NGC 6205 or Messier 13 in Hercules

NGC 6205, M13, The Great Hercules Globular.

Hover over the picture for an annotated version

Date:  24 April and 23 May 2024

FOV:  cropped to 60' × 40'; the angular size of M13 is about 20'

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

Guiding:  ZWO ASI120MM mini mono guide camera,

Stellarvue F050G 50mm guide scope

Computer:  ASIair pro Raspberry Pi

Session 1:  24 April 2024

Mount:  iOptron CEM40

Camera:  ZWO ASI6200MC Pro Cooled (-10°C) Color CMOS with gain 100

Pixel size:  3.76 μm

Resolution:  1.052 arcsec/pixel

Filter:  none

Session 2:  23 May 2024

Mount:  ZWO AM5

Camera:  ZWO ASI071MC Pro Cooled (-10°C) Color CMOS with gain 90

Pixel size:  4.78 μm

Resolution:  1.337 arcsec/pixel

Filter:  Baader Semi APO

Stacking:  one hundred sixty-five 240 second frames using Pixinsight

90 frames 24 April 2024

75 frames 23 May 2024

combined linear images using PixelMath ScreenBlend in Pixinsight

Total Time:  11 hours

Processing:  Pixinsight – SPCC, DBE, SPCC, BlurXT, NoiseXT, HST, GHS, MStr,

PMath add MStr + GHS + HST, HDR4 galaxies, Sat, DynCrop

Location:  Darling Hill Observatory near Vesper, NY