NGC 7078 or Messier 15, a bright globular in Pegasus

NGC 7078, M15, a globular cluster in Pegasus

with a very condensed core.

Hover over the picture for an annotated version

Date:  2 November 2021

FOV:  cropped to 60' × 40'; the angular size of M15 is about 18'

Telescope:  Stellarvue SVX102T + SFFX-1 (714mm, f/7)

Guiding:  ZWO ASI120MM mini mono guide camera,

Stellarvue F050G 50mm guide scope

Computer:  HP laptop running Astro Photography Tools

Mount:  iOptron CEM40

Camera:  ZWO ASI071MC Pro Cooled (0°C) Color CMOS with gain 180

Pixel size:  4.78 μm

Resolution:  1.340 arcsec/pixel

Filter:  Baader Light Pollution Moonglow filter with IR cut

Stacking:  Twenty-one 200 second frames using Deep Sky Stacker

Total Time:  1 hour 10 minutes

Processing:  Pixinsight – SPCC, DBE, SPCC, BlurXT, NoiseXT, GHS, Mask,

PMath GHS + Mask, HDR5, Sat, DynCrop/Scale

Location:  Darling Hill Observatory near Vesper, NY