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 December 2010 0010-32 S Scl %# <6.7-12.9> Dec 24 *0022+30 YZ And 10.1-15.9 Dec 17? 0044-35 X Scl %@ <10.6-(14.2> Dec 31 0046+33 RR And <9.1-15.1> Dec 1 *0127+46 SX And 8.6-14.6 Dec 12? 0224-26 R For %& <8.9-12.2> Dec 14 *0302+26 Z Ari # 10.2-(15.0 Dec 26? 0305+14 U Ari # <8.1-14.6> Dec 3 0500-22 T Lep <8.3-12.9> Dec 20 0543-31 S Col %# <9.3-13.8> Dec 27 *0607+46A ST Aur %@ 10.3-15.8 Dec 22? 0631+59 U Lyn <9.5-14.4> Dec 11 0651+11 Y Mon %@ <9.1-13.9> Dec 3 0652-08 X Mon <7.4-9.1> Dec 18 0701+22A R Gem <7.1-13.5> Dec 31 *0808+37 RT Lyn 9.1-15.2 Dec 13? 0848+03 S Hya & <7.8-12.7> Dec 14 0925-51 Y Vel %@ <9.5-13.8> Dec 25 0949-53 Z Vel %@ <9.0-14.3> Dec 13 0954+21 V Leo <9.1-13.7> Dec 13 0955-63 RV Car %@ <11.3-16.2> Dec 4 *1010-58B AF Car %@ 9.7-(14.5 Dec 16? 1105+06 S Leo <10.1-13.9> Dec 15 1225+32 T CVn <9.6-11.9> Dec 20 1345-36 RX Cen %@ <9.4>-(15.0 Dec 13 1425+39 V Boo <7.0-11.3> Dec 8(II) 1536-54 T Nor %@ <7.4-13.2> Dec 25 1546+39 V CrB <7.5-11.0> Dec 30 1558-23 RZ Sco %# <8.8-12.2> Dec 13 1621+19 U Her <7.5-12.5> Dec 19 1648-44 RS Sco %& <7.0-12.2> Dec 19 1702-15 R Oph <7.6-13.3> Dec 26 1714+01 Z Oph <8.1-12.7> Dec 16 *1740+21 CF Her # 9.1-15.9 Dec 11? 1811+36 W Lyr <7.9-12.2> Dec 5 *1813+06 BC Oph 8.8-15.6 Dec 16? *1820+39 TW Lyr %& 9.7-15.5 Dec 8? 1842+43 RW Lyr <11.3-15.6> Dec 7 1850+32 RX Lyr <11.9-(15.5> Dec 20 *1915+17 W Sge %# 9.0-(15.5 Dec 31? *1918+31 AN Lyr 9.3-(15.0 Dec 12? *1955+51 CM Cyg 9.5-(15.0 Dec 24? *2002+50 BU Cyg 9.6-(16.0 Dec 22? 2008-22 W Cap <11.7-14.8> Dec 12 2009-06 Z Aql <9.0-13.9> Dec 11 2034-29 R Mic <9.2-13.4> Dec 25 *2057-82 T Oct %@ <9.5-14.3> Dec 23? 2101-24 V Cap %@ <9.2>-14.4 Dec 16 2102-21 X Cap %@ <11.1-14.8> Dec 4 *2158+13 DG Peg 10.2-15.2 Dec 4? *2219+55B SU Lac %@ 10.3-(15.0 Dec 25? *2331+09 FF Peg 9.8-15.8 Dec 8? 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 December 2010 0004+51 SS Cas <9.8-13.1> Dec 28 0044+35 V And <9.5-14.4> Dec 18 *0106+21A X Psc %& 7.9-15.0 Dec 19? *0109-57 RS Phe %@ 9.7-(15.0 Dec 23? *0120+20 RX Psc %& 9.5-(14.7 Dec 27? 