Symbiotic stars: V694 Mon, AG Dra, T CrB, V443 Her
Posted: Sat Mar 21, 2015 6:55 pm
Yesterday caught a foggy night (between 2 and -5C), explored further LHires with 600/mm grating.
Lots to tune, star image suboptimal.
I was still pushing the buttons manually, solved remote calib fully only later today.
V694 Mon (within trees): Noticed later I forgot to refocus the LHires doublet (I was also curious how much it tolerates last setup), just got only R~2200 for V694mon.
Only 1 hour succeeded for now because of trees, older one is 5 x 20 minute.
After refocus got above R~3500 for the next upcoming objects (tweaked focus only once then).
Had good signal for AG Dra and TCrB.
AG Dra: T CrB: V443 Her: (Wanted to finish with BF Cyg but had a star loss error at V443 Her and decided to get a complete 1 hour as a minimum. I have no chance for the nova Sgr, unfortunately.)
Cheers,
Peter
Lots to tune, star image suboptimal.
I was still pushing the buttons manually, solved remote calib fully only later today.
V694 Mon (within trees): Noticed later I forgot to refocus the LHires doublet (I was also curious how much it tolerates last setup), just got only R~2200 for V694mon.
Only 1 hour succeeded for now because of trees, older one is 5 x 20 minute.
After refocus got above R~3500 for the next upcoming objects (tweaked focus only once then).
Had good signal for AG Dra and TCrB.
AG Dra: T CrB: V443 Her: (Wanted to finish with BF Cyg but had a star loss error at V443 Her and decided to get a complete 1 hour as a minimum. I have no chance for the nova Sgr, unfortunately.)
Cheers,
Peter