• Thumbnail for 61 Cygni
    61 Cygni /ˈsɪɡni/ is a binary star system in the constellation Cygnus, consisting of a pair of K-type dwarf stars that orbit each other in a period of...
    50 KB (5,255 words) - 11:51, 22 June 2024
  • idea came from an object that was at the time believed to exist in the 61 Cygni system, and which might represent an extrasolar planet. The planet Mesklin...
    38 KB (3,687 words) - 04:54, 4 October 2024
  • Thumbnail for Light-year
    to a star other than the Sun, by Friedrich Bessel in 1838. The star was 61 Cygni, and he used a 160-millimetre (6.2 in) heliometre designed by Joseph von...
    24 KB (1,934 words) - 19:24, 16 September 2024
  • Thumbnail for Cygnus (constellation)
    stellar association of Cygnus OB2. One of the stars of this association, NML Cygni, is one of the largest stars currently known. The constellation is also...
    51 KB (5,865 words) - 15:36, 27 September 2024
  • spiral galaxy in the constellation Cetus 61 Ursae Majoris is located about 31.1 light-years from the Sun. [1] 61 Cygni was christened the "Flying Star" in...
    9 KB (1,291 words) - 15:08, 12 August 2024
  • Thumbnail for K-type main-sequence star
    unchanged over the years, are: Sigma Draconis (K0 V) Epsilon Eridani (K2 V) 61 Cygni A (K5 V) Other primary MK standard stars include: 70 Ophiuchi A (K0 V)...
    13 KB (1,420 words) - 17:34, 7 September 2024
  • Thumbnail for Binary star
    binaries include 61 Cygni (a binary in the constellation Cygnus, composed of two K class (orange) main-sequence stars, 61 Cygni A and 61 Cygni B, which is...
    67 KB (8,101 words) - 13:43, 4 September 2024
  • Thumbnail for Stellar parallax
    parallax measurements in 1832–1838, for the stars Alpha Centauri, Vega, and 61 Cygni. Stellar parallax is so small that it was unobservable until the 19th century...
    22 KB (2,777 words) - 09:57, 27 August 2024
  • Thumbnail for Friedrich Wilhelm Bessel
    stellar parallax. In 1838 he published a parallax of 0.314 arcseconds for 61 Cygni, which indicated that the star is 10.3 ly away. Compared with the current...
    30 KB (2,908 words) - 08:03, 24 September 2024
  • Thumbnail for Friedrich Georg Wilhelm von Struve
    catalogue are sometimes indicated by the Greek letter sigma, Σ. Thus, 61 Cygni is also designated as Σ2758. Since most double stars are true binary stars...
    13 KB (1,285 words) - 09:14, 13 September 2024
  • Thumbnail for Albireo
    Albireo (redirect from Beta Cygni)
    Albireo /ælˈbɪrioʊ/ is a binary star designated Beta CygniCygni, abbreviated Beta Cyg, β Cyg). The International Astronomical Union uses the name "Albireo"...
    32 KB (3,013 words) - 01:03, 1 October 2024
  • Thumbnail for List of nearest stars
    This PMa offset between 61 Cyg A and B points at the possible presence of a third body in the system, likely orbiting around 61 Cyg B. Pinamonti, M.; Damasso...
    116 KB (5,343 words) - 04:56, 3 October 2024
  • Thumbnail for Kaj Aage Gunnar Strand
    his 1942 and 1957 claims of a planetary system around the nearby star 61 Cygni while working under the direction of Peter van de Kamp at the Sproul Observatory...
    8 KB (742 words) - 09:40, 29 September 2024
  • Thumbnail for Astrometry
    first measurement of stellar parallax: 0.3 arcsec for the binary star 61 Cygni. In 1872, British astronomer William Huggins used spectroscopy to measure...
    18 KB (1,895 words) - 19:52, 17 July 2024
  • Thumbnail for Outer space
    the German astronomer Friedrich Bessel. He showed that the star system 61 Cygni had a parallax of just 0.31 arcseconds (compared to the modern value of...
