Here you have a few more pairs, "Stolen" the Corona Borealis in the night of July 5, 2009.
On this night the atmospheric stability has hovered minimum, so even I dared to measure a double with a separation less than 3 ". ... And without the use of Barlowx2! .... The truth is that it is much more comfortable when taking the pictures, though it complicates the processing of the shots because even with a low turbulence, the resolution is not the same.
temperature between the beginning and end of the session has varied from 24.4 º C to 23.4 º C, relative humidity has ranged from 64% initially and 70% by the end of it. A very slight breeze accompanied me during all night, which despite the excellent seeing maybe some stability has reduced to images.
I have worked with the usual equipment, consisting of a SC LX200R 10 "f/10 QHY-5 but the monkey primary focus and equipped with a Baader IR-UV filter
Block
As a curiosity, note that on this occasion pairs "star" are:
- STT 305AB which, being almost twin STT 304AB, has half their separation. Which makes something more measurement, despite the difference in magnitudes between its components is almost identical.
- HU 1275 a couple whose last measure left dates from 1965 (not yet had born a few of us ...) and its separation of less than 3 "has been begging. Perhaps then try to refine its measures but, when they "target hand" to which I remain to be measured with separations less than 3 ". As I have used calibration pairs 1927/STF 2277/STF STF 2380.
I said, here are action shots and a few "victims" more.
On this night the atmospheric stability has hovered minimum, so even I dared to measure a double with a separation less than 3 ". ... And without the use of Barlowx2! .... The truth is that it is much more comfortable when taking the pictures, though it complicates the processing of the shots because even with a low turbulence, the resolution is not the same.
temperature between the beginning and end of the session has varied from 24.4 º C to 23.4 º C, relative humidity has ranged from 64% initially and 70% by the end of it. A very slight breeze accompanied me during all night, which despite the excellent seeing maybe some stability has reduced to images.
I have worked with the usual equipment, consisting of a SC LX200R 10 "f/10 QHY-5 but the monkey primary focus and equipped with a Baader IR-UV filter
Block
As a curiosity, note that on this occasion pairs "star" are:
- STT 305AB which, being almost twin STT 304AB, has half their separation. Which makes something more measurement, despite the difference in magnitudes between its components is almost identical.
- HU 1275 a couple whose last measure left dates from 1965 (not yet had born a few of us ...) and its separation of less than 3 "has been begging. Perhaps then try to refine its measures but, when they "target hand" to which I remain to be measured with separations less than 3 ". As I have used calibration pairs 1927/STF 2277/STF STF 2380.
I said, here are action shots and a few "victims" more.
-=-= STT 304 AB =-=-
Date: 2009.508
172.48 (sigma theta: 0.25) Med: 10.57 172.51
(sigma rho: 0.094) Med: 10,585
Deltamed = 3.55
-=-= AG 200 =-=-
Date: 2009.508
216.13 (sigma theta: 0.73) Med: 216.05
3037 (sigma rho: 0.025) Med: 3.0405 = 0.42
Deltamed 
KU 53 =-=- -=-=
Date: 2009.508
48.7 (sigma theta: 0.86) Med: 48.72
5245 (sigma rho: 0.081) Med: 5.2535 = 0.89
Deltamed
Date: 2009.508
48.7 (sigma theta: 0.86) Med: 48.72
5245 (sigma rho: 0.081) Med: 5.2535 = 0.89
Deltamed
-=-= STT 305 AB =-=-
Date: 2009.508
263.81 (sigma theta: 0.66) Med: 263.91
5394 (sigma rho: 0.076) Med: 5,383
- STT 305 AC =-= =-=-
Date: 2009.544
182.94 (sigma theta: 0.57) Med: 89 408 182.99
(sigma rho: 0.406) Med: 89,426
Deltamed = 4.5
-=-= =-=-
551 HO Date: 2009.508
79.01 (sigma theta: 1.17) Med: 78,755
7007 (sigma rho: 0.159) Med: 7.0055 = 5.5
Deltamed
-=-= =-=-
ALI 369 Date: 2009.508
338.34 (sigma theta: 0.43) Med: 338.35
8239 (sigma rho: 0123) Med: 8,272
Deltamed = 0.16
-=-= =-=-
HU 1275 Date: 2009.508
173.1 (sigma theta: 0.2) Med: 173.13
2944 (sigma rho: 0155) Med: 2,858
Deltamed = 2.79 
I hope you are to your liking ...
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