Messier 27 68mm Refractor, 37,5X Observation with UHC-Filter August 22th and 23th, 2016 Observation and sketch by Gabriele Houtermans Location: Baindt near Ravensburg, Germany
Hónap: 2016. szeptember
Comparison between two sketches of Messier 55
Messier 55 Comparison between two sketches: Left with 406mm Newton, right with 25X100 Binocular.
Dr. Johannes Schilling – Messier 55
Messier 55, a splendid globular cluster in Sagittarius Sketch with 406mm Newton, 109X August 22th and 23th, 2016 Both evenings with very clear sky for this object with declination of -31° Magnitude: 7m Size: 15′ Distance: 18 000 Ly Location: Baindt near Ravensburg, Germany