Tag Archives: M82

Free Astronomy Magazine – January-February 2018 Issue Available For Reading And Download

Greetings, fellow astrophiles!

The most recent issue of Free Astronomy Magazine (January-February 2018) is available for your reading and downloading pleasure at www.astropublishing.com (click the link to go directly to the issue).

Free Astronomy Magazine was featured as the first of a series of articles on great free online content for amateur astronomers (see A Universe Of Free Resources Part 1) and we’ll be keeping track of future publications under the Online Resources category on the CNYO website.

You can find previous Free Astronomy Magazine issues by checking out our Free Astronomy Magazine Category (or look under the Education link in our menu).

For those wanting a quick look at what the issue has to offer, the Table of Contents is reproduced below.

January-February 2018

The web browser-readable version of the issue can be found here:

January-February 2018 – www.astropublishing.com/1FAM2018/

For those who want to jump right to the PDF download (27 MB), Click here: January-February 2018

CNYO Observing Log: Baltimore Woods, 22 March 2014 (And An Erigone Summary)

Greetings fellow astrophiles!

The often-announced (on this site, anyway) Regulus occultation by asteroid (163) Erigone on the morning of March 20th was a near-wash (no rain, but plenty of cloud cover), with only a few messages being passed around at midnight to see if anyone was even going to try for 2:00 a.m. That said, the International Occultation Timing Association (IOTA) got lots of good press and, with luck, a similarly notable occultation will occur to catch other eyes and instigate the IOTA to prep another big public recording effort. Those who want to relive the non-event can watch the Slooh Community Observatory coverage in the youtube video below.

Then, two days later, Bob Piekiel with his Meade C11 and I with my New Moon Telescope 12.5″ Dob treated two couples at Baltimore Woods to the kind of crystal clear and steady skies you read out but usually never have the good fortune to be out for. With the late March and early April temperatures beginning to melt the high hills of ice and snow around all the big parking lots in the area, the Baltimore Woods setup was a bit solid, a bit slushy, and quite dirty. Our four-person audience arrived early in time to watch the clear skies darken and Jupiter, Sirius, and Betelgeuse first appear in the South/Southwest sky. For the next 90 minutes or so, the observing list included Jupiter (several times at several magnifications, both early in the evening and after the skies had sufficiently darkened to bring out more detail), the Pleiades (M45), the Beehive Cluster (M44), the Orion Nebula (M42), Alcor and Mizar in the handle of the Big Dipper, the Andromeda Galaxy (M31) and its prominent satellites (M32 and M110) very low on the horizon (very likely our last catches of our sister galaxy for several months to come), and even M82 to say that we had, at least, seen the location of the recent supernova (if not a last few photons from it).

In an attempt to help someone remember as many constellations as possible at the Liverpool Public Library lecture a few weeks prior, I retold one of the more memorable tales of the winter star groupings of Orion the Hunter, Taurus the Bull, Canis Major (the big dog), Canis Minor (the little dog), and the Pleiades that I picked up from the excellent Dover book Star Lore: Myths, Legends, and Facts by William Tyler Olcott (which you can even read and download for free in an earlier form at archive.org).

Long story short, the Pleiades (also known as the Seven Sisters or the Seven Virgins) were the target of Orion’s rather significant attention, so much so that in his last run to them, the ever-invasive Zeus placed an equally significant bull in Orion’s path, leaving Orion and his two dogs (Canis Major and Canis Minor) stuck in their tracks. As is apparent from the images below, these four constellations (and one star cluster/Messier Object) are all tightly spaced in the Winter Sky. Better still, the end of Winter even finds these constellations standing on the horizon (instead of upside down in morning Autumn skies), making the picture all the more easily seen. As Orion is second only to the Big Dipper in terms of ease-of-seeing by practically everyone (raised in the tradition of Western Constellation arrangements, anyway), it’s the start constellation from which to find the other three. Canis Major is easily found by its shoulder star Sirius, the brightest start in our nighttime sky. Canis Minor is a leap from Sirius to Procyon, also a prominent star. Taurus the Bull is easily found by its head, the local star cluster known as the Hyades, and its orange-red eye, Aldebaran. The small sisters lie within the boundary of Taurus in a cluster that to the slightly near-sighted might just look like a fuzzy patch (but which, in binoculars, reveals numerous tightly-packed stars).


Our cast of characters (and nearest neighbors). Image made with Starry Night Pro.


The prominent stars in their starring roles. Image made with Starry Night Pro.

After packing up around 9:30 (about when the temperatures began to drop precipitously), I managed a single long-exposure image with my Canon T3i of the region above – quite possibly my last good look at the most famous Winter grouping until they appear again in the morning Autumn skies.


Final scene from Baltimore Woods (with story labels). Click for a larger view.

CNYO Observing Log: Baltimore Woods, 16 March 2013


ABOVE: A 15 sec. exposure from Baltimore Woods. (1) Sirius in Canis Major, (2) Orion, (3) The Hyades (the head of Taurus the Bull), (4) Jupiter, (5) the Pleiades, (6) The Moon.

The sky opened up for a crisp and clear viewing session late in the day after a long spell of heavy cloud cover on Saturday, March 16th. I made it to Baltimore Woods just in time for Bob Piekiel to direct me and my pair of Zhumell 25×100’s to the low-Western Horizon to take in Comet pan-STARRS (C/2011 L4, that is) with a light amber coloring and even a slight vertically-pointing oval that became an obvious tail at low magnification. This view only seemed to get better Sunday night (17th), where the comet was Naked Eye from downtown Syracuse!

