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Contains:  M 11, NGC 6705, Wild Duck cluster
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M11 LRGB, 



    
        

            Sergiy_Vakulenko
M11 LRGB
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M11 LRGB

Technical card


Resolution: 3000x2300

Dates:June 1, 2019

Frames:
Baader Blue 36 mm: 40x180" bin 1x1
Baader Green 36 mm: 20x180" bin 1x1
Baader Luminance 36 mm: 59x180" bin 1x1
Baader Red 36 mm: 20x180" bin 1x1

Integration: 7.0 hours

Darks: 0

Flats: 0

Flat darks: 0

Bias: 0

Avg. Moon age: 27.55 days

Avg. Moon phase: 4.36%

Bortle Dark-Sky Scale: None

Mean SQM: None

Mean FWHM: None

Temperature: None


Basic astrometry details

Astrometry.net job: 3080735

RA center: 18h 49' 55"

DEC center: -6° 2' 49"

Pixel scale: 2.138 arcsec/pixel

Orientation: 175.144 degrees

Field radius: 1.122 degrees


Locations: Remote observatory, Kiev, Ukraine

Data source: Own remote observatory

Remote source: Non-commercial independent facility

Description

The Wild Duck Cluster (also known as Messier 11, or NGC 6705) is an open cluster of stars in the constellation Scutum (the Shield). Its popular name derives from the brighter stars forming a triangle which could resemble a flying flock of ducks. The cluster is located just to the east of the Scutum Star Cloud midpoint.

The Wild Duck Cluster is one of the richest and most compact of the known open clusters. It is one of the most massive open clusters known, and it has been extensively studied. Its age has been estimated to about 316 million years. The core radius is 1.23 pc while the tidal radius is 29 pc. Estimates for the cluster's mass range from 3,700 M☉ to 11,000 M☉, depending on the method chosen. The brightest cluster member is visual magnitude 8, and it has 870 members of at least magnitude 16.5.
(c) Wikipedia

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Sergiy_Vakulenko
Sergiy_Vakulenko
License: Attribution Creative Commons
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M11 LRGB, 



    
        

            Sergiy_Vakulenko