CG4

COMETARY GLOBULE IN PUPPIS

(Image centered at ra: 07h 34.16/ dec -46º 64')

December 2012, -  Camping La Porteña, Areco, Buenos Aires - Argentina

DATA

TYPE: Cometary Globue

APPARENT MAGNITUDE: n/a

APPARENT DIAMETER: Image FOV 60 x 46 arc minutes

DISTANCE:  CG4 1300 light years / ESO 257-19 118 Mio light years

IMAGE INFORMATION

SCOPE: ORION OPTICS UK 6" f5 Newtonian

CAMERA: QSI 583 WS

MOUNT: NEQ6

GUIDING: LodeStar in Synta 70/400 refractor / PHD Guiding

FILTERS: Baader LRGB Set

SKY CONDITIONS: Rural Skies.

EXPOSURES: LRGB (80,30,30,30)

OBJECT DESCRIPTION AND IMAGE SESSION

Cometary globules are typically characterized by dusty heads and elongated tails. These features cause cometary globules to have visual similarities to comets, but in reality they are very much different. Globules are frequently the birthplaces of stars, and many show very young stars in their heads. The reason for the rupture in the head of this object is not completely known.

The galaxy on top is ESO 257-19 a spiral galaxy that appears elongated because it is inclined to our field of view. It is very far in the distance, and only placed near CG4 because our view in perspective from Earth. (*)

(*) Free adaptation from NASA APOD