News and Announcements
|05 March||AAVSO Special Notice #236||
HST observations scheduled for SDSS074545
|04 March||Two new jaavso preprints...||
ej 139: Recent Maxima of 56 Short Period Pulsating Stars (G. Samolyk)
ej 138: The Z CamPaign: Year 1 (M. Simonsen)
|02 March||View your VPHOT data with VStar!||
A new version of VStar has just been released, and along with it, a plugin that will allow you to upload data to plot in the AAVSO Extended File Format. Which means... you can now view your data as output by VPHOT.
To download VStar or read more about it, please visit this page: http://www.aavso.org/vstar-overview
To read more about the VStar plugin mentioned above or download it or one of the other ones for your own use, see this page: http://www.aavso.org/vstar-plugin-library
|25 February||AAVSO Bulletin 74 for 2011||
Predicted Dates of Maxima and Minima of 381 Long Period Variables for 2011
|24 February||Alert Notice 431: Request to monitor SDSS074545 for HST Observations||
February 25, 2011: Dr. Paula Szkody (University of Washington) has requested our help in monitoring the cataclysmic variable SDSS074545 (SDSS J074531.91+453829.5) for upcoming Hubble Space Telescope observations. The HST observations are scheduled to be made during the week of 2011 March 7-14. Dr. Szkody also observed this object with HST in October-November 2007 (see AAVSO Alert Notice 359).
|23 February||Standard Stars in VSP||
The 2009 Landolt UBVRI Equatorial Standard Fields are being added to VSP. Descriptions of all the fields are included in the tables below. In order to plot them you need to enter the coordinates and size of the field you want.
|22 February||20 Million Observations||
On Feburary 19, 2011 the number of observations in the AAVSO International Database surpassed the 20 million mark. It is fitting that this milestone was achieved during our 100th anniversary. Below is some information about the achievement.
|15 February||VSP Improvements||
|15 February||AAVSO Special Notice #235||
Request for archival data: V1647 Ori and McNeil's Nebula
|14 February||AAVSO Special Notice #234||
Outburst of FS Aurigae
|10 February||100th Spring Meeting of the AAVSO||
A milestone anniversary and a joint meeting with the AAS!
May 21-26, 2011
|10 February||Database Errors Reported||
Some observers in the chat room are reporting that their observations submitted since November 11, 2010 are not showing up in our online tools. Doc and Matt will investigate this first thing in the morning (eastern) and update this page when they know more information. We apologize for this inconvenience.
|08 February||MyNewsFlash Subscription Form||
A new tool for adding, removing and updating your MyNewsFlash accounts is now online. You can visit it at this URL:
|07 February||AAVSO Special Notice #233||
Bright outburst of the cataclysmic variable SDSS J133941.11+484727.5
|05 February||AAVSO Special Notice #232||
Note: This Special Notice was originally issued as AAVSO Special Notice #231; #232 is the correct number.
|02 February||New Sequence for SN2011B||
There is now a sequence available for SN2011B.
You will need to specify the coordinates (I used 08 55 48.50 +78 13 02.7 from the discovery telegram) to plot a chart, or you can simply download this E scale DSS image chart and print it.
|02 February||AAVSO Special Notice #231||
T Pyx Observations Requested
|31 January||AAVSO Special Notice #230||
Nova Sagittarii 2011 = PNV J17474639-2335112
|28 January||Monday System Maintenance||
This Monday, 31 January 2011, at 12:00ET (17:00UTC) the AAVSO Website will be down for one hour to look into the installation of a Wide Area Network Router which, if successful, will combine the two internet feeds we have here at HQ into one which will allow us to seamlessly increase both our incomming and outgoing data rates.
Any questions or concerns can be sent to Doc Kinne at rkinne @ aavso.org.
|25 January||And Baby Makes...||
Our Assistant Director, Aaron Price, has had a heck of a year!
Early in 2010, he was made Assistant Director of the AAVSO. Later that year we celebrated his defending his Ph.D. But something more unusual, at least for an AAVSO staffer, was on the horizon.
It would seem to an outside observer, perhaps, that AAVSO staffers are more committed to their work than most. While most of us (but not all) are married, the vast majority of us have no children now. With the single exception of Gloria, those that do have children have grown children.
|24 January||AAVSO Special Notice #229||
Outburst of FS Aurigae
|23 January||A volunteer's valuable contribution||
We received some sad news at the AAVSO ten days ago regarding one of the participants in the AAVSO's project to digitize data from the Harvard Annals. Daniel Rupp wrote me to let me know that his son, Andrew Rupp, passed away on January 7, 2011. Along with this news, Mr. Rupp passed along the spreadsheets that Andrew had in progress. All told, Andrew digitized more than 2700 observations for 10 different Mira variables, extending our light curves for these stars backwards in time by nearly eleven years.
|14 January||Trivia Leaderboards Added|
|14 January||AAVSO Special Notice #228||
Supernova 2011K in anonymous galaxy is Type-Ia pre-maximum
|11 January||Alert Notice 430: Photometry requested of Blazar-type Quasars 3C 273 and 3C 279||
January 11, 2011: Dr. Kirill Sokolovsky (Max-Planck-Institut fuer Radioastronomie, Bonn) has requested the assistance of AAVSO observers to obtain optical photometry of the blazar-type quasars 3C 273 and 3C 279 during 2011. The observations obtained by AAVSO observers will be combined with multiwavelength observations - from radio to gamma-rays - as well as with very long baseline interferometry with the VLBA to obtain a better picture of what these objects are and how they vary.