Skip to main content

AAVSO Alert Notice

Title Posted By Updated/commented date Typesort icon
Alert Notice 234: Rare outburst of 1858+42 V493 Lyrae AND Second set of observations scheduled in international observing campaign on 1913+49 AM Herculis weo 44 weeks 1 day ago Page
Alert Notice 278: 1017-49 V383 Velorum (NSV 4834) = new dwarf nova weo 44 weeks 1 day ago Page
Alert Notice 450: Request for observations of SDSS J080434.20+510349.2‭ ‬in support of HST observations weo 3 years 3 weeks ago Page
Alert Notice 397: Request for optical photometry of the bright X-ray binary V884 Sco (4U 1700-377) weo 1 year 2 weeks ago Page
Alert Notice 308: 0409-71 VW Hyi in outburst - update on request for monitoring weo 1 year 1 week ago Page
Alert Notice 463: Nova Sagittarii 2012 No. 3 = PNV J17522579-2126215 weo 2 years 20 weeks ago Page
Alert Notice 360: Request to Monitor U Gem and SS Cyg for Radio Observations weo 1 year 2 weeks ago Page
Alert Notice 384: Outburst of GK Persei weo 1 year 2 weeks ago Page
Alert Notice 140: Nova Centauri 1991 AND Nova Herculis 1991 weo 1 year 1 week ago Page
Alert Notice 204: A very successful Astro-2 mission completed AND Superoutburst of 1051+50 CY Ursae Majoris AND Outburst of 0203+56a UV Persei AND Reminder - monitoring 0749+22 U Geminorum AND Correction to AAVSO Alert Notice 196 - 2110+13 EF Pegasi weo 44 weeks 1 day ago Page
Alert Notice 479: Supernova 2013aa in NGC 5643 = PSN J14323388-4413278 weo 1 year 39 weeks ago Page
Alert Notice 343: Rare outburst of 2320-08 EG Aquarii weo 1 year 2 weeks ago Page
Alert Notice 151: Superoutburst of 0203+56A UV Persei AND Superoutburst of 0803+62 SU Ursae Majoris AND Supernova in NGC 4374 [SN 1991bg] weo 52 weeks 3 hours ago Page
Alert Notice 291: 1348-63 Nova Centauri 2001 - possible nova in Centaurus [V1039 Cen] weo 44 weeks 1 day ago Page
Alert Notice 433: Request for observations of GW Lib in support of HST observations weo 28 weeks 3 days ago Page
Alert Notice 189: 1157+62 Supernova 1994W in NGC 4041 weo 44 weeks 1 day ago Page
Alert Notice 418: Request for monitoring of V842 Cen in support of HST Observations weo 1 year 15 weeks ago Page
Alert Notice 327: Nova Scuti 2005 - Probable Nova in Scutum weo 1 year 1 week ago Page
Alert Notice 237: Observations of dwarf novae requested AND Request to monitor 1807+69 3C 371 (Draco) AND Bright maximum of 0214-03 omicron Cet (Mira) weo 44 weeks 1 day ago Page
Alert Notice 274: 1846-01D Probable nova in Aquila = CI Aquilae?? weo 44 weeks 1 day ago Page
Alert Notice 447: Nova Sco 2011 No. 2 = PNV J16364440-4132340 = PNV J16364300-4132460 weo 3 years 10 weeks ago Page
Alert Notice 504: Epsilon Aur monitoring during predicted pulsation phase weo 9 weeks 1 day ago Page
Alert Notice 400: Nova Sagittarii 2009 Number 3 weo 1 year 2 weeks ago Page
AAVSO Alert Notice 311: 0505-68 YY Dor - Possible recurrent nova AND 2247-14 IL Aqr - Exoplanet transit campaign weo 1 year 1 week ago Page
Alert Notice 221: Fading of 2007+20 FG Sge AND Request to monitor 2138+43 SS Cyg for observations with HST, EUVE, and RXTE AND 1058+38 Markarian 421 in outburst AND Activity of 1814+39 AM Her continues AND 1746-17 -- Sgr is a new planetary-nebula nucleus weo 44 weeks 1 day ago Page
Alert Notice 364: Nova Vulpeculae 2007 No. 2 = V459 Vul weo 1 year 2 weeks ago Page
Alert Notice 387: V1721 Aql (Nova Aql 2008) weo 1 year 2 weeks ago Page
Alert Notice 137: Last list for monitoring of ROSAT targets weo 1 year 1 week ago Page
Alert Notice 208: AAVSO has new Internet address AND Request to monitor 0409-71 VW Hydri AND Request to monitor 2138+43 SS Cygni weo 44 weeks 1 day ago Page
Alert Notice 476: Multicolor photometry of triple system b Per requested weo 1 year 16 weeks ago Page
Alert Notice 346: 1651-32 V1280 Sco = Nova Scorpii 2007 weo 1 year 2 weeks ago Page
Alert Notice 371: Support for XMM-Newton Observations of SS Aurigae weo 1 year 2 weeks ago Page
Alert Notice 287: 2059+48 Nova Cygni 2001 No. 2 AND 2003+17 WZ Sagittae superoutburst continues - recovering from dramatic dip [V2275 Cyg] weo 44 weeks 1 day ago Page
Alert Notice 295: 1753-30B Nova Sagittarii 2002 AND 0006-12 WW Cet request to monitor for RXTE observations weo 44 weeks 1 day ago Page
Alert Notice 430: Photometry requested of Blazar-type Quasars 3C 273 and 3C 279 weo 28 weeks 3 days ago Page
Alert Notice 192: Outburst of IP Peg AND Request for observations of HT Cas, UX UMa, and IP Peg AND Outburst of UZ Boo continues AND Outburst of SS Cyg weo 44 weeks 1 day ago Page
Alert Notice 415: Recurrent Nova U Scorpii in outburst weo 1 year 15 weeks ago Page
Alert Notice 330: Nova LMC 2005 - Nova in the Large Magellanic Cloud weo 1 year 1 week ago Page
Alert Notice 240: 1747-30 Nova Scorpii 1997 [V1141 Sco] weo 44 weeks 1 day ago Page
Alert Notice 263: 0436-03 Supernova 1999em in NGC 1637 weo 44 weeks 1 day ago Page
AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484