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


The list shows possible double stars, with separations less than 2", predicted to be occulted by the Moon during January 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 January 10, 16 and 31. 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
Jan     No    v   ill      magnitudes sepn    PA?   OCC #    Visibility
 1 D     532* 7.1   86+ : **  8.0  8.0  0.032" 79.0  OCc1210  HM,ChIW
 3 D   94684  7.2   97+ : AB  7.23 10.9 0.80"  69.3  HDS 749  ACHMPS
 3 d   94763# 8.8   98+ : AB  8.8  9.8  1.0"  329.7  STF 770  P
 5 r   96791  7.8  100- : **  8.7  8.7  0.05" 350.0  OCc 374  AAsBCMPS
 5 r   96794  8.0  100- : **  8.9  8.9  0.05" 350.0  OCc 373  AAsBCMPRS
 6 r    1210  6.0   98- : **  6.7  6.7  0.05" 350.0  OCc1378  ,AkChW
 6 r   97639  8.5   98- : AB  8.6 10.9  1.96"  73.3  A  2543  AHM
 6 r   97654  9.4   98- : AB  9.5 12.5  1.3"  317.3  A  2544  AsR
 6 r X108170  8.6   98- : AB  8.7 10.0  1.5"  340.8  PRT   3  AAsBCHMPRS
 6 r   97679  9.1   98- : AB  9.8  9.8  0.63" 344.1  HEI 140  AMP
 7 r   98375  9.4   94- : AB 10.2 10.2  0.40" 104.0  TDS6333  P 
 8 r   98771# 7.9   89- : AB  8.26 9.21 0.34" 232.4  HEI 490  HM,I
 8 r    1443# 7.5   89- : AB  7.7 10.3  1.25" 295.2  HO  253  AAsBCHMPRS,ChIW
 8 r    1451  9.0   89- : **  9.7  9.7  0.10"  90.0  OCc   4  AAsP
 9 r    1539  7.3   83- : **  8.2  8.2  0.10"  90.0  OCc 200  BCHS,AkChIW
 9 R  118410  7.1   82- : AB  7.69 8.16 1.81" 333.5  STF1457  As
      118410: B star is X118941 
10 r    1642  7.6   75- *** Kepler star, light curve desired  AsBCR
10 r X 17110  9.8   74- *** Kepler star, light curve desired  AsBCRS
10 r X 17130  9.8   74- *** Kepler star, light curve desired  AR
10 r X 17157  9.5   74- *** Kepler star, light curve desired  AsP
10 r X 17218  9.8   74- *** Kepler star, light curve desired  P
11 r  138567  8.6   66- : AB  8.6 13.4  1.5"  113.0  RST4955  AsBCRS,AkChW
12 r  139052  9.6   56- : ** dMag  0.1  0.07"   7.0  OCc1441  AAsP
                        : AB 10.3 10.4  0.10" 350.0  SHN 169  AASP
13 r  139436  9.4   48- : **  9.7  9.7  0.10"  90.0  OCc  87  ,AkChIW
14 R    2064  6.3   38- : AB  6.87 7.94 1.08" 271.3  STF1837  ,Ak
        2064: B star is X128771
14 R    2088  6.2   36- : **  6.2       0.013" 10.2  OCc1466  P
15 r X 39530  9.9   26- : AB  9.9 11.6  0.9"  248.7  HU  310  P
16 r X 40626 10.3   19- *** Kepler star, light curve desired  ,AkChIW
16 r X 40639  9.8   19- *** Kepler star, light curve desired  ,AkCh
16 r  159790  9.9   19- *** Kepler star, light curve desired  ,ChIW
16 r X 40709 10.0   19- *** Kepler star, light curve desired  ,ChIW
16 r  159794  8.7   19- *** Kepler star, light curve desired  H,AkChIW
16 r X 40716 10.7   19- *** Kepler star, light curve desired  ,Ak
16 r X136107 10.8   18- *** Kepler star, light curve desired  BCHMS
16 r X 40817  9.7   18- *** Kepler star, light curve desired  BCRS
16 r X 40826  9.8   18- *** Kepler star, light curve desired  BRS
16 r  159842  9.0   18- *** Kepler star, light curve desired  H
16 r  159847  9.5   18- *** Kepler star, light curve desired  AsBCRS
16 r  159852  9.1   18- : AB  9.2 10.6  1.2"  320.5  HU  311  H
16 r X136238 10.9   18- *** Kepler star, light curve desired  AAs
16 r X 40917 10.8   18- *** Kepler star, light curve desired  As
16 r X 40951 10.7   18- *** Kepler star, light curve desired  AsP
16 r  159887  8.9   17- : **  9.2 11.2  0.013" 32.9  OCc 576  P
16 r X 40938 10.7   17- *** Kepler star, light curve desired  AsP
16 R    2352  7.0   17- : AB  7.6  7.8  0.04" 186.1  CHR  54  AsP
        2352:           *** Kepler star, light curve desired  As
16 R  159887  8.9   17- : **  9.2 11.2  0.01"  32.9  OCc 576  As
17 r X 42110# 9.6   10- : AB  9.6  9.7  1.2"  292.0  WHC  14  BR
     X 42110" B star is X140969 
17 R  160421# 8.6   10- : AB  8.9 10.0  1.00"  53.6  STN  33  ABCMRS
      160421: B star is X141119
17 r  160513  8.6   10- : **  9.2  9.2  0.10"  90.0  OCc  14  P
18 r  161282  8.9    4- : Aab 9.5 10.1  0.40" 130.0  TDT 781  ABR
18 r  161338  7.0    4- : **  7.4  9.0  0.9"  315.0  OCc1541  AR

