Brocchi's Cluster

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mariosi
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Brocchi's Cluster

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Post by mariosi »

The Brocchi's Cluster,
Collinder 399 (Cr 399) is a random grouping of stars located in the constellation Vulpecula near the border with Sagitta. Collinder 399 is known as Al Sufi's Cluster or Brocchi's Cluster. The brighter members of this star cluster form an asterism also known 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 (Wikipedia).

SCOPE: Celestron S.L.T. 130mm F.L 650/f5
EYEPIECE: T/V 40mm plossl
DAY: Sunday DATE: 23/10/16 TIME: 21:30
LOCATION: Mammari

Thanks for looking
Marios
Brocchi's Cluster .jpg
Τριαντάφυλλο.jpg
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bladekeeper
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Re: Brocchi's Cluster

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Post by bladekeeper »

Very nice, Marios, and a beautiful rose too! :)
Bryan
Scopes: Apertura AD12 f/5; Celestron C6-R f/8; ES AR127 f/6.4; Stellarvue SV102T f/7; iOptron MC90 f/13.3; Orion ST80A f/5; ES ED80 f/6; Celestron Premium 80 f/11.4; Celestron C80 f/11.4; Unitron Model 142 f/16; Meade NG60 f/10
Mounts: Celestron AVX; Bresser EXOS-2; ES Twilight I; ES Twilight II; iOptron Cube-G; AZ3/wood tripod; Vixen Polaris
Binoculars: Pentax PCF WP II 10×50, Bresser Corvette 10×50, Bresser Hunter 16×50 and 8×40, Garrett Gemini 12×60 LW, Gordon 10×50, Apogee 20×100

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Don Quixote
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Re: Brocchi's Cluster

#3

Post by Don Quixote »

I love this little group of stars and I am always delighted to show it to guests at the eyepiece.
I ask them if they would like to see the "coat hanger" in the sky. 😊

The rose is a beautiful bonus !
Thank you, Mariosi.
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Refractordude
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Re: Brocchi's Cluster

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Post by Refractordude »

Cr 399 is one of the main objects that hooked me into this hobby. I was just scanning around the night sky with my Orion StarBlast 90mm refractor, and happened upon it.

https://en.wikipedia.org/wiki/Brocchi%27s_Cluster
Telescopes: Celestron 150mm f/8 Refractor, Meade LX70 120mm f/8 Refractor, Vixen 70mm f/12.9 Refractor, Tasco 49N 50mm Red Refractor
Binoculars: Zhumell 20x80 Giant, Oberwerk LW 11x70, Levenhuk Sherman 7x50
Mounts: Orion SkyView Pro Equatorial, Orion Versago II Altazimuth, Farpoint Universal Parrallogram Mount, Orion Tritech II Fluid Head Tripod
Finders: GSO 8x50 Raci, Svbony Red Dot
Diagonals: GSO Dielectric 2", GSO Dielectric 1.25"
Eyepieces: Meade 56mm Plossl, GSO Superview 30mm, Astromania-Olivon 22mm, GSO Plossls 32mm/25mm/20mm, GSO 20mm Superview, Svbony 20mm/15mm/9mm/6mm, Svbony Aspheric 23mm/10mm/4mm, Agena Super Wide Angle 15mm, Few No Name Brand Ebay Plossls
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mariosi
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Re: Brocchi's Cluster

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Post by mariosi »

Thank you for the nice feedback.

Marios
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Refractordude
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Re: Brocchi's Cluster

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Post by Refractordude »

mariosi wrote: Sun Oct 20, 2019 12:17 pm Thank you for the nice feedback.

Marios
cool
Telescopes: Celestron 150mm f/8 Refractor, Meade LX70 120mm f/8 Refractor, Vixen 70mm f/12.9 Refractor, Tasco 49N 50mm Red Refractor
Binoculars: Zhumell 20x80 Giant, Oberwerk LW 11x70, Levenhuk Sherman 7x50
Mounts: Orion SkyView Pro Equatorial, Orion Versago II Altazimuth, Farpoint Universal Parrallogram Mount, Orion Tritech II Fluid Head Tripod
Finders: GSO 8x50 Raci, Svbony Red Dot
Diagonals: GSO Dielectric 2", GSO Dielectric 1.25"
Eyepieces: Meade 56mm Plossl, GSO Superview 30mm, Astromania-Olivon 22mm, GSO Plossls 32mm/25mm/20mm, GSO 20mm Superview, Svbony 20mm/15mm/9mm/6mm, Svbony Aspheric 23mm/10mm/4mm, Agena Super Wide Angle 15mm, Few No Name Brand Ebay Plossls
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