| 词条 | 3 Vulpeculae |
| 释义 |
| name = 3 Vulpeculae }}{{Starbox observe | epoch = J2000.0 | constell = Vulpecula | ra = {{RA|19|22|50.88540}}[1] | dec = {{DEC|+26|15|44.6676}}[1] | appmag_v = 5.18[3] }}{{Starbox character | class = B6 III[2] | r-i = | v-r = | b-v = {{Val|−0.119|0.001}}[3] | u-b = | variable = SPB[6][4] }}{{Starbox astrometry | radial_v = {{Val|−14.1|1.1}}[3] | prop_mo_ra = +1.081[1] | prop_mo_dec = −10.270[1] | parallax = 9.0575 | p_error = 0.1967 | parallax_footnote = [1] | absmag_v = −0.17[3] }}{{Starbox orbit | reference = [6] | period_unitless = 367.7 | eccentricity = 0.15 | k1 = 6.8 }}{{Starbox detail | component1 = A | mass = 4.16[6] | radius = | luminosity = | gravity = 4.30[6] | temperature = 14,343[6] | metal_fe = | rotation = | rotational_velocity = | component2 = B | mass2 = 0.6 - 1.1[6] | age_myr2 = 25[6] }}{{Starbox catalog | names = {{odlist | V=V377 Vulpeculae | F=3 Vul | BD=+25°3811 | HD=182255 | HIP=95260 | HR=7358 | SAO=87136 | GC=26748 }}[5] }}{{Starbox reference | Simbad = HD+182255 }}{{Starbox end}}3 Vulpeculae (abbreviated 3 Vul) is a binary star system in the northern constellation of Vulpecula. 3 Vulpeculae is its Flamsteed designation. It has been nicknamed "the Observer's Nightmare" (or its Latin free translation, "Spectatori Error Inextricabilis") by some astronomers[6][7] because it is difficult to study as its orbital period is close to a year and its pulsation is close to a day.[7] It has been identified as a slowly pulsating B-type star,[7] a type of variable star of which only about 40 are visible to the naked eye.{{citation needed|date=December 2016}} References1. ^1 2 3 4 {{Cite Gaia DR2|685299763366337664}} {{Stars of Vulpecula}}{{giant-star-stub}}{{var-star-stub}}2. ^{{cite journal|bibcode=1977A&AS...30...71C|title=Spectral classification from the ultraviolet line features of S2/68 spectra. II - Late B-type stars|journal=Astronomy and Astrophysics Supplement Series|volume=30|pages=71|author1=Cucchiaro|first1=A.|last2=Macau-Hercot|first2=D.|last3=Jaschek|first3=M.|last4=Jaschek|first4=C.|year=1977}} 3. ^1 2 3 {{cite journal | title=XHIP: An extended hipparcos compilation | last1=Anderson | first1=E. | last2=Francis | first2=Ch. | journal=Astronomy Letters | arxiv=1108.4971 | volume=38 | issue=5 | pages=331 | year=2012 | bibcode=2012AstL...38..331A | doi=10.1134/S1063773712050015 }} 4. ^{{cite journal | display-authors=1 | last1=Samus | first1=N. N. | last2=Kazarovets | first2=E. V. | last3=Durlevich | first3=O. V. | last4=Kireeva | first4=N. N. | last5=Pastukhova | first5=E. N. | title=General Catalogue of Variable Stars | version=5.1 | journal=Astronomy Reports | year=2017 | volume=61 | issue=1 | pages=80–88 | bibcode=2017ARep...61...80S }} 5. ^{{cite simbad | title=3 Vul | access-date=2019-03-13 }} 6. ^{{cite web |title=3 Vul |first=Jim|last=Kaler |url=http://stars.astro.illinois.edu/sow/3vul.html |accessdate=2016-08-09}} 7. ^1 2 3 4 5 6 7 8 9 {{cite journal| last = Dukes| first = Robert| last2 = Kubinec| first2 = William| last3 = Kubinec| first3 = Angela| last4 = Adelman| first4 = Saul| date = 2003| title = A Photometric and Spectroscopic Study of 3 Vulpeculae: An Observer's Nightmare| journal = The Astronomical Journal| volume = 126| issue = 1| pages = 370| doi = 10.1086/375463|bibcode = 2003AJ....126..370D }} 10 : Flamsteed objects|Vulpecula|Slowly pulsating B stars|B-type giants|Spectroscopic binaries|Objects with variable star designations|Durchmusterung objects|Hipparcos objects|HR objects|Henry Draper Catalogue objects |
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