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Table 5
Values of superhump periods of MN Dra form 2002 until 2015.
| Periods | Rate of change *error*Ṗ | Author | |
| [days] | |||
|
|
|||
| October 2002 | 0.104885(93) | increasing | Nogami et al. (2003) |
| December 2002 | 0.10623(16) | decreasing (− 1.7(2) × 10-3) | Nogami et al. (2003) |
| May 2009 | 0.105416(44) | decreasing (− 24.5 × 10-5) | Pavlenko et al. (2010) |
| July 2009 | 0.105416 | decreasing (− 3.2 × 10-4) | Samsonov et al. (2010) |
| September 2009 | 0.105416 | decreasing (− 8.3 × 10-4) | Samsonov et al. (2010) |
| July–August 2012 | 0.105299(61) | no data available | Kato et al. (2014b) |
| September 2013 | 0.10496(2) | no changes | This work |
| November 2013 | 0.105040(66) | decreasing (− 14.8(9.5) × 10-5) | Kato et al. (2014b) |
| June–July 2015 | 0.10512(3) | no changes | This work |
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