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11 Aquarii

<tr><th style="background-color: #FFFFC0; text-align: center;" colspan="2">Astrometry</th></tr></th></tr><tr><th colspan="2" style="text-align: center"></tr><tr style="vertical-align:top;"><td>Radial velocity (Rv)</td><td>-17.8 ± 2[2] km/s</td></tr><tr style="vertical-align:top;"><td>Proper motion (μ)</td><td> RA: 48.78[1] mas/yr
Dec.: –138.84[1] mas/yr </td></tr><tr style="vertical-align:top;"><td>Parallax (π)</td><td>37.80 ± 1.01[1]mas</td></tr><tr style="vertical-align:top;"><td>Distance</td><td>86 ± 2 ly
(Lua error in Module:Math at line 495: attempt to index field 'ParserFunctions' (a nil value). ± Lua error in Module:Math at line 495: attempt to index field 'ParserFunctions' (a nil value).pc)</td></tr><tr style="vertical-align:top;"><td>Absolute magnitude (MV)</td><td>4.10[2]</td></tr><tr><th colspan="2" style="text-align: center"></th></tr> <tr><th style="background-color: #FFFFC0; text-align: center;" colspan="2">Details</th></tr></th></tr><tr><th colspan="2" style="text-align: center"></th></tr><tr style="vertical-align:baseline;"><td>Mass</td><td>1.12Script error: No such module "Su".[2] M</td></tr><tr style="vertical-align:baseline;"><td>Radius</td><td>1.30[5] R</td></tr><tr style="vertical-align:baseline;"><td>Surface gravity (log g)</td><td>4.39[6] cgs</td></tr><tr style="vertical-align:baseline;"><td>Temperature</td><td>5,973[6] K</td></tr><tr style="vertical-align:baseline;"><td>Metallicity [Fe/H]</td><td>0.11[2]–0.28[6] dex</td></tr><tr style="vertical-align:baseline;"><td>Rotational velocity (v sin i)</td><td>5[7] km/s</td></tr><tr style="vertical-align:baseline;"><td>Age</td><td>4.7[2] Gyr</td></tr><tr><th colspan="2" style="text-align: center"></th></tr> <tr><th style="background-color: #FFFFC0; text-align: center;" colspan="2">Other designations</th></tr><tr><td colspan="2">
11 Aquarii, HD 199960, HR 8041, SAO 145022, HIP 103682, BD -05 5433, HIC 103682
</td></tr>

<tr><th style="background-color: #FFFFC0; text-align: center;" colspan="2">Database references</th></tr><tr style="vertical-align: top;"><td>SIMBAD</td><td>data</tr>

11 Aquarii
Observation data
Epoch J2000      Equinox J2000
Constellation Aquarius
Right ascension 21h 00m 33.84082s[1]
Declination –04° 43′ 48.9421″[1]
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Characteristics
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This page is a soft redirect. G1 V[3]

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11 Aquarii is a sunlike star (G1V) in the constellation Aquarius with an apparent magnitude is 6.22. It is approximately 86 ly from Earth and is a main-sequence star of spectral type G1 and luminosity class V. Compared to the Sun, this star has a higher abundance of elements more massive than helium. This indicates it belongs to a class of stars called metal-rich. The star is about the same age as the Sun, but it has slightly more mass and has a larger radius.[2][5]

References

  1. 1.0 1.1 1.2 1.3 1.4 van Leeuwen, Floor (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics 474 (2): 653–664, Bibcode:2007A&A...474..653V, arXiv:0708.1752v1, doi:10.1051/0004-6361:20078357  Note: see VizieR catalogue I/311.
  2. 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Nordström, B. et al. (May 2004), "The Geneva-Copenhagen survey of the Solar neighbourhood. Ages, metallicities, and kinematic properties of ˜14 000 F and G dwarfs", Astronomy and Astrophysics 418: 989–1019, Bibcode:2004A&A...418..989N, arXiv:astro-ph/0405198, doi:10.1051/0004-6361:20035959 
  3. Buscombe, W. (1962), "Spectral classification of Southern fundamental stars", Mount Stromlo Observatory Mimeogram 4, Bibcode:1962MtSOM...4....1B 
  4. 4.0 4.1 Cousins, A. W. J. (1964), "Photometric Data for Stars in the Equatorial Zone (Seventh List)", Monthly Notes of the Astronomical Society of Southern Africa 23: 175, Bibcode:1964MNSSA..23..175C 
  5. 5.0 5.1 Takeda, Genya et al. (February 2007), "Structure and Evolution of Nearby Stars with Planets. II. Physical Properties of ~1000 Cool Stars from the SPOCS Catalog", The Astrophysical Journal Supplement Series 168 (2): 297–318, Bibcode:2007ApJS..168..297T, arXiv:astro-ph/0607235, doi:10.1086/509763 
  6. 6.0 6.1 6.2 Sousa, S. G. et al. (August 2007), "Spectroscopic parameters for 451 stars in the HARPS GTO planet search program. Stellar [Fe/H] and the frequency of exo-Neptunes", Astronomy and Astrophysics 487 (1): 373–381, Bibcode:2008A&A...487..373S, arXiv:0805.4826, doi:10.1051/0004-6361:200809698 
  7. Takeda, Yoichi et al. (February 2005), "High-Dispersion Spectra Collection of Nearby F--K Stars at Okayama Astrophysical Observatory: A Basis for Spectroscopic Abundance Standards", Publications of the Astronomical Society of Japan 57 (1): 13–25, Bibcode:2005PASJ...57...13T, doi:10.1093/pasj/57.1.13 

External links


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