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0 |
866 |
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ASTRO: M81 by
Stefan Lilge
On January 21 I chose M81 as a target as transparency wasn't good, so it
would have made little sense to go for exotic stuff.
There were gusty winds that...
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3 |
3,440 |
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ASTRO: Arp 289 and its mystery plumes by
Rick Johnson[_2_]
Arp 289/NGC 3981 is a spiral galaxy in far eastern Crater just barely in
Crater rather than Corvus. At almost 20 degrees south it is the most
southern Arp...
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4 |
1,399 |
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2 |
2,268 |
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ASTRO: Arp 245 with wild plume by
Rick Johnson[_2_]
Arp 245/NGC 2992-3 is a great pair of interacting galaxies in Hydra.
Red shift puts them at about 125 million light-years but most papers are
going with the...
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2 |
1,282 |
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0 |
483 |
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ASTRO: Arp 140 by
Rick Johnson[_2_]
I thought I'd posted this one long ago. It was taken September 19, 2009
UT. I processed it in April but apparently then forgot about it. I
can't find I...
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0 |
1,059 |
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ASTRO: M108/M97 field by
Stefan Lilge
This field is almost imaged to death but it fits the field of my
Maksutov-Newton 190/1000 plus Atik 383L+ camera, so I couldn't resist.
I had rather ugly...
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1 |
1,733 |
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ASTRO: NGC 4631 by
Rick Johnson[_2_]
NGC 4361 in a rather famous planetary in the quadrilateral of Corvus.
The central star sits in a dark hole in the planetary. That isn't a
processing...
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1 |
1,169 |
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Arp 53 Lots of questions -- no answers by
Rick Johnson[_2_]
Arp 53/NGC 3290 is located in Hydra about 490 million light-years
distant according to its red shift. Arp put it in his category for
spirals with high...
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1 |
1,287 |
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ASTRO: Arp 27 by
Rick Johnson[_2_]
Arp 27/NGC 3631 is a grand design spiral in Ursa Major. Red shift shows
it to be about 62 million light-years distant. A Tully-Fisher
measurement says 70...
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1 |
1,466 |
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2 |
1,061 |
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ASTRO: Arp 27 by
Rick Johnson[_2_]
See I forgot the ASTRO: subject on my M81 re-redo. No granddaughter
here so haven't been turning on my filter as it hasn't been needed.
Shouldn't open my...
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0 |
1,108 |
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Another try at M81 by
Rick Johnson[_2_]
When you work and work on the same image you get blind to issues. I
decided Stefan was right and I over saturated it. I've cut it back some.
Rick
--...
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1 |
1,067 |
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ASTRO: Arp 60 and 196 by
Rick Johnson[_2_]
Another 2 fer deal. I keep finding it interesting that he often finds
two entries in one field and other times ignores equally peculiar
galaxies in other...
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0 |
883 |
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M81 Right image this time. by
Rick Johnson[_2_]
When I saved the image in JPG format for internet I'd selected an
adjustment layer and hadn't flattened the image. What got posted was
only one layer of...
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3 |
860 |
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2 |
1,489 |
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ASTRO: Hubble's Variable Nebula by
Rick Johnson[_2_]
NGC 2261/Hubble's Variable Nebula turns out to be more interesting than
I suspected. I've taken it several times over the last few years but
every time...
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6 |
1,937 |
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ASTRO: Yet another reprocess of M81 by
Rick Johnson[_2_]
About once a year I reprocess my old M81 image. I should retake the
data as it used 5 minute subs which contain twice the read noise of the
10 minute ones. ...
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2 |
910 |
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ASTRO: Arp 21 -- Blue among the gold by
Rick Johnson[_2_]
Arp 21 is located in eastern Leo Minor a bit over 400 million
light-years distant. It falls into Arp's class: Spiral Galaxies; 3
armed. That much seems...
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1 |
1,188 |