Messier 92 in HaLRGB

www.astrobin.com/410770

 

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: 2328x1760

 

Dates:May 22, 2019, May 23, 2019, May 25, 2019

 

Frames:

Astrodon B Gen.2 E-series 36mm: 36x180" (gain: 75.00) -20C bin 1x1

Astrodon G Gen.2 E-series 36mm: 72x180" (gain: 75.00) -20C bin 1x1

Astrodon HA 36mm - 5nm: 44x300" (gain: 200.00) -20C bin 1x1

Astrodon L Gen.2 E-series 36mm: 148x180" (gain: 75.00) -20C bin 1x1

 

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

Done