Certain elements have no stable isotopes and are composed only of radioactive isotopes: specifically the elements without any stable isotopes are technetium ( atomic number 43 ), promethium ( atomic number 61 ), and all observed elements with atomic numbers greater than 82.

Although the CPS called itself a grass-roots movement, it had no members and was financed by The 61, " a private sector operational intelligence agency " said by its founder, Brian Crozier, to be funded by " rich individuals and a few private companies ".

Since the Tigers " ran up a 61 to 0 score on the hapless Mountain Staters, the pass played no important part in the result.

In 1902, Bohuslav Brauner suggested there was an element with properties intermediate between those of the known elements neodymium ( 60 ) and samarium ( 62 ); this was confirmed in 1914 by Henry Moseley who, having measured the atomic numbers of all the elements then known, found there was no element with atomic number 61.

There was, however, no corresponding interruption in Clemente's defensive prowess, nor, thus, in his unbroken string of Gold Glove Awards from 1961 onwards ; he would also lead the league in outfield assists in four of those seasons ( 1960, ' 61, ' 64 and ' 67 ), having already done so in 1958.

no: 61

Senator Henry S. Foote of Mississippi, who had suggested the creation of the Committee of Thirteen, later said, " Had there been one such man in the Congress of the United States as Henry Clay in 1860 –' 61 there would, I feel sure, have been no civil war.

There were 261 households out of which 17. 6 % had children under the age of 18 living with them, 26. 8 % were married couples living together, 8. 8 % had a female householder with no husband present, and 61. 3 % were non-families.

no: 61 f. Kr.

There were 7, 152 households out of which 34. 90 % had children under the age of 18 living with them, 61. 40 % were married couples living together, 8. 80 % had a female householder with no husband present, and 25. 90 % were non-families.

There were 11, 818 households out of which 37. 50 % had children under the age of 18 living with them, 61. 7 % were married couples living together, 8. 3 % had a female householder with no husband present, and 26. 70 % were non-families.

Each House appoints its own President from its members ( Article 61 ) and a clerk, not from its own members ; no officials of the States-General may be member of the States ( Subarticle 2 ).

There were 7, 043 households out of which 41. 20 % had children under the age of 18 living with them, 61. 70 % were married couples living together, 13. 10 % had a female householder with no husband present, and 20. 50 % were non-families.

There were 21, 980 households out of which 32. 80 % had children under the age of 18 living with them, 61. 20 % were married couples living together, 9. 90 % had a female householder with no husband present, and 24. 80 % were non-families.

There were 9, 719 households out of which 28. 90 % had children under the age of 18 living with them, 61. 40 % were married couples living together, 9. 20 % had a female householder with no husband present, and 25. 90 % were non-families.

There were 5, 590 households out of which 32. 80 % had children under the age of 18 living with them, 61. 40 % were married couples living together, 8. 70 % had a female householder with no husband present, and 26. 20 % were non-families.

There were 22, 737 households out of which 37. 40 % had children under the age of 18 living with them, 61. 40 % were married couples living together, 12. 00 % had a female householder with no husband present, and 22. 80 % were non-families.

The section of road that is now I-238 had no signed number before the 1964 renumbering ; it was pre-1964 Legislative Route 228 ( along with an unbuilt extension west to unbuilt State Route 61, which is still included in the Route 238 definition ).

There were 12, 104 households out of which 34. 70 % had children under the age of 18 living with them, 61. 00 % were married couples living together, 10. 60 % had a female householder with no husband present, and 24. 60 % were non-families.

11, 17, 30, 34, 51, 61 ) and Horace ( four books of Odes ) wrote lyric poetry, which however was no longer meant to be sung, but read or recited.

There were 1, 266 households out of which 36. 5 % had children under the age of 18 living with them, 61. 4 % were married couples living together, 8. 5 % had a female householder with no husband present, and 25. 4 % were non-families.

There were 61, 364 households out of which 29. 80 % had children under the age of 18 living with them, 56. 90 % were married couples living together, 11. 50 % had a female householder with no husband present, and 26. 30 % were non-families.

There were 11, 809 households, of which 45. 60 % had children under the age of 18 living with them, 61. 30 % were married couples living together, 15. 40 % had a female householder with no husband present, and 19. 50 % were non-families.

There were 61, 341 households out of which 30. 30 % had children under the age of 18 living with them, 54. 40 % were married couples living together, 8. 80 % had a female householder with no husband present, and 33. 80 % were non-families.

The spectral lines show emission, absorption, line doubling, P Cygni profiles, and inverse P Cygni profiles, with no obvious periodicity.

He also discovered several novas, including V1493 Aql ( Nova Aquilae 1999 ), V2275 Cyg ( Nova Cygni 2001 no.

2 ), V574 Pup ( Nova Puppis 2004 ), V2467 Cyg ( Nova Cygni 2007 ) and V459 Vul ( Nova Vulpeculae 2007 no. 2 ).< ref >

He retrieved his negatives from the trash ( there were no meteors on the photographs ) and found a series of images of Nova Cygni 1975 in several stages of brightening.

Due to its erratic nature, P Cygni has sometimes been called a " permanent nova "; however, its behaviour is no longer thought to involve the same processes associated with true novae.

He made the first measurement of stellar parallax: 0. 3 arcsec for the binary star 61 Cygni.

61 Cygni is a binary star divisible in large binoculars or a small amateur telescope.

61 Cygni is significant because Friedrich Wilhelm Bessel determined its parallax in 1838, the first star to have a known parallax.

Examples of well-known stars which are usually referred to by their Flamsteed numbers include 51 Pegasi ( see Extrasolar planet ), and 61 Cygni ( see Parallax ).

In 1838 Bessel won the race, announcing that 61 Cygni had a parallax of 0. 314 arcseconds ; which, given the diameter of the Earth's orbit, indicated that the star is 10. 4 ly away.

If the currently accepted figure of 11. 4 ly ( see 61 Cygni and discussion page ) is correct, Bessel's figure had an error of 8. 8 %.

As well as helping determine the parallax of 61 Cygni, Bessel's precise measurements allowed him to notice deviations in the motions of Sirius and Procyon, which he deduced must be caused by the gravitational attraction of unseen companions.

The first direct measurement of the distance to a star ( 61 Cygni at 11. 4 light-years ) was made in 1838 by Friedrich Bessel using the parallax technique.

Examples include 61 Cygni and 47 Ursae Majoris.

But Friedrich Bessel was skeptical about Struve's data, and, when Bessel published a parallax of 0. 314 ″ for the star system 61 Cygni, Struve revised his value for Vega's parallax to nearly double the original estimate.

Cygni, 61

ca: 61 Cygni

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