26 Aquarii

{{short description|Star in the constellation Aquarius}}

{{Starbox begin}}

{{Starbox observe

| epoch = J2000.0 (ICRS)

| constell = Aquarius

| ra = {{RA|21|42|10.11292}}

| dec = {{DEC|+01|17|06.9019}}

| appmag_v = 5.66

}}

{{Starbox character

| type =

| class = K2(III)

| b-v = {{Val|1.446|0.008}}

| u-b =

| variable =

}}

{{Starbox astrometry

| radial_v = {{Val|+8.15|0.19}}

| prop_mo_ra = −4.298

| prop_mo_dec = −7.530

| parallax = 3.4044

| p_error = 0.1310

| parallax_footnote =

| absmag_v = −1.98

}}

{{Starbox detail

| mass =

| radius = {{Val|54.5|3.5|3.00}}

| luminosity = {{Val|842|38}}

| temperature = {{Val|4210|121|129|fmt=commas}}

| gravity = 1.2

| metal_fe =

| rotational_velocity = 3.2

| age_myr =

}}

{{Starbox catalog

| names={{odlist | F=26 Aqr | BD=+00°4770 | HD=206445 | HIP=107144 | HR=8287 | SAO=126997 | GC=30377 }}

}}

{{Starbox reference

| Simbad=26+Aqr

}}

{{Starbox end}}

26 Aquarii is a single star located approximately 960 light years away from the Sun in the zodiac constellation of Aquarius. 26 Aquarii is the Flamsteed designation. It is visible to the naked eye as a dim, orange-hued star with an apparent visual magnitude of 5.66. This object is moving away from the Earth with a heliocentric radial velocity of +8 km/s.

Houk and Swift (1999) listed a stellar classification of K2(III) for 26 Aquarii, corresponding to an evolved K-type giant of uncertain luminosity class. Bartkevicius and Lazauskaite (1997) found spectral traits of {{nowrap|MD-Ba?-K3 II–III, K2 Ia}}, suggesting some type of giant K-type star with a suspected metal deficiency (MD) of barium. It has 54.5 times the Sun's radius and is radiating 842 times the luminosity of the Sun from its photosphere at an effective temperature of 4,210 K.

References

{{reflist|refs=

{{cite simbad | title=26 Aqr | access-date=2019-05-16 }}

{{cite DR2|2693541327543209472}}

{{citation

| title=XHIP: An extended hipparcos compilation

| last1=Anderson | first1=E. | last2=Francis | first2=Ch.

| journal=Astronomy Letters | postscript=.

| volume=38 | issue=5 | pages=331 | year=2012

| bibcode=2012AstL...38..331A | arxiv=1108.4971

| doi=10.1134/S1063773712050015 | s2cid=119257644 }}

{{citation

| title=A catalogue of multiplicity among bright stellar systems

| last1=Eggleton | first1=P. P. | last2=Tokovinin | first2=A. A.

| journal=Monthly Notices of the Royal Astronomical Society

| volume=389 | issue=2 | pages=869 | date=2008

| doi=10.1111/j.1365-2966.2008.13596.x | doi-access=free | arxiv=0806.2878

| bibcode=2008MNRAS.389..869E | s2cid=14878976 | postscript=. }}

{{citation

| title=On Infrared Excesses Associated with Li-rich K Giants

| display-authors=1 | last1=Rebull | first1=Luisa M.

| last2=Carlberg | first2=Joleen K. | last3=Gibbs | first3=John C.

| last4=Deeb | first4=J. Elin | last5=Larsen | first5=Estefania

| last6=Black | first6=David V. | last7=Altepeter | first7=Shailyn

| last8=Bucksbee | first8=Ethan | last9=Cashen | first9=Sarah

| last10=Clarke | first10=Matthew | last11=Datta | first11=Ashwin

| last12=Hodgson | first12=Emily | last13=Lince | first13=Megan

| journal=The Astronomical Journal | postscript=.

| volume=150 | issue=4 | id=123 | pages=45 | date=October 2015

| doi=10.1088/0004-6256/150/4/123 | bibcode=2015AJ....150..123R | arxiv=1507.00708 | s2cid=46595131 }}

{{citation

| title=Classification of Population II Stars in the Vilnius Photometric System. II. Results

| last1=Bartkevicius | first1=A. | last2=Lazauskaite | first2=R.

| journal=Baltic Astronomy | postscript=.

| volume=6 | pages=499–572 | date=December 1997

| issue=4 | doi=10.1515/astro-1997-0402 | bibcode=1997BaltA...6..499B | doi-access=free }}

{{citation

| last1=Houk | first1=N. | last2=Swift | first2=C.

| title=Michigan catalogue of two-dimensional spectral types for the HD Stars

| journal=Michigan Spectral Survey | volume=5 | year=1999

| bibcode=1999MSS...C05....0H | postscript=. }}

}}

{{Stars of Aquarius}}

{{DEFAULTSORT:26 Aquarii}}

Category:K-type giants

Category:Aquarius (constellation)

Category:Durchmusterung objects