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Return-Path: <atel@astronomerstelegram.org> Delivered-To: stefano@bicar.it Received: by mail.planetcloud-host.com (Postfix, from userid 1016) id C33B0145DD; Sun, 12 Jul 2026 09:03:23 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on mail.planetcloud-host.com X-Spam-Level: X-Spam-Status: No, score=-0.0 required=5.0 tests=RCVD_IN_DNSWL_BLOCKED, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=disabled version=3.4.0 Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=174.142.199.243; helo=server.astronomerstelegram.org; envelope-from=atel@astronomerstelegram.org; receiver=stefano@bicar.it Received: from server.astronomerstelegram.org (astronomerstelegram.org [174.142.199.243]) by mail.planetcloud-host.com (Postfix) with ESMTP id B6A57144A3 for <stefano@bicar.it>; Sun, 12 Jul 2026 09:03:20 +0200 (CEST) Received: from server.astronomerstelegram.org (localhost [127.0.0.1]) by server.astronomerstelegram.org (Postfix) with ESMTP id AE5EC2880670 for <stefano@bicar.it>; Sun, 12 Jul 2026 03:03:19 -0400 (EDT) To: stefano@bicar.it From: atel@astronomerstelegram.org Subject: ATel 17884 Message-Id: <20260712070319.AE5EC2880670@server.astronomerstelegram.org> Date: Sun, 12 Jul 2026 03:03:19 -0400 (EDT) ------------------------------------------------------------------------------ The Astronomer's Telegram is free to read, free to publish, free to use. Thanks to the support of our patrons, we can continue to keep it free. https://www.patreon.com/astronomerstel ------------------------------------------------------------------------------ The Astronomer's Telegram http://www.astronomerstelegram.org ------------------------------------------------------------------------------ Posted: Within the last 24 hours ============================================================================== ATEL #17884 ATEL #17884 Title: Exceptionally high optical state of the blazar B2 1420+326 Author: Rumen Bachev, IA-NAO, BAS Queries: bachevr@astro.bas.bg Posted: 11 Jul 2026; 09:59 UT Subjects:Optical, AGN, Blazar, Quasar Following the reports of unusually high state across the spectrum (ATel #17873, ATel #17874 and the references therein) of the changing-look blazar B2 1420+326 (OQ 334, z=0.68) we continued monitoring this object with the 60-cm Belogradchik telescope, Bulgaria. Photometric and polarimetric measurements were performed during the nights of July 9th and 10th. The preliminary results are listed below: <table border="1"> <tr> <th>JD</th> <th>R-mag (err) </th> <th>P (err) [%]</th> <th>EVPA (err) [deg]</th> </tr> <tr> <td>2461231.37</td> <td>12.42 (0.03)</td> <td>12 (1) </td> <td>46 (2) </td> </tr> <tr> <td>2461232.34</td> <td>12.52 (0.03)</td> <td>8 (1)</td> <td>32 (2) </td> </tr> </table> To the best of our knowledge, brighter R-band magnitudes have never been reported before for this object, especially what concerns the night of July 9th. Further multiwavelength observations are encouraged. This research was partially supported by the Bulgarian National Science Fund of the Ministry of Education and Science under grants KP-06-H78/5 (2023), and KP-06-H88/4 (2024). ------------------------------------------------------------------------------ Password Certification: Rumen Bachev (bachevr@astro.bas.bg) https://www.astronomerstelegram.org/?read=17884 ============================================================================== ============================================================================== This is an automatically-generated notice. You can remove yourself permanently from receiving both the Daily Email Digest and Instant Email Notices from The Astronomer's Telegram by following this link: https://www.astronomerstelegram.org?unsubscribe&confirmation=a803d34e7ea924f9a4142bac00763549&address=stefano@bicar.it
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