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 April 2010 0017+26 T And <8.5-13.8> Apr 8 0044-35 X Scl %@ <10.6-(14.2> Apr 14 0047+46A RV Cas <9.4-15.2> Apr 15 *0054+27 W Psc # 9.8-15.6 Apr 25? *0202+27 Z Tri %& 9.4-15.2 Apr 24? *0204+48 RV And 9.0-11.5 Apr 7? 0210+24 R Ari <8.2-13.2> Apr 22 *0347+11 IK Tau %@ 12.3-15.8 Apr 6? *0419+16 VX Tau %@ 9.7-(15.0 Apr 29? 0422+09 R Tau %& <8.6-14.2> Apr 3 0432+74 X Cam <8.1-12.6> Apr 8 0546+15A Z Tau <9.8-13.9> Apr 14 *0554+39 AZ Aur 9.5-14.1 Apr 18? 0617-02 V Mon %# <7.0-13.1> Apr 20 *0618+50 GO Aur @ 9.7-14.8 Apr 4? 0651+11 Y Mon %@ <9.1-13.9> Apr 19 *0702+05 RS Mon %& 9.4-(15.3 Apr 29? *0707+14 VX Gem 8.4-13.1 Apr 19? *0739+14 BE Gem %@ 10.1-(15.5 Apr 17? 0756-12 U Pup %@ <9.8-14.1> Apr 11 *0807+14 SU Cnc %# 10.5-(15.4 Apr 8? 0830+19 U Cnc %# <9.9-14.6> Apr 21 *0830+13 UY Cnc %& 10.5-15.3 Apr 11? 0848+03 S Hya & <7.8-12.7> Apr 2 0900-24 S Pyx %& <9.0-13.9> Apr 23 1006-61 S Car # <5.7-8.5> Apr 11 *1107-06 U Crt %& 9.0-(14.0 Apr 28? 1331-55 RV Cen <7.7-10.3> Apr 27 1336-33 T Cen <5.5-9.0> Apr 18 1409-59 R Cen <5.8-11.1> Apr 14(II) 1419+54 S Boo <8.4-13.3> Apr 16 1422+05 RS Vir <8.1-13.9> Apr 9 1536-54 T Nor %@ <7.4-13.2> Apr 29 1552+29 Z CrB <10.0-14.6> Apr 26 1605-19 W Sco %@ <11.5-14.6> Apr 20 1611-22B S Sco %# <10.5-14.6> Apr 30 *1613+26 NP Her %# 9.3-12.8 Apr 15? 1643-19 RR Oph <8.9-14.6> Apr 27 *1647+05 RX Oph %# 9.0-(15.5 Apr 8? 1810+31 TV Her <9.7-14.5> Apr 27 *1815+12 V450 Oph %# 10.6-(15.0 Apr 13? 1850+32 RX Lyr <11.9-(15.5> Apr 16 *1910+46 SS Lyr 9.5-15.0 Apr 2? 1913-31 SW Sgr %@ <10.0-(13.4> Apr 13 1935+09 RV Aql <9.0-14.2> Apr 11 *1939+54 V369 Cyg 9.7-14.2 Apr 5? 1943+48 TU Cyg <9.4-14.2> Apr 16 1946+04 X Aql <8.9-14.9> Apr 3 *1950+55 CU Cyg & 10.3-(15.0 Apr 13? *1951+36A IZ Cyg %@ 10.3-(15.5 Apr 2? *1955+51 CM Cyg 9.5-(15.0 Apr 14? 2007+15A S Aql <8.9-12.4> Apr 18 2007-47 R Tel %@ <8.6-14.8> Apr 18 2011-39 RT Sgr %@ <7.0-13.3> Apr 29 *2012+09 RU Del 10.4-15.2 Apr 24? *2051-40 RY Mic %@ 9.7-13.8 Apr 23? 2056-27 RR Cap %@ <9.3-14.5> Apr 18 2059+23A R Vul <8.1-12.6> Apr 15 2102-21 X Cap %@ <11.1-14.8> Apr 30 2116+14 X Peg <9.4-13.8> Apr 9 2120-30 S Mic %& <9.0-13.8> Apr 15 *2137+53 RU Cyg <8.0-9.4> Apr 2? 