IMPORTANT NOTICE: Bulletin 73 was NOT prepared in the same way as in the past. READ THE INTRODUCTION before you use the Bulletin; contact AAVSO Headquarters for more precise dates for research. Predicted MAXIMA of long period variables for May 2010 *0022+30 YZ And 10.1-15.9 May 24? 0024-38A T Scl # <9.2-13.0> May 11 0054-75 U Tuc %@ <8.6-14.1> May 6 0101-02 Z Cet & <8.9-13.5> May 21 *0110+55A VZ Cas 9.5-14.0 May 23? 0231+33 R Tri <6.2-11.7> May 26 0422+15 W Tau <9.9-11.4> May 5 *0513-16 X Lep @ 8.8-15.6 May 9? 0515-33 T Col %# <7.5-11.9> May 28 0524-04A S Ori <8.4-12.9> May 28 *0612+75 W Cam @ 9.5-15.5 May 6? 0707-72 R Vol %@ <10.8-13.7> May 6 *0710+39 HT Aur %& 9.5-(15.5 May 25? 0717+13 V Gem & <8.5-14.2> May 29 *0720-05 TT Mon %@ 7.3-(14.0 May 7? 0731-73 S Vol %@ <8.6-13.6> May 18 0743+23 T Gem %@ <8.7-14.0> May 31 0824-76 R Cha %# <8.5-13.6> May 21 *0853-00 TU Hya %& 9.6-(15.5 May 8? 0947+35 S LMi <8.6-13.9> May 26 1144-41 X Cen %@ <8.0-13.4> May 24 1233+07 R Vir <6.9-11.5> May 15 1315+46 V CVn <6.8-8.8> May 7 1425+84 R Cam <8.3-13.2> May 15 1434-17 V Lib # <9.7-14.7> May 28 *1443+39 RR Boo <8.8-12.7> May 6? 1533+78A S UMi <8.4-12.0> May 8 *1650+07 V970 Oph 10.0-16.5 May 18? 1652-02 SS Oph <8.7-13.5> May 2 1656-36 RT Sco %@ <8.2>-14.6 May 5 1745-51 U Ara %@ <8.4-13.6> May 31 1756+54 V Dra <9.9-14.2> May 16 1805+31 T Her <8.0-12.8> May 16 *1805+18 XZ Her %& 10.2-(15.5 May 23? 1811+36 W Lyr <7.9-12.2> May 21 1832+25 RZ Her <9.5-14.9> May 6 1856+34 Z Lyr <10.1-14.8> May 1 1901+08 R Aql <6.1-11.5> May 19 *1918+31 AN Lyr 9.3-(15.0 May 2? 1929+28 TY Cyg <9.5-14.6> May 24 2008-22 W Cap <11.7-14.8> May 16 2009+38 RS Cyg <7.2-9.0> May 30 *2014+34 AU Cyg 8.7-15.5 May 25? *2015+59 CN Cyg 8.1-14.6 May 16? *2029+62 BF Cep %# 10.0-(15.0 May 23? 2038+47 V Cyg <9.1-12.8> May 2 2039-05 Y Aqr <9.4-14.8> May 4 *2057-82 T Oct %@ <9.5-14.3> May 19? 2128-14 Y Cap @ <11.6-14.8> May 3 2219-38 T Gru %@ <8.6-11.5> May 19 *2245+17 SX Peg # 8.4-13.4 May 15? 2307+59 V Cas <7.9-12.2> May 24 2339+56 Z Cas <10.0-14.7> May 24 *2352+55 WY Cas 8.2-15.5 May 28? IMPORTANT NOTICE: Bulletin 73 was NOT prepared in the same way as in the past. READ THE INTRODUCTION before you use the Bulletin; contact AAVSO Headquarters for more precise dates for research. Predicted minima of long period variables for May 2010 0003-39 V Scl %@ <9.9-14.6> May 22 *0009+28 UW And & 9.6-(15.0 May 27? 