Lunar occultation of double stars - Project OLED

OBSERVING PROGRAMME - JANUARY 2025

The programme for this month includes targets from the following campaigns:

DOUBLE STAR WDS PROGRAMME

The table below shows the occultations of the WDS programmme for JANUARY 2025. Please report observations by writing an email to enrique.velasco@uam.es.

For more accurate predictions on these occultations for your position, visit this link and choose "WDS (double stars)" as the "Object catalogue". A summary of these predictions, with detailed information for each observer of the project, can be found here.

Urg.1 Day2 UTC3 Star (WDS)4 RA5 DEC6 Mags.7 Año8 # obs9 Sep.10 PA11 Type12 Flux13 Ilum.14 Def.15 γ16 hSun17 hMoon18 Map19 Map20
A 9 19:33:49 J03334+2322Aa,Ab 3 33 23.73 +23 22 5.6 7.4/ 9.1/ 7.2 1972 0 0.1 --- I 0.83/0.17 80.0 234 30 -27 69 mapa mapa
B 9 19:33:49 J03334+2322AC 3 33 23.73 +23 22 5.6 7.2/ 7.7/ 6.6 2017 43 68.7 33 I 0.61/0.39 80.0 234 30 -27 69 mapa mapa
A 10 01:11:48 J03437+2339Aa,Ab 3 43 41.53 +23 38 56.9 7.9/ 8.9/ 7.5 2009 4 0.0 222 I 0.72/0.28 82.1 189 132 -65 28 mapa mapa
B 10 01:11:48 J03437+2339AB 3 43 41.53 +23 38 56.9 8.0/ 9.6/ 7.7 2020 16 196.7 175 I 0.82/0.18 82.1 189 132 -65 28 mapa mapa
B 10 02:22:49 J03463+2411AB 3 46 16.00 +24 11 23.5 8.1/ 9.4/ 7.8 2016 74 1.1 178 I 0.76/0.24 82.6 210 34 -59 20 mapa mapa
B 10 02:22:49 J03463+2411AB,C 3 46 16.00 +24 11 23.5 8.1/ 7.7/ 7.1 2017 38 38.8 308 I 0.60/0.40 82.6 210 35 -59 20 mapa mapa
A 10 02:42:41 J03475+2406Aa,Ab 3 47 29.06 +24 6 18.8 3.0/ 4.6/ 2.8 1973 0 -1.0 --- I 0.81/0.19 82.7 318 65 -55 16 mapa mapa
B 10 02:42:41 J03475+2406AB 3 47 29.06 +24 6 18.8 2.8/ 6.3/ 2.8 2016 37 117.6 291 I 0.96/0.04 82.7 318 65 -55 16 mapa mapa
B 10 02:40:12 J03475+2406BC 3 47 21.03 +24 6 58.5 6.3/ 8.2/ 6.1 2017 22 86.2 345 I 0.86/0.14 82.7 312 62 -56 17 mapa mapa
B 10 02:40:12 J03475+2406BD 3 47 21.03 +24 6 58.5 6.3/ 8.7/ 6.2 2015 20 75.2 305 I 0.91/0.09 82.7 312 62 -56 17 mapa mapa
B 10 02:40:54 J03475+2406CD 3 47 19.34 +24 8 20.8 8.2/ 8.7/ 7.7 2016 26 54.7 225 I 0.62/0.38 82.7 298 57 -55 17 mapa mapa
A 10 02:39:12 J03475+2406Da,Db 3 47 16.57 +24 7 42.3 9.2/ 9.8/ 8.7 2010 2 0.3 293 I 0.63/0.37 82.6 304 59 -56 17 mapa mapa
B 10 02:39:16 J03474+2355AB 3 47 24.41 +23 54 52.8 7.3/ 9.4/ 7.1 2020 39 5.7 263 I 0.87/0.13 82.6 299 106 -56 17 mapa mapa
B 10 21:41:36 J04385+2656AB 4 38 29.58 +26 56 25.6 7.4/ 7.2/ 6.5 2021 329 4.5 188 I 0.53/0.47 88.9 84 32 -51 76 mapa mapa
A 11 22:58:15 J05450+2812 5 44 59.01 +28 11 40.2 8.0/ 8.0/ 7.2 2007 16 0.2 54 I 0.50/0.50 95.1 92 94 -64 77 mapa mapa
B 15 04:08:13 J08514+2105 8 51 22.60 +21 4 49.3 9.5/ 9.0/ 8.5 2011 15 0.4 336 E 0.61/0.39 -98.2 33 283 -39 52 mapa mapa
B 23 04:54:29 J14575-2125Ba,Bb 14 57 26.54 -21 24 41.4 8.2/ 9.8/ 8.0 2020 28 0.1 195 E 0.82/0.18 -37.5 - 318 -30 22 mapa mapa
B 23 04:55:36 J14575-2125AB 14 57 28.00 -21 24 55.7 5.9/ 8.2/ 5.8 2020 161 26.2 307 E 0.89/0.11 -37.5 - 318 -30 22 mapa mapa
B 24 05:10:51 J15481-2513 15 48 3.31 -25 12 56.0 7.6/ 8.5/ 7.2 2020 9 0.1 60 E 0.69/0.31 -28.3 - 289 -27 15 mapa mapa
B 24 07:11:11 J15509-2534AB 15 50 56.42 -25 34 19.0 8.7/ 8.7/ 7.9 2020 5 0.1 322 E 0.50/0.50 -27.6 - 282 -4 24 mapa mapa

