R Corvi

{{Starbox begin

| name=R Crv}}

{{Starbox image

| image = 250px

| caption = The visual band light curve of R Corvi, from AAVSO data

}}

{{Starbox observe

| epoch=J2000

| ra={{RA|12|19|37.8727}}{{cite simbad|title = R Crv|accessdate = 24 June 2014}}

| dec={{DEC|−19|15|21.877}}

| appmag_v=6.70

| constell=Corvus }}

{{Starbox character

| class=M4.5-9:e

| b-v=3.70

| u-b=

| variable=Mira }}

{{Starbox astrometry

| radial_v=-22.00

| prop_mo_ra=-1.20

| prop_mo_dec= -10.03

| parallax=

| p_error=

| dist_ly=

| dist_pc=810

| parallax_footnote= }}

{{Starbox catalog

| names= BD-18° 3367, HD 107199, HIP 60106, SAO 157211. }}

{{Starbox reference

| Simbad = R+Crv

}}

{{Starbox end}}

R Corvi (R Crv) is a Mira variable star in the constellation Corvus, which ranges from a magnitude of 6.7 to 14.4 with a period of approximately 317 days.{{cite web|url=http://www.aavso.org/vsx/index.php?view=detail.top&oid=10671 |title=R Corvi|author=VSX|date=4 January 2010|work=AAVSO Website|publisher=American Association of Variable Star Observers|accessdate=24 May 2014}} In the sky it appears close to Gamma Corvi and can be seen in the same binocular field.{{citation | first1=Robert A. | last1=Garfinkle | title=Star-Hopping: Your Visa to Viewing the Universe | publisher=Cambridge University Press | year=1997 | isbn=0-521-59889-3 | page=108 | url=https://books.google.com/books?id=40JzBYGREL0C&pg=PA108}} Extrapolating its luminosity from its period of 317 days yields a distance of 810 parsecs.{{cite journal | title=AGB variables and the Mira period-luminosity relation |author1=Whitelock, Patricia A. |author2=Feast, Michael W. |author3=van Leeuwen, Floor | journal= Monthly Notices of the Royal Astronomical Society| volume =386 |issue = 1| pages=313–23 |date=2008| doi=10.1111/j.1365-2966.2008.13032.x |doi-access=free | bibcode=2008MNRAS.386..313W|arxiv = 0801.4465 |s2cid=17676993 }}