||Omega Centauri, NGC 5139, Bennett
61, Best 18,
||13 h 27 min -
47° 29' Centaurus (Cen)
||NGC 5139 is a prime southern
hemisphere showpiece. At mag 3.7, it was recorded by Ptolemy as a
star and Bayer gave it the stellar denomination 'omega'. Finally, it
was Edmund Halley who discovered this wonderful cluster in 1677.
Outliers reach 1 full degree in diameter, but the main region reaches
about 40 arcminutes across, filling the horizontal axis of this
image. An unforgettable sight in any size telescope.
Click on the image for a higher resolution
version. The field of view is 37 x 25 arcminutes with north
towards the top.
||LRGB 60:20:20:20 min @ -25°C
; all exposures 4 min unbinned
||SBIG STL-11000 with Astronomik
Type 2 filterset - selfguided
||RCOS 14.5" Ritchey-Chrétien
||MaxIm DL/CCD, Registar, PixInsight V.1, Adobe
|Location - Date - Time
||San Esteban (Chile) - 07Jun2005 @
||Transparency 8-9/10, Seeing 8/10, Temperature