| 词条 | R Cancri |
| 释义 |
| name = R Cancri }}{{Starbox observe | epoch = J2000 | ra = {{RA|08|16|33.82789}} | dec = {{DEC|+11|43|34.4557}} | appmag_v = 6.07 - 11.9[3] | constell = Cancer }}{{Starbox character | class = M6.5-9e[1] | b-v = 1.53[2] | u-b = 0.49[2] | variable = Mira[3] }}{{Starbox astrometry | radial_v = 35.42 ± 0.52[3] | prop_mo_ra = 4.31 ± 1.57 | prop_mo_dec = -12.58 ± 0.75 | parallax = 1.58 | p_error = 1.43 | parallax_footnote = | absmag_v = −0.36{{citation needed|date=August 2016}} }}{{Starbox catalog |names=HD 69243, HIP 40534, HR 3284, SAO 97694, BD+12° 1803 }}{{Starbox reference |Simbad=R+Cnc }}{{Starbox end}}R Cancri is a Mira variable in the constellation Cancer. Located approximately {{convert|633|pc|ly}} distant, it varies between magnitudes 6.07 and 11.9 over a period of approximately 357 days.[4] References1. ^{{Cite journal | doi = 10.1086/190318| title = Revised Catalog of Spectra of Mira Variables of Types ME and Se| journal = The Astrophysical Journal Supplement Series| volume = 28| pages = 271| year = 1974| last1 = Keenan | first1 = P. C. | last2 = Garrison | first2 = R. F. | last3 = Deutsch | first3 = A. J. |bibcode = 1974ApJS...28..271K }} Vizier catalog entry2. ^1 {{cite journal|bibcode=2002yCat.2237....0D|title=VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system|journal=CDS/ADC Collection of Electronic Catalogues|volume=2237|pages=0|author1=Ducati|first1=J. R.|year=2002}} 3. ^{{Cite journal | doi = 10.1051/0004-6361:20041272| title = Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data| journal = Astronomy and Astrophysics| volume = 430| issue = 165| pages = 165-186| year = 2005| last1 = Famaey | first1 = B.| last2 = Jorissen | first2 = A.| last3 = Luri | first3 = X.| last4 = Mayor | first4 = M.| last5 = Udry | first5 = S.| last6 = Dejonghe | first6 = H.| last7 = Turon | first7 = C.|arxiv = astro-ph/0409579 |bibcode = 2005A&A...430..165F }} 4. ^1 2 {{cite web|url=http://www.aavso.org/vsx/index.php?view=detail.top&oid=4805 |title=R Cancri|author1=VSX|last2=Otero|first2=S. A.|date=7 January 2011|website=AAVSO Website|publisher=American Association of Variable Star Observers|accessdate=15 March 2015}} }}{{Stars of Cancer}}{{Var-star-stub}} 9 : Mira variables|Cancer (constellation)|M-type giants|Objects with variable star designations|HR objects|Henry Draper Catalogue objects|Emission-line stars|Hipparcos objects|Durchmusterung objects |
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