0018-62 S Tuc %& <9.3-14.5> May 16 0031+79 Y Cep <9.6-15.1> May 2 0106-30 U Scl %& <9.8-15.1> May 20 0159+12 S Ari %& <10.9-15.2> May 16 0220-00 R Cet <8.1-13.0> May 21 0229+80 RR Cep <10.2-14.7> May 14 0242+17 T Ari <8.3-10.9> May 24 0257-51 T Hor %@ <8.2-13.2> May 29 0323+35 R Per %# <8.7-14.0> May 27 0346-25 U Eri <9.4-14.8> May 4 0351-24 T Eri <8.0-12.8> May 30 0520+36 W Aur %# <9.2-14.6> May 19 0530+68 S Cam <8.1-11.0> May 20 0546-29 R Col & <8.9-14.3> May 7 *0617+25 ZZ Gem # 9.0-12.2 May 23? 0703+10 R CMi # <8.0-11.0> May 11 *0706-19A SY CMa %& 8.8-14.2 May 16? *0733+36 RU Lyn %@ 9.5-(15.5 May 21? 0742-41 W Pup %& <8.4-12.4> May 25 0816+17 V Cnc <7.9-12.8> May 27 0918-68 RW Car %@ <9.3-15.0> May 23 0948+36 U LMi <10.8-12.7> May 2 *1233+66 RV Dra <9.2-13.7> May 27? *1322+62 RR UMa 8.7-14.8 May 6? 1324-22 R Hya <4.5-9.5> May 13 1425+39 V Boo <7.0-11.3> May 27(I) 1446-46A S Lup %@ <8.6-13.0> May 15 1517+31 S CrB <7.3-12.9> May 14 1550-18 RR Lib %& <8.6-14.2> May 19 1602-21A X Sco %& <11.0-14.3> May 27 1611+38 W CrB <8.5-13.5> May 1 1611-22A R Sco %# <10.4-15.0> May 1 1621-12 V Oph <7.5-10.2> May 23 1647+15 S Her <7.6-12.6> May 11 1650-30 RR Sco # <5.9-11.8> May 12 *1657+22 SY Her 7.8-13.2 May 17? 1803-63 R Pav <8.5-13.0> May 23 *1829+16 DS Her %# 10.4-(15.4 May 18? 1841+34 RY Lyr <9.8-14.7> May 4 1842+43 RW Lyr <11.3-15.6> May 17 *1859+47 WZ Lyr %# 10.0-15.5 May 15? *1905+27 TY Lyr 9.3-15.0 May 3? *1939+54 V369 Cyg 9.7-14.2 May 31? *1940+67 ZZ Dra 9.2-15.5 May 6? 1940+48 RT Cyg <7.3-11.8> May 18 1946-59 S Pav <7.2-9.3> May 15 1949-29 RR Sgr <6.8-13.2> May 31 2002+12 SY Aql <9.5-14.4> May 25 *2007+06 TV Aql @ 9.5-(15.0 May 20? 2010+08 R Del %# <8.3-13.3> May 26 2038+16 S Del <8.8-12.0> May 3 2048+46 RZ Cyg <10.5-13.0> May 5 2109-03 RR Aqr <9.5-13.9> May 29 *2140+12 TU Peg 8.2-13.8 May 14? *2144+43 WY Cyg 8.6-14.8 May 17? *2151+47 LV Cyg %& 10.5-(15.0 May 23? 2156+05 V Peg <8.7-14.4> May 29 2212-30 R PsA <9.2-14.7> May 22 2228-67 R Ind %@ <8.4-14.3> May 28 2234-62 T Tuc %@ <8.1-13.2> May 19 2251-20 S Aqr %& <8.3-14.1> May 17 2315+08 S Peg <8.0-13.0> May 11 *2318+39 BU And %# 9.5-15.5 May 12? 