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  AAVSO Special Notice

v838mon
Light Echoes from V838 Mon
Credit: NASA and the Hubble Heritage Team (AURA/STScI)
The AAVSO Special Notice (ASN) will include announcements on interesting and/or rare stellar activity that do not involve new coordinated campaigns. The goal is for the ASN to be quick and brief. Should the announcement warrant further attention, it may be followed by an Alert Notice.

Sign up for a subscription to the Special Notice today.

For a description of the different AAVSO publications and alerts please read the announcement issued on November 21, 2005.

Special Notice Archives

2-9-10#194 Request for monitoring of the blazar 3C 66A
2-8-10#193 Request for photometry of the recurrent nova U Scorpii
2-3-10#192 Update on the epsilon Aurigae eclipse
1-28-10#191 U Sco is possibly in outburst
1-24-10#190 Probable Nova in Sagittarius
1-20-10#189 Request for observations of KT Eri / Nova Eri 2009
1-17-10#188 Possible Nova in Oph; update
1-17-10#187 Possible Nova in Oph
1-4-10#186 Request for observations of high-mass X-ray binaries
12-29-09#185 Request for twilight observations of U Sco
12-14-09#184 Possible nova in Aquila - N Aql 2009
11-29-09#183 Update on Nova Eri 2009
11-26-09#182 More on the variable in Eridanus
11-25-09#181 Possible Nova in Eridanus
11-23-09#180 Request for observations of V420 Aur in support of Spitzer Space Telescope observations
11-16-09#179 Request for observations of TT Ari in support of GALEX observations
11-16-09#178 Request for observations of NSV 99 (khi Peg)
11-12-09#177 Observing Campaign on the Secondary Eclipse of zeta Aurigae
11-9-09#176 Possible Nova in Scutum
11-8-09#175 Request for observations of high-mass X-ray binaries
10-30-09#174 Possible outburst of V1108 Her
10-26-09#173 NOVA SGR 2009 No. 4
10-20-09#172 Observing campaign on TT Ari
10-16-09#171 Request for twilight observations of U Sco
10-12-09#170 Possible outburst of the dwarf nova EG Cnc
9-30-09#169 Possible outburst of the dwarf nova BC UMa
9-25-09#168 Outburst of the symbiotic star Z Andromedae
9-14-09#167 Possible outburst of the suspected UGWZ star VX For
8-17-09#166 Possible Nova in Ophiuchus
8-17-09#165 Dwarf nova-like outburst of the old nova X Ser
8-7-09#164 Possible Nova in Sagittarius
7-29-09#163 Request for observations of high-mass X-ray binaries
7-21-09#162 Photometry of Beta Cephei
7-8-09#161 Outburst of the dwarf nova WX Cet
5-26-09#160 Request for observations of Z Cam
5-18-09#159 Request for observations of high-mass X-ray binaries
5-13-09#158 Update to Special Notice 157 -- possible nova in Centaurus
5-13-09#157 Possible Nova in Centaurus
5-9-09#156 Update on possible Nova in LMC from Special Notice #154 (revision of Special Notice #155)
5-8-09#155 Update on possible Nova in LMC from Special Notice #154
5-7-09#154 Possible nova in the Large Magellanic Cloud
4-27-09#153 Outbursting system in Libra
4-6-09#152 Increased activity in the symbiotic star AX Persei
4-3-09#151 Monitoring of the neutron star binary SDSS J102347.68+003841.2
4-3-09#150 Request for observations of N LMC 09
3-26-09#149 Outburst of the suspected eclipsing polar CSS 081231:071126+440405
2-26-09#148 Long-term monitoring of the suspected white dwarf binary V1412 Aql
2-19-09#147 Activity in the unusual cataclysmic variable V630 Cas
2-4-09#146 Request to monitor the candidate high-mass X-ray binary BG Gem
1-28-09#145 R Coronae Borealis at or near faintest recorded minimum
1-26-09#144 Superoutburst of the dwarf nova QZ Vir
