ASTRO: HFG1 and Abell6

HFG1 (Heckathorn-Fesen-Gull1) has been a surprisingly popular target
recently, but most images have it without Abell 6, which is in the same
field of view if focal length is short enough.
Actually I started imaging this duo in autumn 2014 with my Esprit 150ED
refractor but only got one night of usable data and the FOV was almost too
small. So I redid it in autumn 2015 with my Celestron RASA. This is much
more fun at f/2.2 than at f/7 ;-)

I needed four nights in October/November 2015 to gather the data and none of
them was really clear. Either nights were cut short by clouds or thin clouds
were present which were not visible to the naked eye but in the satellite
pictures (and which affected transparency). Actually I don't think that we
had a completely clear night since last October. And I even missed out on a
number of semi-clear nights because of lack of time.

Taken from Berlin with a RASA on a G11 mount, Trius SX694 camera, Baader
highspeed Ha and OIII filters, 194x3min Ha, 251x3min OIII.

Stefan

Both are exceedingly faint. Odd that Abell 6 looks a bit brighter in red than blue on the POSS plates yet all images of it I've seen show blue the stronger. Nights here are few and far between. Automated I can at least run when doing other things which helps but lots of the data I've been getting is very poor thanks to the weather.

Rick

Originally Posted by Stefan Lilge

HFG1 (Heckathorn-Fesen-Gull1) has been a surprisingly popular target
recently, but most images have it without Abell 6, which is in the same
field of view if focal length is short enough.
Actually I started imaging this duo in autumn 2014 with my Esprit 150ED
refractor but only got one night of usable data and the FOV was almost too
small. So I redid it in autumn 2015 with my Celestron RASA. This is much
more fun at f/2.2 than at f/7 ;-)

I needed four nights in October/November 2015 to gather the data and none of
them was really clear. Either nights were cut short by clouds or thin clouds
were present which were not visible to the naked eye but in the satellite
pictures (and which affected transparency). Actually I don't think that we
had a completely clear night since last October. And I even missed out on a
number of semi-clear nights because of lack of time.

Taken from Berlin with a RASA on a G11 mount, Trius SX694 camera, Baader
highspeed Ha and OIII filters, 194x3min Ha, 251x3min OIII.

Stefan