https://www.astronomerstelegram.org Young Stellar Object, from The Astronomer's Telegram en-us https://www.astronomerstelegram.org/?read=17823 E. Portnoi, L. A. Hillenbrand, A. S. Carvalho E. Portnoi, L. A. Hillenbrand, A. S. Carvalho lah@astro.caltech.edu Credentialed by: Lynne Hillenbrand (lah@astro.caltech.edu) The Astronomer's Telegram ATel17823 S. Kaneko first announced an optical transient that was associated by Grosso et al. (2025) in ATel #17546 with unstudied source IRAS 21204+4913. Kochkina et al. ... 2026-05-30T18:23:25-00:00 https://www.astronomerstelegram.org/?read=17767 Yoshinori Yonekura, Ross A. Burns Yoshinori Yonekura, Ross A. Burns yoshinori.yonekura.sci@vc.ibaraki.ac.jp Credentialed by: Yoshinori Yonekura (yoshinori.yonekura@gmail.com) The Astronomer's Telegram ATel17767 We have detected the second flux rise since 2023-2024 in the 6.668 GHz Class II methanol maser toward G11.497-1.485 (IRAS 18134-1942) (RA, DEC) = (18h16m22.13s, -19d41'27.100") using Hitachi 32-m radio telescope operated by Ibaraki University. ... 2026-04-27T11:23:05-00:00