2350+53 RR Cas %# <10.5-14.0> May 15 2352-09 V Cet @ <9.4-14.3> May 29 IMPORTANT NOTICE: Bulletin 73 was NOT prepared in the same way as in the past. READ THE INTRODUCTION before you use the Bulletin; contact AAVSO Headquarters for more precise dates for research. Predicted MAXIMA and minima of long period variables for May 2010 0003-39 V Scl %@ <9.9-14.6> min May 22 *0009+28 UW And & 9.6-(15.0 min May 27? 0018-62 S Tuc %& <9.3-14.5> min May 16 *0022+30 YZ And 10.1-15.9 MAX May 24? 0024-38A T Scl # <9.2-13.0> MAX May 11 0031+79 Y Cep <9.6-15.1> min May 2 0054-75 U Tuc %@ <8.6-14.1> MAX May 6 0101-02 Z Cet & <8.9-13.5> MAX May 21 0106-30 U Scl %& <9.8-15.1> min May 20 *0110+55A VZ Cas 9.5-14.0 MAX May 23? 0159+12 S Ari %& <10.9-15.2> min May 16 0220-00 R Cet <8.1-13.0> min May 21 0229+80 RR Cep <10.2-14.7> min May 14 0231+33 R Tri <6.2-11.7> MAX May 26 0242+17 T Ari <8.3-10.9> min May 24 0257-51 T Hor %@ <8.2-13.2> min May 29 0323+35 R Per %# <8.7-14.0> min May 27 0346-25 U Eri <9.4-14.8> min May 4 0351-24 T Eri <8.0-12.8> min May 30 0422+15 W Tau <9.9-11.4> MAX May 5 *0513-16 X Lep @ 8.8-15.6 MAX May 9? 0515-33 T Col %# <7.5-11.9> MAX May 28 0520+36 W Aur %# <9.2-14.6> min May 19 0524-04A S Ori <8.4-12.9> MAX May 28 0530+68 S Cam <8.1-11.0> min May 20 0546-29 R Col & <8.9-14.3> min May 7 *0612+75 W Cam @ 9.5-15.5 MAX May 6? *0617+25 ZZ Gem # 9.0-12.2 min May 23? 0703+10 R CMi # <8.0-11.0> min May 11 *0706-19A SY CMa %& 8.8-14.2 min May 16? 0707-72 R Vol %@ <10.8-13.7> MAX May 6 *0710+39 HT Aur %& 9.5-(15.5 MAX May 25? 0717+13 V Gem & <8.5-14.2> MAX May 29 *0720-05 TT Mon %@ 7.3-(14.0 MAX May 7? 0731-73 S Vol %@ <8.6-13.6> MAX May 18 *0733+36 RU Lyn %@ 9.5-(15.5 min May 21? 0742-41 W Pup %& <8.4-12.4> min May 25 0743+23 T Gem %@ <8.7-14.0> MAX May 31 0816+17 V Cnc <7.9-12.8> min May 27 0824-76 R Cha %# <8.5-13.6> MAX May 21 *0853-00 TU Hya %& 9.6-(15.5 MAX May 8? 0918-68 RW Car %@ <9.3-15.0> min May 23 0947+35 S LMi <8.6-13.9> MAX May 26 0948+36 U LMi <10.8-12.7> min May 2 1144-41 X Cen %@ <8.0-13.4> MAX May 24 *1233+66 RV Dra <9.2-13.7> min May 27? 1233+07 R Vir <6.9-11.5> MAX May 15 1315+46 V CVn <6.8-8.8> MAX May 7 *1322+62 RR UMa 8.7-14.8 min May 6? 1324-22 R Hya <4.5-9.5> min May 13 1425+84 R Cam <8.3-13.2> MAX May 15 1425+39 V Boo <7.0-11.3> min May 27(I) 1434-17 V Lib # <9.7-14.7> MAX May 28 *1443+39 RR Boo <8.8-12.7> MAX May 6? 