Hemisphere:  Northern  ·  Constellation: Vulpecula (Vul)  ·  Contains:  4 Vul  ·  5 Vul  ·  7 Vul  ·  IC1299  ·  NGC 6802  ·  NGC6802  ·  PK055+01.1  ·  PK055+02.1  ·  PK055+02.2  ·  PK055+02.3  ·  Sh2-83  ·  The star 4Vul  ·  The star 5Vul
Getting plate-solving status, please wait...
The "Coathanger" Brocchi's Cluster, 



    
        

            Barry Wilson
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The "Coathanger" Brocchi's Cluster

Getting plate-solving status, please wait...
The "Coathanger" Brocchi's Cluster, 



    
        

            Barry Wilson
Powered byPixInsight

The "Coathanger" Brocchi's Cluster

Imaging telescopes or lenses: Takahashi FSQ-106EDXIII

Imaging cameras: QSI683wsg

Mounts: 10 Micron GM1000HPS

Guiding telescopes or lenses: Takahashi FSQ-106EDXIII

Software: Sequence Generator Pro  ·  PixInsight 1.8 Ripely

Filters: Astrodon E-Series Green filter  ·  Astrodon E-Series Blue filter  ·  Astrodon E-Series Red filter

Accessory: Lakeside Astro Motor Focus System


Dates:July 24, 2020

Frames:
Astrodon E-Series Blue filter: 60x300" (5h) bin 1x1
Astrodon E-Series Green filter: 60x300" (5h) bin 1x1
Astrodon E-Series Red filter: 60x300" (5h) bin 1x1

Integration: 15h

Avg. Moon age: 4.09 days

Avg. Moon phase: 17.75%


Astrometry.net job: 3825921

RA center: 19h 26' 7"

DEC center: +20° 26' 24"

Pixel scale: 2.160 arcsec/pixel

Orientation: 179.300 degrees

Field radius: 1.597 degrees


Resolution: 4324x3102

Locations: Entre Encinas y Estrellas E-EyE, Fregenal de la Sierra, Extremadura, Spain

Data source: Own remote observatory

Remote source: e-EyE Extremadura

Description

From Wikipedia: "Brocchi's Cluster (also known as Collinder 399, Cr 399 or Al Sufi's Cluster) is a random grouping of stars located in the constellation Vulpecula near the border with Sagitta. The members of the star cluster form an asterism which has given rise to its name as the Coathanger. It was first described by the Persian astronomer Al Sufi in his Book of Fixed Stars in 964. In the 17th century, it was independently rediscovered by the Italian astronomer G. B. Hodierna. In the 1920s, Dalmero Francis Brocchi, an amateur astronomer and chart maker for the American Association of Variable Star Observers (AAVSO), created a map of this object for use in calibrating photometers. In 1931, Swedish astronomer Per Collinder listed it in his catalogue of open clusters."

A delightful star field across this two panel mosaic.

Data acquisition: Barry Wilson & Steve Milne
Processing: Barry Wilson

Comments

Sky plot

Sky plot

Histogram

The "Coathanger" Brocchi's Cluster, 



    
        

            Barry Wilson