News and Announcements
|19 January||Alert Notice 535: R Aqr observing campaign||
January 19, 2016: Dr. George Wallerstein (University of Washington) has requested AAVSO coverage of the long period/symbiotic variable R Aquarii beginning immediately in support of high resolution spectroscopic observations planned for 2016 January 19 and 21.
|13 January||Solar Bulletin - Volume 71, Number 12||The December Solar Bulletin is now available. Please visit the Solar Bulletin web page to download your copy: http://www.aavso.org/solar-bulletin The December SID Data report is available here: www.aavso.org/sid-database|
|11 January||VStar 2.16.10 has just been released||
VStar 2.16.10 has just been released. You can read more about it and what changes were made in the VStar forum:
|30 December||CCD Photometry Guide in Greek||
Thanks to another great volunteer effort by Stelios Kleidis, we now have available a full Greek translation of the AAVSO Guide to CCD Photometry! If you know of anyone who would benefit from this translation, please feel free to spread the word and share the link.
If you would like to volunteer your time to translate this Guide into your native language, please contact Sara Beck (sara (at) aavso.org).
|21 December||Printed version of JAAVSO v. 43 n. 2 is now available||
The printed version of this issue is now available from createspace.com: https://www.createspace.com/5941875
For information on purchasing earlier issues of JAAVSO, please visit our online store: http://www.aavso.org/order-printed-jaavso
|16 December||Solar Bulletin - Volume 71, Number 11||
The November Solar Bulletin is now available. Please visit the Solar Bulletin web page to download your copy:
The November SID Data report is available here: www.aavso.org/sid-database
|15 December||Special Notice #411: RT Cru observations need to be continued||
December 15, 2015: Further to AAVSO Alert Notice 503 and AAVSO Special Notice #409, Dr. Margarita Karovska (Harvard-Smithsonian Center for Astrophysics) urgently requests that multicolor and visual AAVSO observations of the symbiotic variable RT Cru continue.
|15 December||JAAVSO Volume 43, Number 2 is published||
The printed version of this issue will be available soon. Please watch for the announcement on our main web page.
The Journal of the American Association of Variable Star Observers
Table of Contents
|01 December||Date change for the 2016 AAVSO Spring Meeting||
The date of the next Spring Meeting, which will be held at the Crowne Plaza in downtown St. Louis, Missouri has been changed to:
May 5-7, 2016
We hope to see you there!
|18 November||AAVSO HQ Job Position: Astronomer||
AAVSO Astronomer position
|18 November||AAVSO HQ Job Position: Operations Manager||
AAVSO Operations Manager
|18 November||Solar Bulletin - Volume 71, Number 10||
The October Solar Bulletin is now available. Please visit the Solar Bulletin web page to download your copy:
The October SID Data report is available here: www.aavso.org/sid-database
|17 November||IYL Youth Contest Winners!||
WINNER - Video Category:
A Holiday Tour to the Planet Saturn - created by Jashleen Kaur and Low Mun Shuen from Singapore.
WINNER - Essay Category:
|06 November||Charts and Sequences Update November 2015||
The charts and sequences team has been busy over the last several months creating new and updating existing variable star charts and sequences. The following is a list of updates made since 27 June, 2015. If you observe any of these objects please update your charts and photometry tables with the most recent version as soon as possible.
|04 November||Special Notice 410: Upcoming HST observations of V5668 Sgr||
Note: this text is slightly different than the emailed version. No technical information was changed.
|03 November||Alert Notice 534: Nova Sgr 2015 No. 4 = PNV J18225925-1914148||
November 3, 2015
Event: Nova Sgr 2015 No. 4 = PNV J18225925-1914148
Independent discovery by:
|30 October||Special Notice #409: Chandra observations scheduled for RT Cru||
October 30, 2015: Further to AAVSO Alert Notice 503, Dr. Margarita Karovska (Harvard-Smithsonian Center for Astrophysics) informs us that the Chandra observations of the symbiotic variable RT Cru have been scheduled.
|30 October||Alert Notice 533: Coverage of V5668 Sgr (Nova Sgr 2015 No. 2) requested in support of HST spectroscopy||
October 30, 2015: Dr. Peter Kuin (Mullard Space Science Laboratory, University College London) and colleagues in the Swift Nova group have requested AAVSO observers' assistance in multicolor monitoring of V5668 Sgr (Nova Sgr 2015 No. 2, see AAVSO Alert Notices 512, 519) in support of an upcoming spectroscopic observation with the Hubble Space Telescope Imaging Spectrograph (STIS).
|30 October||The AAVSO DSLR Observing Manual in Greek||
A Greek translation of The AAVSO DSLR Observing Manual is now available for download.
Many thanks to Mr. Stelios Kleidis for his tremendous volunteer effort in creating this excellent translation.
|23 October||AAVSO Newsletter 66, October 2015, is published||
AAVSO Newsletter 66, October 2015 is now available to members
The AAVSO Newsletter is a periodic, general forum that supports our various observing programs with lists of new targets, observing programming ideas, and general information that spans a wide area of interest. Guest writers contribute pieces that can range from current events to book reviews.
|20 October||Alert Notice 532: Observations requested for KIC 8462852||
October 20, 2015: The AAVSO requests time-series observations of the enigmatic variable object KIC 8462852 beginning immediately and continuing through at least the end of the current observing season. The star is relatively bright (V=11.88) and shows aperiodic dips of a few tenths of a magnitude, the causes of which are unknown. The object is not known to be a close binary or a young stellar object, and there are no other typical indicators of circumstellar material such as infrared emission.
|19 October||Annual Meeting early registration ends Friday October 23!||
The planets are gathering on Friday, October 23rd to remind you that early registration for the AAVSO Annual meeting gathering in November ENDS the same day!
Also, if you are planning to give a talk or present a poster, please send your abstracts by Friday as well.
Everything you need to know about the meeting being held November 12-14 as well as registration and abstract submission forms can be found on this page:
|15 October||Visual Observing Manual in Greek||
Thanks to the hard work of volunteer Stelios Kleidis, the Manual for Visual Observing of Variable Stars is now available in Greek!
You can download individual chapters or the entire Manual here.
If you know of anyone who may benefit from this translation, please spread the word!
|15 October||Solar Bulletin - Volume 71, Number 09||
The September Solar Bulletin is now available. Please visit the Solar Bulletin web page to download your copy:
The September SID Data report is available here: www.aavso.org/sid-database
|14 October||Alert Notice 531: Nova Ophiuchi 2015 Number 2 = TCP J17344775-2409042||
October 14, 2015
Event: Nova Oph 2015 No. 2 = TCP J17344775-2409042
Independent discovery by: