| 词条 | HD 16004 |
| 释义 |
| name = HD 16004 }}{{Starbox observe | epoch = J2000 | constell = Andromeda | ra = {{RA|02|35|27.90126}}[1] | dec = {{DEC|+39|39|51.7705}}[1] | appmag_v = 6.26[3] }}{{Starbox character | class = {{nowrap|B9.5 III HgMn}}[2] | b-v = −0.30[2] | u-b = −0.33[2] }}{{Starbox astrometry | radial_v = {{val|-6.8|1.1}} | prop_mo_ra = +16.659[1] | prop_mo_dec = −34.296[1] | parallax = 4.9384 | p_error = 0.1650 | parallax_footnote = [1] | absmag_v = −0.36[11] }}{{Starbox detail | mass = | radius = | luminosity = | temperature = 12,150[3] | metal = | gravity = 4.15[4] | rotational_velocity = 30[5] | age_myr = 75.3[11] }}{{Starbox catalog | names = {{odlist | BD=+39° 573 | HD=16004 | HIP=12057 | HR=746 | SAO=55680 }} }}{{Starbox reference | Simbad = HD+16004 }}{{Starbox end}}HD 16004 is star in the northern constellation of Andromeda. It is a challenge to see with the naked eye even under good viewing conditions, having an apparent visual magnitude of 6.26.[2] Located approximately {{convert|202|pc|ly}} away, it is moving closer to the Earth with a heliocentric radial velocity of -6.8 km/s. This is a chemically peculiar Hg-Mn star[18] with a stellar classification of {{nowrap|B9.5 III HgMn}}.[2] References1. ^1 2 3 4 {{cite DR2}} [6][7]2. ^1 2 3 4 5 {{cite journal|bibcode=1980A&A....81..142J|title=The absolute magnitude of the Hg-Mn stars|journal=Astronomy and Astrophysics|volume=81|pages=142|author1=Jaschek|first1=M.|last2=Jaschek|first2=C.|last3=Grenier|first3=S.|last4=Gomez|first4=A. E.|last5=Heck|first5=A.|year=1980}} 3. ^{{cite journal|bibcode= 1994BSAO...38..152G|title= A new list of effective temperatures of chemically peculiar stars. II|journal= Bulletin of the Special Astrophysical Observatory|volume= 38|pages= 152|author1= Glagolevskij|first1= Yu. V.|year= 1994}} 4. ^{{cite journal|bibcode=1979PASJ...31..473T|title=Surface gravity of Mn-Hg stars|journal=Publications of the Astronomical Society of Japan|volume=31|pages=473|author1=Takada|first1=M.|year=1979}} 5. ^{{cite journal|bibcode= 2002ApJ...573..359A|title= Rotational Velocities of B Stars|journal= The Astrophysical Journal|volume= 573|pages= 359|author1= Abt|first1= Helmut A.|last2= Levato|first2= Hugo|last3= Grosso|first3= Monica|year= 2002|doi= 10.1086/340590}} 6. ^1 2 {{cite journal |last1=Westin |first1=T. N. G. |title=The local system of early type stars - Spatial extent and kinematics |journal=Astronomy and Astrophysics Supplement Series |volume=60 |pages=99–134 |date=1985 |bibcode=1985A&AS...60...99W}} 7. ^1 {{cite journal | bibcode=2009A&A...498..961R | title=Catalogue of Ap, HgMn and Am stars |journal=Astronomy and Astrophysics | volume=498 | issue=3 | pages=961 | last1=Renson | first1=P. | last2=Manfroid | first2=J. | year=2009 | doi=10.1051/0004-6361/200810788 }} }}{{Stars of Andromeda}}{{Multi-star-stub}} 7 : Andromeda (constellation)|Henry Draper Catalogue objects|B-type giants|HR objects|Hipparcos objects|Durchmusterung objects|Mercury-manganese stars |
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