IC1848 Soul nebula in HA
After fixing a badly tilting focuser on the Skywatcher ED80 and guiding problems due to the differential flexure introduced by having the QHY5 - 8x50 Finder set-up a bit higher than it should be with a finder shoe, It was prime time for testing long subs in the 20+ minutes exposures. Soul nebula is a rewarding target for Hydrogen Alpha acquisition, and i will be revisiting for OIII and SII.
Enjoy!!
Westerhout 5 (Sharpless 2-199, LBN 667, Soul Nebula) is emission nebulae in Cassiopeia. Several small open clusters are embedded in the nebula: CR 34, 632, and 634 (in the head) and IC1848 (in the body).
The object is more commonly called by the cluster designation IC1848.
Small emission nebula IC 1871 is present just left of the top of the head, and small emission nebulae 670 and 669 are just below the lower back area.
This complex is the eastern neighbour of IC1805 (Heart Nebula) and the two are often mentioned together as the "Heart and Soul".
SW ED80
SBIG 8300M
HEQ5 Pro
Guiding camera: QHY CCD QHY5 mono
Filters used: Baader LRGB
Starlight Xpress Starlight Xpress FW 5*2"
Resolution: 3187x2317
Baader 7nm Ha 2'': 12x1200" -5C bin 1x1
Integration: 4 hours
Darks: ~50
Flats: ~15
Bias: ~300
Avg. Moon age: 2.43 days
Avg. Moon phase: 6.52%
Bortle Dark-Sky Scale: 8.00
Temperature: 24.00
RA center: 56.989 degrees
DEC center: 24.176 degrees
Pixel scale: 2.135 arcsec/pixel
Orientation: -7.715 degrees
Field radius: 1.130 degrees
Locations: Athens, Greece
Dates: Sept. 16, 2015
Projection origin.. [1593.891365 1158.969761]pix -> [RA:+02 54 43.67 Dec:+60 26 56.03]
Resolution ........ 2.132 arcsec/pix
Rotation .......... -1.739 deg
Focal ............. 522.56 mm
Pixel size ........ 5.40 um
Field of view ..... 1d 53' 13.1" x 1d 22' 18.7"
Image center ...... RA: 02 54 43.779 Dec: +60 26 57.06
Image bounds:
top-left ....... RA: 03 02 22.459 Dec: +61 08 59.50
top-right ...... RA: 02 46 45.300 Dec: +61 05 29.85
bottom-left .... RA: 03 02 23.297 Dec: +59 46 41.34
bottom-right ... RA: 02 47 24.820 Dec: +59 43 20.36
Captured with Main Sequence Software SequenceGeneratorPro
Processed in PixInsight