A horizon view of pan-STARRS is shown below (above the red asterisk. Canon DS1400 IS Digital Elph, 15 second exposures). Click on the image for a larger view.


A time lapse of pan-STARRS setting below the Western horizon at Baltimore Woods is shown below (starts below the asterisk at left. Canon DS1400 IS Digital Elph, 4x zoom, 15 second exposures). Click on the image for a larger view.


A view through the Zhumell 25×100 binos is below (by way of some fancy camera balancing). Click on the image for a larger view.


spaceweather.com has a summary of the current situation on their website (as of 19 March 2013):

A growing number of people are reporting that they can see Comet Pan-STARRS with the naked eye. Best estimates place the magnitude of the comet at +0.2, about twice as bright as a 1st magnitude star. As the comet moves away from the sun, its visibility is improving. Observing tip: Step outside about an hour after sunset and face west. Pinpoint the comet using binoculars. Once you know where to look, put the optics aside and try some naked-eye observing.

By the time pan-STARRS set below the horizon, the sky was quite dark and extremely transparent. Bob and I proceeded to play for an hour with his 11” SCT, new Meade 5000 super- and ultra- wides (24 mm and 40 mm), and my personal favorite, his Collins Image Intensifier (which does exactly what it describes – increasing the brightness of objects in the eyepiece and, in many cases, making observable a dim object you might otherwise completely pass over without knowing it was there – you can see some example images here: darkerview.com/wordpress/?tag=intensifier).

Besides a thoroughly enjoyable conversation about optics, focal reducers, and new eye candy to look for at NEAF, highlights of the observing session included:

Visible Planets

* Jupiter (just to the right of the Hyades, as Taurus exchanges its otherwise brightest left eye (Aldebaran) with Jupiter as its right eye). Having given Jupiter considerable scope time this year already, we checked it mostly just to confirm it was still there.

In Taurus

* Messier 45 – The Pleiades served as an excellent cluster for testing Bob’s new focal reducer (which, basically, increases the field of view). An excellent image showing what the focal reducer does is shown below (from webcaddy.com.au/astro/f-066fr-pics.htm).


In Orion

* Messier 42 – The Orion Nebula (without and without enhancement, with the Collins brightening and increasing the extent of the nebulosity). The Orion Nebula is the brightest and most expansive nebula observable from Earth and it sets earlier every day, so we spent considerable time on it before missing it all Spring and Summer.

In Andromeda

* The Andromeda Galaxy (M31) and Messier 32 – The intensifier brought out the presence of the central core of Andromeda but did not significantly enhance detail (specifically the dust lanes and spaces between the spiral arms that one can see in any eyepiece in dark skies). This was likely due to the presence of the Moon nearby in the sky (which can do a significant number to nebula and galaxy detail even when only present as a sliver), but I did learn some more about the intensifier eyepiece (see below). M32 (one of M31’s satellite galaxies) was also bright but featureless.

In Leo

* Messier 65, Messier 66, and NGC 3628 – All three galaxies in The Leo Triplet were excellent in the intensifier (and in the same field of view) despite the Moon. At the first Inner Harbor session, M65 and M66 were just visible (due to the the light pollution around the site) thanks to Ryan Goodson bringing a 16” New Moon Telescope Dobsonian.

In Gemini

* Messier 35 – an open cluster nearly the size of the full Moon, containing a few bright stars and a tight grouping of dimmer ones. The intensifier has a tendency to “haze” a bit around these tight groupings as the pixels on the CCD chip begin to oversaturate.

In Canis Major

* Messier 41 – While observing this open cluster, the over-saturation of the CCD chip became obvious in the form of perfectly circular discs around each of the brightest stars, making each appear to have a well-defined nebula around it (not that these stars need any kind of image enhancement to see clearly in any scope. As you might guess, brighter star = bigger + brighter disc).

In Perseus

Caldwell 14 – The Double Cluster – in the same way that stereotypical night vision goggles give you only shades (or different intensities) of green, the intensifier sacrifices color for “green intensity.” Accordingly, the reds, oranges, and blues in the Double Cluster that make it such an interesting eyepiece object go away, leaving you with just (well, not just) two dense star clusters. This is the best argument for intensifiers being used as tools for galaxy and nebulae hunting.

In Ursa Major

Messier 81 – NGC 3031, Bode’s Galaxy – An excellent sight in the intensifier despite the crescent Moon (which would otherwise make it nearly featureless).

Messier 82 – NGC 3034, Cigar Galaxy – M81’s gravitational neighbor (with M82 being the smaller neighbor and, therefore, more gravitationally influenced by M81). M82 appears to have two distinct cores in the intensifier (that would make it look like two galaxies about to merge). I attribute this double-core view to the intensifier picking up the massive filamentous structure perpendicular to M82’s galactic plane – but should buy my own intensifier to study it in more detail!).

Messier 97 (Own Nebula) + Messier 108 – Admittedly, Bob and I kept passing M108 while trying to find M97 and failed to recognize it as M108 (faint but pleasant in the intensifier). That said, M97 was a very difficult find despite Bob bringing a GOTO scope and, by the time I confirmed to myself that I had it in the field of view, I was under-impressed with the intensifier view (it was barely an object with averted vision, although some part of this could have been the Moon’s presence).

We closed the session around 9:15 p.m. by returning to the Orion Nebula for one last comparison of the intensifier and the Meade 40 mm.

Lessons for the evening: (1) Don’t assume of comets! And, if you observe, report to the group so others know to also not assume! (2) Just because you’re freezing cold doesn’t mean you should stand 1/2 inch from a portable propane heater. At what feels like cryogenic temperatures, your leg goes from 10 F to 150 F before your nerves notice it.