BAA VSS PROGRAMMES AND CHARTS

The Eclipsing Binary Programme  

 

BAAVSS Charts

The section publishes detailed charts with labelled sequence comparisons.

All reasonably well drawn and specifically all charts numbered xxx.xx are now available here. They have been listed by constellation and the following information may assist in deciphering the particular chart reference. Where a chart is named UU Aql 9d 002.02, for example, the star designation is followed by the constellation (except in the case of objects such as Markarian509). Where applicable, the chart size is then shown. In this case it is a 9 degree chart, but other examples might be 20m for a 20 minute chart. Where there is only one chart for a particular variable (as with Binocular Charts), the size is not given. Next comes the standard notation adopted for more modern VSS charts i.e. xxx.xx. If this notation is not given and the chart only has a date, this is not given. It will be necessary to look at the chart itself to see the date. In addition, where a chart has more than one Section variable on it, each chart is now listed separately. (This has also been done to keep the chart name to a manageable length).

Observers are advised to report full estimates using the latest charts because such information can be useful during analyses, or if the sequence is revised at a later date.

Paper copies of all “VSS” charts are available from the Chart Secretary, John Toone,  Hillside View, 17 Ashdale Road, Cressage, Shrewsbury, SY5 6DT.  For EB stars from the EB secretary Des Loughney, 113 Kingsknowe Road North, Edinburgh EH14 2DQ

I hope this will enable observers to keep up to date more easily with the latest version of Section charts which will continue to be announced via the Circulars and electronically via BAAVSS-alert.

This catalogue (v14.1, PDF) lists all of the stars on the Section's Eclipsing Binary Variable Star Programme .

The Eclipsing Binary Handbook, a beginners guide to making EB observations, is available HERE as a free PDF download.  Des Loughney's JBAA paper entitled 'Variable Star photometry with a DSLR camera is available here in PDF format

Roger Pickard, Director

 

Alert stars are marked with an '*'. Please telephone Gary Poyner or the Director immediately for the following...

* Alert if in outburst.
** Alert if fading.

T/B means that the object is monitored as both a Telescopic and Binocular programme star.
R indicates that the object is part of the Recurrent Objects Program.

It should also be pointed out that these charts are intended for visual observers and they are not suitable for those intending to carry out photometry, either with a CCD or a DSLR, as the quoted comparison star magnitudes have been rounded to the whole tenth of a magnitude. Those wishing to carry out photometry and requiring more accurate comparison star data should contact the Director.

The following abbreviations are used in the 'Type' column:

BLLac BL Lac object
 
DQ DQ Her type object (Polar)
 
E Eclipsing binary [EA - Algol type, EB - Beta Lyr type, EW - W UMa type]
 
Gal Galaxy (with variable nucleus)
GCas Gamma Cas type eruptive variable
In  Irregular nebular variable [Ina - hot, Inb - cool]
L Red irregular pulsating variable [Lb - giant, Lc - supergiant]
M Mira type pulsating variable
N Nova [Na - fast, Nb - slow, Nc - very slow, Nr - recurrent]
NL Nova-like stars
QSO Quasi-stellar object (Quasar)
RCB R CrB type eruptive variable
RV RV Tau type pulsating variable [RVa - constant mean mag, RVb - varying mean mag]
 
SDor S Dor type eruptive variable
SR Semiregular pulsating variable [SRa - stable periodicity, SRb - loose periodicity, SRc - supergiant, SRd - yellow]
 
UG U Gem type cataclysmic variable (dwarf nova) [UGSS - SS Cyg type, UGSU - SU UMa type, UGZ - Z Cam type, UGWZ - WZ Sge type]
 
UV UV Cet type (flare star)
X X-ray binary [Xp - X-ray pulsar]
ZAnd Z And type cataclysmic binary (symbiotic variable)

The 'Max' and 'Min' magnitudes are all visual except where the 'Min' is followed by a 'p', in which case they are both photographic.

In the Eclipsing Binary Program list, the 'D' column gives the duration of the eclipse in hours. This is only well-defined for Algol type (EA) stars. 'EB' or 'EW' in this column indicates that the star is a Beta Lyrae or W UMa star.

