Special Notice #363: HS 2214+2845 (= V513 Peg) obs critical now
July 16, 2013: Based on your observations, the HST/COS team will be making the final decision tomorrow afternoon (2013 July 17) or the next morning whether to observe the dwarf nova HS 2214+2845 = V513 Peg on:
V513 Peg (HS 2214+2845) 2013 July 18 21:08:59 through July 19 01:04:23 UT
V513 Peg is 16.8V at minimum and 12.5V at maximum. Please monitor V513 Peg closely through July 19.
Following V513 Peg, the next HST/COS target is the WZ Sge-type variable 1RXS J213807.1+261958 (= OT J213806.6+261957). Observations are scheduled for:
1RXS J213807.1+261958 (OT J213806.6+261957)
2013 July 25 17:26:50 through 21:05:23 UT
According to observations in the AAVSO International Database, the most recent outburst of 1RXS J213807.1+261958 was in May 2010, when it reached visual magnitude 8.8, and it has been observed as faint as 20.993V (GFB, B. Goff, Sutter Creek, CA) and is currently <17.3V (S. Dvorak, Clermont, FL); the positive observations at ~15V are likely of a very close-by field star.
V513 Peg (HS 2214+2845) R.A. 22 16 31.19 Dec. +29 00 19.7
1RXS J213807.1+261958 (OT J213806.6+261957) R.A. 21 38 06.57 Dec. +26 19 57.3
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 names V513 Peg and 1RXS J213807.1+261958 (the primary VSX names), respectively. If an outburst is detected, please report observations immediately. Many thanks!
Details of the HST/COS CV campaign 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 #362 (http://www.aavso.org/aavso-special-notice-362) 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:
SPECIAL NOTICE ARCHIVE AND SUBSCRIPTION INFORMATION
A Special Notice archive is available at the following URL:
Subscribing and Unsubscribing may be done at the following URL:
Last Updated: July 16, 2013 - 5:35pm