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Frustrating Lyra Doubles

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#26 7331Peg

7331Peg

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Posted 12 July 2013 - 02:20 PM

Just checked the Bright Star Catalog (go to the WDS info after you enter the SAO number in the search box at the bottom of the page) and you're correct, SAO 67612 is BU 648. The separation for 2013 is 1.206" (from the WDS Ephemerides table, which is HERE). You'll need to scroll the left column down to 18570+3254 to see the data.

The magnitudes are 5.34 and 7.96, so it's definitely a tough one.


John :refractor:

#27 ggalilei

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Posted 12 July 2013 - 03:43 PM

Thanks for the info John! I'll try it again: it was a difficult split in the 18" aperture, partly due to my approximate collimation methods. It will make a nice challenge for smaller and better collimated scopes.

#28 inZet

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Posted 08 September 2013 - 04:06 PM

You are welcome.

Let me add that I have yet to come across a fast moving binary in Stelle Doppie that has correct info in the "sep. now" field---this is clearly a bug in the system. This is odd because for all binaries for which a table a projected separations by year are listed, the data is listed with fidelity from the original data as listed in the 6 th orbit catalog.

I will send the creator of Stelle Doppie a note alerting him to this problem.


I thought I corrected this bug. Or not?
Send me an email to inzet -at- yahoo dot com with details.

Gianluca






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