Skip to main content

AAVSO International Database

Title Posted By Updated/commented date Typesort icon
Alert Notice 471: Cataclysmic variables to be monitored for HST observations weo 1 year 21 weeks ago Page
Alert Notice 222: Extreme fading of 1921+50 CH Cygni AND Reminder - Request to monitor 2138+43 SS Cygni for Observations with HST, EUVE, and RXTE weo 26 weeks 6 days ago Page
Alert Notice 349: Outburst of GW Lib weo 36 weeks 6 days ago Page
Special Notice #356: V1108 Her obs urgent TONIGHT and new date for BD Pav weo 1 year 6 weeks ago Page
Alert Notice 147: Probable nova in Sagittarius AND Special multiwavelength monitoring of 0201+14 TT Arietis weo 36 weeks 9 hours ago Page
Filters weo 2 years 22 weeks ago Page
Alert Notice 253: Special and unique optical monitoring request - 1522+45 GRB 990123 - gamma-ray burster event with bright optical counterpart weo 26 weeks 6 days ago Page
Alert Notice 206: Rare outburst of 1227+14 AL Comae Berenices weo 26 weeks 6 days ago Page
Special Notice #317: HST COS observing HS 0218+3229 2012 December 22 and SDSS J093249.57+472523.0 is probable next target weo 1 year 30 weeks ago Page
Alert Notice 333: Possible New Dwarf Nova in Cet (ASAS023322) weo 36 weeks 5 days ago Page
Alert Notice 412: Nova Sct 2009 (V496 Sct) weo 50 weeks 15 hours ago Page
Digitization of AAVSO data published in the Harvard Annals Matthew Templeton 3 years 43 weeks ago Page
Alert Notice 262: 1415-68 Nova Circini 1999 AND Fading of 1544+28A R Coronae Borealis AND Update on two recent novae (V1493 Aql, V382 Vel) and AM Herculis [DD Cir] weo 26 weeks 6 days ago Page
Special Notice #274: Variable Object in Centaurus = TCP J14250600-5845360 weo 2 years 15 weeks ago Page
Alert Notice 288: 1818-30B Nova Sagittarii 2001 No. 2 AND 0329-36B Supernova 2001du in NGC 1365 in Fornax AND 2059+48 Nova Cygni 2001 No. 2 = V2275 Cygni AND 2003+17 WZ Sagittae superoutburst update - dramatic fluctuations continue [V4739 Sgr] weo 26 weeks 6 days ago Page
Alert Notice 494: T Tauri stars observing campaign weo 26 weeks 6 days ago Page
Special Notice #327: HST/COS observations scheduled for U Gem weo 1 year 25 weeks ago Page
Alert Notice 321: Multicolor CCD campaign for AS 325 to support Spitzer observations weo 36 weeks 4 days ago Page
Special Notice #372: Probable new red variable IRAS 17378-3411 = PNV J17411305-3413235 weo 41 weeks 6 days ago Page
AAVSO Special Notice #228 weo 3 years 26 weeks ago Page
Special Notice #286: Revised Timetable for June AE Aqr MAGIC Observations weo 2 years 6 weeks ago Page
Alert Notice 242: Superoutburst of 2110+13 EF Pegasi AND Request to monitor 0749+22 U Geminorum for observations with EUVE and RXTE weo 26 weeks 6 days ago Page
Alert Notice 367: Monitoring of the Recurrent Nova U Scorpii weo 37 weeks 16 hours ago Page
Special Notice #380: Reported outburst of the recurrent nova V0745 Sco weo 23 weeks 5 days ago Page
Special Notice #341: V485 Cen observations crucial tonight through Sunday night weo 1 year 18 weeks ago Page
Alert Notice 307: 1706-30 Nova Scorpii 2004 weo 36 weeks 16 hours ago Page
Alert Notice 394: Nova in the Large Magellanic Cloud weo 37 weeks 5 days ago Page
Alert Notice 442: Nova Scorpii 2011 = PNV J16551100-3838120 weo 11 weeks 1 day ago Page
Special Notice #294: CH Cyg observing campaign continued through 2012 weo 1 year 27 weeks ago Page
Alert Notice 225: 0241-08 Supernova 1996an in NGC 1084 AND 0207-63 WX Hydri to be observed with Hubble Space Telescope weo 26 weeks 6 days ago Page
Alert Notice 352: V390 Nor = Nova Normae 2007 weo 37 weeks 10 hours ago Page
Special Notice #354: DT Oct obs crucial now, GW Lib and V1108 Her next targets weo 1 year 8 weeks ago Page
Alert Notice 144: Supernova 1991X in NGC 4902 AND Monitoring of 1910-33 RY Sagittarii weo 36 weeks 10 hours ago Page
Special Notice #262: Long-term monitoring of AGN targets extended weo 2 years 37 weeks ago Page
Alert Notce 275: 0755+67 Supernova 2000ce in UGC 4195 in Camelopardalis weo 26 weeks 6 days ago Page
Alert Notice 209: Outburst of 2325+43 DX Andromedae AND Outburst of 2318+17 EP Pegasi AND New variable in Crux - 1250-60 Var Cru AND Reminders to monitor 0409-71 VW Hydri and 2138+43 SS Cygni [NSV 19555] weo 26 weeks 6 days ago Page
Special Notice #314: HST COS scheduled to observe V405 Peg December 7 weo 1 year 32 weeks ago Page
Alert Notice 336: CCD campaign to observe 1059+23 AH Leo weo 36 weeks 5 days ago Page
Special Notice #368: Bright transient in M74 - PSN J01364816+1545310 weo 51 weeks 4 days ago Page
Alert Notice 290: Supernova 2001el in NGC 1448 (Horologium) AND Request to monitor cataclysmic variables for XMM-Newton observations weo 26 weeks 6 days ago Page
AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484