AH Scorpii

{{Short description|Red supergiant star in the constellation Scorpius}}

{{Starbox begin

| name=AH Scorpii

}}

{{Starbox observe

| epoch=J2000

| ra={{RA|17|11|17.01945}}

| dec={{DEC|-32|19|30.7140}}

| constell=Scorpius

| appmag_v=6.5 - 9.6{{cite journal|bibcode=2006MNRAS.372.1721K|arxiv=astro-ph/0608438|title=Variability in red supergiant stars: Pulsations, long secondary periods and convection noise|journal=Monthly Notices of the Royal Astronomical Society|volume=372|issue=4|pages=1721–1734|last1=Kiss|first1=L. L.|last2=Szabó|first2=Gy. M.|last3=Bedding|first3=T. R.|author3-link= Tim Bedding|year=2006|doi=10.1111/j.1365-2966.2006.10973.x|doi-access=free |s2cid=5203133}}

}}

{{Starbox character

| type=Red supergiant

| class=M4-5 Ia-Iab

| b-v=+2.57

| u-b=

| variable=SRc{{cite journal|bibcode=2009yCat....102025S|title=VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)|journal=VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S|volume=1|display-authors=etal|last1=Samus|first1=N. N.|last2=Durlevich|first2=O. V.|year=2009}}

}}

{{Starbox astrometry

| radial_v={{val|-13.40|2.4}}{{cite journal|bibcode=2006AstL...32..759G|title=Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system|journal=Astronomy Letters|volume=32|issue=11|pages=759–771|last1=Gontcharov|first1=G. A.|year=2006|doi=10.1134/S1063773706110065|arxiv = 1606.08053 |s2cid=119231169}}

| prop_mo_ra={{val|-2.322|0.115}}

| prop_mo_dec={{val|-2.610|0.068}}

| parallax=0.5632

| p_error=0.0799

| parallax_footnote={{cite Gaia DR3|5979926504430920192}}

| dist_pc={{val|2,260|190|fmt=commas}}

| dist_ly={{val|7,400|620|fmt=commas}}

| absmag_v=−5.8{{cite journal|bibcode=1977A&A....54..593B|title=The supergiant OH stars S Per and AH SCO - Conditions for OH emission in circumstellar envelopes|journal=Astronomy and Astrophysics|volume=54|pages=593|last1=Baudry|first1=A.|last2=Le Squeren|first2=A. M.|last3=Lepine|first3=J. R. D.|year=1977}}

}}

{{Starbox detail

| mass=20{{Cite journal |last1=González-Torà |first1=G. |last2=Wittkowski |first2=M. |last3=Davies |first3=B. |last4=Plez |first4=B. |date=2024-03-01 |title=The effect of winds on atmospheric layers of red supergiants II. Modelling VLTI/GRAVITY and MATISSE observations of AH Sco, KW Sgr, V602 Car, CK Car, and V460 Car |bibcode=2024A&A...683A..19G |journal=Astronomy and Astrophysics |volume=683 |pages=A19 |doi=10.1051/0004-6361/202348047 |issn=0004-6361|arxiv=2312.12521 }}

| luminosity={{val|329000|86000|fmt=commas}}

| radius={{val|1,411|124|fmt=commas}}{{Cite journal | last1 = Arroyo-Torres | first1 = B. | last2 = Wittkowski | first2 = M. | last3 = Marcaide | first3 = J. M. | last4 = Hauschildt | first4 = P. H. | title = The atmospheric structure and fundamental parameters of the red supergiants AH Scorpii, UY Scuti, and KW Sagittarii | doi = 10.1051/0004-6361/201220920 | journal = Astronomy & Astrophysics | volume = 554 | pages = A76 | year = 2013 |arxiv = 1305.6179 |bibcode = 2013A&A...554A..76A | s2cid = 73575062 }}

| gravity=−0.5

| temperature=3,682

}}

{{Starbox catalog

| names= AH Sco, AN 223.1907, GSC 07365-00527, HD 155161, HIP 84071, CD−32°12429, 2MASS J17111702-3219308, IRC−30282, IRAS 17080-3215, RAFGL 1927, AAVSO 1704-32

}}

{{Starbox reference

|Simbad=AH+Sco

}}

{{starbox end}}

AH Scorpii (abbreviated to AH Sco) is a red supergiant variable star located in the constellation Scorpius. It is one of the largest stars known by radius and is also one of the most luminous red supergiant stars in the Milky Way.