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News and Announcements

08 February Alert Notice 536: SS Cyg monitoring requested for radio campaign

February 8, 2016:  Further to AAVSO Special Notice #412, Dr. James Miller-Jones (International Centre for Radio Astronomy Research, Curtin University, Perth, Western Australia) and colleagues have requested AAVSO assistance in support of their multiwavelength (radio and optical) campaign on the dwarf nova SS Cyg. Close monitoring of SS Cyg and immediate reporting of observations to the AAVSO via WebObs is requested beginning now.

04 February Special Notice #412: SS Cyg monitoring needed for radio campaign

February 4, 2016:  A multiwavelength (radio and optical) observing campaign on SS Cyg is underway, and AAVSO participation is urgently requested. An AAVSO Alert Notice will be issued February 5 with full details.

The purpose of this Special Notice is to alert observers right now to the need to monitor SS Cyg very closely and report your observations to the AAVSO via WebObs at once. It is likely to go into outburst very soon, and immediate reporting of outburst behavior is crucial to the success of the campaign.

04 February AAVSO Newsletter 67, January 2016, is published

AAVSO Newsletter 67, January 2016 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.

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:

https://www.aavso.org/vstar-21610-release

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

eJAAVSO

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:

www.aavso.org/solar-bulletin

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

eJAAVSO

http://www.aavso.org/apps/jaavso/volumes/

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
Volume 43, Number 2, 2015

Table of Contents

Editorial

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
Exempt position reporting to the AAVSO Director.

18 November AAVSO HQ Job Position: Operations Manager

AAVSO Operations Manager
Exempt position reporting to the AAVSO Director.

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:

http://www.aavso.org/solar-bulletin

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:  
 - Shigehisa Fujikawa (Kan'onji, Kagawa, Japan, reported via I. Endoh,
National Astronomical Observatory of Japan, Mitaka, Tokyo)
 - Hideo Nishimura (Kakegawa, Shizuoka-ken, Japan, reported via S.
Nakano (Sumoto, Japan))
 - Minoru Yamamoto (Okazaki, Aichi-ken, Japan, reported via S. Nakano)

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:

https://www.aavso.org/apps/meetings/Fall2015/

AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484