But when researchers at Bell Labs discovered that static tends to come from particular places in the sky, the whole field of radio astronomy opened up.
/ Murray Gell-Mann /
My astronomy sketches. IE users, hoover mouse over image for the inverted look. For fainter objects, take a look at the black-on-white original, sometimes it reveals more details.
Also known as: Collinder 399 (CR 399), Brocchi's cluster
Right ascension: 19h 27m
Declination: 20° 09'
Constellation: Vulpecula
Date/time: 2009.06.19 21:00 UT
Equipment: 10x50 binoculars
FoV: 3° 30'
Magnification and filter(s): 10x
Seeing: 4/10
Transparency: 4/5
This famous cluster demands a huge FoV, that can only be achieved by binoculars. At a NELM of about 5 magnitudes, you may notice it with your bare eyes as a large, diffuse spot. The coathanger shape is formed by 10 shiny stars, and the background is painted grainy by the Milky Way.
This tinny little object is also known as the Rocking Horse cluster. The name says it all: it really looks like a little horse jumping around the space. Although it's in a quite easy position, it still is a neglected object, as when it comes to Cygnus, everyone thinks of nebulae like the Veil and its companions, and the tiny shiny planetaries. Too bad, because this cluster is a real gem! It's special features are the two brightest stars of the cluster (at the front leg and the eye), that are apparently yellow, even though their spectral class suggests a rather white colour. This optical illusion is caused by the interstellar dust that is so common through Cygnus. A very important hint: you should use a fairly high magnification when looking at this object, because it's located in a field that is rich in bright stars, which makes it harder to detect the real shape of the cluster.
Perfectly symmetrical, sphere-like globular cluster. Cannot resolve it at all. It's a bit fainter than the nearby NGC 6517, yet it's fairly larger than that. It's located in a field that's very sparsely populated by stars, this makes finding and following it a real adventure.
A very dim, faint globular cluster that seems to be elongated in the N-S direction. Its core brightens softly, but it refuses to split up into stars even with averted vision and it also fails to respond to increasing magnifications. The object sits in the middle of some brighter stars that form a giant V-letter, pointing to the West.
Tiny, faint globular cluster with four clearly separated stars on its Western side. However, I'm not sure whether they really do belong to the cluster, or they are just plain foreground stars. With averted vision several other stars can be resolved at its slightly brighter core: two of them can be seen clearly with this technique, while some others pop up here and then when the atmosphere calms down for some moments. The core, just like the globular itself is not really sphere-like, but rather looks a little bit like an onion, with the thinner part looking to the East.
An extremely faint pair of galaxies in a sparsely populated starfield, therefore it's recommended to have some experience with starhopping. The brighter one is the NGC 5859, that is a small edge-on galaxy. Its core is brightening slowly. To the NW you may notice a small foggy star which turns out to be the core of another faint galaxy, the NGC 5857. It's much fainter than its companion, and features a star-like core. It nearly touches the outer regions of the NGC 5859. The faintest star of the sketch is catalogued at 15.21m, which is considered to be excellent in such a terrible atmospheric conditions.
A very faint, tiny little GX with an apparent magnitude of about 13.6-13 magnitudes. Its core is popping out strongly from the galactic plane and resembles an almond, although the Northern side of the core looks brighter, therefore it seems to be asymmetric. It demands high magnification levels. At 250x the shapes were easier to see, unfortunately because of the terrible seeing I had to step back to a lower power. Photographically it looks quite the same as NGC 4762.
A spectacular, faint pair of galaxies on the outer edge of the Virgo-cluster. NGC 4762: looks like a needle, a tiny galaxy with definitely brightening core bulb that's fullfilled in a little star-like core. It's a perfectly edge-on galaxy. NGC 4754: looks smaller and much fainter than its companion. It's a nearly face-on galaxy that looks like a diffuse elliptical galaxy with no details at all, except for the almond-shaped, softly brightening core. To the SW of this pair you may notice a third, even fainter companion galaxy, the NGC 4733 only about one full field of vision away.
A faint, but clearly detectable galaxy of about 12 magnitudes, with a tiny, star-like core. Near this, a faint little star can be noticed that seems to be a supernova, however it is only a bare foreground star. Compared with photographs, it seems that the area seen by me is in fact only the brighter region around the galactic core. The galaxy has even fainter outer territories that cannot be seen visually by me. With these, the area of the galaxy is about twice the size, but for now, I estimate an apparent visual size of about 3.5' x 0.8' only. The foreground star is encircled by the galaxy and it looks as if the latter would be darker around the star. However, this is obviously only an optical illusion. Apart from that, it still shows many details: brighter and darker areas. Because of this, it seems to be an irregular galaxy, yet it is in fact belongs to a rare sub-group of spirals.
Only about 40' away from NGC 5005, you can find this small, faint galaxy. This one is the fainter of the two, less spectacular with a slightly brightening core. It is in fact a very spectacular spiral, but visually it's more like a simple elliptical galaxy. At its Northern end you can detect a faint star of 13.9m, which appears (especially with averted vision) to twinkle on the surface of the galaxy. It's brightness is measured at 11m.
Date of entry: 07/06/08 15:01:16
Your name: Demelza Ramakers
Your comment: I really love you're sketches! They are amazing! Keep up the good work!
Clear Skies! Demelza Ramakers http://d.ramakers.googlepages.com/home
Where are you from? Holland
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Date of entry: 05/03/08 16:12:34
Your name: Faith J
Your comment: Superb sketches, Ferenc, absolutely brilliant. I love the mouse-over effect, too. http://visualdeepsky.webs.com
Where are you from? England
How did you know about my website? From Cloudy Nights forums
Date of entry: 04/14/08 06:20:04
Your name: Laurie
Your comment: Awesome sketches! I love it! I was curious what size and what kind of eyepiece were you using with each sketch? I do see the magnification power with each sketch. Thanks - let me know, email address laurie-wilmothotmail.com
Where are you from? State of Colorado in the USA
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Date of entry: 04/11/08 07:05:02
Your name: Ferenc Lovró
Your comment: Feel free to post your comments here. Criticism is welcome, however spam, html, ads, bad words are not tolerated.
Clear skies!
Where are you from? Nádasdladány, Hungary
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