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


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

**********************************************************************************
A total eclipse of the moon occurs on October 8 visible from most of Australia and New Zealand. While no double star occultations are listed for that date, many stars will be occulted during it, they may provide good hunting ground for new doubles. During the eclipse the asteroid (37) Fides, magnitude 9.8, will be occulted. The disappearance occurs during totality, the reappearance occurs at the remaining dark portion of the partially eclipsed moon. Visible lunar occultations of asteroids are *very* rare, this is an opportunity to see one. It is added to this list as a reminder. Again accurate predictions can be generated by Occult. You may need to add Fides to the list of asteroids Occult will check for lunar occultations. This is done from the lunar occultation prediction entry screen. **********************************************************************************
 d P    Star  Mag    %         Double details        WDS or   Area of
Oct      No    v   ill      magnitudes sepn    PA°   OCC #    Visibility
 1 d X152730 10.2   46+ : AB 10.7 11.0  0.50"  91.0  TDT 754  AAsP
 1 d X152961 10.4   46+ : AB 10.6 11.3  1.3"  250.0  TDT 759  P
 1 d  161282  8.9   46+ : Aab 9.5 10.1  0.40" 130.0  TDT 781  AAsCHMPS
 1 D  161338  7.0   47+ : **  7.4  9.0  0.9"  315.0  OCc1541  AAsCHMPS
 2 D  162251  8.1   56+ : **  9.2  9.2  0.10"  90.0  OCc1570  ABCHMRS,Ak
 2 d X166437  9.9   58+ : AB 10.5 10.9  0.50" 310.0  TDT1352  P
 2 D    2827  4.5   59+ : **  4.8  5.8  0.01" 350.0  OCc1575  AHMP
 3 d X172674 10.0   67+ : AB 10.0 10.0  1.3"  41.8   HLD 154  ,AkChIW
     X172674:  B star is X 47531
 3 d  163469! 9.1   70+ : **  9.7 10.0  0.02" 125.2  OCc1727  P
 4 d  164231  9.2   79+ : **  9.2 10.4  0.02" 228.1  OCc 420  AAsBCMPRS
      164231:  graze close to Melbourne 
 5 d  145799! 9.0   87+ : **      10.7 0.015" 265.5  OCc1688  ,AkChIW
 5 d    3230* 8.4   87+ : **  9.2  9.2  0.10" 131.0  OCc 869  BCHRS
 6 d  146406! 8.6   94+ : **  8.8 10.3  0.03" 274.8  OCc1675  ,Ak
 6 d  146434  7.8   94+ : AB  7.9 10.8  0.70" 227.5  HDS3274  H,AkChIW
 7 d  128445* 8.6   98+ : AB  8.6 11.2  1.87"  71.0  RST5491  ,AkChW
 7 D       1  7.2   99+ : AB  7.4 9.36  1.61" 159.9  BU  281  AsPR
 ***********
 8 D   Fides  9.8   0E 179     19  67  65U  52 183  76        AAsBCHMRS,AkChIW
   Duration of planetary disk occultation: predicted time +/-0.1 secs
 8 R   Fides  9.8   6E 179     30  55  58U 260  37 284        AAsBCHMPRS,AkChIW
   Duration of planetary disk occultation: predicted time +/-0.1 secs
************
 8 r     146* 4.3  100- : **  5.2  5.2  0.25"  29.0  OCc 480  CHMS,AkChIW
 9 r     272* 5.9   99- : **b 6.7  6.7  0.10" 121.0  OCc 435  CHM,AkChIW
 9 r X  2822  8.3   98- : AB  8.6 10.52 1.70" 143.0  A  2216  CHM
10 r X 63280  7.9   95- : AB  7.9 10.65 0.73" 124.6  HU 1046  ,Ak
     X 63280:  B star is R 406 (?)
12 r   94143  9.0   79- : AB  8.9       0.40" 107.0  GUE   7  AAsBCHMRS,Ak
12 r     744  9.5   78- : AB  9.7 11.5  0.48" 241.1  COU 709  P
13 r   94763# 8.8   70- : AB  8.8  9.8  1.0"  329.7  STF 770  BCRS,AkChIW
13 r     884  8.4   69- : **  8.6  8.6  0.05"  90.0  OCc1280  P
14 r   96011* 8.6   60- : **  9.4  9.4  0.05" 144.0  OCc1022  A
16 r   97687  9.8   41- : **  9.7 10.3  0.25" 135.6  OCc 334  ,AkW
19 R  118410  7.1   16- : AB  7.69 8.16 1.81" 333.4   STF1457 BCHS
      118410:  B star is X118941

26 D    2308  7.9    7+ : AB  7.6  9.0  1.0"   49.0  KOU  51  P
27 d X 41857 10.6   13+ : AB 11.0 12.4  0.50" 112.0  RST3066  P 
28 d  160935  9.1   21+ : AB  9.9 10.0  0.30" 168.5  A  2254  AAsBCHMRS,ChW
28 d X 43137 10.6   21+ : AB 11.1 11.2  0.51" 339.6  RST3140  ACHM
28 D  160994# 8.4   22+ : AB  8.8  9.8  0.40" 153.7  A 2256   AAsCMPRS,Ak
29 d X 44881# 8.6   30+ : AB  8.7  9.8  1.3"  165.5  HU  255  ,AkChIW
     X 44881:  B star is X161276
29 d  161970# 9.4   31+ : AB 10.2 10.2  0.54" 297.4  RST3205  As
29 d X162706 10.4   32+ : AB 11.0 11.4  1.5"  123.0  RST3209  AAsP,Ak
30 D    2905  6.5   42+ : AB  9.25 6.61 0.30"   9.1  CHR  90  ,ChI
31 D    3054* 6.4   54+ : AB  6.4       0.20" 183.0  CHR 101  CHM,AkChIW
31 d  163985# 9.2   54+ : AB  9.9  9.9  0.30"  58.1  HU   81  AAsBCHMPRS
======================================================================

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.
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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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