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AAVSO International Database

Alert Notice 680: Monitoring of J0139 (ZTF J013906.17+524536.89) requested - corrected

Note: This Alert Notice has been edited to correct the mis-spelling of the short form of the star name. It is J0139, not J1039.  -  E. O. Waagen, September 18, 2019

September 18, 2019

AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
 - Campaigns and Observing Reports
: https://www.aavso.org/j0139-campaign

Alert Notice 676: Nova in Orion: N Ori 2019 = PNV J06095740+1212255

Update: Nova Ori 2019 (PNV J06095740+1212255) has been assigned the name V2860 Ori, according to E. V. Kazarovets (Institute of Astronomy, Russian Academy of Sciences). Please use V2860 ORI in reporting your observations.  -  Elizabeth O. Waagen, August 15, 2019

August 14, 2019

Alert Notice 675: V386 Ser - second rescheduling of HST observations

Note: Dr. Szkody informs us that the HST observations of V386 Ser have been scheduled for 2019 Aug 15  22:04:49 UT - Aug 16 00:31:52 UT. The critical night is August 14 - please report your observations of V386 Ser as soon as possible after you make them so that HST can be notified in time to make the go-nogo decision. - Elizabeth O. Waagen, August 6, 2019

August 2, 2019

Alert Notice 674: UU Aqr being observed with Chandra

July 25, 2019

AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
  -   Campaigns and Observing Reports: https://www.aavso.org/six-novalikes-2018-campaign
  -   Cataclysmic Variables: https://www.aavso.org/six-novalikes-2018-campaign-01

Alert Notice 673: SS Cyg photometry and spectroscopy requested to complement TESS monitoring

July 25, 2019

AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
  -   Campaigns and Observing Reports: https://www.aavso.org/ss-cyg-tess-2019
  -   Cataclysmic Variables: ss-cyg-tess-2019-01

Dr. Stella Kafka (AAVSO) has requested multicolor photometry and spectra of the dwarf nova SS Cyg to complement monitoring by the TESS satellite taking place now to mid-September.

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