Example sentences of "[prep] the naked [noun] " in BNC.
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| 31 | It is maddening , since so often you can see traces of underdrawing on the painting 's surface just with the naked eye ! ’ |
| 32 | The magnification tells you how much larger an object looks that if it were viewed with the naked eye . |
| 33 | I well remember the occasion when he discovered a brightish nova , just about visible with the naked eye and easily seen with binoculars . |
| 34 | The faintest stars normally visible with the naked eye are of magnitude 6 , and binoculars will go down to at least 8 ; my 20 × 70 pair will reach 9 . |
| 35 | With the naked eye , or with binoculars , it is possible to distinguish between two stars which differ by only a tenth of a magnitude . |
| 36 | Mu Cephei is only of the fifth magnitude ( at least , generally so ; it is somewhat variable ) , so that with the naked eye it is not impressive even though it is actually redder than Betelgeux . |
| 37 | These pairs are separable with the naked eye , but closer binaries — or , of course , optical doubles — require binoculars or a telescope . |
| 38 | I have never been confident that I can split them with the naked eye , but 7 × 50 binoculars make it easy enough . |
| 39 | There are several Cepheids well within binocular range , and some can be followed throughout their variations with the naked eye : Eta Aquilæ , Zeta Geminorum and Beta Doradûs , for example . |
| 40 | There are even several , in addition to the Pleiades , which can be seen with the naked eye ; Præsepe in Cancer ( the Crab ) and the Jewel Box in the Southern Cross are other examples . |
| 41 | More than a hundred are known , though only three ( Omega Centauri and 47 Tucanæ in the southern sky , and the Hercules globular in the northern ) are clearly visible with the naked eye . |
| 42 | However , there are two exceptions : the Magellanic Clouds , so named because they were recorded by the Portuguese explorer Magellan in his voyage round the world — though they must have been noticed earlier , because they are very bright — and the Large Cloud is visible with the naked eye even in moonlight . |
| 43 | It is clearly visible with the naked eye , close to Nu ( 4.5 ) . |
| 44 | I have never been able to see it with the naked eye ( as some observers claim to have done ) , but it is not hard to find with × 7 , and it is easy with × 8.5 . |
| 45 | Of course the fluctuations of Epsilon Aurigæ are noticeable with binoculars , or even with the naked eye , at the time of eclipse ; Eta makes a suitable comparison star . |
| 46 | Præsepe , nicknamed the Beehive , is one of the finest clusters of its type ; it is easily visible with the naked eye and is well seen with × 7 binoculars , while with × 12 and × 20 it is truly glorious . |
| 47 | M67 is in the field with Alpha ( 4.2 ) ; it is said to be visible with the naked eye , but I have never been able to confirm this , though with binoculars it is very easy indeed . |
| 48 | There is however one splendid open cluster , M41 , which is easily visible with the naked eye and is resolvable with × 20 binoculars ; various individual stars can be seen with lower magnifications . |
| 49 | The fainter component is of magnitude 4.2 , and as the separation is 376 seconds of arc the pair can be split with the naked eye ; of course binoculars show it well . |
| 50 | The spectral type is F. In general F-stars are said to be yellowish , but I have never seen any colour in Canopus , either with the naked eye or with optical aid ; to me it looks pure white . |
| 51 | The Eta Carinæ nebula is visible with the naked eye . |
| 52 | It is easy to find , because it is usually visible with the naked eye at about magnitude 5 , and is in the same binocular field with Beta ; to either side of it are Tau ( 5.1 ) and Sigma ( 4.9 ) , which act as good comparisons , though Tau is of type K and has been suspected of slight variability . |
| 53 | It is easily visible with the naked eye , and is striking in binoculars ; with × 12 there is some resolution of its outer parts , and with × 20 it is seen to be starry . |
| 54 | It is a fine sight in binoculars , and the orange colour is noticeable even with the naked eye . |
| 55 | R Coronæ , in the bowl , is generally well within binocular range , and can just become visible with the naked eye , but when it drops to minimum it may fall to as low as magnitude 15 . |
| 56 | When photographed with adequate equipment it really does recall the outline of the North American continent ; it is dimly visible with the naked eye in the guise of a slightly brighter section of the Milky Way , and binoculars show it clearly as a large region of diffuse nebulosity . |
| 57 | Look in particular for the complicated Tarantula Nebula ( 30 Doradûs ) , which is the most brilliant part of the whole Cloud and can be identified even with the naked eye : it is the largest known diffuse nebula , and if it were as close to us as M42 in Orion it would cast strong shadows . |
| 58 | Keen-sighted people can distinguish them both with the naked eye . |
| 59 | Telescopes are needed to show the White Dwarf , but binoculars show the main pair clearly , and the components are separable with the naked eye . |
| 60 | Pollux is a K-type star , whose orange colour is noticeable with the naked eye and unmistakable in binoculars ; Castor is white , and is an interesting multiple system , though binoculars show it as single . |