THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
BITNET: aavso@cfa SPAN: cfa::aavso
INTERNET: aavso@cfa.harvard.edu
Tel. 617-354-0484 FAX 617-354-0665
January 29, 2008: Further to AAVSO Special Notice #93, the pre main-sequence eruptive variable EX Lup (AAVSO 1556-40) appears to be undergoing a major outburst, exceeding the previous brightest maximum recorded in 1955. Albert Jones (Nelson, NZ) reports that EX Lup reached a visual magnitude of 7.9 on 2008 Jan 29.66 UT (JD 2454495.1600). This exceeds the previous brigtest recorded magnitude of this object (m(vis) = 8.7 on JD 2435385.9 and 2435459.1) in 1955-56.
