AAVSO Legacy CVs

Mike Simonsen

There are many stars for which the AAVSO has visual data going back many decades, some 100 years or more. The AAVSO openly encourages the continued observation of these stars by visual observers into the foreseeable future. We call these stars "Legacy Program" stars.

This long time line of observations of these Legacy Stars makes this data particularly useful and scientifically interesting for many reasons. Matthew Templeton, AAVSO Science Director, explains-

"As an example, for any variable with a long-term well observed light curve the scientific values of visual observing come from (a) the long time span, (b) the statistical similarity of errors from visual observers, and (c) the bandpass similarity of human vision across a wide population of observers.

For point (a), long time spans can do at least three valuable things: build up signal-to-noise in the signal domain where there are weak signals less than 0.5 magnitudes; increase frequency precision where periods are stable over the long-term; and uncover long-term changes in behavior.

For point (b), signal processing in the presence of noise is something researchers deal with all the time, so the fact that binned visual observations may have an rms scatter of 0.1-0.3 is not a big deal.

What is much more important is that for a large population of observers, the errors are normally distributed.  So when we have a light curve with dozens or hundreds of observers, that's actually a plus, because it makes it more likely that analysis techniques designed for data with normally distributed errors are going to be appropriate.

For point (c), this is really important, because with visual observers, the bandpass under observation may be somewhat fuzzy, but at least it's nearly *the same bandpass* across a sizable population of observers."  

The AAVSO Legacy CVs were selected from all the cataclysmic variables in the AAVSO International Database based on the number of observations in the DB (minimum 2500), and the years of observations (minimum 20 years).

