Goodness me, folks! We have only had 6 days so far in 2020, but I have managed to have 3 reasonably good observing nighttime sessions with my William Optics 158 mm apochromatic refractor which is supported by a Berlebach Planet altazimuth mount. I also use a 70 mm F/6 small apochromatic refractor which I have as my finder scope. Mirror diagonals are both fitted on both scopes. That means my north & and south are not inverted; but my east & west are
All my figures can be checked on www.stelledoppie.it
Each of these celestial objects are near Alpha Cassiopeiae (Schedar) and Delta Cassiopeiae (Ruchbah).
1. ES 2 is a faint but true binary discovered by the Reverend Thomas Espin. The magnitudes are 9 and 9.5. Sep = 5.9". PA = 113 degrees. It is my first time to see it. My scope split it well at 112X.
2. Sti 1364 is an optical double discovered by a Roman Catholic priest called Johann Stein. It is seriously faint with magnitudes 9.8 and 11. Sep = 14.7". PA = 9 degrees. I observed the split at 40X and 112X.
3. STT 33 is a very fine optical triple star near Delta Cassiopeiae (Ruchbah). The magnitudes are 7.3, 9 and 10.3. Sep's = 26.9" & 107". PA's = 77 and 109 degrees. The colours are blue (B9), almond brown (K7) and white. It looked truly charming at 40X and 112X. That B companion is my 2nd K7 star of the night.
4. ES 1712 is an optical double star. The magnitudes are 7.9 and 9.3. Sep = 47.2". PA = 2 degrees. I had a successful split at 40X. But 112X did it justice too.
5. HJL 1088 is a true binary. But the C star is optical. The primary is blue, but the other 2 are white. Sep's = 19.5" and 107.2". PA's = 168 and 218 degrees. Very nice and wide at 40X. They resemble a wide "V".
I had no success whatsoever with Stt 9 or J 872. It was quite a windy night with an 11.5 day old Moon shining brightly in the southern sky.
Thank you for reading.
Comments are well received at all times.
Clear skies from Aubrey.