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GDS_J1701281-430612 HST observations scheduled

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發表於 2016-10-1 06:35:01 | 顯示全部樓層 |閱讀模式
[size=13.3333px]AAVSO Special Notice #422

[size=13.3333px]September 30, 2016

[size=13.3333px]GDS_J1701281-430612 HST observations scheduled


[size=13.3333px]Further to AAVSO Alert Notice 551
[size=13.3333px]([size=13.3333px]https://www.aavso.org/aavso-alert-notice-551[size=13.3333px]), Dr. Mark Reynolds
[size=13.3333px](University of Michigan) informs us that the cataclysmic variable
[size=13.3333px]GDS_J1701281-430612 will be observed by the HST/COS on

[size=13.3333px]07 Oct 2016 at 00:23:57 UT

[size=13.3333px]Quoting from the Alert Notice: "Beginning now and continuing
[size=13.3333px]through late October, V, R, and I photometry of
[size=13.3333px]GDS_J1701281-430612 is requested; the extinction in blue makes B
[size=13.3333px]photometry less valuable and is not recommended. Until October 1,
[size=13.3333px]nightly snapshots in VRI are requested to establish a baseline
[size=13.3333px]and follow   the target's behavior. From October 1, observations
[size=13.3333px]a few times per night are requested, then more frequently during
[size=13.3333px]the HST observations themselves at a cadence that allows for a
[size=13.3333px]good S/N. Following the HST observations, nightly snapshots are
[size=13.3333px]requested for about two weeks to provide context."

[size=13.3333px]Please see the Alert Notice for additional details on this campaign.

[size=13.3333px]Coordinates (2000.0):  R.A. 17 01 28.14  Dec. -43 06 12.3

[size=13.3333px]Charts with a comparison star sequence for GDS_J1701281-430612 may
[size=13.3333px]be created using the AAVSO Variable Star Plotter (VSP). Be sure to
[size=13.3333px]include the underscore in the name. Observers should create an 'e'
[size=13.3333px]scale chart to see the sequence.

[size=13.3333px]Please submit observations to the AAVSO International Database
[size=13.3333px]using the name GDS_J1701281-430612 exactly as written here.


[size=13.3333px]This AAVSO Special Notice was compiled by Elizabeth O. Waagen.

[size=13.3333px]----------------------------------
[size=13.3333px]SUBMIT OBSERVATIONS TO THE AAVSO

[size=13.3333px]Information on submitting observations to the AAVSO may be found at:
[size=13.3333px]https://www.aavso.org/webobs

[size=13.3333px]SPECIAL NOTICE ARCHIVE AND SUBSCRIPTION INFORMATION

[size=13.3333px]A Special Notice archive is available at the following URL:
[size=13.3333px]https://www.aavso.org/special-notice-archive

[size=13.3333px]Subscribing and Unsubscribing may be done at the following URL:
[size=13.3333px]https://www.aavso.org/observation-notification#specialnotices

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