2142-47 R Gru %@ <8.3-14.6> Apr 15 2221+29 RV Peg %& <9.9-14.6> Apr 13 2259+14 RW Peg <9.7-14.0> Apr 24 2327-46 V Phe %@ <9.2-14.0> Apr 24 2351-50 R Phe %@ <8.0-14.1> Apr 10 2358+55A Y Cas <9.8-14.5> Apr 10 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 April 2010 0018+38 R And <6.9-14.3> Apr 30 0040+47 U Cas <8.4-14.8> Apr 19 0044+35 V And <9.5-14.4> Apr 5 0109+40 U And <9.9-14.3> Apr 23 *0109-57 RS Phe %@ 9.7-(15.0 Apr 28? 0117+12 U Psc %& <11.0-14.4> Apr 15 *0122-33 R Scl 6.0-9.1 Apr 14? *0242+37 AI Per %& 11.0-15.5 Apr 3? *0526+07 BK Ori & 9.0-14.0 Apr 3? *0625+64 RT Cam # 9.3-(15.0 Apr 18? *0641+08 ST Mon %@ 9.9-15.7 Apr 3? 0652-08 X Mon <7.4-9.1> Apr 25 *0753+20 BP Gem & 9.8-15.9 Apr 7? 0833+50 X UMa <9.7-14.4> Apr 21 *0937+20 RS Leo 9.7-(15.5 Apr 14? *1010-58B AF Car %@ 9.7-(14.5 Apr 24? 1159+19 R Com <8.5-14.2> Apr 17 1332+73 T UMi <9.2-14.0> Apr 9 1401+13 Z Boo <9.3-14.8> Apr 12 1405-28 RU Hya %& <8.4-14.0> Apr 2 1415+67 U UMi <8.2-12.0> Apr 5 *1513+36 RT Boo 8.9-14.0 Apr 8? 1517+14 S Ser <8.7-13.5> Apr 17 1527-14 RU Lib %# <8.1-14.0> Apr 27 *1540-20 Z Lib %@ 11.7-(15.5 Apr 11? 1546+15 R Ser <6.9-13.4> Apr 13 1558-23 RZ Sco %# <8.8-12.2> Apr 27 1600-21 Z Sco %& <9.2-13.4> Apr 27 1628+07A SS Her <9.2-12.4> Apr 20 *1702+17 VY Her # 9.3-15.5 Apr 20? 1708-33 RW Sco %@ <9.6>-15.0 Apr 18 *1726+18 UZ Her 8.3-15.5 Apr 4? 1751+11 RT Oph <9.6-15.1> Apr 3 *1754+23A FU Her %@ 11.1-15.8 Apr 26? *1814+06 AY Oph & 10.4-(15.5 Apr 18? *1818+28 AZ Her & 10.4-16.0 Apr 18? *1853+16 EU Aql %& 11.4-15.1 Apr 21? 1908-18 RX Sgr <9.7-13.8> Apr 9 1909+41 RU Lyr <10.6-15.1> Apr 8 1910-19 R Sgr <7.3-12.5> Apr 24 *1927+34 DD Cyg 9.6-14.1 Apr 4? 1958+49 Z Cyg <8.7-13.3> Apr 25 *2002+50 BU Cyg 9.6-(16.0 Apr 23? 2003+57 S Cyg <10.3-16.0> Apr 3 *2013+76 SZ Cep 9.1-15.5 Apr 11? 2028+17 Z Del <8.8-14.5> Apr 30 *2035+13 SS Del 11.3-(16.0 Apr 2? 2041-04 W Aqr <8.9-14.2> Apr 21 *2117+21 SW Peg 8.7-15.5 Apr 4? *2158+13 DG Peg 10.2-15.2 Apr 29? 2158-28 S PsA <9.0>-(13.4 Apr 18 2213-21 X Aqr <8.3-14.4> Apr 25 2359+39 SV And <8.7-13.7> Apr 27 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 April 2010 0017+26 T And <8.5-13.8> MAX Apr 8 0018+38 R And <6.9-14.3> min Apr 30 0040+47 U Cas <8.4-14.8> min Apr 19 0044+35 V And <9.5-14.4> min Apr 5 0044-35 X Scl %@ <10.6-(14.2> MAX Apr 14 0047+46A RV Cas <9.4-15.2> MAX Apr 15 *0054+27 W Psc 9.8-15.6 MAX Apr 25? 