MOTS EN ANGLAIS EN RAPPORT AVEC «PLANETARIES»
planetaries
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10 LIVRES EN ANGLAIS EN RAPPORT AVEC «PLANETARIES»
Découvrez l'usage de
planetaries dans la sélection bibliographique suivante. Des livres en rapport avec
planetaries et de courts extraits de ceux-ci pour replacer dans son contexte son utilisation littéraire.
1
An Introduction to Astrophysics
O'Dell computed the linear radii of a large number of planetaries. Assuming the
sizes of the nebulae to lie between the limit of identification and 0.7 pc, O'Dell
calculates the total number of planetaries in the Galaxy to be 4.8 x 104. More
recent ...
2
Introduction To Astrophysics, 2/e
number of planetaries in the Galaxy to be 4.8 X 104. More recent determination
by various authors point to the conclusion that the actual number should be
comparatively less. Planetaries are believed to have heavy concentration around
the ...
Basu, Baidyanath, chattopadhyay Tanuka
3
Publications of the Lick Observatory
It is not impossible, however, that the marked concentration of small planetaries
near 19h is merely fortuitous. Planetary Forms While the details of the forms
assumed by individual planetaries are frequently of bewildering complexity, there
are ...
4
Planetary Nebulae: Proceedings of the 131st Symposium of the ...
3.2 M31 Lawrie and Ford (1982) used a Velocity Modulating Camera to observe
45 planetaries within 200 pc of the center of M31. Lawrie (1983) measured the
radial velocities for 33 of the nebulae to derive a systemic velocity of -309 :l: 25
km ...
International Astronomical Union. Symposium, Silvia Torres-Peimbert, 1989
5
Planetary Nebulae: Observations and Theory
On the question of abundances, what strikes me is that except in the halo
planetaries, there are remarkably small differences in the abundances among
difference planetaries. There are a few Population I planetaries with considerably
higher ...
6
The Galaxies of the Local Group
Furthermore observations of the halo planetaries M31290 and M31-372, for
which Henry (1990) finds logarithmic oxygen abundances [O/H]8 = 8.54 and 8.05
, respectively (on a scale where the logarithmic hydrogen abundance is 12.0), ...
7
Sky Vistas: Astronomy for Binoculars and Richest-Field ...
Nevertheless, these planetaries are very interesting visually. Planetary nebulae,
like globular clusters, are not Milky Way objects: they are found in every direction
in the sky. Moreover, like globulars planetaries are more abundant toward the ...
Craig Crossen, Gerald Rhemann, 2004
15.2 Spatial Distribution Although no complete survey of the planetaries in M31
has been published, the partial surveys so far carried out provide good coverage
of much of the galaxy, enough to determine the spatial distribution reasonably ...
9
3,000 Deep-Sky Objects: An Annotated Catalogue
One of the more prominent and unusual characteristics of many brighter
planetaries is their “blinking effect” – the instantaneous brightening and dimming
of the nebula that occurs when the observer switches from direct to averted vision
and ...
10
The Observer's Sky Atlas: With 50 Star Charts Covering the ...
Nebulae Most nebulae belong to one of the five groups of planetaries, diffuse
nebulae, open and globular star clusters, and galaxies. Planetary nebulae:
These are called “planetaries” because in a telescope they look like small,
greenish ...
10 ACTUALITÉS CONTENANT LE TERME «PLANETARIES»
Découvrez de quoi on parle dans les médias nationaux et internationaux et comment le terme
planetaries est employé dans le contexte des actualités suivantes.
John Deere launches 370E, 410E, 460E articulated dump trucks …
The hauler axles are designed for heavy-duty applications and have on-the-fly differential locks and outboard planetaries. Each axle is ... «Equipment World Magazine, juin 15»
John Deere E-Series Articulated Dump Trucks Feature a Load of …
... the John Deere hauler axles are designed for heavy-duty applications and include on-the-fly differential locks and outboard planetaries, and ... «The FINANCIAL, juin 15»
A Budding Nebula May Hatch a Butterfly
Hourglass structures are common among planetaries. But researchers still don't quite know how these unique nebulae form, as they had yet to ... «Sky & Telescope, juin 15»
Longtime 'Stargate' EP Aims to Bring Back "the Fun Sci-Fi" With …
We're imagining a future where corporations, multi-corps, multi-planetaries go out and see worlds to exploit resources. They'll find a world, ... «Hollywood Reporter, juin 15»
Dark Matter: What to Expect From Syfy's New Space Opera
“We're imagining a future where multi-planetaries rule,” Mallozzi says. “Essentially corporations have gone out and ceded planets; they've ... «Den of Geek!, mai 15»
Claas combines
The difference with this model, Gray said, is that Claas is “using outboard planetaries instead of hydro motors for the rear wheel assist. «Grainews, janv 15»
Cloudy Skies - Nebulae
... a planetary that also has a lot of hydrogen fluorescence, and a somewhat more ragged and diffuse appearance than many planetaries. «Santa Barbara Edhat, nov 14»
Pair of Toyota Tundra Monster Trucks Take SEMA by Storm
... planetaries Fully hydraulic front steering through Eaton orbital valves Quick-ratio electrohydraulic rear steering TONKA TUNDRA The second ... «The Auto Channel, oct 14»
Aquarius comes of age during fall Lawnchair season
These planetaries are peculiar objects, to say the least. There are some 500 known examples, although more than 10,000 may exist in the ... «Nashua Telegraph, sept 14»
A guide to the 2014 Neptune opposition season
In fact, this is where "planetaries" get their moniker, as the pesky deep sky objects resembled planets in those telescopes of yore… The 1846 ... «Phys.Org, août 14»
