HD 79447

{{about|i Carinae|I Carinae|HD 90589|ι Carinae|Iota Carinae|l Carinae|HD 84810}}

{{Starbox observe

| epoch = J2000.0

| constell = Carina

| ra = {{RA|09|11|16.72089}}

| dec = {{DEC|−62|19|01.1295}}

| appmag_v = +3.96

}}

{{Starbox character

| type =

| class = B3V

| b-v = {{Val|−0.180|0.006}}

| u-b =

| variable =

}}

{{Starbox astrometry

| radial_v = {{Val|+17.5|2.7}}

| prop_mo_ra = −37.48

| prop_mo_dec = +14.59

| parallax = 6.01

| p_error = 0.12

| parallax_footnote =

| absmag_v = −2.14

}}

{{Starbox detail

| source =

| mass = {{Val|7.0|0.1}}

| radius = 5.6

| luminosity = 2,054.17

| gravity = {{Val|3.5|0.1}}

| temperature = {{Val|18900|500|fmt=commas}}

| metal_fe =

| rotation =

| rotational_velocity = 0

| age_myr = {{Val|39.2|7.0}}

}}

{{Starbox catalog

| names = {{odlist | B=i Car | CPD=−61°1201 | HD=79447 | HIP=45101 | HR=3663 | SAO=250471 | GC=12707 }}

}}

{{Starbox reference

| Simbad = HD+79447

}}

HD 79447 is a single star in the southern constellation of Carina. It has the Bayer designation i Carinae, while HD 79447 is the identifier from the Henry Draper catalogue. This star has a blue-white hue and is visible to the naked eye with an apparent visual magnitude of +3.96. It is located at a distance of approximately 540 light years from the Sun based on parallax, and has an absolute magnitude of −2.14. The star drifted further away with a radial velocity of +18 km/s. It is a candidate member of the Lower Centaurus–Crux group of the Sco OB2 association.

This object is a B-type main-sequence star with a stellar classification of B3V. A surface magnetic field has been detected with a strength on the order of {{Val|1|ul=kG}}. It has an estimated age of around 39 million years with no measured spin rate. The star has about 5.6 times the radius of the Sun and 7 times the Sun's mass. It is radiating over two thousand times the luminosity of the Sun from its photosphere at an effective temperature of 18,900 K.

References

{{Reflist|refs=

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{{citation

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{{citation

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| title=Catalogue of rotational velocities of the stars

| journal=Contributions from the Institute of Astrophysics and Kwasan Observatory

| date=1970 | publisher=University of Kyoto

| bibcode=1970crvs.book.....U | postscript=. }}

}}

Category:B-type main-sequence stars

Category:Lower Centaurus Crux

Category:Carina (constellation)

Carinae, i

Category:Durchmusterung objects

079447

045101

3663