0212+81 Z Cep # <10.8-15.4> Dec 14 0314-01 X Cet <8.8-12.3> Dec 13 0320+43 Y Per <8.4-10.3> Dec 4 0323+35 R Per %# <8.7-14.0> Dec 23 0500+03A V Ori & <9.4-14.1> Dec 16 0524-04A S Ori <8.4-12.9> Dec 23 0533+37 RU Aur %& <9.6-14.5> Dec 20 *0536-04 Y Ori %# 9.3-(15.5 Dec 24? *0549+32 AY Aur %# 10.0-(15.0 Dec 2? *0618+24 CD Gem @ 10.9-(15.7 Dec 23? *0625+74 SU Cam %# 9.2-15.0 Dec 4? *0632-01 SY Mon @ 7.3-15.0 Dec 24? 0640+30 X Gem <8.2-13.2> Dec 2 *0640+13A UY Gem %& 11.0-(15.0 Dec 16? *0706-19A SY CMa %& 8.8-14.2 Dec 22? 0707-72 R Vol %@ <10.8-13.7> Dec 26 *0710+26 WZ Gem # 9.5-16.0 Dec 3? 0728+11 T CMi %@ <10.5-14.0> Dec 24 *0753+20 BP Gem & 9.8-15.9 Dec 10? *0819+35 X Lyn %& 9.3-15.5 Dec 11? 0824-76 R Cha %# <8.5-13.6> Dec 15 0833+50 X UMa <9.7-14.4> Dec 26 1032-70 RZ Car %@ <10.0-15.4> Dec 12 1220+01 SS Vir <6.8-8.9> Dec 23 *1233+66 RV Dra <9.2-13.7> Dec 22? 1233+07 R Vir <6.9-11.5> Dec 17 1234+59 RS UMa <9.0-14.3> Dec 10 1302-12 RV Vir %& <10.8-14.9> Dec 7 *1322+62 RR UMa 8.7-14.8 Dec 22? 1336-33 T Cen <5.5-9.0> Dec 1 1506-05 Y Lib %& <8.6-14.1> Dec 4 1602-21A X Sco %& <11.0-14.3> Dec 12 1611+38 W CrB <8.5-13.5> Dec 25 1611-22A R Sco %# <10.4-15.0> Dec 11 *1613+26 NP Her %# 9.3-12.8 Dec 11? 1631+37 W Her <8.3-13.5> Dec 21 *1640+12 UV Her 8.8-14.1 Dec 17? *1719+04A V759 Oph %& 9.8-13.6 Dec 18? *1726+18 UZ Her 8.3-15.5 Dec 24? 1805+65 W Dra <9.6-14.4> Dec 31 *1815+12 V450 Oph %# 10.6-(15.0 Dec 10? 1911-24 TY Sgr %& <9.8-15.0> Dec 20 *1939+54 V369 Cyg 9.7-14.2 Dec 26? *2002+09 HI Aql 10.4-(16.0 Dec 24? *2007+20A ST Sge 9.9-14.4 Dec 26? 2007+15A S Aql <8.9-12.4> Dec 8 2007-47 R Tel %@ <8.6-14.8> Dec 27 2008+12 RU Aql <9.4-14.0> Dec 6 2009+38 RS Cyg <7.2-9.0> Dec 9 *2025+12 RX Del 10.2-(15.5 Dec 28? 2038+47 V Cyg <9.1-12.8> Dec 17 *2039+37 DR Cyg %# 8.3-(15.5 Dec 23? 2039-05 Y Aqr <9.4-14.8> Dec 7 2050+17 X Del <9.0-14.1> Dec 11 2105-16 Z Cap # <9.5-14.0> Dec 13 2219-38 T Gru %@ <8.6-11.5> Dec 23 2228-67 R Ind %@ <8.4-14.3> Dec 30 2333+35 ST And <8.2-11.8> Dec 28 2357-15 W Cet %& <7.6-14.4> Dec 15 2358+55A Y Cas <9.8-14.5> Dec 13 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 December 2010 0004+51 SS Cas <9.8-13.1> min Dec 28 0010-32 S Scl %# <6.7-12.9> MAX Dec 24 *0022+30 YZ And 10.1-15.9 MAX Dec 17? 