HIP 33753(mag7.7) by (479)Caprera on 2018 Dec. 10 revised on Mar.08 ** Prediction: Long.: 138o 00' 00" E, Lat.: 36o 16' 33" N PredTime: 20h 27m 52s **** Successful observations: Observer: Akie Hashimoto (JOIN:18579) Place: Chichibu, Saitama, Japan Long.: 139o 02' 00.2" E, Lat.: 35o 58' 04.7" N, Height: 355m (JGD2000=WGS84) Method: Visual, 40cm Cass, x290 Time signal: GHS, Stop watch Result: D 20h 27m 39.98s (P.E. 0.4s corrected) R 20h 27m 50.57s (P.E. 0.3s corrected) Observer: Reijin Aikawa (JOIN:18583) Place: Sakado, Saitama, Japan Long.: 139o 26' 50.18" E, Lat.: 35o 56' 57.13" N, Height: 21.7m (JGD2000=WGS84) Method: Visual, 20.3cm F10 Schmidt Cass, x62 Time signal: TEL Result: D 20h 27m 37.5s +/-0.3s (P.E. 0.6s corrected) R 20h 27m 47.1s +/-0.3s (P.E. 0.6s corrected) Observer: Shigeo Uchiyama (JOIN:18585,18632) Place: Kashiwa, Chiba, Japan Long.: 139o 58' 50.8" E, Lat.: 35o 52' 08.4" N, Height: 20m (JGD2000=WGS84) Method: VCR, 25cm F10 Schmidt Cass, eyepiece40mm/8mm collimate ,WAT-100N Time signal: GHS,TIVi Result: D1 20h 27m 34.61s +/-0.01s (51% brightness remained. Possibly secondary comp.) D2 20h 27m 34.83s +/-0.01s (Disappearance complete. Possibly primary comp.) R1 20h 27m 42.80s +/-0.01s (42% brightness. Possibly secondary comp.) R2 20h 27m 43.64s +/-0.01s (Reappearance complete. Possibly primary comp.) Note: The timing was analyzed by Kazuhisa Miyashita. Note: This event was occurred gradually. The disappearance was made 4Fr, the reappearance was made 3Fr. Note: Observer's own result was given, Result: D 20h 27m 34.83s +/-0.02s R 20h 27m 42.80s +/-0.02s Observer: Kazumi Terakubo (JOIN:18586) Place: Kokubunji, Tokyo, Japan Long.: 139o 28' 17.3" E, Lat.: 35o 41' 51.4" N, Height: 78.4m (JGD2000=WGS84) Method: Visual, 7.6cm Refractor, x27 Time signal: BPM Result: D 20h 27m 35.0s (P.E. 0.4s corrected) R 20h 27m 45.3s (P.E. 0.4s corrected) Note: The both disappearance reappearance are occurred slowly (not momently). The disappearance is slower than reappearance. Observer: Hidehito Yamamura (JOIN:18588,18632) Place: Hakusan, Ishikawa, Japan Long.: 136o 29' 12.5" E, Lat.: 36o 28' 56.4" N, Height: 3m (JGD2000=WGS84) Method: VCR, 20cm F10 Schmidt Cass, WAT-910HX (slow shutter 2Fr), Limovie Time signal: GHS-OSD Result: D1a 20h 28m 00.58s +/-0.01s (62% brightness remained. Possibly secondary comp.) D1b 20h 28m 02.05s +/-0.01s (Disappearance complete. Possibly primary comp.) R1a 20h 28m 03.92s +/-0.01s (62% brightness. Possibly primary comp.) D2a 20h 28m 05.10s +/-0.01s (33% brightness remained. Possibly primary comp.) D2b 20h 28m 05.34s (3% brightness remained. Possibly 3rd comp.) D2b 20h 28m 05.63s (Disappearance complete. Possibly 4th comp.) R2a 20h 28m 06.56s +/-0.01s (58% brightness. Possibly primary comp.) R2b 20h 28m 07.78s +/-0.01s (Reappearance complete. Possibly secondary comp.) (WAT-910HX delay -0.083s corrected) Note: The decline event was occured two times. Note: The decline event was occured stepwise. Note: Observer's own result was given, Result: D1 20h 28m 00.627s +/-0.033s (Half brightness remained) D1 20h 28m 02.021s +/-0.017s (Disappearance complete) R1 20h 28m 03.850s +/-0.017s (Half brightness remained) D2 20h 28m 05.299s +/-0.033s (Disappearance complete) R2 20h 28m 06.626s +/-0.033s (Half brightness) R2 20h 28m 07.761s +/-0.033s (Reappearance complete) (WAT-910HX delay -0.083s corrected) Observer: Mikiya Sato (JOIN:18590,18839) revised on Mar.08 Place: Fuchu, Tokyo, Japan Long.: 139o 28' 34.4" E, Lat.: 35o 40' 54.5" N, Height: 60m (JGD2000=WGS84) Method: Movie by Camera, f300mm F2.8 Camera lens Time signal: BPM Result: D1 20h 27m 33.67s +/-0.13s D2 20h 27m 34.35s +/-0.05s R 20h 27m 44.65s +/-0.05s Note: Disappearance occured stepwise. Note: The timing is analyzed by Kazuhisa Miyashita. Observer: Toshio Hirose (JOIN:18591) Place: Ota, Tokyo, Japan Long.: 139o 41' 20.3" E, Lat.: 35o 34' 12.7" N, Height: 11m (JGD2000=WGS84) Method: VCR, 6.5cm F7.7 Refractor, WAT-120N+(slow shutter 4Fr), Limovie Time signal: BPM Result: D1a 20h 27m 31.6s +/-0.4s (Possibly Secondary comp.) D1b 20h 27m 32.4s +/-0.4s (Possibly Primary comp.) R 20h 27m 42.1s +/-0.4s Observer: Kunihiro Shima (JOIN:18613,18632) Place: Fujimi, Nagano, Japan Long.: 138o 18' 16" E, Lat.: 35o 53' 36" N, Height: 139m (JGD2000=WGS84) Method: Movie by Camera, 45cm F12 Cass, F4.6 Reducer, Nikon D3100, Limovie Time signal: NTP Result: D1a 20h 27m 43.60s +/-0.01s (42% brightness remained. Possibly secondary comp.) D2d 20h 27m 44.92s +/-0.01s (Disappearance complete. Possibly primary comp.) R1a 20h 27m 51.46s +/-0.01s (29% brightness. Possibly primary comp.) R2b 20h 27m 51.73s +/-0.01s (Reappearance complete. Possibly secondary comp.) Note: The timing is analyzed by Kazuhisa Miyashita. Note: The decline event was occured stepwise. ** Negative observations: Observer: Toshihiro Horaguchi (JOIN:18578) Place: National Museum of Nature and Science, Tsukuba, Ibaraki, Japan Long.: 140o 06' 40.7" E, Lat.: 36o 06' 05.1" N, Height: 40m (JGD2000=WGS84) Method: VCR, 50cm F12 Cass, WAT-100N Time signal: GHS-OSD Observer: Satoshi Watanabe (JOIN:18587) Place: Oyama, Tochigi, Japan Long.: 139o 47' 55.64" E, Lat.: 36o 18' 23.64" N, Height: 43.0m (JGD2000=WGS84) Method1: Camera, 30cm F7.2 Cass Method2: Visual, 6cm Refractor, x100 Time signal: Wave clock Note: Reported by Akie Hashimoto Observer: Hayato Watanabe (JOIN:18600) Place: Inabe, Mie, Japan Long.: 136o 33' 33.9" E, Lat.: 35o 07' 10.2" N, Height: 92m (JGD2000=WGS84) Method: VCR, 13cm F7.7 Refractor, WAT-120N(slow shutter 1Fr), Limovie Time signal: GHS-OSD