M56 (Tom Victor) - AstroBin

Celestial hemisphere: Northern · Constellation: Lyra (Lyr) · Contains: M 56 · NGC 6779

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M56

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M56

This rather dim globular cluster known as M56 is located in the constellation Lyra. The diameter of the bright cluster is believed to be only 60 light-years, and is located about 45,000 light-years from Earth. This cluster is lacking the bright core which most globulars have. This stellar swarm is approaching Earth at the high velocity of 145 km/sec. Data collection is done by my Danish friend Michael Stauning and myself.

Data info from Michael Stauning:

Place: Holbæk - 55 42 45N, 11 44 04E
Date: [url=tel:24/8 2009]24/8 2009[/url]
Time: 23:46 til 02:19
Weather: 16 grader, meget klart god seeing, let til frisk vind. Hårde vindstød.
MPSAS: 19,9
NELM: 5.43
Mont: Celestron CGE
Teleskop#1: Celestron C8 XLT Karbon f/6,7
Teleskop#2: Takashi FS-60 f/6,2
Guideskop: Celestron C8 XLT Karbon f/6,7.
Camera#1: Sbig ST-2000xm+AO-8
Camera#2: Starlight Xpress M8C.
Guider: Intern Sbig ST-2000xm
Filter: Astronomik: LRGB
Temp Kamera: -20 ¤ C.
Subframes#1: 14 x 300 Lum, 5 x 300 RGB.
Subframes#2: 6 x 1200 OSC (One shoot Color).
Expotime: 4200 sek L, 11700sek x RGB
Total time: 265,00 min
Guidetime: 0,005 sekund.
Program: MaxImDL 4,62, Adobe Photoshop CS3.
Imagescale: 1,10"
Stack: Median.
Darks, Bias og flat.

My data:
RA 19h 16m 35s, Dec 30d 11m 12s
Pos Angle +170° 06
FL 1750 mm.
Image scale 0.87"/arcsec/pix.

Optics and mount: Meade 10" ACF f/7 on Takahashi Em-200
Camera: Artemis 4021. Guided with MiniBorg 60ED and DSI pro II.
Filters: LRGB Astrodon Gen. 2
Exposures: L:11 x 300 RGB: 6 x 300 all bin 1x1.
Software: Maxim DL (Guiding, calib), Photoshop CS2.
Date and Location 31.08.2009 / 59 11 47.83 N. - 10 22 29.33 E

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Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

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
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

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
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
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 success
Started	...
Astrometry.net job	9353815
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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