NGC 6164 / 65 - BIPOLAR NEBULA

Norma

(ra: 16,34.0 / dec -48:06)

Ha Version click here

DATA

TYPE: Cluster Associated with Nebulosity

APPARENT MAGNITUDE: NA / 6.77 for the central star

SIZE: NGC 6164 1x0.3  arcs minutes & NGC6165 2 x 0.5 arcs minutes

SIZE: NGC 6164 / 65 complex roughly 6 arcs minutes

DISTANCE: 4200 light years

OBJECT DESCRIPTION

According David Malin, NGC 6164-5 is an unusual object associated to an unusual star in the constellation of Norma. The star at the centre is HD 148937 and is a massive star shining at 6.77 near its live end stage. The star is so hot that the ultraviolet light excites the gas around it. The gas is expulses by the solar wind and is channelled by its magnetic field creating a symmetric shape also called bipolar shape. The gases are extended  to 4 light years. In the Image NGC 6165 is in the upper right side and NGC 6164 in the lower left

The image was shot the same night as IC 2944. I believe the Moon brightness killed some dim stars, nevertheless I am very happy with the results. The Luminance channel was useless because some spikes were generated with the sleeves of my nice backyard tree. So in its place the red channel was used.

IMAGE INFORMATION

SCOPE: Celestron SCT C8 at (roughly) f6.3

MOUNT Vixen GPDX mount with Sky Sensor 2000

SKY CONDITIONS: visual limit magnitude 4. Bright Moon

CAMERA: Starlight SXVF H9

FILTERS: Astronomik, Type II, Ha 6nm, IDAS LPS II for Luminance

EXPOSURES: Total 68 minutes RHaRGB (16,20,16,16,16) 240 seconds subs

GUIDING: Synta 70/400 Refractor. SXV Guide Head

IMAGE ACQUISITION: Astro Art and CCD Control Interface 3.72

CALIBRATED: ImagesPlus (no darks removed) PROCESSING: Photoshop CS

DATE: July 14, 2008

NGC 6164 / 65 - BIPOLAR NEBULA

Crop in Ha

Norma

(ra: 16,34.0 / dec -48:06)