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Lunar Occultations of Close Double Stars in February 2014 for Australia and NZ


The list shows possible double stars, with separations less than 2", predicted to be occulted by the Moon during February 2014 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.

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   Moon        Double details        WDS or   Area of
Feb                  %                                OCC no.  Visibility
 6 d   93074  9.2   46+ : **  9.6  9.6  0.10"   37.0  OCc 922  AAsBR
 6 d X  3664  9.2   46+ : AB  9.6 10.6  0.041" 191.6  HU 1045  AM
 7 d   93480  8.6   56+ : **  9.4  9.4  0.050" 105.0  OCc1032  BR,AkChW 
 8 D     654  6.0   66+ : **  6.8  6.8  0.10"   71.0  OCc 921  BR
 8 D     668  3.5   66+ : Aa,Ab 3.6 6.0 0.20"  108.0  WSI 53   AAsBCRS
 9 d X 73360  9.0   74+ : AB  9.1  9.6  1.6"   252.8  STF 665  BR
     X 73360:  B is X 6728
10 D     940  5.8   83+ : Aa,Ab 5.8     0.10"  137.7  CHR 163  AAsCHMPS,ChIW
10 d   95361  8.0   83+ : **  8.9  8.9  0.10"  303.0  OCc 605  AAsBCHMPRS
10 d   95391  9.2   83+ : **  9.9  9.9  0.30"   47.0  OCc 431  AAsPR
10 d   95426  8.7   83+ : **  9.4  9.4  0.10"  236.0  OCc 604  As
11 d X 96107  9.5   89+ : AB  9.9 10.6  0.30"  172.9  A 2460   BS
11 d   96343  8.7   89+ : AB  9.0  9.9  0.59"  270.3  BU 899   ABCHMRS,AkChIW
11 d   96427  8.3   89+ : **  9.0  9.0  0.050" 115.0  OCc 378  AAsBCHMPRS
11 d   96573* 8.2   90+ : **  9.4  9.4  0.10"   90.0  OCc1344  P
12 d   97207  8.5   94+ : **  9.5  9.5  0.050" 350.0  OCc 368  ,AkChIW
12 d   97223  8.5   94+ : **  9.2  9.2  0.050" 350.0  OCc 369  B,AkChIW
12 D    1190* 7.2   95+ : **  7.9  7.9  0.03"  158.0  OCc 379  AsBRS
12 d   97376* 9.0   95+ : **  9.5  9.5  0.08"  281.0  OCc 381  As
13 d   98057! 9.2   98+ : **  9.6 10.4  0.08"  103.6  OCc1729  BR

15 r  118241# 7.4   99- : AB  7.99 8.30 0.90"  312.5  STF1426  ACHMPS
      118241:  B is X117966
18 r  138857  8.1   88- : AB  8.49 9.34 0.07"  257.7  RST4502  AAsBCMRS,AkChIW
20 R  158532  7.9   70- : AB  8.0 10.2  0.20"  230.9  HDS2027  AAsMP
21 r X 39134 10.0   61- : AB 10.8 10.6  0.31"   56.4  RST3912  BCHMRS,I
22 R  159786  7.7   49- : AB  9.9  7.9  0.037"  12.1  CHR 233  AsBCMRS
22 r  159795  8.8   49- : **  9.5 10.1  0.35"  253.0  OCc 519  AsRS
23 r  160378  8.6   38- : **  8.9  9.5  0.040"  66.0  OCc 992  ACMP
24 r  160994  8.4   29- : AB  8.8  9.8  0.40"  153.7  A 2256   ,ChI
24 R X 43398  7.4   28- : **  8.8  8.8  0.050" 350.0  OCc1528  ABCHMRS,AkChIW
24 R    2647  6.5   26- : **  7.2  7.2  0.10"  270.0  OCc  12  AsP
24 R    2653  6.8   26- : AB  7.2  8.2  0.50"  139.3  BU 639   p
25 r  162251  8.1   18- : **  9.2  9.2  0.10"   90.0  OCc1570  BCHMS,AkChIW
25 r  162460  9.2   17- : AB  9.3 11.3  0.30"   51.0  RST3221  AsP
26 r  163440  7.5    9- : AB  7.6 10.5  1.20"  252.8  RST4057  AAsP
      163440:  B is X173716

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

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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