The American Association of Variable Star Observers (AAVSO)

FEATURED IMAGE: 23 May 2013, 14:00 UTC | Photo Release: Most detailed observations ever of the Ring Nebula 25 May 2013, 8:43:37UTC

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Home » News & Blogs » Blogs Directory » The American Association of Variable Star Observers (AAVSO)

The American Association of Variable Star Observers (AAVSO)

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Added on 21 Aug 2009, 15:09 UTC, last updated on 23 May 2013, 20:10 UTC

Latest Posts

23 May 2013, 19:59 UTC New eJAAVSO preprint: Intermediate Report on January 2013 Campaign: Photometry and Spectrosc...
23 May 2013, 17:42 UTC AAVSO observers help solve a mystery about an important variable star
23 May 2013, 15:00 UTC New eJAAVSO preprint: Period Analysis of AAVSO Visual Observations of Semiregular (SR) Varia...
23 May 2013, 13:19 UTC New eJAAVSO preprint: Recent Maxima of 61 Short Period Pulsating Stars
22 May 2013, 21:13 UTC Special Notice #354: DT Oct obs crucial now, GW Lib and V1108 Her next targets
22 May 2013, 18:25 UTC Two new eJAAVSO preprints: Simultaneous CCD Photometry of Two Eclipsing Binary Stars in Pega...
17 May 2013, 20:24 UTC Alert Notice 483: AH Her Observing Campaign
16 May 2013, 20:02 UTC Events from the AAVSO Spring Meeting Broadcast Online!
16 May 2013, 18:33 UTC Solar Bulletin - Volume 69, Number 4
16 May 2013, 13:48 UTC Kepler planet-finding mission may be ending
14 May 2013, 18:05 UTC Two new eJAAVSO preprints
13 May 2013, 14:35 UTC Special Notice #353: SDSS J153817.35+512338.0 obs crucial now and DT Oct is next
9 May 2013, 15:00 UTC AAVSO Councilor Dr. Chryssa Kouveliotou elected to National Academy of Sciences
9 May 2013, 01:21 UTC Special Notice #352: Correction to target name in Special Notice #351
9 May 2013, 01:09 UTC AAVSO Special Notice #351: 1RXS J105010.3-140431 obs crucial now and upcoming targets
6 May 2013, 20:50 UTC Second Annual AAVSO CCD School
6 May 2013, 15:24 UTC Three new JAAVSO preprints
30 Apr 2013, 21:06 UTC Special Notice #350: 1RXS J105010.3-140431 and SDSS J153817.35+512338.0 next HST/COS targets
30 Apr 2013, 20:08 UTC Special Notice #349: HST/COS Observations CANCELLED for SDSS J154453.60+255348.8
30 Apr 2013, 09:33 UTC New VStar Release
28 Apr 2013, 13:46 UTC Optical observations of GRB 130427A
22 Apr 2013, 13:07 UTC Special Notice #348: QZ Lib observations critical now for HST/COS and SDSS J154453.60+255348...
18 Apr 2013, 13:27 UTC Data Usage Guidelines
17 Apr 2013, 19:27 UTC Spring Meeting Hotel Deadline Extended!
17 Apr 2013, 16:42 UTC Solar Bulletin - Volume 69, Number 3
11 Apr 2013, 13:28 UTC The AAVSO Newsletter - April 2013 - is published
9 Apr 2013, 18:47 UTC Special Notice #347: Correction to AAVSO Special Notice #346
9 Apr 2013, 01:32 UTC Special Notice #346: RZ Leo observations critical now for HST/COS and IU Leo next target
5 Apr 2013, 13:28 UTC Annual Report for 2011-2012 is published
4 Apr 2013, 19:08 UTC Charts and Sequences Update April 2013
3 Apr 2013, 19:53 UTC Alert Notice 482: Monitoring requested for dust production study in developing planetary sys...
2 Apr 2013, 13:05 UTC Special Notice #345: MR UMa observations needed now and RZ Leo next HST/COS target
27 Mar 2013, 16:50 UTC AAVSO Solar Bulletin 1945-1953
25 Mar 2013, 17:58 UTC Special Notice #344: IY UMa and MR UMa next HST/COS targets
19 Mar 2013, 16:45 UTC Alert Notice 481: Nova Survey participation requested
18 Mar 2013, 23:10 UTC Special Notice #343: GK Per outburst appears to be underway
18 Mar 2013, 20:51 UTC Special Notice #342: PU CMa, then IY UMa and MR UMa next HST/COS targets
14 Mar 2013, 21:35 UTC Special Notice #341: V485 Cen observations crucial tonight through Sunday night
13 Mar 2013, 21:46 UTC Solar Bulletin - Volume 69, Number 2
12 Mar 2013, 14:16 UTC Manual for Visual Observing of Variable Stars - update
8 Mar 2013, 20:34 UTC Alert Notice #480: MR UMa superoutburst coverage requested for HST observations
6 Mar 2013, 18:43 UTC Special Notice #340: HST/COS observations 2013 March 8 and March 9
6 Mar 2013, 14:54 UTC New CHOICE Courses: Registration Now Open!
28 Feb 2013, 21:55 UTC Special Notice #339: V406 Vir (SDSS J123813.73-033932.9) HST/COS observations early tomorrow
27 Feb 2013, 19:40 UTC Bulletin 76 for 2013 published and available online
26 Feb 2013, 18:28 UTC ASP 125th Annual Meeting
21 Feb 2013, 21:37 UTC Special Notice #338: HM Leo HST/COS observations tomorrow; V406 Vir is next target
18 Feb 2013, 11:21 UTC Solar Bulletin - Volume 69, Number 1
17 Feb 2013, 22:28 UTC Alert Notice 479: Supernova 2013aa in NGC 5643 = PSN J14323388-4413278
17 Feb 2013, 05:57 UTC Aviso Especial de AAVSO #337 (actualizado): supernova brillante de tipo Ia en la galaxia NGC...

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