ASTRO: Starburst galaxy NGC 1569

This is a dwarf galaxy located about the same distance as M82 but much
smaller. At least it appears much smaller. I started this image last
winter but never got the Halpha data I wanted until this year. It's
been sitting on my hard drive all this time. I'd even forgotten about
it until Hubble imaged it and published their photo a couple weeks ago.
That got me back taking the H alpha I wanted but clouds moved in and
appear here to stay so I'm going with what little I got before they did
me in.

It is part of the Maffei group so heavily obscured by our galaxy's dust
and gas. Whether it is larger than it looks due to this dust curtain I
don't know. In any case its massive star formation is creating a lot
gas being thrown out of the galaxy but not before it is ionized by all
the hot O stars created in the starburst. Hubble's narrowband image
suppressed the stars while I just added H alpha to the LRGB image such
that it shows up only when brighter than the stars. I need to do a
blend that shows it somewhat in other areas as well but for that I need
a lot more time under the Halpha filter.

14" LX200R @ f/10, L=4x10' HA=2x30' RGB=2x10', STL-11000XM, Paramount ME

Rick
--
Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".

Interesting result Rick. The galaxy seems to have a "ring" of emission
regions around the core of the galaxy. Thanks for pointing out the Hubble
piture, I missed that one.

Stefan

"Rick Johnson" schrieb im Newsbeitrag
ster.com...
This is a dwarf galaxy located about the same distance as M82 but much
smaller. At least it appears much smaller. I started this image last
winter but never got the Halpha data I wanted until this year. It's
been sitting on my hard drive all this time. I'd even forgotten about
it until Hubble imaged it and published their photo a couple weeks ago.
That got me back taking the H alpha I wanted but clouds moved in and
appear here to stay so I'm going with what little I got before they did
me in.

It is part of the Maffei group so heavily obscured by our galaxy's dust
and gas. Whether it is larger than it looks due to this dust curtain I
don't know. In any case its massive star formation is creating a lot
gas being thrown out of the galaxy but not before it is ionized by all
the hot O stars created in the starburst. Hubble's narrowband image
suppressed the stars while I just added H alpha to the LRGB image such
that it shows up only when brighter than the stars. I need to do a
blend that shows it somewhat in other areas as well but for that I need
a lot more time under the Halpha filter.

14" LX200R @ f/10, L=4x10' HA=2x30' RGB=2x10', STL-11000XM, Paramount ME

Rick
--
Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".

that looks cool Rick

I like these starburst galaxies


"Rick Johnson" wrote in message
ster.com...
This is a dwarf galaxy located about the same distance as M82 but much
smaller. At least it appears much smaller. I started this image last
winter but never got the Halpha data I wanted until this year. It's
been sitting on my hard drive all this time. I'd even forgotten about
it until Hubble imaged it and published their photo a couple weeks ago.
That got me back taking the H alpha I wanted but clouds moved in and
appear here to stay so I'm going with what little I got before they did
me in.

It is part of the Maffei group so heavily obscured by our galaxy's dust
and gas. Whether it is larger than it looks due to this dust curtain I
don't know. In any case its massive star formation is creating a lot
gas being thrown out of the galaxy but not before it is ionized by all
the hot O stars created in the starburst. Hubble's narrowband image
suppressed the stars while I just added H alpha to the LRGB image such
that it shows up only when brighter than the stars. I need to do a
blend that shows it somewhat in other areas as well but for that I need
a lot more time under the Halpha filter.

14" LX200R @ f/10, L=4x10' HA=2x30' RGB=2x10', STL-11000XM, Paramount ME

Rick
--
Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".