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NGC 4565 (also known as the Needle Galaxy or Caldwell 38) is an edge-on spiral galaxy about 30 to 50 million light-years away, in the constellation Coma Berenices.
Date: 06.05.2016
Frames: 44 x 300 sec, ISO400 (No darks, flats or bias taken)
Exp: 3.6 hours
Equipment
Camera: Canon EOS 60Da
Telescope: APM Triplet Apo 107/700mm
Mount: Skywatcher AZ-EQ6
Guiding: TS guidescope 60/240mm and
Lacerta MGEN Autoguider
IC443 Jellyfish Nebula HaRGB
6 hours of exposure (3 Ha and 3 colors)
Data collected during two nights Dec 12 and Dec 14, 2015
Been planning to do this one for many months, could never build up the gumption to do it.
More work than my usual shot.
Tried making black PlayDoh using white and some old inkjet ink, ended up more gray.
A few weeks ago I picked up a great assortment of PlayDoh, many colors including black. So I molded and cut and pasted the thing up last week.
Got the courage to shoot it tonight. And mind you, the flash has been misbehaving.
But it got the shot, my solution for the classic Rubics Cube.
My camera for the stereo shot arrived Wednesday. A used G6. I messed around with it and got a nice shot of a Christmas bulb filled with jello. Focusing is a pain, but at first blush, the depth of field is greater than my D90.
The G6 was 135$ shipped, so a cheap camera will do a good job with this type of photo. It's all in the flash, folks.
First light for the ASIAir I picked up.
19x300s
ASI071MC-Cool
ASIAir, AVX, Orion SkyGlow filter, WO SpaceCat 51.
The intriguing Common Raven has accompanied people around the Northern Hemisphere for centuries, following their wagons, sleds, sleighs, and hunting parties in hopes of a quick meal. Ravens are among the smartest of all birds, gaining a reputation for solving ever more complicated problems invented by ever more creative scientists. These big, sooty birds thrive among humans and in the back of beyond, stretching across the sky on easy, flowing wingbeats and filling the empty spaces with an echoing croak. (Cornell).
All comments regarding this picture, subject, composition, etc are welcome and appreciated. TIA.
To learn more about these amazing birds please visit www.allaboutbirds.org/guide/Common_Raven
The Bubble Nebula in narrowband.
HA, Sll, and Olll. All exposures were 30 minutes each, with a total exposure time of 26 hours.
Combined in the Hubble palette.
Scope:- TEC140
Mount:- Avalon fast reverse.
Camera:- Atik 490 cooled to -10
Captured in SGP
Processed In Photoshop and Pixinsight
Shot at home in the Uk, just north of Cambridge.
In celebration of Mats Valk, breaking the World Record by Solving the Cube in 4.74 seconds in November 2016
St. Elisabeth church
Marburg
Germany
HDR
Sigma 10-20 mm
There are certainly a lot of ugly problems in the world due to a lack of water.
Here I thought that water could solve a few issues ;-)
"Exactly. Basically, it says the world has been broken into pieces. All this chaos, all this discord. And our job-- everyone's job-- is to try to put the pieces back together. To make things whole again."
This photo lacks focus, like my mind.
I spent hours trying to solve a maths problem, then found some required information was missing. This picture shows the similar thing. Some parts are missing to complete the expected geometrical shape.
We came back from our adventure to the coast a couple of day early. A tropical storm is potentially building in the gulf. For whatever reason, Hadley is bored and antsy, walking back and forth. An old fashioned method of occupying himself seems to be solving the problem.
I really cannot recall the last time I saw real cards in his hands but whatever works!
ODC: solving the problem
"Let's have a look at your communication system, Benny. I bet it's the damn transducer. We had problems with the '78 DMG transducers everywhere recently." says Kelly. She's so professional when she's at work. Benny is speechless! He has never met a scientist like her...
(The light comes from a Brickstuff Pico LED I managed to put between a round tile and a lightsaber hilt, to simulate a flashlight. Then I erased the wires in Photoshop.)
A snowflake that doesn’t know what it wants to be! This intriguing snowflake has a shape that is battling between branches and a solid plate shape, and you can clearly see where the lines of battle have been drawn. View large!
As you’ve seen so far in this series, the tiniest snowflakes always have a way of being enigmatic and interesting. Maybe it’s the lack of complexity that allows us to focus on specific features, or maybe it’s that smaller snowflakes contain smaller details that we can more easily see and be curious about. In this case, there’s a mystery to solve!
The upper-right-most branch holds the story of the branching while the lower-left tells us how the crystal stays as a plate. In the former, we can identify a crystal split. The snowflake divides itself into two new planes when a cavity forms in the ice, a very common occurrence. What’s odd here is that the bottom plate grows the branch at the tip, but the rest of the bottom plate falls behind the top plate in growth. This might be a case where the knife-edge instability comes into play.
I don’t fully understand the physics (I’m a geeky photographer, not a physicist), but when a snowflake is incredibly thin, the growth can accelerate. If the bubble/cavity that cut the snowflake in half changed its thickness just at the tip, it could propel the tip into a branch-like growth without causing the same rapid growth to the rest of the crystal facets. It’s unusual, but not the first time I’ve seen it – something must behave slightly differently at the corner to evoke this behaviour.
On the other side of the snowflake, we see a very solid hexagonal shape, but the ghosts of branches are hidden closer to the center. How does this happen? Again, I’m not entirely sure. I love these mysteries! I believe the best explanation would be this: As the branches began to form, the growth of the top plate was keeping pace, likely due to the direction that the snowflake was falling. The same physics that made the branch grow faster than the edges of the underside are at play, but with more water vapour building up the top plate, it kept pace with the branching, and eventually overpowered it. As soon as any one plane of growth as the advantage of growing farther out, it chokes out the growth of the competition.
Again, my ideas are just the theories of a man who has studied snowflake growth for the fun of it, and has witnessed many thousands of these crystals to see how they grow. It’s open to interpretation – and I welcome yours!
For more musings on snowflakes and the most detailed photographic tutorial on the subject you’ll ever see, consider a copy of Sky Crystals: www.skycrystals.ca/book/ - it’s a great winter companion for any photographer or naturalist. Winter can be more tolerable when you ponder the mysteries in a single snowflake.