0109+40 U And <9.9-14.3> min Apr 23 *0109-57 RS Phe %@ 9.7-(15.0 min Apr 28? 0117+12 U Psc %& <11.0-14.4> min Apr 15 *0122-33 R Scl 6.0-9.1 min Apr 14? *0202+27 Z Tri %& 9.4-15.2 MAX Apr 24? *0204+48 RV And 9.0-11.5 MAX Apr 7? 0210+24 R Ari <8.2-13.2> MAX Apr 22 *0242+37 AI Per %& 11.0-15.5 min Apr 3? *0347+11 IK Tau %@ 12.3-15.8 MAX Apr 6? *0419+16 VX Tau %@ 9.7-(15.0 MAX Apr 29? 0422+09 R Tau %& <8.6-14.2> MAX Apr 3 0432+74 X Cam <8.1-12.6> MAX Apr 8 *0526+07 BK Ori & 9.0-14.0 min Apr 3? 0546+15A Z Tau <9.8-13.9> MAX Apr 14 *0554+39 AZ Aur 9.5-14.1 MAX Apr 18? 0617-02 V Mon %# <7.0-13.1> MAX Apr 20 *0618+50 GO Aur @ 9.7-14.8 MAX Apr 4? *0625+64 RT Cam # 9.3-(15.0 min Apr 18? *0641+08 ST Mon %@ 9.9-15.7 min Apr 3? 0651+11 Y Mon %@ <9.1-13.9> MAX Apr 19 0652-08 X Mon <7.4-9.1> min Apr 25 *0702+05 RS Mon %& 9.4-(15.3 MAX Apr 29? *0707+14 VX Gem 8.4-13.1 MAX Apr 19? *0739+14 BE Gem %@ 10.1-(15.5 MAX Apr 17? *0753+20 BP Gem & 9.8-15.9 min Apr 7? 0756-12 U Pup %@ <9.8-14.1> MAX Apr 11 *0807+14 SU Cnc %# 10.5-(15.4 MAX Apr 8? 0830+19 U Cnc %# <9.9-14.6> MAX Apr 21 *0830+13 UY Cnc %& 10.5-15.3 MAX Apr 11? 0833+50 X UMa <9.7-14.4> min Apr 21 0848+03 S Hya & <7.8-12.7> MAX Apr 2 0900-24 S Pyx %& <9.0-13.9> MAX Apr 23 *0937+20 RS Leo 9.7-(15.5 min Apr 14? 1006-61 S Car # <5.7-8.5> MAX Apr 11 *1010-58B AF Car %@ 9.7-(14.5 min Apr 24? *1107-06 U Crt %& 9.0-(14.0 MAX Apr 28? 1159+19 R Com <8.5-14.2> min Apr 17 1331-55 RV Cen <7.7-10.3> MAX Apr 27 1332+73 T UMi <9.2-14.0> min Apr 9 1336-33 T Cen <5.5-9.0> MAX Apr 18 1401+13 Z Boo <9.3-14.8> min Apr 12 1405-28 RU Hya %& <8.4-14.0> min Apr 2 1409-59 R Cen <5.8-11.1> MAX Apr 14(I) 1415+67 U UMi <8.2-12.0> min Apr 5 1419+54 S Boo <8.4-13.3> MAX Apr 16 1422+05 RS Vir <8.1-13.9> MAX Apr 9 *1513+36 RT Boo 8.9-14.0 min Apr 8? 1517+14 S Ser <8.7-13.5> min Apr 17 1527-14 RU Lib %# <8.1-14.0> min Apr 27 1536-54 T Nor %@ <7.4-13.2> MAX Apr 29 *1540-20 Z Lib %@ 11.7-(15.5 min Apr 11? 1546+15 R Ser <6.9-13.4> min Apr 13 1552+29 Z CrB <10.0-14.6> MAX Apr 26 1558-23 RZ Sco %# <8.8-12.2> min Apr 27 1600-21 Z Sco %& <9.2-13.4> min Apr 27 1605-19 W Sco %@ <11.5-14.6> MAX Apr 20 1611-22B S Sco %# <10.5-14.6> MAX Apr 30 *1613+26 NP Her %# 9.3-12.8 MAX Apr 15? 