19 Puppis is a
binary star[10] system in the southern
constellation of
Puppis, near the northern border with
Hydra and
Monoceros. It is visible to the naked eye as a faint, yellow-hued star with an
apparent visual magnitude of 4.72.[2] The system is located approximately 177
light years away from the system based on parallax.[1] It is receding from the Earth with a heliocentric
radial velocity of +36 km/s,[4] having come to within 31 light-years some 1.4 million years ago.[11]
The secondary member, component B, is a magnitude 11.2 star at an
angular separation of 2.1
″ from the primary.[10] Four
visual companions have been reported. These are component C, at magnitude 13.2 and separation 30.7", D, at magnitude 8.9 and separation 57.8", E, at magnitude 9.37 and separation 70.1", and F, at magnitude 10.74 and separation 114.1".[13]
^
abcdDucati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues. 2237.
Bibcode:
2002yCat.2237....0D.
^
abHoffleit, D.; Warren, W. H. (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)". VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H. 5050.
Bibcode:
1995yCat.5050....0H.
^
abcdeAllende Prieto, C.; Lambert, D. L. (1999). "Fundamental parameters of nearby stars from the comparison with evolutionary calculations: Masses, radii and effective temperatures". Astronomy and Astrophysics. 352: 555–562.
arXiv:astro-ph/9911002.
Bibcode:
1999A&A...352..555A.
Vizier catalog entry