I'm going to have to take some time to study Odewahn's paper, but until I do, I have a question for you. Hi SNH, Not bad for for a inch! I'm not surprised you didn't see the grainy haze with that aperture. It's obvious in my inch with averted vision on good nights but challenging to be sure. All the stars and magnitudes shown in the sketch -- with the exception of the I went through the list and picked the brightest.
When you take a look at the paper, I believe the last page labels those brighter stars within the cloud. Thanks for writing. Have you seen Hubbles' 1. Wouldn't be able to resolve ngc but it is a very good effort. It's still cloudy for another few days. Hi fif52, Yes, I've seen it. The number of stars it shows is incredible. By: Bob King November 10, By: Camille M. Carlisle November 9, By: Jennifer Willis November 8, By: Alan MacRobert November 5, Astronomy in Space with David Dickinson.
By: David Dickinson November 4, Sky Tour Astronomy Podcast. By: J. Kelly Beatty November 1, By: Alan MacRobert October 29, Explore the Night with Bob King. By: Bob King October 27, By: Alan MacRobert October 22, Constant Contact Use.
Emails are serviced by Constant Contact. Tags Andromeda Galaxy M Comments October 5, at am I'd love to have a telescope big enough to resolve stars in Andromeda. Log in to Reply You must be logged in to post a comment. Peter Rowen October 18, at pm Just a suggestion: Many large professional 'scopes have observing nights scheduled when they allow the public to view. Imagine a diagonal from the southwest to northeast corner lower-right to upper-left as seen from the UK , and extend it for about the same distance again to reach mag.
The Andromeda Galaxy is a staggering 23 billion billion km away. When you consider that most of the stars we see are just tens or hundreds of lightyears away, the distance to the Andromeda Galaxy becomes phenomenal.
This is about the farthest thing in the Universe that you can see using just your eyes. Another amazing aspect becomes apparent when you photograph the Andromeda Galaxy : its enormous extent in the sky, spanning then width of six full Moons side-by-side.
Take our tour of the Andromeda Galaxy below with your telescope and discover its most intriguing sights. The Andromeda Galaxy and our own are the two most massive systems in a Local Group of around 30 galaxies. But while our Galaxy has up to billion stars, Andromeda is thought to contain a trillion.
Download a PDF guide to help you take the Andromeda tour. Start your journey into M31 by looking for the dark dust lane that runs along the northwest edge of the core. Look for the faint glow of the spiral arms beyond this lane. This glow continues toward another dark lane located further out. In fact, using higher power will increase the contrast between the galaxy and the sky background.
Roger N. When viewing galaxies, experience at the eyepiece is never more important; what looked to me like an amorphous blob when I first began observing now reveals a wealth of faint details. Your telescope may reveal galaxies not on your star map. Galaxies emit light from a combination of different types of objects. Because of this, their spectra are essentially continuous. Some observers with large scopes use an 82A filter to observe galaxies because of what it does to suppress the natural glow of the upper atmosphere.
Other observers have used both light and dark blue filters on bright spiral galaxies to boost the contrast of their arms. Whether or not your telescope will provide superb views on any given night is out of your control. The seeing — or atmospheric steadiness — sets the limit on how much detail is available. Some amateur astronomers believe that because galaxies are extended objects, seeing does not affect them as much as, say, double stars. These four objects are barred spirals. Visually observing detailed spiral structure, like you see in images, requires a large telescope.
My preference is to use inch telescopes and larger for such work. Most irregulars are faint, but there are exceptions. The king of irregular galaxies for northern amateur astronomers is M82 in Ursa Major. The Large and Small Magellanic Clouds are, by virtue of their closeness, the brightest galaxies — of any type — period.
Do you have a large scope and lots of patience? Observing clusters of galaxies may be for you. Such groupings, held together by mutual gravitational attraction, can contain a handful of galaxies or more than a thousand.
The former is a group of stars also known as an open cluster. The latter is a group of galaxies. Two popular clusters of galaxies are the Virgo Cluster and the Fornax Cluster. While the Virgo Cluster is the best known such group, many observers consider the Fornax Cluster the finest for amateur astronomers because of the interesting galaxies it contains. They number just NGC visual magnitude 9. This is a face-on barred spiral with open spiral arms.
Indeed, the brightest Abell clusters can provide serious satisfaction for large-scope users. Unfortunately, thousands of these groups will forever lie beyond the range of amateur instruments.
For other galaxy clusters, try the brightest members of the Hickson Catalog. Many catalogs of galaxies exist. All of these catalogs give positions in right ascension and declination for the included galaxies, accurate to a few arcseconds.
If you need information about a galaxy, try NED first. At this writing, it includes data for million objects. All of the above mentioned catalogs are subsets of the NED and are in its data set. Prepare to be overwhelmed! Whitlock Curator: J. Privacy Policy and Important Notices. Yes, you can see a few other galaxies without using a telescope! Return to the StarChild Main Page. Go to Imagine the Universe!
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