The 'Chart' column gives the identifier or date of the latest version of the chart. A star name in this column indicates that the star is included on a combined chart under the name of another star. Where there is no date entered, the chart is currently being prepared.

If a star is highlighted, the link will take you directly to the chart.

The Eclipsing Binary Programme            
                   
Star   RA (2000) Dec Max MinII Min I Period D Chart
              d h  
TW And 00 03 +32 51 8.8 8.9 10.9 4.12 13 AAVSO 122901
AD And 23 37 +48 40 10.9 11.6 11.6p 0.99 EB 1984Dec22
DS And 01 59 +38 05 10.4 10.7 10.9p 1.01 EB 1984Dec22
                   
OO Aql 19 48 +09 18 9.2 9.8 9.9 0.51 EW AAVSO 0801
                   
SX Aur 05 12 +42 10 8.4 8.9 9.1 1.21 EB 1984Dec23
WW Aur 06 33 +32 27 5.8 6.4 6.5 2.53 6 AAVSO 122901
AR Aur 05 18 +33 46 6.2 6.7 6.8 4.13 7 283.01
EO Aur 05 18 +36 38 7.6 7.9 8.1 4.07 12 283.01
HL Aur 06 19 +49 43 10.8 11 11.9p 0.62 EB 1984Dec23
IM Aur 05 16 +46 25 7.9 8.1 8.5 1.25 6 1972Feb04
IU Aur 05 28 +34 47 8.2 8.7 8.8 1.81 EB 1984Dec24
LY Aur 05 30 +35 23 6.7 7.3 7.4 4 EB 283.01
Epsilon Aur 05 02 +43 49 2.9   3.8 9892   316.01
                   
ZZ Boo 13 56 +25 55 6.8 7.4 7.4 4.99 7 252.01
                   
RS CVn 13 11 +35 56 7.9 8.2 9.1 4.8 13 253.01
                   
RZ Cas 02 49 +69 38 6.2 6.3 7.7 1.2 5 236.02
TV Cas 00 19 +59 08 7.2 7.3 8.2 1.81 8 1982Aug16
TW Cas 02 46 +65 44 8.3 8.4 9 1.43 5 273.01
TX Cas 02 52 +62 47 9.2 9.6 9.8 2.93 EB 1985Jun08
AB Cas 02 38 +71 18 10.1 10.3 11.9 1.37 6 AAVSO 0801
BM Cas 00 55 +64 05 8.8 9 9.3 197.28 EB 1986Jul05
DO Cas 02 41 +60 33 8.4 8.6 9 0.68 EB 1986Jul05
                   
U Cep 01 02 +81 03 6.8 6.9 9.4 2.49 9 279.01
VW Cep 20 37 +75 36 7.2 7.6 7.7 0.28 EW 1972Mar21
EG Cep 20 16 +76 49 9.3 9.6 10.2 0.54 EB AAVSO 0801
EI Cep 21 29 +76 24 7.5 8 8.1 8.44 12 1972Mar21
GK Cep 21 31 +70 49 6.9 7.4 7.4 0.94 EB 1971Dec02
                   
U CrB 15 18 +31 39 7.7 7.7 8.8 3.45 12 254.01
                   
Y Cyg 20 52 +34 39 7.3 7.8 7.9 3 7 1986Jul06
SW Cyg 20 07 +46 18 9.2 9.3 11.8 4.57 13 AAVSO 0801
BR Cyg 19 41 +46 47 9.4 9.6 10.6 1.33 6 AAVSO 0801
V367 Cyg 20 48 +39 17 6.7 7.2 7.6 18.6 EB 1986Jul06
V448 Cyg 20 06 +35 23 7.9 8.4 8.7 6.52 EB 1986Jul06
V453 Cyg 20 07 +35 44 8.3 8.7 8.7 3.89 14 1986Jul06
V477 Cyg 20 06 +31 58 8.5 8.7 9.3 2.35 4 1972Feb05
                   
