| 释义 |
- References
{{Starbox begin
| name = EW Aquarii
}}{{Starbox observe
| epoch = J2000
| constell = Aquarius
| ra = {{RA|21|11|41.33844}}[1]
| dec = {{DEC|−14|28|20.5590}}[1]
| appmag_v = 6.47[3] {{nowrap|(6.41 - 6.48)}}[4]
}}{{Starbox character
| type =
| class = A8 III[4]
| b-v = {{Val|0.316|0.007}}[3]
| u-b =
| variable = δ Sct[4]
}}{{Starbox astrometry
| radial_v = {{Val|−39.2|2.9}}[3]
| prop_mo_ra = +39.263[1]
| prop_mo_dec = +0.614[1]
| parallax = 7.4366
| p_error = 0.0435
| parallax_footnote = [1]
| absmag_v = 0.99[3]
}}{{Starbox detail
| source =
| mass =
| radius =
| luminosity = 31[13]
| gravity =
| temperature = 7,163[13]
| metal_fe =
| rotational_velocity =
| rotation =
| age_myr =
}}{{Starbox catalog
| names={{odlist | BD=−15° 5908 | FK5=5868 | HD=201707 | HIP=104634 | HR=8102 | SAO=164204 }}
}}{{Starbox reference
| Simbad = HD+201707
}}{{Starbox end}}EW Aquarii is a star in the constellation Aquarius. A low amplitude Delta Scuti variable, it varies between magnitudes 6.41 and 6.48 over 2.16 hours.[4] Located around 439 light-years distant, it shines with a luminosity approximately 31 times that of the Sun and has a surface temperature of 7163 K.[13]References1. ^1 2 3 4 5 {{cite DR2}}
2. ^1 2 3 4 {{cite web | url=http://www.aavso.org/vsx/index.php?view=detail.top&oid=1011 | title=EW Aquarii | last1=Watson | first1=Christopher | date=4 January 2010 | work=The International Variable Star Index | publisher=American Association of Variable Star Observers | accessdate=4 June 2015 }}
3. ^1 2 3 {{cite journal | last1=McDonald | first1=I. | last2=Zijlstra | first2=A. A. | last3=Boyer | first3=M. L. | title=Fundamental Parameters and Infrared Excesses of Hipparcos Stars | journal=Monthly Notices of the Royal Astronomical Society | volume=427 | issue=1 | pages=343–57 | date=2012 | bibcode=2012MNRAS.427..343M | arxiv=1208.2037 | doi=10.1111/j.1365-2966.2012.21873.x }}
4. ^1 2 3 4 {{cite journal | title=XHIP: An extended hipparcos compilation | last1=Anderson | first1=E. | last2=Francis | first2=Ch. | journal=Astronomy Letters | volume=38 | issue=5 | pages=331 | year=2012 | bibcode=2012AstL...38..331A | doi=10.1134/S1063773712050015 | arxiv=1108.4971 }}
}}{{Stars of Aquarius}}{{giant-star-stub}} 8 : A-type giants|Delta Scuti variables|Aquarius (constellation)|Durchmusterung objects|Henry Draper Catalogue objects|Hipparcos objects|HR objects|Objects with variable star designations |