2024-01-01:  NGC1555

This is NGC1555 imaged on November 10 and 17, 2023 at Buford Mountain Conservation Area.  The telescope was a 200 mm aperture, 730 mm focal length F/3.65 Boren-Simon PowerNewton Astrograph with 0.73x focal reducer and coma corrector.  The imaging camera was a QSI683wsg-8 with Astrodon II filters and cooled to -15C, with off-axis guiding.  The system was mounted on a Losmandy G11G2 equatorial head on a permanent pier.  The system was controlled with Sequence Generator Pro and PHD2 and the image was processed in PixInsight.

Luminance:  18 frames x 10 minutes binned 1x1.  RGB:  8 frames each x 10 minutes binned 2x2.  Total integration time of 7 hours.  16 darks, bias and flats per filter.

Observation start time ... 2023-11-11 04:53:59 UTC

Observation end time ..... 2023-11-18 05:15:50 UTC

Field of view ............ 1d 21' 33.3" x 1d 1' 24.0"

Image center ............. RA:  4 21 59.098  Dec: +19 31 57.34