IC 2220

TOBY JUG (aka BUTTERFLY NEBULA)

(ra: 07h 57m 15s/ dec -59º 09' 58'')

CLICK IN THE IMAGE FOR A HIGH RESOLUTION VIEW

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

DATA

TYPE: Reflection Nebula

VISUAL BRIGHTNESS: Central Star HD 65750 or V341 Carinae 6.2 - 7.1

APPARENT DIAMETER: 5 X 5 arc minutes

DISTANCE: 90 parsecs

IMAGE INFORMATION

SCOPE: ORION OPTICS UK 6" f5 Newtonian

CAMERA: QSI 583 WS

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

FILTERS: Baader LRGB Set

SKY CONDITIONS: Rural Skies.

EXPOSURES: LRGB (60,30,20,30)

OBJECT DESCRIPTION AND IMAGE SESSION

IC2220 is the result of the reflection of gas and star material coming ejected from the red giant HD 65750. It is clearly visible that the material emitted from the red star is not displaced equally in all directions. It is thought that the material is distributed via magnetic fields, electric fields or the rotation of the central star giving an irregular shape. Astrophotographer David Malin called this object the Toby Jug Nebula after the ornamental English drinking vessel or beer mug. For some others the shape resembles a similarity with a flying butterfly.

The object is located approximately at 1º 40' from open cluster NGC 2516.