Electra.

That's delightful!!!

Ann

[Sebastian Voltmer]

1st image from the InSight lander - cleaned and processed (right).

solo version:

www.astrofilm.com / www.apollo-13.eu
sebastian@voltmer.de

Cheers,
Sebastian

[trobison]

The Trifad Nebula

The Trifad Nebula by Terry Robison, on Flickr

Messier 20, or The Trifad Nebula is an unusual combination of dark, reflective, and emission nebula, plus an interesting open cluster of stars. It is located in an H II region in Sagittarius. The distance from out vantage is around 5200 light years away. It’s a little over 21 light years across, and is fairly bright at Magnitude 6.3. This makes it a fairly popular target with amateur astronomers.

I wanted to highlight the fine Ha filaments that surround this popular target. Ha areas are typically red in astronomical photos. The central area is bright, and tends to have a more washed out colour. On closer inspection, there is a terrific amount of detail running through the lobs. It looks like there are many dark cavernous channels intersecting this area. Each branching out into tiny filaments.


Exposure Details:

• Lum 46X900
  Red 12X900
  Green 8X900
  Blue 11X900
  Ha 18X1800

Total time 28.25 hours


Instruments Used:

• 10 Inch RCOS fl 9.1
  Astro Physics AP-900 Mount
  SBIG STL 11000m
  FLI Filter Wheel
  Astrodon Lum, Red, Green, Blue Filters
  Baader Planetarium H-alpha 7nm Narrowband-Filter

Software Used

• CCDStack (calibration, alignment, data rejection, stacking)
  Photoshop CS 6 (Image processing)

[HHV]

That's delightful!!!

Ann

Hi Ann!

Thx...achieved with a quite simple setup.


best regards

[Deep-Sky-Astroteam]

IC 5146 Cocoon Nebula
Copyright by Frank Iwaszkiewicz & Nico Geisler
https://www.deep-sky-astroteam.de/en/Ne ... oon-nebula

[Ann]

The Trifad Nebula

The Trifad Nebula by Terry Robison, on Flickr

Messier 20, or The Trifad Nebula is an unusual combination of dark, reflective, and emission nebula, plus an interesting open cluster of stars. It is located in an H II region in Sagittarius. The distance from out vantage is around 5200 light years away. It’s a little over 21 light years across, and is fairly bright at Magnitude 6.3. This makes it a fairly popular target with amateur astronomers.

I wanted to highlight the fine Ha filaments that surround this popular target. Ha areas are typically red in astronomical photos. The central area is bright, and tends to have a more washed out colour. On closer inspection, there is a terrific amount of detail running through the lobs. It looks like there are many dark cavernous channels intersecting this area. Each branching out into tiny filaments.


Exposure Details:

• Lum 46X900
  Red 12X900
  Green 8X900
  Blue 11X900
  Ha 18X1800

Total time 28.25 hours


Instruments Used:

• 10 Inch RCOS fl 9.1
  Astro Physics AP-900 Mount
  SBIG STL 11000m
  FLI Filter Wheel
  Astrodon Lum, Red, Green, Blue Filters
  Baader Planetarium H-alpha 7nm Narrowband-Filter

Software Used

• CCDStack (calibration, alignment, data rejection, stacking)
  Photoshop CS 6 (Image processing)

That's a magnificent picture! So detailed and so beautiful!

I love how you have captured so much red Hα nebulosity, not least those filamentary streamers at left in your image. But you have also shown us delightful details in the blue reflection nebula, how it wraps around the almost circular red emission nebula, but gets fainter and less blue as it does so. I love, too, how the blue reflection nebula seems to extend almost all the way to the bright blue star HD 164402 at 6 o'clock in your image. I can't help wondering if the nebula and the star just might be at comparable distances from us.

What a delightful picture!

Ann

[Steve Pastor]

Narrowband Image of a Large Emission Nebula in Cassiopeia

NGC 281 is a H II emission nebula in Cassiopeia containing the open cluster IC 1590, which powers the ionization of the hydrogen gas. Large dust filaments as well as Bok globules, which may be the site of future star formation, can be seen. The image is a total of 5 hrs 20 min exposure in H-alpha and 10 hrs in Oxygen[III] light. Image taken with a Takahashi CCA250 astrograph and QSI683wsg camera on a Paramount ME on the nights of 16 Nov, 13, 15 Dec 2017 and 3 Oct, 5, 6, 10 Nov 2018 in Mayhill, NM (46 x 1200 sec lights @ -20 degrees C. Astrodon H-alpha filter 5 nm and O[III] filter 3 nm bandwidth; 24 darks ; 128 bias; 128 flats). Bicolor Image with Pixel Math ( R = H-alpha; Green = 30% H-alpha + 70 % O[III], B = O[III]; Processed with PixInsight 1.8.5.1353 Ripley (x64).

[astrosirius]

IC 434 Horsehead nebula - Barnad 33 (B33)


he Horsehead Nebula is a dark nebula in the constellation Orion. The nebula is located just to the south of the star Alnitak, which is farthest east on Orion's Belt, & is part of the much larger Orion Molecular Cloud Complex.

Copyright by: Lluís Romero

[astroligu]

comet 46P Wirtanen today remotely from Australia-SSO, it is interesting to see its tail of ions and that the coma measures 55 ' diameter. visual observers have estimated it around 5.7 magnitude

link for high res, https://www.astrobin.com/full/379070/0/

[alcarreño]

Copyrights: Raul Villaverde Fraile
Monoceros_2018 by Raul Villaverde, en Flickr

Oh, and belatedly...

I really, really like this picture! I particularly like how the Rosette Nebula and the nebulosity surrounding the Christmas Tree cluster seem to be connected. Bluish star 13 Monoceros (top center) seems to sit like a spider in its web, casting threads in both directions to connect the two prominent nebulas.

Great photo!

Ann

Thanks¡¡