0044+35 V And <9.5-14.4> min Dec 18 0044-35 X Scl %@ <10.6-(14.2> MAX Dec 31 0046+33 RR And <9.1-15.1> MAX Dec 1 *0106+21A X Psc %& 7.9-15.0 min Dec 19? *0109-57 RS Phe %@ 9.7-(15.0 min Dec 23? *0120+20 RX Psc %& 9.5-(14.7 min Dec 27? *0127+46 SX And 8.6-14.6 MAX Dec 12? 0212+81 Z Cep # <10.8-15.4> min Dec 14 0224-26 R For %& <8.9-12.2> MAX Dec 14 *0302+26 Z Ari # 10.2-(15.0 MAX Dec 26? 0305+14 U Ari # <8.1-14.6> MAX Dec 3 0314-01 X Cet <8.8-12.3> min Dec 13 0320+43 Y Per <8.4-10.3> min Dec 4 0323+35 R Per %# <8.7-14.0> min Dec 23 0500+03A V Ori & <9.4-14.1> min Dec 16 0500-22 T Lep <8.3-12.9> MAX Dec 20 0524-04A S Ori <8.4-12.9> min Dec 23 0533+37 RU Aur %& <9.6-14.5> min Dec 20 *0536-04 Y Ori %# 9.3-(15.5 min Dec 24? 0543-31 S Col %# <9.3-13.8> MAX Dec 27 *0549+32 AY Aur %# 10.0-(15.0 min Dec 2? *0607+46A ST Aur %@ 10.3-15.8 MAX Dec 22? *0618+24 CD Gem @ 10.9-(15.7 min Dec 23? *0625+74 SU Cam %# 9.2-15.0 min Dec 4? 0631+59 U Lyn <9.5-14.4> MAX Dec 11 *0632-01 SY Mon @ 7.3-15.0 min Dec 24? 0640+30 X Gem <8.2-13.2> min Dec 2 *0640+13A UY Gem %& 11.0-(15.0 min Dec 16? 0651+11 Y Mon %@ <9.1-13.9> MAX Dec 3 0652-08 X Mon <7.4-9.1> MAX Dec 18 0701+22A R Gem <7.1-13.5> MAX Dec 31 *0706-19A SY CMa %& 8.8-14.2 min Dec 22? 0707-72 R Vol %@ <10.8-13.7> min Dec 26 *0710+26 WZ Gem # 9.5-16.0 min Dec 3? 0728+11 T CMi %@ <10.5-14.0> min Dec 24 *0753+20 BP Gem & 9.8-15.9 min Dec 10? *0808+37 RT Lyn 9.1-15.2 MAX Dec 13? *0819+35 X Lyn %& 9.3-15.5 min Dec 11? 0824-76 R Cha %# <8.5-13.6> min Dec 15 0833+50 X UMa <9.7-14.4> min Dec 26 0848+03 S Hya & <7.8-12.7> MAX Dec 14 0925-51 Y Vel %@ <9.5-13.8> MAX Dec 25 0949-53 Z Vel %@ <9.0-14.3> MAX Dec 13 0954+21 V Leo <9.1-13.7> MAX Dec 13 0955-63 RV Car %@ <11.3-16.2> MAX Dec 4 *1010-58B AF Car %@ 9.7-(14.5 MAX Dec 16? 1032-70 RZ Car %@ <10.0-15.4> min Dec 12 1105+06 S Leo <10.1-13.9> MAX Dec 15 1220+01 SS Vir <6.8-8.9> min Dec 23 1225+32 T CVn <9.6-11.9> MAX Dec 20 *1233+66 RV Dra <9.2-13.7> min Dec 22? 1233+07 R Vir <6.9-11.5> min Dec 17 1234+59 RS UMa <9.0-14.3> min Dec 10 1302-12 RV Vir %& <10.8-14.9> min Dec 7 *1322+62 RR UMa 8.7-14.8 min Dec 22? 