User:Praemonitus/sandbox
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- User:Praemonitus/Draft
- PetScan
- User:Praemonitus/Astronomy style guide, Wikipedia:WikiProject Astronomy/Manual of Style
- William Thynne Lynn, Thomas Edward Cheatham Jr., John Donald Fernie
- HD 148937, HD 200775, HD 185351, HD 100764, HD 57682, HD 191612, HD 175640, HD 206893, HD 206893, HD 43317, HD 191612, HD 213637, HD 43317, HD 144432, HD 50138
- Example: U Pegasi
In work
[edit]| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquila |
| Right ascension | 18h 56m 22.660s[1] |
| Declination | −01° 47′ 59.50″[1] |
| Apparent magnitude (V) | 6.20[2] |
| Characteristics | |
| Spectral type | B9 IIIp(HgMnEu st, CaMg wk)[3] |
| B−V color index | −0.046±0.005[2] |
| Astrometry | |
| Radial velocity (Rv) | −26±4[2] km/s |
| Proper motion (μ) | RA: −2.811 mas/yr Dec.: −19.318 mas/yr |
| Parallax (π) | 6.3201 ± 0.0448 mas[1] |
| Distance | 516 ± 4 ly (158 ± 1 pc) |
| Absolute magnitude (MV) | 0.22[2] |
| Details | |
| Luminosity | 94.56[2] L☉ |
| Surface gravity (log g) | 4.03[4] cgs |
| Temperature | 12324±9[4] K |
| Metallicity [Fe/H] | 0.18±0.04[2] dex |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 175640 is a star in the equatorial constellation of Aquila.
References
[edit]- ^ a b c Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
- ^ a b c d e f Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv:1108.4971, Bibcode:2012AstL...38..331A, doi:10.1134/S1063773712050015, S2CID 119257644.
- ^ Abt, Helmut A.; Morrell, Nidia I. (1995), "The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars", The Astrophysical Journal Supplement Series, 99: 135, Bibcode:1995ApJS...99..135A, doi:10.1086/192182.
- ^ a b García Pérez, A. E.; Sánchez-Blázquez, P.; Vazdekis, A.; Allende Prieto, C.; Milone, A. de C.; Sansom, A. E.; Gorgas, J.; Falcón-Barroso, J.; Martín Navarro, I.; Cacho, R. (August 2021), "An extension of the MILES library with derived Teff, log g, [Fe/H], and [α/Fe]", Monthly Notices of the Royal Astronomical Society, 505 (3): 4496–4514, Bibcode:2021MNRAS.505.4496G, doi:10.1093/mnras/stab076.
{{citation}}: CS1 maint: unflagged free DOI (link) - ^ "HD 175640". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2024-11-12.
Further reading
[edit]- Castelli, F.; et al. (August 2015), "New Mn II energy levels from the STIS-HST spectrum of the HgMn star HD 175640", Astronomy & Astrophysics, 580, id. A10, arXiv:1504.07514, Bibcode:2015A&A...580A..10C, doi:10.1051/0004-6361/201525903.
- Ghazaryan, S.; et al. (November 2013), "Attempt to detect the granulation signature in the HgMn star HD 175640 from CoRoT light curves", Monthly Notices of the Royal Astronomical Society, 435 (3): 1852–1856, Bibcode:2013MNRAS.435.1852G, doi:10.1093/mnras/stt1339.
{{citation}}: CS1 maint: unflagged free DOI (link) - Castelli, F.; Hubrig, S. (October 2004), "A spectroscopic atlas of the HgMn star HD 175640 (B9 V) λλ 3040-10 000 Å", Astronomy and Astrophysics, 425: 263–270, Bibcode:2004A&A...425..263C, doi:10.1051/0004-6361:20041011.