1 Degree of urgency of the observation. A: High. B: Low.
2 Day of occultation.
3 UTC of occultation in Madrid (in black), Barcelona (green), La Laguna (red) and Marseille (blue). Note that some events might be visible in some places and not in others.
4 ID number of star in WDS (Washington Double Star) catalogue.
5 J2000.0 right ascension (hh mm ss.ss).
6 J2000.0 declination (dd mm ss.s).
7 Magnitude of components and total magnitude.
8 Year of last observation.
9 Total number of observations.
10 Last measurement of separation between components, in arcseconds.
11 Last measurement of position angle, in degrees.
12 Type of occultation. I: ingress. E: egress.
13 Fractional change of flux in reference to combined flux. The two values refer to ingress or egress of each component.
14 % fraction of illuminated area of Moon (positive, waxing Moon; negative, waning Moon).
15 Distance from contact to Moon terminator, in arcseconds.
16 Position angle of contact in ° (from N to E).
17 Height of Sun above horizon in reference location at contact time, in °.
18 Height of Moon above horizon in reference location at contact time, in °.
19 Visibility map.
20 Contact map for observers.

GAIA DR3 NONSINGLE STAR PROGRAMME

Nongrazing events

The observing programme for JANUARY 2025 includes a short list of stars from the Gaia DR3 nonsingle star catalogue for which occultation work can confirm duplicity. A summary of these predictions, with detailed information for each observer of the project, can be found here.

General information on the programme can be found in this link.

Day Gaia DR3 id PPM/TYC id mag. Type UTC (hh.mmss)
Tenerife Madrid Asturias Barcelona Marseille Chatillon
10 65275501377570944  92813  8.5 I 01.4751 --- --- --- --- ---
10 65207709613871744  ---  9.6 I --- 02.3905 02.3428 02.3649 --- 02.2927
11 3442723120208243072  ---  10.0 I --- 18.0359 18.1415 18.0616 18.1135 18.2420
11 3443303009514918784  94795  8.4 I 22.4255 23.0438 23.0039 23.1622 23.2304 23.2120
12 3431083453898390912  1871-1855-1  9.9 I --- 04.3319 04.2853 04.3057 04.2802 04.2252
12 3385436060437873536  1901-1121-1  9.5 I 22.0954 22.3010 22.2649 22.4158 22.4856 22.4707
14 681510502699783680  98137  7.8 I --- 03.3333 03.2409 03.3133 03.2803 ---
16 619459662768506496  126775  9.6 E --- 06.2754 06.2125 06.3402 06.3357 06.2607
17 3818011388233235968  157544  8.4 E --- --- --- 22.2415 22.2658 22.2611
20 3676617800674160640  195701  9.6 E --- --- --- --- --- 02.4402

ACKNOWLEDGEMENTS

Information on the stars in the tables above has been collected with the help of the and web tools.

Last revised 01 Ene 25
E. Velasco
Agrupación Astronómica de Madrid
Universidad Autónoma de Madrid
Spain