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

Mira Predictions - 2023

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 --- Jun/Jly
T Cas 7.9-11.9 445d 0.56 Apr/May Nov
o Cet 3.4-9.3 332d 0.38 Jun Feb & Dec/Jan 2024
R Com 8.5-14.2 363d 0.38 Jly Mar
S CrB 7.3-12.9 360d 0.35 Jly Mar
V CrB 7.5-11.0 358d 0.41 Aug/Sep Mar/Apr
W CrB 8.5-13.5 238d 0.45 Jan & Sep May/Jun
R Cyg 7.5-13.9 426d 0.35 Jan/Feb Oct/Nov
S Cyg 10.3-16.0 323d 0.50 Jan & Nov/Dec Jun
V Cyg 9.1-12.8 421d 0.46 Jan Aug
chi Cyg 5.2-13.4 408d 0.41 Jun ---

 

 

 

 

 

 

 

 

 

 

 

 

 

Star            Range          Period (days) (M-m)/P Max                           Min                
T Dra 9.6-12.3 422d 0.44 Mar Oct/Nov
RU Her 8.0-13.0 485d 0.43 --- Sep
SS Her 9.2-12.4 107d 0.48 Jan & Apr/May & Aug & Nov/Dec Mar & Jun/Jly & Oct
R Hya 4.5-9.5 389d 0.49 Nov May
SU Lac* 10.3-<15.0 302d 0.40 Jan/Feb & Nov/Dec Jly/Aug
RS Leo 9.7-<15.5 208d 0.31 Jly May & Dec
W Lyn 9.9-~15.0 295d 0.40 Mar & Dec/Jan 2024 Sep
X Lyn 10.2-~15.0 321d 0.40 Oct May/Jun
X Oph 6.8-8.8 329d 0.53 Aug Feb
U Ori 6.3-12.0 368d 0.38 May Jan & Dec/Jan 2024
R Ser 6.9-13.4 356d 0.41 Apr/May Nov
T UMa 7.7-12.9 257d 0.41 Jan/Feb & Oct Jun/Jly