Z Dra 11 46 +72 15 10.8 11 14.1p 1.36 5 1993Jan10
TW Dra 15 34 +63 54 7.3 7.4 8.9 2.81 11 274.01
AI Dra 16 56 +52 42 7.1 7.2 8.1 1.2 5 284.01
BH Dra 19 04 +57 27 8 8.1 8.6 1.82 5 285.01
                   
S Equ 20 57 +05 05 8 8.1 10.1 3.44 11 286.01
                   
eta Gem 06 15 +22 30 3.1 3.9   2984   326.01
RW Gem 06 02 +23 09 9.5 9.7 11.8 2.87 10 1994Mar12
                   
68u Her 17 17 +33 06 4.7 4.9 5.4 2.05 14 1971Aug27
Z Her 17 58 +15 08 7.3 8.2 8.2 3.99 11 1972Feb06
RX Her 18 31 +12 37 7.3 7.7 7.9 1.78 6 1972Jun12
                   
SW Lac 22 54 +37 56 8.5 9.3 9.4 0.32 EW 1987Nov
AR Lac 22 09 +45 45 6.1 6.4 6.8 1.98 7 1971Feb13
CM Lac 22 00 +44 33 8.2 8.5 9.2 1.6 4 1987Nov
                   
UV Leo 10 38 +14 16 8.9 9.5 9.6 0.6 3 1987Nov
AP Leo 11 05 +05 09 9.3 9.9 9.9 0.43 EW 1987Nov
                   
Delta Lib 15 01 -08 31 4.9 5 5.9 2.33 13 1987Nov
                   
NSV4031 Lyn 08 23 +45 28 8   8.8     275.01
                   
Beta  Lyr 18 50 +33 22 3.3 3.9 4.4 12.91 EB 328.01
TZ Lyr 18 16 +41 07 10.6 10.8 11.3 0.53 EB 1987Nov
                   
V505 Mon 06 46 +02 30 7.2 7.6 7.7 53.78 EB 1971Aug22
                   
U Oph 17 17 +01 13 5.8 6.5 6.6 1.68 6 1971Dec12
V451 Oph 18 29 +10 53 7.9 8.3 8.5p 2.2 6 1972Jun12
V566 Oph 17 57 +04 59 7.5 7.9 8 0.41 EW 1972Jun11
                   
ER Ori 05 11 -08 33 9.3 10 10 0.42 EW 1987Nov
                   
EE Peg 21 40 +09 11 6.9 7.1 7.5 2.63 6 245.01
                   
Beta  Per 03 08 +40 57 2.1 2.2 3.4 2.87 10 327.01
Z Per 02 40 +42 12 9.7 9.8 12.4p 3.06 10 1994Mar12
DM Per 02 26 +56 06 7.9 8 8.6 2.73 11 1972Apr09
IQ Per 04 00 +48 09 7.7 7.9 8.7 1.74 5 246.01
IZ Per 01 32 +54 01 7.8 8.3 9 3.69 11 1972Feb14
                   
SZ Psc 23 13 +02 41 7.2 7.4 7.7 3.97 10 1972Jun11
                   
U Sge 19 19 +19 37 6.5 6.7 9.3 3.38 14 287.01
                   
Lambda Tau 04 01 +12 29 3.4 3.5 3.9 3.95 14 1993Oct22
RW Tau 04 04 +28 08 8 8.1 11.2 2.77 9 1984Dec18
BV Tau 05 39 +22 55 11.7 11.9 12.4p 0.93 EB 1985Jan31
CD Tau 05 18 +20 08 6.8 7.3 7.3 3.44 7 1972Feb04
HU Tau 04 38 +20 41 5.9 5.9 6.7 2.06 7 247.01
                   
X Tri 02 01 +27 53 8.9 9.1 11.3 0.97 4 1982Jan01
                   
W UMa 09 44 +55 57 7.8 8.4 8.5 0.33 EW 248.01
TX UMa 10 45 +45 34 7.1 7.1 8.8 3.06 9 288.01
                   
Z Vul 19 22 +25 34 7.3 7.6 8.9 2.45 11 255.01