23 D    3344# 7.3   11+ : AB  7.3  7.7  1.8"  303.8  STF2944  ,Ak
        3344: B star is 146314
23 D    3366* 6.6   12+ : **  7.1  7.5  0.04" 199.0  OCc 256  P
23 d  146406# 8.6   12+ : **  8.8 10.3  0.03" 274.8  OCc1675  P
24 d  128391  9.1   20+ : **  9.7 10.0  0.02" 228.0  OCc 947  AAsBCMRS
24 D    3508  5.8   21+ : **  6.6  6.6  0.05" 350.0  OCc1648  AAsBCHMRS
24 D  128429  8.1   21+ : AB  8.2 12.0  1.99" 155.3  A  2198  P  
25 d  109388  9.4   30+ : **  9.5  9.5  0.10"  69.0  OCc 471  CS,I
28 d   93452  8.3   64+ : **  9.3  9.3  0.06" 311.0  OCc 937  AAsBCHMRS
28 D   93484  7.0   64+ : **  7.0 10.5  0.035" 13.0  OCc 485  P
29 d X 69914  9.0   74+ : AB  9.5 10.6  0.16"  31.3  COU2682  AAsR
29 D     658  4.3   74+ : AB  4.3  7.9  1.82" 340.4  KUI  17  AAsBCMPRS
         658: B star is X 69899
29 d     663*?6.9   74+ : Aab 7.0  9.0  0.10"  28.3  KOH  11  AAsCHMPS
29 d   93963* 6.9   74+ : **  7.7  7.7  0.03" 337.0  OCc1036  As 
30 d     800  7.9   82+ : Aab 8.22 9.28 0.25"  23.9  HDS 705  AAsMPR
31 d   95183  9.2   88+ : AB  9.3 11.3  0.51"  66.3  A  2443  ,AkW
31 d X 82950  9.6   88+ *** Kepler star, light curve desired  R
31 D   95390  7.4   89+ : **  8.3  8.3  0.05"  13.0  OCc 927  AAsBCHMPRS
31 d X 84930  9.5   89+ *** Kepler star, light curve desired  AsP
31 d   95426  8.7   89+ : **  9.4  9.4  0.10" 236.0  OCc 604  AP
       95426, graze at Adelaide  
31 d X 85235  9.5   89+ *** Kepler star, light curve desired  P

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

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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