1-10-09#143 Request extended to observe High-Mass X-Ray Binaries (HMXBs) in support of radial velocity observations
1-3-09#142 The new eclipsing cataclysmic variable CSS 081231:071126+440405
1-1-09#141 Request for deep observations (in twilight) of U Sco
12-29-08#140 Outburst of the cataclysmic variable IQ Eri
12-12-08#139 The peculiar object CSS 081007:030559+054715
12-2-08#138 Probable Nova in Sagittarius
12-2-08#137 Possible outburst of LV Vel
11-29-08#136 Possible Nova in Car
11-28-08#135 Correction to Special Notice #134 and new sequence
11-28-08#134 Possible Bright Nova in Car
11-25-08#133 Apparent Superoutburst of XZ Eri
11-17-08#132 Update of Alert Notice 389: Spectroscopic observations of VY Scl
11-7-08#131 Long-term photometric campaign on the luminous blue variable P Cygni
10-28-08#130 Outburst of the dwarf nova UW Tri
10-27-08#129 Request extended to observe High-Mass X-Ray Binaries (HMXBs) in support of radial velocity observations
10-19-08#128 Rare outburst of the dwarf nova V1251 Cyg
10-15-08#127 Twilight observations of U Sco requested
10-2-08#126 Possible Nova in Musca
9-22-08#125 Enhanced monitoring of GK Persei
9-3-08#124 Possible nova in Scorpius
9-3-08#123 Possible nova in Centaurus
9-2-08#122 Possible new WZ Sge-type dwarf nova in Andromeda
8-31-08#121 Outburst of the symbiotic star CI Cygni
8-25-08#120 SGR 0501+4516
8-19-08#119 Possible rebrightening in the dwarf nova HO Del
8-14-08#118 Request extended to observe High-Mass X-Ray Binaries (HMXBs) in support of radial velocity observations
8-4-08#117 Superoutburst of the infrequently outbursting dwarf nova HO Del (revised)
8-4-08#116 Superoutburst of the infrequently outbursting dwarf nova HO Del
7-31-08#115 Request for observations of Eta Carinae
7-22-08#114 Rebrightening of the dwarf nova VY Aqr
7-18-08#113 Request for observations of SDSS J212531.92-010745.9
6-7-08#112 Support for CH Cygni observations with HST and Chandra
6-4-08#111 Possible superoutburst of DH Aql
5-16-08#110 Update on optical transient in NGC 300
5-16-08#109 Optical transient in NGC 300
5-8-08#108 Sequence available for V5579 Sgr
5-1-08#107 Update on Request to monitor SDSS J151413.72+454911.9 for HST Observations
4-23-08#106 Nova Sgr 2008 brightening
4-19-08#105 Possible Nova in Sgr
4-17-08#104 Photometric Sequence for V2491 Cyg now Available
4-11-08#103 V2491 CYGNI (NOVA IN CYGNUS)
4-4-08#102 Possible Nova in Triangulum Australe
3-28-08#101 Supernova 2008bk in NGC 7793
3-27-08#100 EF Eri in Outburst
3-10-08#99 Campaign in support of SS Aurigae observations by XMM-Newton delayed
3-8-08#98 Apparent Nova in Cygnus - N Cyg 08
2-14-08#97 Outburst of the WZ-type dwarf nova HV Vir
2-7-08#96 VSX J074727.6+065050 rebrightening
2-5-08#95 SN 2008Q in NGC 524
1-22-08#94 Possible CV in Hya
1-21-08#93 Possible major outburst in EX Lup
1-20-08#92 Optical Transient in Canis Minoris
1-14-08#91 BZ UMa Monitoring for Polarization Measurements
1-14-08#90 Update on Request to Monitor EF Eri for Hubble Space Telescope Observations
1-10-08#89 Rare Outburst of 0103+59 HT Cas
1-10-08#88 Update on New WZ Sge variable in Hya
1-5-08#87 New WZ Sge variable in Hya
12-30-07#86 Possible outburst of the symbiotic star Z Andromedae
12-26-07#85 Possible Nova in Vul
12-19-07#84 Optical transient (possible supernova) in The Antennae Galaxies
11-20-07#83 X-ray Transient/Nova = V598 Pup; Possible Nova in Ser
11-19-07#82 Update on possible X-ray transient/Nova
11-18-07#81 Possible Nova/X-ray Transient
