M11 Wild Duck Cluster, NGC 6705, 



    
        

            Barry Brook

M11 Wild Duck Cluster, NGC 6705

Technical card

Imaging telescopes or lenses: Orion ED80T CF

Imaging cameras: Orion StarShoot G3 Mono CCD

Mounts: Skywatcher AZ EQ-6 GT

Guiding telescopes or lenses: Skywatcher SW120 F5 refractor

Guiding cameras: Celestron NexImage 5

Focal reducers: TeleVue 0.8x Photo Reducer/Flattener TRF-2008

Software: Cartes du Ciel  ·  Nebulosity 3  ·  EQASCOM  ·  StarTools 1.3.5.286  ·  AstroTortilla 0.7

Filters: Meade CCD LRGB Filter Set 1.25''


Dates:July 22, 2014

Frames:
Meade CCD LRGB Filter Set 1.25'': 30x60" 1C bin 2x2
Meade L (UV & IR-Cutoff) Filter for CCD: 10x120" 1C bin 1x1

Integration: 0.8 hours

Darks: ~5

Flats: ~100

Bias: ~100

Avg. Moon age: 25.47 days

Avg. Moon phase: 17.56%

Bortle Dark-Sky Scale: 6.00

Temperature: 4.00


Basic astrometry details

Astrometry.net job: 323559


Resolution: 620x463

Description

M11, the Wild Duck Cluster in Scutum. A compact, rich galactic cluster containing almost 3,000 stars in an area of 13 arcminutes, almost giving the appearance of a loose globular cluster. One can make out a flying V shape that that looks, to some eyes, like a flock of ducks. About 6,200 light years away.

L: 10 x 2 min, no binning
R: 10 x 1 min, 2x2 binning
G: 10 x 1 min, 2x2 binning
B: 10 x 1 min, 2x2 binning

Darks used to create a bad pixel map, flats taken with a light box

Comments

Histogram

M11 Wild Duck Cluster, NGC 6705, 



    
        

            Barry Brook