The diagrams show a 12 order polynomial fit to the mean lightcurve at maximum. The lightcurves is based on data from AAVSO, AFOEV, VSOLJ, BAAVSS, ASAS-SN and DASCH. The lightcurves covers 80% of the period around the maximum.
For each individual maximum a 8 order polynomial was fitted and the time for the maximum was established. Each individual maximum was centred with the time for maximum as 0 and then overlaid on each other. Finally a 12 order polynomial fit was made based on the overlaid curve and using observations within of 80% of the star's period around maximum.
The mean lightcurves was then overlaid and best fitted to each identified individual maximum for the star and once again was the time for maximum and magnitude at maximum recorded. This data together with O-C diagrams for the selected Miras can be found at O-C diagrams for Mira stars.
The period elements and spectral type under each diagram is from GCVS4, the magnitude at max is from the calculated maxima.
Delphinus | ||||
Period: 285.07, Epoch: 2444091 Mag at max: 8.4 ±0.3 (7.7-9.4) Spectral type: M5e-M6e |
Period: 277.75, Epoch: 2444887 Mag at max: 8.9 ±0.2 (8.2-9.7) Spectral type: M5e-M8 |
Period: 332.02, Epoch: 2443296 Mag at max: 9.4 ±0.3 (8.5-10.3) Spectral type: M3e-M6e |
Period: 533.51, Epoch: 2441065 Mag at max: 10.3 ±0.6 (9.0-12.0) Spectral type: M4e-M6e |
|
Period: 281.04, Epoch: 2441551 Mag at max: 9.1 ±0.4 (8.4-10.6) Spectral type: M4e-M6e |
Period: 468.4, Epoch: 2442707 Mag at max: 10.4 ±0.8 (8.8-12.4) Spectral type: M8e |
Period: 304.48, Epoch: 2442317 Mag at max: 9.2 ±0.4 (8.2-10.2) Spectral type: S5,2.5e-S7,2e: |
Period: 260.58, Epoch: 2438900 Mag at max: 10.8 ±0.2 (10.4-11.2) Spectral type: M3 |
|
Period: 185.63, Epoch: 2442320 Mag at max: 10.9 ±0.3 (10.4-11.7) Spectral type: M2e |
Period: 194.59, Epoch: 2436521 Mag at max: 11.8 ±0.3 (11.2-12.6) Spectral type: |
|||
Dorado | ||||
Period: 235.86, Epoch: 2440741 Mag at max: 9.4 ±0.4 (8.7-10.6) Spectral type: |
||||
Draco | ||||
Period: 245.6, Epoch: 2444779 Mag at max: 7.6 ±0.3 (6.8-9.0) Spectral type: M5e-M9eIII |
Period: 421.62, Epoch: 2443957 Mag at max: 9.9 ±0.5 (8.6-11.0) Spectral type: C6,2e-C8,3e(N0e) |
Period: 316.13, Epoch: 2444290 Mag at max: 9.7 ±0.2 (9.0-10.4) Spectral type: M6e-M8 |
Period: 278.33, Epoch: 2444451 Mag at max: 10 ±0.2 (9.2-10.6) Spectral type: M4e |
|
Period: 278.6, Epoch: 2442176 Mag at max: 9.8 ±0.4 (8.9-11.3) Spectral type: M3e-M4e |
Period: 257.33, Epoch: 2444167 Mag at max: 11.1 ±0.3 (10.0-12.0) Spectral type: M5e: |
Period: 325.79, Epoch: 2444448 Mag at max: 9 ±0.5 (8.2-10.7) Spectral type: M5e |
Period: 279.41, Epoch: 2435494 Mag at max: 9.9 ±0.2 (9.2-10.6) Spectral type: M5 |
|
Period: 208.14, Epoch: 2443526 Mag at max: 10 ±0.5 (9.0-11.2) Spectral type: M1e-M3e |
Period: 256.24, Epoch: 2443714 Mag at max: 9.7 ±0.3 (8.6-10.6) Spectral type: M7e |