Name Type RA(J2000) Dec(J2000)
WW Cet UG 00:11:24.72 -11:28:42.9
LS And NA 00:32:10.21 +41:58:11.6
EG And ZAND 00:44:37.19 +40:40:45.6
GX Cas UGSU 00:49:01.49 +56:52:44.6
RX And UGZ 01:04:35.52 +41:17:57.8
HT Cas UGSU+E 01:10:12.95 +60:04:36.2
FN And UGSS 01:11:57.54 +35:17:24.2
FO And UGSU 01:15:32.09 +37:37:34.2
WX Cet UGSU 01:17:04.18 -17:56:22.5
TY Psc UGSU 01:25:39.35 +32:23:09.2
KU Cas UGSS 01:31:02.4 +57:54:12.3
AX Per ZAND+E 01:36:22.69 +54:15:02.3
KT Per UGZ+ZZ 01:37:08.51 +50:57:20.4
AR And UGSS 01:45:03.24 +37:56:32.8
TT Ari NL/VY 02:06:53.09 +15:17:41.7
WX Hyi UGSU 02:09:50.82 -63:18:39.8
UV Per UGSU 02:10:08.03 +57:11:19.7
UW Per UG: 02:12:29.53 +57:05:18.4
TZ Per UGZ 02:13:50.94 +58:22:52.7
AM Cas UGSS 02:26:23.38 +71:18:31.8
PQ And UGWZ+ZZ 02:29:29.53 +40:02:40.1
SV Ari N: 03:25:03.34 +19:49:52.8
GK Per NA+XP 03:31:12 +43:54:15.4
AF Cam UG 03:32:15.48 +58:47:22
FO Per UG 04:08:34.95 +51:14:48.2
VW Hyi UGSU 04:09:11.27 -71:17:41.3
AH Eri UGSS 04:22:38.04 -13:21:30.3
TU Men UGSU 04:41:40.62 -76:36:46.5
AQ Eri UGSU 05:06:13.06 -04:08:07.9
BI Ori UGZ 05:23:51.76 +01:00:30
TV Col NL+E 05:29:25.46 -32:49:04.1
CN Ori UGZ 05:52:07.79 -05:25:00.5
SS Lep ZAND 06:04:59.13 -16:29:03.9
SS Aur UGSS 06:13:22.47 +47:44:25.6
V0344 Ori UGZ 06:15:18.95 +15:31:00
KR Aur NL/VY 06:15:43.91 +28:35:09
CZ Ori UGSS 06:16:43.23 +15:24:11.5
RR Pic NB 06:35:36.05 -62:38:24.2
CW Mon UGSS 06:36:54.54 +00:02:17.6
HL CMa UGSS+XM 06:45:17.21 -16:51:34.7
IR Gem UGSU 06:47:34.51 +28:06:23.5
AW Gem UGSU 07:22:40.74 +28:30:16.9
SV CMi UGZ 07:31:08.45 +05:58:49.1
UY Pup UG 07:46:31.25 -12:57:09.1
BV Pup UGSS 07:49:05.25 -23:34:00
BX Pup UGZ 07:54:15.55 -24:19:36.3
U Gem UGSS+E 07:55:05.21 +22:00:04.7
Z Cha UGSU+EA 08:07:28.21 -76:32:01.3
YZ Cnc UGSU 08:10:56.63 +28:08:33.2
CP Pup NA 08:11:46.06 -35:21:05
SU UMa UGSU 08:12:28.27 +62:36:22.2
RX Pup ZAND+M 08:14:12.3 -41:42:29
IX Vel NL 08:15:18.96 -49:13:20.7
Z Cam UGZ 08:25:13.18 +73:06:39
AT Cnc UGZ 08:28:36.89 +25:20:02.9
CC Cnc UGSU 08:36:19.17 +21:21:05.5
SW UMa UGSU 08:36:42.71 +53:28:37.8
BB Vel UG 08:36:49.26 -47:22:37
EG Cnc UGWZ 08:43:04.02 +27:51:49.7
BZ UMa UGSU 08:53:44.15 +57:48:40.6
AK Cnc UGSU 08:55:21.23 +11:18:15.1
CU Vel UGSU 08:58:33.01 -41:47:51.5
SY Cnc UGZ 09:01:03.31 +17:53:56
T Pyx NR 09:04:41.5 -32:22:47.7
DI UMa UGSU 09:12:16.19 +50:53:54.2
WY Vel ZAND 09:21:59.14 -52:33:51.5
AG Hya UGSU: 09:50:29.75 -23:45:17.2
X Leo UGSS 09:51:01.41 +11:52:30.2
OY Car UGSU+E 10:06:22.24 -70:14:04.9
CH UMa UG 10:07:00.68 +67:32:47
CI UMa UGSU 10:18:13.13 +71:55:44
CY UMa UGSU 10:56:57 +49:41:17.9
V0436 Cen UGSU 11:14:00.18 -37:40:47.4
V0442 Cen UGSS 11:24:51.95 -35:54:37
SY Mus ZAND 11:32:10.01 -65:25:11.6
TT Crt UG 11:34:47.26 -11:45:30.9
RZ Leo UGWZ 11:37:22.23 +01:48:58.2
QZ Vir UGSU 11:38:26.81 +03:22:06.8
DO Dra UG 11:43:38.39 +71:41:20
TW Vir UGSS 11:45:21.16 -04:26:05.7
BC UMa UGWZ 11:52:15.85 +49:14:41.9
MU Cen UGSS 12:12:53.91 -44:28:15.8
AL Com UGWZ 12:32:25.9 +14:20:43.5
TX CVn ZAND+ELL 12:44:42.05 +36:45:50.6
EX Hya UGSU+E 12:52:24.22 -29:14:56
V0485 Cen UGSU 12:57:23.28 -33:12:06.5
NN Cen UGSS 13:14:15.6 -60:52:46.5
HV Vir UGWZ 13:21:03.12 +01:53:29.6
V0803 Cen NL 13:23:44.53 -41:44:29.6
BV Cen UGSS+E/WD 13:31:19.48 -54:58:33.4
V0504 Cen NL/VY 14:12:49.18 -40:21:37.5
UZ Boo UGWZ 14:44:01.21 +22:00:54.7
AE Cir ZAND 14:44:51.29 -69:23:34.5
TT Boo UGSU 14:57:44.8 +40:43:40.8
EK TrA UGSU 15:14:00.43 -65:05:35.5
BR Lup UGSU 15:35:53.09 -40:34:05
LX Ser NL/VY+E 15:38:00.09 +18:52:03.2