11-15-07#80 Nova Puppis 2007 = V597 Pup (AAVSO 0812-33)
11-12-07#79 Update of Alert Notice 361: HST Observations of SDSS091908
11-3-07#78 SN 2007oc in NGC 7418A
10-30-07#77 Update on Alert Notice 353 -- blazar monitoring campaign
10-29-07#76 Support for HST observations of SDSS074545, update
10-22-07#75 Monitoring of TT Ari in support of MOST observations
10-17-07#74 Sequence available for SN 2007le
10-15-07#73 SN 2007le in NGC 7721
10-12-07#72 1RXS_J023238.8-371812 rapid fading
10-11-07#71 Next HST cataclysmic variable scheduled
10-3-07#70 Brightening of the symbiotic star AG Draconis
9-20-07#69 Update on AN 358 Mira monitoring campaign
9-13-07#68 PROBABLE SUPERNOVA IN NGC 5530
9-12-07#67 Special Notice #66 on V455 AND Corrected
9-12-07#66 HS 2331+3905 NAMED V455 AND
9-10-07#65 Support for HST Observations of PQ Andromedae
9-7-07#64 FN SGR and VZ SGR
9-4-07#63 outburst in HS 2331+3905
8-24-07#62 Update on Blazar Monitoring Campaign
8-22-07#61 N Vul 07 is now V458 Vul
8-20-07#60 upcoming primary eclipse of ASAS182612
8-19-07#59 Update on SN 2007gr
8-16-07#58 SN 2007gr in NGC 1058
8-14-07#57 Update on V5558 SGR and N VUL 07
8-9-07#56 N Vul 07
8-8-07#55 Possible Nova in Vul
8-6-07#54 Fading of 1544+28A R CrB
7-9-07#53 Update on V5558 Sgr
7-6-07#52 AM Her increasing in brightness
6-29-07#51 V5558 Sgr chart update
6-28-07#50 Second update on V5558 Sgr
6-17-07#49 Possible Nova in Nor
6-8-07#48 Update on V5558 Sgr
5-19-07#47 Increased Activity in P Cyg
5-8-07#46 GW Lib fading
4-24-07#45 1804-18 V5558 Sgr = Nova Sgr 2007
4-20-07#44 Possible Nova in Sagittarius
4-14-07#43 Possible Super Outburst of BZ UMa
4-12-07#42 Outburst of GW Lib
3-23-07#41 Chart Available for N Oph 07
3-21-07#40 Possible Nova in Oph
3-19-07#39 V2467 Cyg
3-19-07#38 V2467 Cyg
3-16-07#37 Possible Nova in Cygnus
3-8-07#36 Variable Star in Triangulum Australe (1612-60 VAR TRA 07)
2-24-07#35 Eclipse of HD74057
2-21-07#34 Another Nova in Sco - Nova Sco 2007 #2
2-7-07#33 V1280 Scorpii = Nova Scorpii 2007
1-24-07#32 Possible Nova in Centaurus
1-19-07#31 Corrected text of AAVSO Special Notice #29 - Observations requested of 2001+32 V550 Cyg
1-18-07#30 Correction to AAVSO Special Notice #29
1-18-07#29 Observations requested of 2001+32 V550 Cyg
1-11-07#28 Object in Special Notice #27 False Alarm
1-10-07#27 Possible New Object in Sco/Oph Needs Confirmation
12-15-06#26 Possible Minor Outburst of 0324+43 GK Persei
11-20-06#25 Variable Star in Leo - 1016+24 VAR LEO 06
11-8-06#24 Outburst of EG Aqr
11-6-06#23"0802-27 Supernova 2006mq in ESO 494-G26 (Puppis)"
10-31-06#22 Bright New Variable in Cassiopeia
10-26-06#21 Possible New Object In Tau
10-11-06#20 Possible Supernova in UGC 4904 (Lynx)
10-7-06#19 Confirmation Needed of Possible VY Aqr Outburst
9-14-06#18 Rare Outburst of 0829+53 SW UMa
8-24-06#17 Supernova 2006ej in NGC 191A (Cetus)
7-19-06#16 Possible AG Dra Brightening
7-14-06#15 V1316 Cyg Monitoring Campaign
6-22-06#14 BZ UMa Outburst
6-20-06#13 Supernova 2006dd in NGC 1316 (Fornax)
5-11-06#12 0218-21 Supernova 2006ce (Cetus)
4-7-06#11 Possible New Object in Ophiuchi
4-4-06#10 Possible Nova in Cyg
3-30-06#9 V1343 Aql (SS433) Suzaku Observing Campaign Support
2-22-06#8 GRB060218
2-18-06#7 Possible Nova in Sgr
2-13-06#6 Rare Outburst of RS Oph
2-10-06#5 Possible New Object In Oph
2-6-06#4 Outburst of 1137+72 DO Dra
1-27-06#3 Possible New Nova/Dwarf Nova In Hya
1-21-06#2 Possible New Nova/Dwarf Nova in Cet
12-8-05#1 Exoplanet Transit Campaign For Southern Hemisphere
 
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