Period: 267.9, Epoch: 2441209 Mag at max: 9.6 ±0.3 (8.9-10.4) Spectral type: M7e |
||
Equuleus | ||||
Period: 260.76, Epoch: 2442921 Mag at max: 9.4 ±0.4 (8.4-10.7) Spectral type: M3e-M4e |
Period: 271.3, Epoch: 2443716 Mag at max: 10.1 ±0.4 (9.4-11.2) Spectral type: |
|||
Eridanus | ||||
Period: 252.29, Epoch: 2442079 Mag at max: 8.1 ±0.4 (7.3-9.9) Spectral type: M3e-M5e |
Period: 274.91, Epoch: 2440110 Mag at max: 9.5 ±0.4 (8.5-10.8) Spectral type: M4e |
Period: 376.63, Epoch: 2440345 Mag at max: 8.7 ±0.6 (7.8-11.3) Spectral type: M7e-M9 |
||
Fornax | ||||
Period: 388.73, Epoch: 2441974 Mag at max: 9.4 ±0.7 (8.0-11.4) Spectral type: C4,3e(Ne) |
||||
Gemini | ||||
Period: 369.91, Epoch: 2443325 Mag at max: 7.1 ±0.4 (6.4-8.5) Spectral type: S2,9e-S8,9e(Tc) |
Period: 293.23, Epoch: 2443578 Mag at max: 9.1 ±0.4 (8.2-10.3) Spectral type: M4e-M8e |
Period: 287.79, Epoch: 2444710 Mag at max: 8.7 ±0.2 (8.1-9.3) Spectral type: S1.5,5e-S9,5e |
Period: 274.8, Epoch: 2442694 Mag at max: 8.5 ±0.4 (7.5-9.8) Spectral type: M4(S)e-M8 |
|
Period: 264.16, Epoch: 2443553 Mag at max: 8.4 ±0.3 (7.5-9.6) Spectral type: M5e-M8e(Tc:) |
Period: 246.23, Epoch: 2443854 Mag at max: 9.4 ±0.3 (8.8-10.3) Spectral type: M5e-M9e |
Period: 252.9, Epoch: 2435520 Mag at max: 10.7 ±0.3 (10.2-11.3) Spectral type: |
Period: 330.8, Epoch: 2438048 Mag at max: 10 ±0.3 (9.4-10.8) Spectral type: M3e |
|
Period: 317, Epoch: 2433999 Mag at max: 9.1 ±0.2 (8.7-9.6) Spectral type: C5,3e(Ne) |
Period: 246.5, Epoch: 2443955 Mag at max: 10.5 ±0.4 (9.9-11.1) Spectral type: M8e |
Period: 155.8, Epoch: 2439909 Mag at max: 11.6 ±0.4 (10.9-12.5) Spectral type: |
||
Grus | ||||
Period: 331.96, Epoch: 2440957 Mag at max: 8.1 ±0.5 (6.9-9.5) Spectral type: M5e-M7II-IIIe |
Period: 401.51, Epoch: 2440608 Mag at max: 7.6 ±0.6 (6.3-9.6) Spectral type: M5e-M8IIIe |
Period: 136.49, Epoch: 2442072 Mag at max: 8.6 ±0.3 (7.4-9.5) Spectral type: M1Iae-M2Ibe |
||
Hercules | ||||
Period: 318.14, Epoch: 2445058 Mag at max: 8.9 ±0.4 (8.0-10.5) Spectral type: M6e |
Period: 307.28, Epoch: 2445054 Mag at max: 7.5 ±0.3 (6.6-8.5) Spectral type: M4,Se-M7.5,Se |
Period: 164.98, Epoch: 2445306 Mag at max: 7.9 ±0.4 (7.0-9.3) Spectral type: M2.5e-M8e |
Period: 406.1, Epoch: 2444994 Mag at max: 7.7 ±0.4 (6.9-8.8) Spectral type: M6.5e-M9.5e |
|
Period: 280.03, Epoch: 2445059 Mag at max: 8.3 ±0.3 (7.3-9.4) Spectral type: M3e-M5e |
Period: 219.7, Epoch: 2445194 Mag at max: 8 ±0.2 (7.6-8.7) Spectral type: M4e-M8: |
Period: 298.08, Epoch: 2445104 Mag at max: 9.8 ±0.5 (8.5-11.0) Spectral type: M4e |
Period: 484.83, Epoch: 2444899 Mag at max: 8.1 ±0.5 (7.2-9.5) Spectral type: M6e-M9 |
|
Period: 205.23, Epoch: 2445143 Mag at max: 10.2 ±0.5 (9.0-11.4) Spectral type: M2e |
Period: 221.47, Epoch: 2445211 Mag at max: 9 ±0.3 (8.3-10.0) Spectral type: M4e-M6e |