1446-46A S Lup %@ <8.6-13.0> min May 15 1517+31 S CrB <7.3-12.9> min May 14 1533+78A S UMi <8.4-12.0> MAX May 8 1550-18 RR Lib %& <8.6-14.2> min May 19 1602-21A X Sco %& <11.0-14.3> min May 27 1611+38 W CrB <8.5-13.5> min May 1 1611-22A R Sco %# <10.4-15.0> min May 1 1621-12 V Oph <7.5-10.2> min May 23 1647+15 S Her <7.6-12.6> min May 11 *1650+07 V970 Oph 10.0-16.5 MAX May 18? 1650-30 RR Sco # <5.9-11.8> min May 12 1652-02 SS Oph <8.7-13.5> MAX May 2 1656-36 RT Sco %@ <8.2>-14.6 MAX May 5 *1657+22 SY Her 7.8-13.2 min May 17? 1745-51 U Ara %@ <8.4-13.6> MAX May 31 1756+54 V Dra <9.9-14.2> MAX May 16 1803-63 R Pav <8.5-13.0> min May 23 1805+31 T Her <8.0-12.8> MAX May 16 *1805+18 XZ Her %& 10.2-(15.5 MAX May 23? 1811+36 W Lyr <7.9-12.2> MAX May 21 *1829+16 DS Her %# 10.4-(15.4 min May 18? 1832+25 RZ Her <9.5-14.9> MAX May 6 1841+34 RY Lyr <9.8-14.7> min May 4 1842+43 RW Lyr <11.3-15.6> min May 17 1856+34 Z Lyr <10.1-14.8> MAX May 1 *1859+47 WZ Lyr %# 10.0-15.5 min May 15? 1901+08 R Aql <6.1-11.5> MAX May 19 *1905+27 TY Lyr 9.3-15.0 min May 3? *1918+31 AN Lyr 9.3-(15.0 MAX May 2? 1929+28 TY Cyg <9.5-14.6> MAX May 24 *1939+54 V369 Cyg 9.7-14.2 min May 31? *1940+67 ZZ Dra 9.2-15.5 min May 6? 1940+48 RT Cyg <7.3-11.8> min May 18 1946-59 S Pav <7.2-9.3> min May 15 1949-29 RR Sgr <6.8-13.2> min May 31 2002+12 SY Aql <9.5-14.4> min May 25 *2007+06 TV Aql @ 9.5-(15.0 min May 20? 2008-22 W Cap <11.7-14.8> MAX May 16 2009+38 RS Cyg <7.2-9.0> MAX May 30 2010+08 R Del %# <8.3-13.3> min May 26 *2014+34 AU Cyg 8.7-15.5 MAX May 25? *2015+59 CN Cyg 8.1-14.6 MAX May 16? *2029+62 BF Cep %# 10.0-(15.0 MAX May 23? 2038+47 V Cyg <9.1-12.8> MAX May 2 2038+16 S Del <8.8-12.0> min May 3 2039-05 Y Aqr <9.4-14.8> MAX May 4 2048+46 RZ Cyg <10.5-13.0> min May 5 *2057-82 T Oct %@ <9.5-14.3> MAX May 19? 2109-03 RR Aqr <9.5-13.9> min May 29 2128-14 Y Cap @ <11.6-14.8> MAX May 3 *2140+12 TU Peg 8.2-13.8 min May 14? *2144+43 WY Cyg 8.6-14.8 min May 17? *2151+47 LV Cyg %& 10.5-(15.0 min May 23? 2156+05 V Peg <8.7-14.4> min May 29 2212-30 R PsA <9.2-14.7> min May 22 2219-38 T Gru %@ <8.6-11.5> MAX May 19 2228-67 R Ind %@ <8.4-14.3> min May 28 2234-62 T Tuc %@ <8.1-13.2> min May 19 *2245+17 SX Peg # 8.4-13.4 MAX May 15? 2251-20 S Aqr %& <8.3-14.1> min May 17 2307+59 V Cas <7.9-12.2> MAX May 24 2315+08 S Peg <8.0-13.0> min May 11 *2318+39 BU And %# 9.5-15.5 min May 12? 2339+56 Z Cas <10.0-14.7> MAX May 24 2350+53 RR Cas %# <10.5-14.0> min May 15 *2352+55 WY Cas 8.2-15.5 MAX May 28? 2352-09 V Cet @ <9.4-14.3> min May 29