phi2 Cancri

{{Short description|Star in the constellation Cancer}}

{{DISPLAYTITLE:Phi² Cancri}}

{{other stars by Bayer designation|Phi Cancri{{!}}φ Cancri}}

{{Starbox begin

| name = Phi² Cancri

}}

{{Starbox observe 2s

| epoch = J2000.0

| equinox = J2000.0 (ICRS)

| constell = Cancer

| component1 = φ² Cnc A

| ra1 = {{RA|08|26|47.07096}}

| dec1 = {{DEC|+26|56|07.7588}}

| appmag_v1 = 6.26

| component2 = φ² Cnc B

| ra2 = {{RA|08|26|46.83329}}

| dec2 = {{DEC|+26|56|03.6655}}

| appmag_v2 = 6.31

}}

{{Starbox character

| component1 = φ² Cnc A

| class = A6V

| component2 = φ² Cnc B

| class2 = A3V

}}

{{Starbox astrometry

| component1 = φ² Cnc A

| radial_v =

| prop_mo_ra = {{Val|-7.487}}

| prop_mo_dec = +1.202

| pm_footnote =

| parallax = 9.4528

| p_error = 0.0351

| parallax_footnote =

| component2 = φ² Cnc B

| radial_v2 =

| prop_mo_ra2 = {{Val|-10.112}}

| prop_mo_dec2 = +0.110

| pm_footnote2 =

| parallax2 = 9.3703

| p_error2 = 0.0306

| parallax_footnote2 =

}}

{{Starbox detail

| source =

| component1= φ² Cnc A

| mass = {{val|1.8|0.3}}

| radius = {{Val|3.19|0.10}}

| luminosity = {{Val|32|1}}

| temperature = {{Val|7674|133|fmt=commas}}

| gravity = {{Val|3.69|0.08}}

| component2 = φ² Cnc B

| mass2 = {{val|2.0|0.3}}

| radius2 = {{Val|2.775|0.091}}

| temperature2 = {{Val|8147|121|fmt=commas}}

| gravity2 = {{Val|3.85|0.07}}

}}

{{Starbox catalog

| names = {{odlist | B=φ² Cnc | F=23 Cancri | FK5=2633 | BD=+27°1612 | HIP=41404 }}

| component1 = φ² Cnc A

| names1 = {{odlist | HD=71151 | HR=3311 | SAO=80188 }}

| component2 = φ² Cnc B

| names2 = {{odlist | HD=71150 | HR=3310 | SAO=80187 }}

}}

{{Starbox reference

| Simbad = *+phi02+Cnc+A | sn=φ² Cnc A

| Simbad2 = *+phi02+Cnc+B | sn2=φ² Cnc B

}}

{{starbox end}}

Phi² Cancri (φ² Cancri) is a binary star in the constellation Cancer. With a combined apparent magnitude of 5.54, this system is faintly visible to the naked eye under ideal conditions. Parallax measurements give a distance of {{Val|345|-|348}} light-years to this system.

Both components are separated by 5.126 arcseconds on the sky. φ² Cancri A, of apparent magnitude 6.26, has a spectral type A6V, making it an A-type main sequence star. It has around 1.8 times the Sun's mass, 3.19 times the Sun's radius, and 32 times the Sun's luminosity. φ² Cancri B, of apparent magnitude 6.31, is also an A-type main sequence star, of spectral type A3V. It has two times the Sun's mass, 2.8 times the radius, and a hotter surface temperature than φ² Cancri A: {{Val|8140|ul=K|fmt=commas}} versus {{Val|7670|u=K|fmt=commas}}.