SS UMi UGSU 15:51:22.32 +71:45:11.9
T CrB NR 15:59:30.16 +25:55:12.6
AG Dra ZAND 16:01:41.01 +66:48:10.1
HP Nor UGZ 16:20:49.56 -54:53:22.8
U Sco NR+E 16:22:30.78 -17:52:42.8
IK Nor UG 16:25:28.86 -55:20:02.7
AH Her UGZ 16:44:10.01 +25:15:02
FQ Sco UGSS 17:08:04.45 -32:42:02
V2051 Oph UGSU+E 17:08:19.11 -25:48:30.3
AT Ara UGSS 17:30:33.8 -46:05:58.8
MM Sco UGSU 17:30:45.24 -42:11:41.7
FV Ara UG 17:35:10.05 -63:02:50.3
BF Ara UGSU 17:38:21.33 -47:10:41.4
V0723 Sco NA 17:50:05.29 -35:23:57.9
RS Oph NR 17:50:13.16 -06:42:28.5
MU Ser NA 17:55:52.77 -14:01:17.1
DQ Her NB+EA 18:07:30.25 +45:51:32.4
V0426 Oph NL 18:07:51.68 +05:51:47.8
V0618 Sgr ZAND 18:07:56.9 -36:29:36.9
UZ Ser UGZ 18:11:24.85 -14:55:34.1
V1830 Sgr UG 18:13:50.65 -27:42:21
V0533 Her NA 18:14:20.51 +41:51:22.6
YY Her ZAND+ELL 18:14:34.18 +20:59:20.9
AM Her AM/XRM+E 18:16:13.33 +49:52:04.1
FM Sgr NA 18:17:18.25 -23:38:27.8
V0443 Her ZAND 18:22:07.85 +23:27:20
V0441 Sgr NA 18:22:08.09 -25:28:47.3
V1017 Sgr NR 18:32:04.46 -29:23:12.5
CH Her UG 18:34:46.32 +24:48:01.6
LL Lyr UG 18:35:12.71 +38:20:04.7
V4021 Sgr NA 18:38:14.88 -23:22:47.1
AY Lyr UGSU 18:44:26.75 +37:59:51.9
V0344 Lyr UGSU 18:44:39.17 +43:22:27.9
V0603 Aql NA+E+X 18:48:54.64 +00:35:02.9
CY Lyr UGSS 18:52:41.33 +26:45:31.4
FN Sgr ZAND 18:53:54.79 -18:59:40.8
V0446 Her NA 18:57:21.59 +13:14:29
DM Lyr UGSU 18:58:44.45 +30:15:33.3
V1413 Aql ZAND+E 19:03:46.85 +16:26:17
MV Lyr NL/VY 19:07:16.29 +44:01:08.6
FO Aql UGSS 19:16:38.11 +00:07:37.4
BF Cyg ZAND 19:23:53.51 +29:40:29.2
CH Cyg ZAND+SR 19:24:33.06 +50:14:29.1
PW Vul N 19:26:05.04 +27:21:57.7
DH Aql UGSU 19:26:10.81 -10:15:28.9
NQ Vul NB 19:29:14.75 +20:27:59.7
KX Aql UGSU 19:33:53.65 +14:17:47.7
V0795 Cyg UGSS 19:34:34.31 +31:32:11.1
EM Cyg UGZ+E 19:38:40.11 +30:30:28.4
HM Sge NC+M 19:41:57.06 +16:44:39.5
LV Vul NA 19:48:00.7 +27:10:19.5
V0811 Cyg UGSS 19:48:23.31 +36:26:23.8
AB Dra UGZ 19:49:06.37 +77:44:22.9
V0542 Cyg UGSS 19:49:10.51 +58:31:59.3
V1454 Cyg UGSU 19:53:38.47 +35:21:45.3
EY Cyg UGSS 19:54:36.71 +32:21:55.1
V1819 Cyg NB 19:54:37.44 +35:42:16
V0725 Aql UGSU 19:56:45.03 +10:49:32.6
V1016 Cyg NC+M 19:57:05 +39:49:36.4
UU Aql UGSS 19:57:18.6 -09:19:19.8
V0476 Cyg NA 19:58:24.47 +53:37:06.7
AW Sge UGSU 19:58:37.07 +16:41:27.8
V1028 Cyg UGSU 20:00:56.48 +56:56:37.3
RZ Sge UGSU 20:03:18.54 +17:02:52.2
RR Tel NC 20:04:18.54 -55:43:33.2
WZ Sge UGWZ+E+ZZ 20:07:36.46 +17:42:14.6
PU Vul NC 20:21:13.31 +21:34:18.6
V0404 Cyg N 20:24:03.83 +33:52:02.8
QU Vul NA 20:26:46.02 +27:50:43.2
V0503 Cyg UGSU 20:27:17.5 +43:41:24.7
KK Tel UGSU 20:28:38.46 -52:18:45.2
TU Ind UG 20:33:10.55 -45:26:00.8
TT Ind UGZ 20:33:37.09 -56:33:44.7
HR Del NB 20:42:20.34 +19:09:39.3
V0516 Cyg UGSS 20:47:09.78 +41:55:26.7
V0751 Cyg NL/VY 20:52:12.79 +44:19:26
VW Vul UGZ 20:57:45.06 +25:30:25.7
V1500 Cyg NA+E 21:11:36.6 +48:09:02.4
VY Aqr UGSU 21:12:09.19 -08:49:36.9
EF Peg UGSU 21:15:04.12 +14:03:49.2
VZ Aqr UGSS 21:30:24.59 -02:59:17
V0630 Cyg UGSU 21:34:59.22 +40:40:18.8
V0632 Cyg UGSU 21:36:04.21 +40:26:19.2
V1251 Cyg UGWZ 21:40:54.36 +48:39:43.1
Q Cyg NA 21:41:43.92 +42:50:29.1
V1668 Cyg NA 21:42:35.33 +44:01:54.5
SS Cyg UGSS 21:42:42.78 +43:35:09.8
AG Peg ZAND+ELL 21:51:01.97 +12:37:32
RU Peg UGSS+ZZ: 22:14:02.57 +12:42:11.4
CP Lac NA 22:15:41.15 +55:37:01.4
TY PsA UGSU 22:49:39.84 -27:06:53.7
IP Peg UG+E 23:23:08.59 +18:24:59.6
DX And UGSS 23:29:46.7 +43:45:04.6
Z And ZAND 23:33:39.95 +48:49:05.9
V0630 Cas UG 23:48:51.95 +51:27:39.3
Ĉ
Mike Simonsen,
Jun 29, 2010, 5:46 AM