1628+07A SS Her <9.2-12.4> min Apr 20 1643-19 RR Oph <8.9-14.6> MAX Apr 27 *1647+05 RX Oph %# 9.0-(15.5 MAX Apr 8? *1702+17 VY Her # 9.3-15.5 min Apr 20? 1708-33 RW Sco %@ <9.6>-15.0 min Apr 18 *1726+18 UZ Her 8.3-15.5 min Apr 4? 1751+11 RT Oph <9.6-15.1> min Apr 3 *1754+23A FU Her %@ 11.1-15.8 min Apr 26? 1810+31 TV Her <9.7-14.5> MAX Apr 27 *1814+06 AY Oph & 10.4-(15.5 min Apr 18? *1815+12 V450 Oph %# 10.6-(15.0 MAX Apr 13? *1818+28 AZ Her & 10.4-16.0 min Apr 18? 1850+32 RX Lyr <11.9-(15.5> MAX Apr 16 *1853+16 EU Aql %& 11.4-15.1 min Apr 21? 1908-18 RX Sgr <9.7-13.8> min Apr 9 1909+41 RU Lyr <10.6-15.1> min Apr 8 *1910+46 SS Lyr 9.5-15.0 MAX Apr 2? 1910-19 R Sgr <7.3-12.5> min Apr 24 1913-31 SW Sgr %@ <10.0-(13.4> MAX Apr 13 *1927+34 DD Cyg 9.6-14.1 min Apr 4? 1935+09 RV Aql <9.0-14.2> MAX Apr 11 *1939+54 V369 Cyg 9.7-14.2 MAX Apr 5? 1943+48 TU Cyg <9.4-14.2> MAX Apr 16 1946+04 X Aql <8.9-14.9> MAX Apr 3 *1950+55 CU Cyg & 10.3-(15.0 MAX Apr 13? *1951+36A IZ Cyg %@ 10.3-(15.5 MAX Apr 2? *1955+51 CM Cyg 9.5-(15.0 MAX Apr 14? 1958+49 Z Cyg <8.7-13.3> min Apr 25 *2002+50 BU Cyg 9.6-(16.0 min Apr 23? 2003+57 S Cyg <10.3-16.0> min Apr 3 2007+15A S Aql <8.9-12.4> MAX Apr 18 2007-47 R Tel %@ <8.6-14.8> MAX Apr 18 2011-39 RT Sgr %@ <7.0-13.3> MAX Apr 29 *2012+09 RU Del 10.4-15.2 MAX Apr 24? *2013+76 SZ Cep 9.1-15.5 min Apr 11? 2028+17 Z Del <8.8-14.5> min Apr 30 *2035+13 SS Del 11.3-(16.0 min Apr 2? 2041-04 W Aqr <8.9-14.2> min Apr 21 *2051-40 RY Mic %@ 9.7-13.8 MAX Apr 23? 2056-27 RR Cap %@ <9.3-14.5> MAX Apr 18 2059+23A R Vul <8.1-12.6> MAX Apr 15 2102-21 X Cap %@ <11.1-14.8> MAX Apr 30 2116+14 X Peg <9.4-13.8> MAX Apr 9 *2117+21 SW Peg 8.7-15.5 min Apr 4? 2120-30 S Mic %& <9.0-13.8> MAX Apr 15 *2137+53 RU Cyg <8.0-9.4> MAX Apr 2? 2142-47 R Gru %@ <8.3-14.6> MAX Apr 15 *2158+13 DG Peg 10.2-15.2 min Apr 29? 2158-28 S PsA <9.0>-(13.4 min Apr 18 2213-21 X Aqr <8.3-14.4> min Apr 25 2221+29 RV Peg %& <9.9-14.6> MAX Apr 13 2259+14 RW Peg <9.7-14.0> MAX Apr 24 2327-46 V Phe %@ <9.2-14.0> MAX Apr 24 2351-50 R Phe %@ <8.0-14.1> MAX Apr 10 2358+55A Y Cas <9.8-14.5> MAX Apr 10 2359+39 SV And <8.7-13.7> min Apr 27