AAVSO Special Notice #325
BB Dor monitoring requested for Swift and HST observations January 21, 2013
AAVSO observations are requested of the SW Sex-type novalike variable BB Dor in support of one and possibly two sets of multiwavelength observations: Dr. Tomohito Ohshima (Department of Astronomy, Kyoto University) and colleagues have triggered Target of Opportunity observations with NASA's Swift gamma-ray burst satellite, and Dr. Boris Gaensicke (Warwick University) is hoping to observe BB Dor in the ultraviolet with HST.
BB Dor is currently very faint now (<18V), according to observations reported to the AAVSO International Database and elsewhere, which makes it a good time to carry out studies of the white dwarf in the system. Dr. Ohshima and colleagues plan to observe BB Dor on January 23; Dr. Gaensicke's schedule is not set but he has requested good coverage of this low state to help in understanding this system (AAVSO Special Notice #323 http://www.aavso.org/aavso-special-notice-323).
BB Dor is very faint in this low state, so visual observations are not feasible. Photometry is requested from now through the end of the observing season.
Coordinates for BB Dor: 05 29 28.64 -58 54 46.6 (2000.0)
Charts may be created using the AAVSO Variable Star Plotter (http://www.aavso.org/vsp).
Please report observations to the AAVSO International Database as BB DOR.
This AAVSO Special Notice was compiled by Elizabeth O. Waagen.
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BB Dor monitoring requested for Swift and HST observations
Exoplanet occultation, asteroid occultation,
solar research, comet observation, astrometry, etc.
solar research, comet observation, astrometry, etc.
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