I was observing last week (12/19/2019) and got a image of one of my favorite stars, T Tauri, and the reflection nebula-NGC 1555 or Hind's Nebula-which is illuminated by T Tauri. Also there appears to be a faint nebulosity on the edge of T Tauri, which may be HH255, or Burnham's Nebula. Also attached is a spectral profile of T Tauri that I got 12/27/2016 with a 10" f/4.7 Newtonian, SA-100 grating, Atik Infinity, and RSpec. The visual image was obtained with a !0" f/10 Meade SCT, Meade f/6.3 focal reducer, and an Atik Infinity monochrome camera with 40s exposure, stacked 10 times and used GIMP to brighten the nebulosity.
T Tauri is low-mass, 0.53 solar mass, pre-main sequence object that is in transition between being a star shrouded in dust (an IR source), produced by a strong stellar wind, and a main sequence star. There are strong emission lines-the Balmer lines can be seen in my spectral profile-and also Ca ll and Fe emission lines and lithium absorption lines are present-but not resolved in my spectrum. I have a Alpy 600 that I hope to use soon to get a spectrum of T Tauri with better resolution. The energy source for T-Tauri stars is, initially, gravitational energy released as the star contracts and as central pressures increase "lithium burning" by the Proton-Proton (P-P) chain begins. I'm not sure where T Tauri is in that sequence of gravitational to thermonuclear energy production. Again, T Tauri stars are some of my favorites-as are those on the other extreme of the main sequence,Wolfe-Rayet stars. Also I plan on examining Be stars with my Alpy. With a high resolution spectrograph, such as a Shelyak Lhires lll, one can resolve emission spectra on the stars and get meaningful data from observation of Be stars as the intensity of these emission lines change with time. O so much to be done and so little time, but onward and upward.