| appmag_v=+5.55[3] (5.58/9.65)[4]
| constell=Antlia
}}{{Starbox character
| class={{nowrap|B9.5 V + F9 Ve}}[4]
| b-v=–0.04[3]
| u-b=–0.18[3]
| variable=
}}{{Starbox astrometry
| radial_v=+14[8]
| prop_mo_ra=–32.512 ± 0.387[9]
| prop_mo_dec=+0.918 ± 0.318[9]
| parallax=7.1868
| p_error=0.2204
| parallax_footnote=[1]
| absmag_v=–0.37[12]
}}{{Starbox detail
| component1 = δ Ant A
| mass={{nowrap|3.35 ± 0.15}}[12]
| radius=
| luminosity=200[12]
| temperature=11,117[12]
| metal_fe=
| rotational_velocity=27[16]
| age_myr=214[12]
}}{{Starbox catalog
| names=CD–29 8383, HD 90972, HIP 51376, HR 4118, NSV 4876, SAO 201442.
}}{{Starbox reference
| Simbad=HD+90972
}}{{Starbox end}}Delta Antliae (δ Ant, δ Antliae) is the Bayer designation for a binary star[12] system in the southern constellation of Antlia. The combined apparent visual magnitude of the system is +5.57,[3] allowing it to be viewed from the suburbs with the naked eye. Judging by the parallax shift of this system, it is located at a distance of 450 ± 10 light-years from Earth.[1] The system is reduced in magnitude by 0.03 due to extinction caused by intervening gas and dust.[4]The primary component of the system has a stellar classification of B9.5 V, indicating that it is a B-type main sequence star. The companion is an F-type main sequence star with a classification of F9 Ve, where the 'e' indicates that there are emission lines in the spectrum. The two stars are separated by 11 arcseconds.[4]
Delta Antliae A, the brighter member of this system, has an estimated 3.4[12] times the mass of the Sun. It is radiating around 200[12] times as much luminosity as the Sun from its outer atmosphere at an effective temperature of 11,117 K.[12] At this heat, it shines with the characteristic blue-white hue of a B-type star.[26]
References
1. ^1 2 3 {{cite DR2|5449301299387283200}}
2. ^1 {{citation | last=Evans | first=D. S. | date=June 20–24, 1966 | editor1-last=Batten | editor1-first=Alan Henry | editor2-last=Heard | editor2-first=John Frederick | title=The Revision of the General Catalogue of Radial Velocities | booktitle=Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30 | location=University of Toronto | publisher=International Astronomical Union | bibcode=1967IAUS...30...57E | postscript=. }}
3. ^1 {{citation | last1=Royer | first1=F. | last2=Zorec | first2=J. | last3=Gómez | first3=A. E. | title=Rotational velocities of A-type stars. III. Velocity distributions | journal=Astronomy and Astrophysics | volume=463 | issue=2 | pages=671–682 |date=February 2007 | doi=10.1051/0004-6361:20065224 | bibcode=2007A&A...463..671R |arxiv = astro-ph/0610785 | postscript=. }}
4. ^1 2 3 4 {{citation | last1=Hurly | first1=P. R. | title=Combined-light UBV Photometry of 103 Bright Southern Visual Doubles | journal=Monthly Notes of the Astronomical Society of Southern Africa | volume=34 | page=7 | date=1975 | bibcode=1975MNSSA..34....7H | postscript=. }}
5. ^1 2 3 4 5 6 7 8 9 {{citation | display-authors=1 | title=Search for low-mass PMS companions around X-ray selected late B stars | last1=Hubrig | first1=S. | last2=Le Mignant | first2=D. | last3=North | first3=P. | last4=Krautter | first4=J. | journal=Astronomy and Astrophysics | volume=372 | pages=152–164 |date=June 2001 | doi=10.1051/0004-6361:20010452 | bibcode=2001A&A...372..152H | arxiv=astro-ph/0103201 | postscript=. }}
6. ^1 2 3 4 {{citation | display-authors=1 | last1=Huélamo | first1=N. | last2=Neuhäuser | first2=R. | last3=Stelzer | first3=B. | last4=Supper | first4=R. | last5=Zinnecker | first5=H. | title=X-ray emission from Lindroos binary systems | journal=Astronomy and Astrophysics | volume=359 | pages=227–241 |date=July 2000 | bibcode=2000A&A...359..227H | postscript=. |arxiv = astro-ph/0005348 }}
7. ^1 {{citation |title=The Colour of Stars |date=December 21, 2004 |work=Australia Telescope, Outreach and Education |publisher=Commonwealth Scientific and Industrial Research Organisation |url=http://outreach.atnf.csiro.au/education/senior/astrophysics/photometry_colour.html |accessdate=2012-01-16 |postscript=. |deadurl=yes |archiveurl=https://www.webcitation.org/6630AbtJZ?url=http://outreach.atnf.csiro.au/education/senior/astrophysics/photometry_colour.html |archivedate=2012-03-10 |df= }}