Hida DST Ha Observations on 29-30th April, 2004 (UT)

1. Observational summary.

   Start	End	X	Y	P	r(DST)	p(DST)	Vertical Spectrograph & Note
   23:09	01:08	847"	489"	301	16'18"	277deg22'	The prominence on the west limb. Spectra of H-alpha, beta, He D3, Ca2K, and Ca2H lines were obtained by locating the slit at the selected two positions on the prominence. Extra-long exposure time was employed for the spectral observations in order to diagnose the physical state of the very faint structures including the prominence-corona transition region.

2. The target regions

   H-alpha full disk images (6562.81A) showing the target regions.
   Both images were obtained with the Flare Monitoring Telescope (FMT).

3. Click the links below to access the mpeg files.