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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

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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