Sunday, January 06, 2019

looked into A 666

Had a look-see at the multi-star system A 666 (aka palindromic HD 42924). Pulled the current data from the Washington Double Star database... In particular, I was wondering about the bright star between A and C/D.

06133-0624A   666AB    1904 1995   14  28  37   0.6   0.5  8.91  9.47 G5
06133-0624A   666AB,C  1893 2004   13 318 321 229.1 230.1  8.91  9.25 G5
06133-0624A   666AB,E  1904 2015    4 232 234  24.4  23.8  8.91 13.76 G5
06133-0624A   666CD    1904 2016    7 267 265   5.2   5.2  9.25 14.8  K0

Ah. Found another star. An E companion. But when I reduced the data and plotted it, E showed up to the south-west. Oh.

plot of the 5 elements of multi-star system A 666

So I still don't have an answer per se.

And it suggests there's an E star to view... But I didn't log anything Friday night other than A and C. If the magnitude value of 13.8 is correct, it will need aperture.

And D? Hopeless probably at mag 14.8.

Anyhoo. The system in Monoceros remains on the View Again list. Should go after it with a big OTA to pull out the faint and tight elements.

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