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ι Pictoris, Latinized from Iota Pictoris, is a suspected multiple star system in the southern Pictor constellation. It is visible to the naked eye as a dim, yellow-white-hued point of light with a combined apparent visual magnitude of 5.28. The two resolvable components have an angular separation of 8.2 arcseconds, equivalent to a physical projected separation of around 450 AU. They are located at a distance of around 127–131 light-years from the Sun, based on parallax.

The two visible components appear as F-type main-sequence stars: the magnitude 5.63 component A has a stellar classification of F0 V, while the cooler, fainter secondary is of class F4 V. Both are themselves are suspected spectroscopic binary stars consisting of roughly equal components. Component B actually has a higher estimated mass than Component A, although the radius of B is smaller. They are both more luminous than the Sun, and have an estimated age of around 500–600 million years.

References

1. ^ Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051.
2. ^ Corbally, C. J. (1984), "Close visual binaries. I - MK classifications", Astrophysical Journal Supplement Series, 55: 657, Bibcode:1984ApJS...55..657C, doi:10.1086/190973.
3. ^ de Bruijne, J. H. J.; Eilers, A.-C. (October 2012), "Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project", Astronomy & Astrophysics, 546: 14, arXiv:1208.3048, Bibcode:2012A&A...546A..61D, doi:10.1051/0004-6361/201219219, S2CID 59451347, A61.
4. ^ David, Trevor J.; Hillenbrand, Lynne A. (2015), "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets", The Astrophysical Journal, 804 (2): 146, arXiv:1501.03154, Bibcode:2015ApJ...804..146D, doi:10.1088/0004-637X/804/2/146, S2CID 33401607.
5. "iot Pic". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-06-21.{{cite web}}: CS1 maint: postscript (link)
   • "* iot Pic A". SIMBAD. Centre de données astronomiques de Strasbourg.
   • "* iot Pic B". SIMBAD. Centre de données astronomiques de Strasbourg.
6. ^ Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869–879, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.
7. Tokovinin, Andrei; et al. (August 2010), "Subsystems in Nearby Solar-type Wide Binaries", The Astronomical Journal, 140 (2): 510–517, arXiv:1006.1253, Bibcode:2010AJ....140..510T, doi:10.1088/0004-6256/140/2/510, S2CID 73629363.

v t e Constellation of Pictor
List of stars in Pictor Pictor in Chinese astronomy
Stars	Bayer α β γ δ ζ η η θ ι κ λ μ ν μ Dor Variable R S RR SW TU TV TW TX AB AE AK VZ HR 1498 1667 1727 1742 1813 1856 1860 1912 1984 2008 2023 2032 2044 2049 2072 2089 2094 2114 2117 2138 2274 2336 2337 2345 2354 2360 2369 2389 2562 HD 37781 40307 41004 41248 Other 2MASS J05581644–4501559 EBLM J0555-57 NGC 1995 PSR J0437−4715 TOI-270 TOI-1338 WISE 0647−6232
Exoplanets AB Pictoris b β Pictoris b c HD 40307 b c d e f g HR 2562 B LHS 1815 b TOI-1338 b c
Galaxies	NGC 1705 1803 1998 2008 Other Pictor A PKS 0529-549 PKS 0537-441 QSO J0529-4351
Category

• F-type main-sequence stars
• Binary stars
• Spectroscopic binaries
• Pictor
• Bayer objects
• Durchmusterung objects
• Henry Draper Catalogue objects
• Hipparcos objects
• Bright Star Catalogue objects