1336-33 T Cen <5.5-9.0> min Dec 1 1345-36 RX Cen %@ <9.4>-(15.0 MAX Dec 13 1425+39 V Boo <7.0-11.3> MAX Dec 8(II) 1506-05 Y Lib %& <8.6-14.1> min Dec 4 1536-54 T Nor %@ <7.4-13.2> MAX Dec 25 1546+39 V CrB <7.5-11.0> MAX Dec 30 1558-23 RZ Sco %# <8.8-12.2> MAX Dec 13 1602-21A X Sco %& <11.0-14.3> min Dec 12 1611+38 W CrB <8.5-13.5> min Dec 25 1611-22A R Sco %# <10.4-15.0> min Dec 11 *1613+26 NP Her %# 9.3-12.8 min Dec 11? 1621+19 U Her <7.5-12.5> MAX Dec 19 1631+37 W Her <8.3-13.5> min Dec 21 *1640+12 UV Her 8.8-14.1 min Dec 17? 1648-44 RS Sco %& <7.0-12.2> MAX Dec 19 1702-15 R Oph <7.6-13.3> MAX Dec 26 1714+01 Z Oph <8.1-12.7> MAX Dec 16 *1719+04A V759 Oph %& 9.8-13.6 min Dec 18? *1726+18 UZ Her 8.3-15.5 min Dec 24? *1740+21 CF Her # 9.1-15.9 MAX Dec 11? 1805+65 W Dra <9.6-14.4> min Dec 31 1811+36 W Lyr <7.9-12.2> MAX Dec 5 *1813+06 BC Oph 8.8-15.6 MAX Dec 16? *1815+12 V450 Oph %# 10.6-(15.0 min Dec 10? *1820+39 TW Lyr %& 9.7-15.5 MAX Dec 8? 1842+43 RW Lyr <11.3-15.6> MAX Dec 7 1850+32 RX Lyr <11.9-(15.5> MAX Dec 20 1911-24 TY Sgr %& <9.8-15.0> min Dec 20 *1915+17 W Sge %# 9.0-(15.5 MAX Dec 31? *1918+31 AN Lyr 9.3-(15.0 MAX Dec 12? *1939+54 V369 Cyg 9.7-14.2 min Dec 26? *1955+51 CM Cyg 9.5-(15.0 MAX Dec 24? *2002+50 BU Cyg 9.6-(16.0 MAX Dec 22? *2002+09 HI Aql 10.4-(16.0 min Dec 24? *2007+20A ST Sge 9.9-14.4 min Dec 26? 2007+15A S Aql <8.9-12.4> min Dec 8 2007-47 R Tel %@ <8.6-14.8> min Dec 27 2008+12 RU Aql <9.4-14.0> min Dec 6 2008-22 W Cap <11.7-14.8> MAX Dec 12 2009+38 RS Cyg <7.2-9.0> min Dec 9 2009-06 Z Aql <9.0-13.9> MAX Dec 11 *2025+12 RX Del 10.2-(15.5 min Dec 28? 2034-29 R Mic <9.2-13.4> MAX Dec 25 2038+47 V Cyg <9.1-12.8> min Dec 17 *2039+37 DR Cyg %# 8.3-(15.5 min Dec 23? 2039-05 Y Aqr <9.4-14.8> min Dec 7 2050+17 X Del <9.0-14.1> min Dec 11 *2057-82 T Oct %@ <9.5-14.3> MAX Dec 23? 2101-24 V Cap %@ <9.2>-14.4 MAX Dec 16 2102-21 X Cap %@ <11.1-14.8> MAX Dec 4 2105-16 Z Cap # <9.5-14.0> min Dec 13 *2158+13 DG Peg 10.2-15.2 MAX Dec 4? *2219+55B SU Lac %@ 10.3-(15.0 MAX Dec 25? 2219-38 T Gru %@ <8.6-11.5> min Dec 23 2228-67 R Ind %@ <8.4-14.3> min Dec 30 *2331+09 FF Peg 9.8-15.8 MAX Dec 8? 2333+35 ST And <8.2-11.8> min Dec 28 2357-15 W Cet %& <7.6-14.4> min Dec 15 2358+55A Y Cas <9.8-14.5> min Dec 13