Messier 92 (NGC 6341) is a globular cluster of stars in the northern constellation of Hercules.
M92 is at a distance of about 26,700 light-years away from Earth and has an estimated mass of up to 330,000 solar masses in 250,000 stars.
With an estimated age of 14.2 billion years – almost the same age as the universe itself – M92 is one of the oldest clusters known and possibly the single oldest globular in the Milky Way.
(descripton credits: Wikipedia)
Technical card
Imaging telescope or lens:Altair Astro RC250-TT 10″ RC Truss Tube
Imaging camera:ZWO ASI1600MM-Cool
Mount:Astro-Physics Mach-1 GTO CP4
Guiding telescope or lens:Celestron OAG Deluxe
Guiding camera:QHYCCD QHY5III174
Focal reducer:Riccardi Reducer/Flattener 0.75x
Software:Main Sequence Software Seqence Generator Pro, Astro-Physics AAPC, Pleiades Astrophoto PixInsight
Filters:Astrodon L Gen.2 E-series 36mm, Astrodon HA 36mm – 5nm, Astrodon B Gen.2 E-series 36mm, Astrodon G Gen.2 E-series 36mm, Astrodon R Gen.2 E-series 36mm
Accessories:ZWO EFW, MoonLite NiteCrawler WR30
Resolution: 2328×1760
Dates:May 22, 2019, May 23, 2019, May 25, 2019
Frames:
Astrodon B Gen.2 E-series 36mm: 36×180″ (gain: 75.00) -20C bin 1×1
Astrodon G Gen.2 E-series 36mm: 72×180″ (gain: 75.00) -20C bin 1×1
Astrodon HA 36mm – 5nm: 44×300″ (gain: 200.00) -20C bin 1×1
Astrodon L Gen.2 E-series 36mm: 148×180″ (gain: 75.00) -20C bin 1×1
Integration: 16.5 hours
Avg. Moon age: 19.57 days
Avg. Moon phase: 75.34%
Astrometry.net job: 2749648
RA center: 259.281 degrees
DEC center: 43.137 degrees
Pixel scale: 1.006 arcsec/pixel
Orientation: 269.910 degrees
Field radius: 0.408 degrees
Locations: AAS Montsec, Àger, Lleida, Spain
Data source: Own remote observatory
Remote source: Non-commercial independent facility
via Flickr https://flic.kr/p/2gfKZiq