Period: 329.05, Epoch: 2445143 Mag at max: 9.6 ±0.4 (8.9-10.9) Spectral type: M5e-M6e |
Period: 107.36, Epoch: 2445209 Mag at max: 9.2 ±0.4 (7.8-10.5) Spectral type: M0e-M5e |
|
Period: 238.99, Epoch: 2445143 Mag at max: 10.1 ±0.4 (9.0-11.2) Spectral type: M5e |
Period: 116.91, Epoch: 2445248 Mag at max: 8.5 ±0.3 (8.0-9.5) Spectral type: M1e-M6e |
Period: 304.28, Epoch: 2445254 Mag at max: 9.9 ±0.4 (9.0-11.4) Spectral type: M4e |
Period: 341.95, Epoch: 2442934 Mag at max: 9 ±0.3 (8.5-9.9) Spectral type: M6e-M6.5e |
|
Period: 263.74, Epoch: 2442175 Mag at max: 9.1 ±0.3 (8.5-9.7) Spectral type: M5e |
Period: 385.64, Epoch: 2439959 Mag at max: 11.1 ±0.4 (10.3-11.9) Spectral type: M7 |
Period: 300.38, Epoch: 2441914 Mag at max: 10.1 ±0.3 (9.3-10.8) Spectral type: M5e: |
Period: 247.8, Epoch: 2427900 Mag at max: 11.4 ±0.4 (10.8-12.3) Spectral type: |
|
Period: 171.69, Epoch: 2433887 Mag at max: 10.9 ±0.3 (10.5-11.7) Spectral type: M0 |
Period: 248.99, Epoch: 2445149 Mag at max: 9.9 ±0.4 (9.3-10.8) Spectral type: M4e |
Period: 269.14, Epoch: 2440750 Mag at max: 8.6 ±0.2 (8.1-9.2) Spectral type: M2e |
Period: 268.92, Epoch: 2436782 Mag at max: 11.2 ±0.3 (10.2-11.8) Spectral type: M4 |
|
Period: 306.2, Epoch: 2434902 Mag at max: 9.6 ±0.4 (9.1-10.5) Spectral type: M0 |
Period: 337.7, Epoch: 2436379 Mag at max: 10.4 ±0.4 (9.8-11.2) Spectral type: M6e |
Period: 226, Epoch: 2431575 Mag at max: 10.5 ±0.2 (10.2-10.8) Spectral type: |
Period: 216.28, Epoch: 2440391 Mag at max: 11 ±0.3 (10.4-11.8) Spectral type: |
|
Period: 263.43, Epoch: 2440446 Mag at max: 10.5 ±0.3 (9.9-11.1) Spectral type: |
Period: 212.4, Epoch: 2433529 Mag at max: 11.7 ±0.4 (10.8-12.4) Spectral type: |
Period: 448, Epoch: 2439643 Mag at max: 10.1 ±0.4 (9.4-11.1) Spectral type: C6,3e(N) |
||
Horologium | ||||
Period: 407.6, Epoch: 2441494 Mag at max: 5.8 ±0.5 (4.2-7.6) Spectral type: M5e-M8eII-III |
Period: 217.6, Epoch: 2441957 Mag at max: 8.4 ±0.4 (7.4-10.7) Spectral type: M5IIe |
Period: 348.4, Epoch: 2434638 Mag at max: 8.4 ±0.4 (7.7-9.1) Spectral type: M6IIIe |
||
Hydra | ||||
Period: 388.87, Epoch: 2443596 Mag at max: 5 ±0.3 (4.0-5.7) Spectral type: M6e-M9eS(Tc) |
Period: 256.63, Epoch: 2443509 Mag at max: 7.9 ±0.3 (7.2-9.5) Spectral type: M4e-M8.0e |
Period: 298.7, Epoch: 2441975 Mag at max: 7.8 ±0.3 (7.0-8.8) Spectral type: M3e-M9:e |
Period: 301.1, Epoch: 2441060 Mag at max: 8.6 ±0.3 (8.0-9.5) Spectral type: M7e-M8.5e |
|
Period: 343.49, Epoch: 2439212 Mag at max: 9.4 ±0.4 (8.3-10.6) Spectral type: M3.0e-M8e |
Period: 338.6, Epoch: 2439169 Mag at max: 10 ±0.5 (9.0-11.5) Spectral type: M6e |
Period: 331.5, Epoch: 2443162 Mag at max: 8.5 ±0.5 (7.5-10.5) Spectral type: M6e-M8.8e |
Period: 304.75, Epoch: 2440282 Mag at max: 9.4 ±0.4 (8.8-10.3) Spectral type: Me |
|
Period: 260.95, Epoch: 2442527 Mag at max: 9.3 ±0.2 (9.0-9.8) Spectral type: M4e |