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PixInsight => General => Monthly Contest (closed) => Topic started by: Javio on 2012 February 04 04:36:18

Title: February 2012 Contest Images
Post by: Javio on 2012 February 04 04:36:18
The February edition of the 2012 PixInsight Monthly Astrophotography Contest is open. Send your images until February 20th. Please use this post ONLY to submit your images.

Good luck!
Title: Re: February 2012 Contest Images
Post by: kerrywaz1 on 2012 February 13 18:42:20
Subject:
IC342 in Camelopardalis

Location:
Phoenix, AZ USA

Equipment:
Deep Sky Instruments RC14C (14.5")
Astro Physics AP1200
SBIG STL11000M w/Astrodon filters, AOL, MOAG/SBIG RGH

Image Data:
Luminance: 54 x 600 secs (1x1)
RGB: 21:12:21 x 600 secs (2x2)
Ha: 6 x 600 secs (2x2)

Processing:
Dark, Bias, Flats applied (Luminance, RGB, Ha frames)
Luminance / Ha:
RGB:
HaLRGB Combination

Title: Re: February 2012 Contest Images
Post by: Alejandro Tombolini on 2012 February 14 20:13:21
Hi, coming back with processing  :)

An image of Lovejoy during last december in colaboration with David Arrieta.

Detail of processing:

(http://1.bp.blogspot.com/-2-kS50f1Sco/Tzswbkoe8hI/AAAAAAAAAK0/0fjEYn29_cc/s1600/Process.JPG)

Picture:

(http://1.bp.blogspot.com/-d2QCsEL9b6M/TzsWb8zuoSI/AAAAAAAAAKk/4a_eFO-ideA/s1600/ProximaSurCometaLovejoy1020x1600.jpg)

Link to bigger image: http://proxima-sur.blogspot.com/

Data:
Object: Cometa Lovejoy
Camera: Canon 5D MarkII - Filtro Type I unmodified
Telescope: Canon EF 24-105 - Focal Leng 24 mm - f/4
Images:35 x 30 seconds. ISO 3200
Total time: 17.5 minutes.
Program: PixInsight.
Comments: From Trenel - La Pampa - Argentina. Regulars sky conditions

Regards, Alejandro.

Title: Re: February 2012 Contest Images
Post by: dhalliday on 2012 February 15 08:43:31
I am not sure I am "doing this right" by posting a link the the image on a web site....
But not sure how to post them here directly..

Abell21 (Medusa Nebula)
http://www.flickr.com/photos/daveh56/6739300435/sizes/l/in/photostream/

All with 3nm NB filters
ST10
Celestron 25cm Newtonian
6x900 seconds (Binned) each

Dave Halliday
Title: Re: February 2012 Contest Images
Post by: bduyckaerts on 2012 February 17 00:28:11
IC434

5 very cold nights spend with Orion Optics AG8, HEQ5Pro & SBIG STL11000 (22*10min Ha, 8 * 10 min RGB)
A few warm days with PI to process.
Title: Re: February 2012 Contest Images
Post by: Oleg Bryzgalov on 2012 February 17 08:35:01
Nebula IC410 in Auriga (HST version)

This picture was photographed 2011 october-december near Kiev, Ukraine.
Equipment: reflector S&D 254 mm. f/4.7
Mount WhiteSwan-180, camera QSI-583wsg, Tevevue Paracorr-2. Off-axis guidecamera Orion SSAG.
filter set Baader Planetarium.
Ha=19*1500  sec., bin.1
OIII=13*1500 sec. bin2
SIII=14*1500 sec. bin2
Added stars from RGB picture
Processed Pixinsight 1.7 and Photoshop CS5.

More information about  processing.
The image in each filter:
Routine procedures (calibrate, cosmetic correction, star alignment, Image Integration)
Dynamic crop
ABE
MMT
Histogram transformation
Morfological transform (Guided by this remarkable example of processing: http://blog.deepskycolors.com/archive/2011/09/08/star-size-reduction-via-Morphological-.html)
HDRMT
RGB combine

Further processed in Photoshop:
Selective color
removed stars from image
added stars from the RGB image (Lighten blend)
finally applied levels and curves

Regards, Oleg.
Title: Re: February 2012 Contest Images
Post by: gvanhau on 2012 February 17 21:14:41
IC2935 NGC2660 and part of VelaSNR

Date: Jan 22 2012.
Location: Cajon del Maipo  (at about 50Km from Santiago de Chile)
Telescope: William Optics 98FLT + WO Flatenner type IV
Camera: Ir Modiffied Canon XSi 17 frames of 240 seconds at iso 1600
Capture soft: APT
Mount: CG5 + SyncScan kit.
Guiding: PHD + QHY5 + 90/450 refractor
 
100% calibrated and processed in PixInsight.

Steps:
flat cal and integration
light calibration star align and integration using bias and dark library

Background Neutralization
Color Calibration
Masked stretch script
make clone
AthrousWT  in order to remove DSO
Pixel Math on clone in order to remove stars
Curves on RGB to strech DSO (several iterations)
Curves - color saturation on DSO (several iterations)
Curves - color saturation on stars

PixelMath to recombine stars and DSO

classic starmask script - to select small stars
histogram and curves to trim small stars brightness on final image

SNR on green

Other sizes: http://www.flickr.com/photos/astro_gvanhau/6827413511/sizes/l/in/photostream/

Regards
Geert




Title: Re: February 2012 Contest Images
Post by: Howard on 2012 February 18 02:04:58
Hi:

I'd like to submit the attached image of NGC 7635, the Bubble Nebula, to the February contest. This is a reprocessed version of an earlier rendition that I posted in the Gallery in December. The main change was to boost the saturation of the star colours, which were not well handled in the earlier version. PixInsight was used exclusively for the image processing, except for use of CCDInspector to evaluate the subexposures and to monitor overall specs during processing.

Image capture details
Telescope: PlaneWave CDK17, with a focal reducer at f/4.5.
Mount: Paramount ME.
Camera: SBIG STL-4020M.
Exposures: Approximately 12 hours total: about 300 minutes luminance unbinned, and 100 minutes in each of red, green, blue, and Halpha, all with 2x2 binning; 10 minute sub-exposures in all channels.
Flat field correction: using twilight flats.
Image capture: TheSkyX, MaxIm DL, FocusMax.
Image scales: Unbinned pixel size 0.78", frame about 25' on a side.
Imaged on three nights in summer 2011 from rural British Columbia, Canada.

PixInsight processing highlights
LUMINANCE:
Blended Luminance-Halpha (LHa) composite made with Vicent's formula - and tutoring by Harry ; Deconvolution (reduced Aspect ratio and nonzero Rotation to correct for guiding problems on gusty nights); MultiscaleMedianTransform to reduce noise on first two layers; Two applications of HDRMultiscaleTransform, to 6 layers and then 3 layers, with stars masked; MorphologicalTransformations applied separately to small and bright stars (2-way selections to circularize and erode), followed by mild UnsharpMasks; CurvesTransformation to reduce bright star halos; CurvesTransformation to improve contrast on the bubble edge and the most textured part of the nearby nebula, using two "custom" masks; Very mild UnsharpMask to entire image.
CHROMINANCE:
GradientsMergeMosaic used to combine two Halpha sets with different framing (consequence of finding a suitable auto-guide star before/after meridian flip); Blended Red-Halpha (RHa) composite using Vicent's formula; RHaGB ChannelCombination, BackgroundNeutralization, and ColorCalibration; L* channel of RHaGB matched to LHa using LinearFit; LRGBCombine (Lightness=0.5, Saturation=0.25); Histograms and CurvesTransformations for final blackpoint, colour saturation, and contrast.

Best wishes to all!
Howard.
Title: Re: February 2012 Contest Images
Post by: jtalbot on 2012 February 20 19:35:42
[THIS IMAGE WILL PARTICIPATE IN THE MARCH EDITION]

Hi, hope I'm not too late.
An image of LBN 682 I took in the month of Nov 2011. This is a nice reflection nebula although very faint.  It lies within an area of Ha emission which was only faintly visible without the Ha filtered image.  This image is a combination HaLRGB image.
Date: 4-30 Nov 2011
Location: Ocean Springs, MS
Telescope: Stellarvue SV80ST2 f6
Camera: QSI 583
Filters: Astrodon 5nm Ha, LRGB
Mount: MI250
Image Capture: Maxim DL 5

Processing:
Calibrated and subframe alignment with PixInsight
Subframes stacked with image integration tool
DBE on stacked subframes
RGB combine
SCNR on RGB image
Ha combine with RGB using Vicent Peris method, although 20% Ha added to blue and 10% to green to account for H beta.
HaRGB stretch
Luminance Stretch
LRGB image created using LRGB process
color saturation on RGB

(http://www.starscapeimaging.com/resources/LBN682_SV80ST2_Nov11_800.jpg)