Nova in Delphinus August 2013 (Stephen Migol)

Nova in Delphinus August 2013

Link: http://www.flickr.com/photos/smigol/9518973564/lightbox/

Nova in Delphinus August 2013

Link: http://www.flickr.com/photos/smigol/9518973564/lightbox/

Nova Delphini 2013 (PNVJ20233073+2046041) as seen on August 14, 2013 from the backyard. Images taken at 05:42 UTC on August 15.

Note the appearance of The Blue Flash (NGC 6905) planetary nebula in the upper right.

Taken with a modified, cooled Pentax K10D camera on Stellarvue SV4 refractor.

Three 1200 second sub exposures calibrated with 17 darks, 64 flats, 260 bias with Maxim.

Stacked with DSS.

Processed with PixInsight.

Steps in PI were:

Dynamic crop to trim edges, Dynamic PSF to determine shape, Deconvolution following Manuel Jimenez' instructions, Masked stretch, Histogram stretch, Curves for saturation.

Here's the plate solve output:

Image Plate Solver script version 3.1

=============================================

Referentiation Matrix (Gnomonic projection = Matrix * Coords[x,y]):

-2.55598e-005 +0.000529495 -0.637487

-0.000529386 -2.56429e-005 +1.05923

+0 +0 +1

Projection origin.. [1938.008559 1297.503490]pix -> [RA:+20 23 41.65 Dec:+20 46 04.29]

Resolution ........ 1.908 arcsec/pix

Rotation .......... -87.238 deg

Focal ............. 656.13 mm

Pixel size ........ 6.07 um

Field of view ..... 2d 3' 16.2" x 1d 22' 31.8"

Image center ...... RA: 20 23 41.651 Dec: +20 46 04.30

Image bounds:

top-left ....... RA: 20 20 56.876 Dec: +21 49 31.96

top-right ...... RA: 20 20 33.840 Dec: +19 46 24.89

bottom-left .... RA: 20 26 51.947 Dec: +21 45 30.79

bottom-right ... RA: 20 26 24.133 Dec: +19 42 26.97

=============================================

Please note: The following tables are updated every 24 hours.

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	Distinct awarded users	Total awarded images
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Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
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This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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Mix of multiple sources
Other
Unknown

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Basic pending
Started	...
Astrometry.net job	7501552
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Nova in Delphinus August 2013

Nova in Delphinus August 2013

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Nova in Delphinus August 2013

Nova in Delphinus August 2013

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