Nu Aquilae
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Aquila |
Right ascension | 19h 26m 31.08926s[1] |
Declination | +00° 20′ 18.8549″[1] |
Apparent magnitude (V) | 4.72[2] + 9.6[3] |
Characteristics | |
Spectral type | F3 Ib[4] + A1 IV/V[3] |
U−B color index | +0.60[2] |
B−V color index | +0.59[2] |
Astrometry | |
Radial velocity (Rv) | –2.30[5] km/s |
Proper motion ( | RA: −0.562[1] mas/yr Dec.: −2.294[1] mas/yr |
Parallax ( | 0.8752 ± 0.0869 mas[1] |
Distance | 3,700 ± 400 ly (1,100 ± 100 pc) |
Absolute magnitude (MV) | −5.58[6] |
Details | |
Mass | 12.5[4] M☉ |
Radius | 108[7] R☉ |
Luminosity | 9848[7] L☉ |
Surface gravity (log g) | 1.43[4] cgs |
Temperature | 5,528[7] K |
Metallicity [Fe/H] | −0.03[8] dex |
Rotational velocity (v sin i) | 13[9] km/s |
Age | 15[4] Myr |
Other designations | |
Database references | |
SIMBAD | data |
Nu Aquilae, Latinized from
The spectrum of
References
[edit]- ^ a b c d e f 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 Ducati, 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.
- ^ a b c Burnichon, M. L. (1975). "Investigations on the intrinsic properties of high-luminosity blue stars inferred from observations of multiple systems". Astronomy and Astrophysics. 45: 383. Bibcode:1975A&A....45..383B.
- ^ a b c d e f Lyubimkov, L. S.; et al. (2010). "Accurate fundamental parameters for A-, F- and G-type Supergiants in the solar neighbourhood". Monthly Notices of the Royal Astronomical Society. 402 (2): 1369–1379. arXiv:0911.1335. Bibcode:2010MNRAS.402.1369L. doi:10.1111/j.1365-2966.2009.15979.x. S2CID 119096173.
- ^ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. S2CID 119231169.
- ^ Kovtyukh, V. V; Chekhonadskikh, F. A; Luck, R. E; Soubiran, C; Yasinskaya, M. P; Belik, S. I (2010). "Accurate luminosities for F-G supergiants from FeII/FeI line depth ratios". Monthly Notices of the Royal Astronomical Society. 408 (3): 1568. Bibcode:2010MNRAS.408.1568K. doi:10.1111/j.1365-2966.2010.17217.x.
- ^ a b c d e McDonald, I.; Zijlstra, A. A.; Watson, R. A. (2017-10-01), "Fundamental parameters and infrared excesses of Tycho-Gaia stars", Monthly Notices of the Royal Astronomical Society, 471 (1): 770–791, arXiv:1706.02208, Bibcode:2017MNRAS.471..770M, doi:10.1093/mnras/stx1433, ISSN 0035-8711 Nu Aquilae's database entry at VizieR.
- ^ Lyubimkov, Leonid S; Lambert, David L; Korotin, Sergey A; Rachkovskaya, Tamara M; Poklad, Dmitry B (2015). "Carbon abundance and the N/C ratio in atmospheres of A-, F- and G-type supergiants and bright giants". Monthly Notices of the Royal Astronomical Society. 446 (4): 3447. arXiv:1411.2722. Bibcode:2015MNRAS.446.3447L. doi:10.1093/mnras/stu2299. S2CID 118473779.
- ^ Bernacca, P. L.; Perinotto, M. (1970), "A catalogue of stellar rotational velocities", Contributi Osservatorio Astronomico di Padova in Asiago, 239 (1): 1, Bibcode:1970CoAsi.239....1B.
- ^ "The Colour of Stars", Australia Telescope, Outreach and Education, Commonwealth Scientific and Industrial Research Organisation, December 21, 2004, archived from the original on December 3, 2013, retrieved 2012-01-16
- ^ Mason, Brian D.; et al. (2001). "The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog". The Astronomical Journal. 122 (6): 3466. Bibcode:2001AJ....122.3466M. doi:10.1086/323920.
External links
[edit]- Kaler, James B., "Nu Aquilae", Stars, University of Illinois, retrieved 2017-11-16
- Image
ν Aquilae - HR 7387
- CCDM 19265+0021