GZ Cet observations crucial now

[PTS]

AAVSO Special Notice #370

GZ Cet observations crucial now
September 11, 2013

HST/COS is scheduled to observe the WZ Sge-like SU UMa variable
GZ Cet (SDSS J013701.06-091234.9) the day after tomorrow.
Observations are scheduled for:

GZ Cet 2013 Sep. 13 12:24:02 through 19:06:54 UT

The scheduling team will likely make their final decision early
TOMORROW (September 12), so your observations are essential NOW.

Please monitor GZ Cet through September 14. GZ Cet is magnitude
19.32 V at minimum and may be as bright as 12.264 V at maximum,
according to observations in the AAVSO International Database.

After GZ Cet, the next target is the SU UMa-type variable BB Ari:

BB Ari week of 2013 September 23-30 (to be revised)

Giving top priority to GZ Cet, please observe BB Ari closely
through the end of September. AAVSO observations show BB Ari can
be as faint as magnitude 19.898 V at minimum and may be as bright
as 13.576 V at maximum.

Coordinates (2000.0):
GZ Cet R.A. 01 37 01.05 Dec. -09 12 34.2
BB Ari R.A. 02 44 57.71 Dec. +27 31 09.3

Charts may be created using the AAVSO Variable Star Plotter
(http://www.aavso.org/vsp).

Please report observations as soon as possible to the AAVSO
International Database using the name GZ CET (the primary VSX
name) and BB ARI, respectively. If an outburst is detected,
please report observations immediately. Many thanks!

Details of the HST/COS CV campaign and specific observing
instructions may be found in AAVSO Alert Notice 471
(http://www.aavso.org/aavso-alert-notice-471). Related AAVSO
Special Notices may be found via the Observing Campaigns page
(http://www.aavso.org/observing-campaigns). AAVSO Special Notice
#369 (http://www.aavso.org/aavso-special-notice-369) is the most
recent one that pertains to the campaign.


This AAVSO Special Notice was compiled by Elizabeth O. Waagen.

---------------------------------------------------
SUBMIT OBSERVATIONS TO THE AAVSO

Information on submitting observations to the AAVSO may be found at:
http://www.aavso.org/webobs

SPECIAL NOTICE ARCHIVE AND SUBSCRIPTION INFORMATION

A Special Notice archive is available at the following URL:
http://www.aavso.org/special-notice-archive/

Subscribing and Unsubscribing may be done at the following URL:
http://www.aavso.org/observation-notifi ... ialnotices

-----------------------------------------------
Please support the AAVSO and its mission --
Join or donate today: http://www.aavso.org/apps/donate