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Lunar Occultations of Close Double and Kepler2 Stars in February 2015 for Australia and NZ


The list shows possible double stars, with separations less than 2", predicted to be occulted by the Moon during February 2015 and visible from parts of Australia or New Zealand. The listing is a very abbreviated version of predictions produced by Occult plus an indication of the region of visibility. Observers need to generate their own precise predictions using Occult.

Observations of all pairs in the list are highly desirable. Those showing an OCc number have been reported as non-instantaneous at a lunar occultation. Confirmation or otherwise of any double nature is wanted.

*** Kepler stars are also included in the list. Light curves for the occultation of these stars are also required. See February 1 and 7. Reporting of these events is still being sorted out, with a system in Occult coming soon. In the meantime please archive any observations of Kepler stars, keeping both the video and the light curve.

The list below is generated by OCCULT for a 25cm telescope. Some of the events may be beyond the reach of smaller telescopes.

Please send reports of all observations of these stars to Brian Loader at palbrl@clear.net.nz, including any made in earlier months and not so far reported. And of course if you observe a stepped event for a star, which is not a known double, please report this. More details about reporting follow the predictions.

==================================================================
 d P    Star  Mag    %         Double details        WDS or   Area of
Feb     No    v   ill      magnitudes sepn    PA?    OCC #    Visibility
 1 d   96343# 8.7   94+ : AB  9.0  9.9  0.59" 270.4  BU  899  ,I
       96343:  *** Kepler star, light curve desired  
 1 d   96427* 8.3   94+ : **  9.0  9.0  0.05" 115.0  OCc 378  AAsBCHMRS,AkChIW
 1 r   96427* 8.3   94+ : **  9.0  9.0  0.05" 115.0  OCc 378  R
       96427:  Graze near Rockhampton
 1 d   96573* 8.2   95+ : **  9.4  9.4  0.10"  90.0  OCc1344  P
 1 d   96647# 8.3   95+ : AB  8.44 9.85 1.00" 103.9  A  2525  P
 1 d    1083# 7.6   95+ : AB  7.71 9.45 0.30"  57.0  HDS 992  AsBR
 2 D    1198  6.1   98+ : **  7.0  7.0  0.20" 130.0  OCc 352  ACHMP,I
 2 r    1198  6.1   98+ : **  7.0  7.0  0.20" 130.0  OCc 352  C
        1198:  graze near Canberra
 2 d   97323# 9.3   98+ : ** 10.0 10.1  0.24" 273.0  OCc1751  BR

 5 r    1505* 8.8   98- : **  9.7  9.7  0.10"  90.0  OCc   7  BCHMS,AkChIW
 7 r    1700  8.6   89- : **  8.5  8.5  0.10"  90.0  OCc 163  ,AkChIW
        1700:  *** Kepler star, light curve desired
 7 r  119062  9.1   89- *** Kepler star, light curve desired  ABCHMRS,AkChIW
 7 r  138479  8.4   88- : **  9.2  9.2  0.05" 350.0  OCc1430  R
 9 r  139281  8.4   74- : AB 8.59 10.40 0.30" 126.0  HDS1867  CHS,AkChIW
10 r    2028  6.5   65- : AB  6.5       0.30"  31.0  CHR  40  AAsBCHMRS,AkChIW
14 r  160757  9.4   25- : ** 10.1 10.1  0.10"  90.0  OCc 535  ,AkChIW
14 R    2555  7.5   24- : BA 10.3  7.6  1.0"  130.9  HU  186  BCRS,AkChW
        2555:  A star is shown as X144366
14 r X145085 10.5   23- : AB 11.2 11.3  0.50" 231.0  TDT 537  HM
14 r X145987!10.7   22- : ** 10.9 11.2  0.07" 125.0  OCc1767  As
14 R  160935  9.1   22- : AB  9.9 10.0  0.30  168.5  A  2254  P 
15 R X 44881# 8.6   14- : AB  8.7  9.8  1.3"  165.5  HU  255  AAsBCMRS
     X 44881: B star is X161276D
15 r  161970# 9.4   14- : AB 10.2 10.2  0.54" 297.4  RST3205  AAs
16 r    2883* 5.5    8- : A   5.5       0.02" 125.4  BUP 197  ,ChW
16 R  162960# 8.9    8- : AB  9.0 11.2  0.31"  72.2  HDS2809  ,ChIW
16 r X 46870  9.9    8- : AB 10.6 10.6  0.45"  46.1  RST4049  ,Ak

21 d X187447 10.6    8+ : AB 10.8 11.0  1.2"  347.0  HEI 420  BR
22 D     181  6.3   16+ : BC  6.3 12.2  1.9"   53.2  BU 1029  ,AkChW
22 d     193  7.9   17+ : **  8.7  8.7  0.10" 133.0  OCc 712  A
25 D     600  6.6   47+ : AB  6.7  9.6  0.30"  91.0  YSC  22  BCHMS,AkChIW
25 D     610  6.1   47+ : **  7.0  7.0  0.05" 358.0  OCc 491  AAsBCHMRS
25 d X 33570  9.1   48+ : AB  9.5 10.9  0.44" 328.3  HEI  35  AsP
26 D     764* 4.9   59+ : AB  5.8  5.8  0.10" 350.7  A  3010  AAsP
27 d     884  8.4   66+ : **  8.6  8.6  0.05"  90.0  OCc1280  ,AkChW
27 d   95127  7.2   68+ : **  8.4  8.4  0.02"   0.0  OCc 450  AAsP
28 d   96011* 8.6   75+ : **  9.4  9.4  0.05" 144.0  OCc1022  ,AkChW
28 d   96090# 8.3   76+ : AB  8.9  9.1  0.30" 173.9  HO  238  BR,Ak
28 D   96110* 7.3   76+ : **  7.5 10.9  0.31"  53.0  OCc 923  AAsBCHMRS,AkChIW
28 D    1040# 6.4   76+ : AB  6.61 8.04 0.22" 151.8  STF 156  BRS,AkW
28 d X 93450! 9.4   77+ : **  9.6 11.8  0.06" 279.0  OCc1750  BR
28 d   96178* 8.5   77+ : **  9.2  9.2  0.05" 153.0  OCc 405  ACHMPS

======================================================================

Visibility codes:
Australia: A Adelaide, As Alice Springs, B Brisbane, C Canberra, H Hobart, M Melbourne, P Perth, R Rockhampton, S Sydney

NZ (following a ,) Ak Auckland, W Wellington, Ch Christchurch, I Invercargill.
----------------------------------------------------------------------
Stars with previous occultation observations: 

#: Observations indicating double - these need further checking
*: Observations not showing double - need confirmation
!: Recent video discoveries - confirmation needed.
?: Uncertain double observation, confirmation or otherwise needed

==================================================================

Reporting Your Observations

The most convenient way of reporting is to use Dave Herald's new version of OCCULT which has a Double Star report option in the Observations editor. Before using it, generate a light curve with Limovie and copy to the clip board. Your graph will be attached to the email which you can then send to palbrl@clear.net.nz.

Otherwise in reporting please include your name and positional data as for other occultations reports, also your telescope type and method of observing and timekeeping.

For each event give the star name and the times of each step of the event with the corresponding accuracy. The limb PA, Rv and Cct of the event would also be useful.

In addition to measures of the PA and separation of binary stars, there is also a need for an estimate of the magnitude difference. An estimate of this can be made from the step sizes shown by Limovie data. So if possible a determination should be made of the size of each step together with an estimate of accuracy.

Please also report cases where a double event is predicted but none detected. These are especially likely with stars shown with an OCc designation


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