martinsastro

Astronomy for all.
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Lester.jpg

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Dargo to Licola


IMG_0518.jpg

18 files, last one added on May 21, 2016
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Camper trailer files.



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IMG_0508.jpg
IMG_0508.jpg53 viewsLooking down at Italians flat 1Martin
M48-done2M.jpg
M48-done2M.jpgM48.305 viewsMessier 48 (also known as M 48 or NGC 2548) is an open cluster in the Hydra constellation. It was discovered by Charles Messier in 1771.

There is actually no cluster in the position indicated by Messier. The value that he gave for the right ascension matches that of NGC 2548, however, his declination is off by five degrees.Credit for discovery is sometimes given instead to Caroline Herschel in 1783.
Martin
potholomy.jpg
potholomy.jpgNGC6475.273 viewsMessier 7 or M7, also designated NGC 6475 and sometimes known as the Ptolemy Cluster, is an open cluster of stars in the constellation of Scorpius.

The cluster is easily detectable with the naked eye, close to the "stinger" of Scorpius. It has been known since antiquity; it was first recorded by the 1st century astronomer Ptolemy, who described it as a nebula in 130 AD. Giovanni Batista Hodierna observed it before 1654 and counted 30 stars in it. Charles Messier catalogued the cluster in 1764 and subsequently included it in his list of comet-like objects as 'M7'.

Telescopic observations of the cluster reveal about 80 stars within a field of view of 1.3° across. At the cluster's estimated distance of 800-1000 light years this corresponds to an actual diameter of 18-25 light years. The age of the cluster is around 220 million years while the brightest star is of magnitude 5.6.
Martin
Morning.jpg
Morning.jpg193 viewsMartin
good.jpg
good.jpgNGC6188237 viewsMartin
Nonet1final.jpg
Nonet1final.jpgNonet (the eyes).214 viewsThe Eyes Galaxies (NGC 4435-NGC 4438, also known as Arp 120) are a pair of galaxies about 52 million light-years away in the constellation Virgo. NGC 4438 is the most curious interacting galaxy in the Virgo Cluster, due to the uncertainty surrounding the energy mechanism that heats the nuclear source; this energy mechanism may be a starburst region, or a Black Hole embedded in an active galactic nucleus (AGN). Both of the hypotheses are still being investigated.

Additionally, there is evidence to suggest that the environmental damage to the interstellar medium of NGC 4438 may have been caused by an encounter (off-center collision) with NGC 4435, millions of years ago.
Martin
47Tucdone2G.jpg
47Tucdone2G.jpg47Tucanae262 views47 Tucanae (NGC 104) or just 47 Tuc is a globular cluster located in the constellation Tucana. It is about 16,700 light years away from Earth, and 120 light years across. It can be seen with the naked eye, with a visual magnitude of 4.0. It's number comes not from the Flamsteed catalogue, but the more obscure 1801 "Allgemeine Beschreibung und Nachweisung der Gestirne nebst Verzeichniss" compiled by Johann Elert Bode.

47 Tucanae was discovered by Nicolas Louis de Lacaille in 1751, its southern location having hidden it from European observers until then. The cluster appears roughly the size of the full moon in the sky under ideal conditions.

It is the second brightest globular cluster in the sky (after Omega Centauri), and is noted for having a very bright and dense core. It has 23 known millisecond pulsars, and at least 21 blue stragglers near the core.
Martin
IMG_0503.jpg
IMG_0503.jpg54 viewsAllan at Italians flat and his gazeboMartin

Last additions
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IMG_0518.jpgnice view60 viewsnice viewMartinMay 21, 2016
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IMG_0517.jpgARB Kev75 viewsARB Kev.MartinMay 21, 2016
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IMG_0516.jpg58 viewsKev's CarMartinMay 21, 2016
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IMG_0515.jpg58 viewsJacki and carMartinMay 21, 2016
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IMG_0514.jpg64 viewsAlex's carMartinMay 21, 2016
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IMG_0513.jpg61 viewsScotty's carMartinMay 21, 2016
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IMG_0512.jpg61 viewsMark beside his carMartinMay 21, 2016
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IMG_0511.jpg61 viewsHang this in the ceiling and Mark will be out of business :PMartinMay 21, 2016