Star Range Period (days) (M-m)/P Max Min
R And     6.9-14.3 409d 0.38 Aug/Sep Mar/Apr
W And 7.4-13.7 396d 0.42 Apr Nov/Dec
RW And    8.7-14.8 430d 0.36 Mar Dec
R Aqr 6.5-10.3 387d 0.42 Jun/Jly Jan
R Aql 6.1-11.5 284d 0.42 May Jan, Oct
UV Aur* 7.4-10.6 394d 0.50 Oct Mar/Apr
V Cam 9.9-15.4 522d 0.31 Jan ---
X Cam 8.1-12.6 144d 0.49 Apr,Sep Jan/Feb, Jun/Jly, Nov
SU Cnc* 10.5-<15.4 187d 0.43 Feb/Mar, Aug/Sep Jun, Dec
U CVn 9.9-14.6 346d 0.37 Jun/Jly Feb/Mar
RT CVn* 9.9-<15.0 254 0.45 Feb, Oct/Nov Jly

Mira Predictions - 2019

Predicted Dates for Maximum and Minimum of Mira Stars on the BAAVSS programme.

Predictions are shown only to the nearest month when the star can be seen at Maximum or Minimum.  This is done simply to avoid bias!

Where two months are given, the prediction could be in the latter of one or the beginning of the other.

At present there are no BAA charts for SU Cnc, U CVn, RT CVn, RS Leo & X Lyn.  Please use the AAVSO VSP for these stars.

*=Extreme Range.  <=Fainter than.  ~= Approximately.  M-m = the fraction of the period taken in rising from Min.(m) to Max.(M).

These predictions can also be found in the BAA Handbook.

 

 

 

 

 

 

 

 

 

Star Range Period (days) (M-m)/P Max Min
S Cas         9.7-14.8      612d 0.43 Feb/Mar ---
T Cas 7.9-11.9 445d 0.56 Aug Jan/Feb
o Cet 3.4-9.3 332d 0.38 Oct/Nov Jun/Jly
R Com 8.5-14.2 363d 0.38 Jly/Aug Mar
S CrB 7.3-12.9 360d 0.35 Aug Apr
V CrB 7.5-11.0 358d 0.41 Sep/Oct May
W CrB 8.5-13.5 238d 0.45 Feb/Mar, Oct Jun/Jly
R Cyg 7.5-13.9 426d 0.35 Aug/Sep Mar/Apr
S Cyg 10.3-16.0 323d 0.50 Jun/Jly Jan/Feb, Dec
V Cyg 9.1-12.8 421d 0.46 Jly ---
chi Cyg 5.2-13.4 408d 0.41 --- Jly/Aug

 

 

 

 

 

 

 

 

 

 

 

 

 

Star            Range          Period (days) (M-m)/P Max                           Min                
T Dra 9.6-12.3 422d 0.44 Sep/Oct Mar/Apr
RU Her 8.0-13.0 485d 0.43 Jan Oct
SS Her 9.2-12.4 107d 0.48 Apr, Jly/Aug, Nov Feb, May/Jun, Sep
R Hya 4.5-9.5 389d 0.49 Oct Apr
SU Lac* 10.3-<15.0 302d 0.40 Aug/Sep Apr/May
RS Leo 9.7-<15.5 208d 0.31 Jan/Feb, Aug/Sep Jun
W Lyn 9.9-~15.0 295d 0.40 Feb, Nov/Dec Aug
X Lyn 10.2-~15.0 321d 0.40 May 2018 Dec/2019 Jan, Nov
X Oph 6.8-8.8 329d 0.53 Jan/Feb, Dec/Jan 2020 Jly
U Ori 6.3-12.0 368d 0.38 Apr/May Dec
R Ser 6.9-13.4 356d 0.41 May/Jun Jan, Dec/Jan 2020
T UMa 7.7-12.9 257d 0.41 Jly/Aug Apr, Dec