Brocchi's Cluster

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mariosi
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Brocchi's Cluster

#1

Post by mariosi » Sat Oct 19, 2019 4:03 pm

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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#2

Post by bladekeeper » Sat Oct 19, 2019 8:46 pm

Very nice, Marios, and a beautiful rose too! :)
Bryan
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#3

Post by Don Quixote » Sat Oct 19, 2019 9:00 pm

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.
SCOPES: ES127 f/7.5, ES80 f/6, SW100 f/9. Meade LXD75 8" Sct f/10, Meade 2120 10" Sct f/10, Bresser 152 f/6.5 Newt.
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#4

Post by Refractordude » Sun Oct 20, 2019 12:24 am

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: Meade LX70 120mm f/8 Refractor, Vixen 70mm f/12.9 Refractor, Tasco 49N 50mm Red Refractor
Binoculars: Zhumell 20x80 Giant, Levenhuk Sherman 7x50
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#5

Post by mariosi » Sun Oct 20, 2019 12:17 pm

Thank you for the nice feedback.

Marios
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#6

Post by Refractordude » Mon Oct 21, 2019 3:55 am

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

Marios
cool
Telescopes: Meade LX70 120mm f/8 Refractor, Vixen 70mm f/12.9 Refractor, Tasco 49N 50mm Red Refractor
Binoculars: Zhumell 20x80 Giant, Levenhuk Sherman 7x50
Mounts: Orion SkyView Pro Equatorial, Orion Versago II Altazimuth, Farpoint Universal Parrallogram Mount
Finders: GSO 8x50 Raci, Svbony Red Dot
Diagonals: GSO Dielectric 2", GSO Dielectric 1.25"
Eyepieces: 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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