Dear all,
I have pleasure confirming the eruption of U Sco. Using a 40-cm f/5.1 telescope and SX-46 CCD camera at CBA Extremadura Observatory (Spain), I obtained 15 V-band exposures of U Sco, yielding following average magnitude:
2022 Jun 06.886 UT, V = 8.71
Congrats to Masayuki-san with this detection.
Best regards Tonny
Tonny Vanmunster CBA Belgium Observatory CBA Extremadura Observatory www.cbabelgium.com www.peranso.com
-----Original Message----- From: Patrick Schmeer via vsnet-outburst vsnet-outburst@ooruri.kusastro.kyoto-u.ac.jp Sent: Monday, 6 June 2022 21:41 To: vsnet-alert@ooruri.kusastro.kyoto-u.ac.jp; vsnet-outburst@ooruri.kusastro.kyoto-u.ac.jp; cvnet-outburst@groups.io; baavss-alert@groups.io Subject: [vsnet-outburst 28764] U Sco eruption (not yet confirmed): recent ASAS-SN Sky Patrol data
U Scorpii (NR) https://www.aavso.org/vsx/index.php?view=detail.top&oid=32820
Recent ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S and Kochanek et al. 2017PASP..129j4502K) light curve and data: https://asas-sn.osu.edu/sky-patrol/coordinate/93c6536d-22e4-4a75-8ced-7997e4... SCOU 20220605.8889 <17.41g ASN
No minor planet brighter than mag. 15 was was within a radius of 1° on 2022 June 6.72 UT.
Eruptions [sic] occur every 10 +/-2 years. The previous one was detected on 2010 January 28.
Confirmation of the current eruption, spectroscopy and multiband as well as time-resolved photometry are urgently required.
Clear skies, Patrick ------- Masayuki Moriyama wrote on Monday, 6 June 2022 at 18:55:54 UTC;
U Sco outburst!!
SCOU 20220606.56664 <173C Myy.VSOLJ SCOU 20220606.72030 114C Myy.VSOLJ
observer: M. Moriyama (Sasebo, Nagasaki, Japan) instruments: 25cmSCT(F10)+ x0.63 Reducer +ST-10XME