IC 4628 & COLLINDER 316 REGION

WIDE FIELD IN SCORPIUS

 (Image Centred at ra 16h:55m / dec -41:16)

May 2015 - Camping La Porteña, San Antonio de Areco, Buenos Aires, Argentina

DATA

Type: Wilde field area

Apparent Magnitude: 3.4 for Collinder 316

Image FOV: roughly 5º x 3.4º

Distance: 6.000 light years for IC 4628

IMAGE INFORMATION

INSTRUMENT: Canon EF 2.8 / 200 mm stopped at f4 lens

CAMERA: Canon 60Da

FILTERS: none

SKY CONDITIONS: rural skies

EXPOSURES: 16 x 5 minutes 

OBJECT DESCRIPTION AND IMAGE SESSION

A must to see area during fall and winter in the Southern Hemisphere. The image is dominated in its center by open star cluster Collinder 316 of about 105 arcs minutes in extension and Magnitude 3.4 A stunning group of stars is a delightful target for binoculars. This group of stars it is frequently called the "the false comet".

IC 4628 is also present close to the center of the image. It is an impressing arc shaped rim of HII structure. The  nebula is also known as Gum 56 after Australian Astronomer Collin Gum who catalogued emission nebula using wild field astrophotography.

There are many interesting objects in the area. Below is the a image with levels.