    137 KB (13,488 words) - 16:04, 20 September 2024
  • astronomical unit to 200 feet. Friedrich Bessel measured the parallax of 61 Cygni, concluding a distance of 10 light years, making him "the first man who...
    13 KB (1,718 words) - 23:50, 4 May 2024
  • Thumbnail for Parsec
    in 1838, who used this approach to calculate the 3.5-parsec distance of 61 Cygni. The parallax of a star is defined as half of the angular distance that...
    28 KB (3,281 words) - 14:40, 30 September 2024
  • generation ships were deployed to colonise a planet orbiting the star 61 Cygni (this becomes a major segment of the plot of Chasm City). The flotilla...
    17 KB (2,071 words) - 07:48, 5 July 2024
  • there are "nearly twenty-five million inhabited planets in the Galaxy". 61 Cygni A star system advanced by Lord Dorwin as the potential site for a planet...
    72 KB (8,298 words) - 16:11, 1 October 2024
  • 171 +10 PM; RM 58 Andromedae 0.159 +8 PM; RM 61 Cygni 61 Cygni A 5.281 -65.97 PM; RM 61 Cygni 61 Cygni B 5.172 -64.59 PM; RM 68 Aquarii "high" +24.5...
    32 KB (4,630 words) - 23:02, 12 August 2023
  • Thumbnail for Deneb
    Deneb (redirect from Alpha Cygni)
    consisting of Deneb, Gamma Cygni, Delta Cygni, 30 Cygni, Nu Cygni, Tau Cygni, Upsilon Cygni, Zeta Cygni and Epsilon Cygni. Consequently, the Chinese name...
    29 KB (3,104 words) - 21:08, 23 August 2024
  • Thumbnail for 16 Cygni
    16 Cygni A and 16 Cygni B, together with a red dwarf, 16 Cygni C. In 1996 an extrasolar planet was discovered in an eccentric orbit around 16 Cygni B....
    22 KB (2,051 words) - 14:13, 17 July 2024
  • mass into interstellar ships containing Corrupted warriors. Kira flees to 61 Cygni on a shuttle and discovers that the Wranaui have started a war with humanity...
    13 KB (1,346 words) - 07:18, 19 April 2024
  • Thumbnail for Giuseppe Piazzi
    motions of stars to find parallax measurement candidates. One of them, 61 Cygni, was specially appointed as a good candidate for measuring a parallax,...
    12 KB (1,283 words) - 14:52, 15 August 2024
  • "Baby's Eyes"   6:26 12. "C'est la vie (Say the Casualties!)"   3:03 13. "61 Cygni Ave" A. Palomo J. Palomo 4:04 14. "News from the Sun (Live Bootleg)" A...
    15 KB (1,009 words) - 11:51, 13 May 2024
  • Thumbnail for Star catalogue
    star 61 Cygni is designated "Struve 2758" or "STF 2758". Stars of his catalogue are sometimes indicated by the Greek letter sigma, Σ. Thus, 61 Cygni is...
    48 KB (5,507 words) - 20:54, 1 June 2024
  • Thumbnail for Star
    the early 1900s. 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...
    147 KB (16,412 words) - 12:11, 7 September 2024
  • 1 (or Icarus) — second most distant star, 9 billion light years away. P Cygni — suddenly brightened in the 17th century WNC4 — Messier Object 40 Zeta...
    6 KB (666 words) - 16:36, 25 September 2024
  • Thumbnail for Heliocentrism
    than zero by measuring the parallax of 0.314 arcseconds of a star named 61 Cygni. In the same year Friedrich Georg Wilhelm Struve and Thomas Henderson measured...
    101 KB (12,080 words) - 10:31, 4 October 2024
  • Thumbnail for Tycho Brahe
    Friedrich Bessel discovered a parallax of 0.314 arcseconds of the star 61 Cygni. According to Owen Gingerich and Christopher Linton, these tables were...
    98 KB (12,534 words) - 10:15, 29 September 2024