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Table 1

Log of spectroscopic observations.

Object (type) Dates of observations Observatory Number of spectra Integration time (s) Average SN
KR Com (A) 22, 23 March 2018 Konkoly 35 900, 1200 67
V1073 Cyg (A) 27, 28 August 2018 Konkoly 36 1200 46
V2150 Cyg (A) 29 August 2018 Konkoly 21 1200 48
LS Del (W) 21 August 2018 NAO Rozhen 37 600 54
V972 Her (W) 27, 29, 30 April 2018 Konkoly 28 900 124
SW Lac (W) 22 August 2018 NAO Rozhen 42 600 52
EX Leo (A) 27 March; 27, 28 April 2018 Konkoly 27 1200 69
V351 Peg (A) 27, 28 September 2018 Konkoly 41 1200 96
V357 Peg (A) 21, 23 August 2018 NAO Rozhen 25 1200 55
OU Ser (W) 13, 14 June 2019 Konkoly 39 720 47
V781 Tau (W) 26 December 2018 Konkoly 33 900 47
HX UMa (A) 17 January 2019 Konkoly 30 900 67

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